4453dc976b
Teach PHIElimination to split critical edges when -split-phi-edges is enabled.
...
Critical edges leading to a PHI node are split when the PHI source variable is
live out from the predecessor block. This help the coalescer eliminate more
PHI joins.
llvm-svn: 86725
2009-11-10 22:01:05 +00:00
19f235e455
Refactoring: Extract method PHIElimination::isLiveOut().
...
Clean up some whitespace.
No functional changes.
llvm-svn: 86724
2009-11-10 22:00:56 +00:00
40b15f220d
improve comment.
...
llvm-svn: 86723
2009-11-10 21:45:09 +00:00
80e7e5a429
Make jump threading eliminate blocks that just contain phi nodes,
...
debug intrinsics, and an unconditional branch when possible. This
reuses the TryToSimplifyUncondBranchFromEmptyBlock function split
out of simplifycfg.
llvm-svn: 86722
2009-11-10 21:40:01 +00:00
87fe40b32d
Generalize lsr code that optimize loop to count down towards zero.
...
llvm-svn: 86715
2009-11-10 21:14:05 +00:00
bb336a1987
make this handle redefinition of malloc function with different prototype correctly
...
llvm-svn: 86712
2009-11-10 19:53:28 +00:00
e034867587
Change Thumb1 address mode printing, instead of
...
[r0, #2 * 4]
Now
[r0, #8 ]
This makes Thumb2 assembly more uniform and frankly the scale doesn't add much.
llvm-svn: 86707
2009-11-10 19:48:13 +00:00
e6548f4106
Add a comment.
...
llvm-svn: 86706
2009-11-10 19:44:56 +00:00
23344095de
Add defensive break.
...
llvm-svn: 86705
2009-11-10 19:36:40 +00:00
b9415c7d9a
Add a monstrous hack to improve X86ISelDAGToDAG compile time.
...
- Force NDEBUG on in any Release build. This drops the compile time to ~100s
from ~600s, in Release mode.
- This may just be a temporary workaround, I don't know the true nature of the
gcc-4.2 compile time performance problem.
llvm-svn: 86695
2009-11-10 18:24:37 +00:00
8d4cde2b55
Fix obvious typo.
...
llvm-svn: 86694
2009-11-10 18:21:37 +00:00
b8f79ba10e
clarify logic.
...
llvm-svn: 86689
2009-11-10 17:00:47 +00:00
1925d3a1d1
Teach DSE to eliminate useless trampolines.
...
llvm-svn: 86683
2009-11-10 13:49:50 +00:00
04e0c95248
Add brackets to make gcc-4.4 happy.
...
llvm-svn: 86681
2009-11-10 09:32:10 +00:00
dca0c28452
Codegen support for the llvm.invariant/lifetime.start/end intrinsics:
...
just throw them away.
llvm-svn: 86678
2009-11-10 09:08:09 +00:00
fcc77b1c02
Update computeArraySize() to use ComputeMultiple() to determine the array size associated with a malloc; also extend PerformHeapAllocSRoA() to check if the optimized malloc's arg had its highest bit set, so that it is safe for ComputeMultiple() to look through sext instructions while determining the optimized malloc's array size
...
llvm-svn: 86676
2009-11-10 08:32:25 +00:00
4744488e8d
Add ComputeMultiple() analysis function that recursively determines if a Value V is a multiple of unsigned Base
...
llvm-svn: 86675
2009-11-10 08:28:35 +00:00
1559bedcc7
unify the code that determines whether it is a good idea to change the type
...
of a computation. This fixes some infinite loops when dealing with TD that
has no native types.
llvm-svn: 86670
2009-11-10 07:23:37 +00:00
5b3def9b86
Simplify.
...
llvm-svn: 86668
2009-11-10 07:00:43 +00:00
9027147fb1
Reapply r86359, "Teach dead store elimination that certain intrinsics write to
...
memory just like a store" with bug fixed (partial-overwrite.ll is the
regression test).
llvm-svn: 86667
2009-11-10 06:46:40 +00:00
cbd18fc93d
refactor TryToSimplifyUncondBranchFromEmptyBlock out of SimplifyCFG.
...
llvm-svn: 86666
2009-11-10 05:59:26 +00:00
bbc1067001
CMake: Support for building llvm loadable modules.
...
llvm-svn: 86656
2009-11-10 02:45:37 +00:00
05671ea10a
Fix PR5445
...
llvm-svn: 86651
2009-11-10 02:35:13 +00:00
ab799110c6
I misread the parens, not so redundant after all.
...
llvm-svn: 86648
2009-11-10 02:04:54 +00:00
38c44ea6b0
make jump threading recursively simplify expressions instead of doing it
...
just one level deep. On the testcase we go from getting this:
F1: ; preds = %T2
%F = and i1 true, %cond ; <i1> [#uses=1]
br i1 %F, label %X, label %Y
to a fully threaded:
F1: ; preds = %T2
br label %Y
This changes gets us to the point where we're forming (too many) switch
instructions on doug's strswitch testcase.
llvm-svn: 86646
2009-11-10 01:57:31 +00:00
ee89d5a4d0
remove some redundant parens.
...
llvm-svn: 86645
2009-11-10 01:56:04 +00:00
42cc1806d8
Remove an unused variable.
...
llvm-svn: 86642
2009-11-10 01:37:57 +00:00
48079d4bf5
Minor code simplification.
...
llvm-svn: 86641
2009-11-10 01:36:20 +00:00
be11db6894
don't invalidate PN, rewrite of this code is in progress anyway.
...
llvm-svn: 86639
2009-11-10 01:19:06 +00:00
fb7f87d5a3
add a new SimplifyInstruction API, which is like ConstantFoldInstruction,
...
except that the result may not be a constant. Switch jump threading to
use it so that it gets things like (X & 0) -> 0, which occur when phi preds
are deleted and the remaining phi pred was a zero.
llvm-svn: 86637
2009-11-10 01:08:51 +00:00
b40d3f76a0
Fix DenseMap iterator constness.
...
This patch forbids implicit conversion of DenseMap::const_iterator to
DenseMap::iterator which was possible because DenseMapIterator inherited
(publicly) from DenseMapConstIterator. Conversion the other way around is now
allowed as one may expect.
The template DenseMapConstIterator is removed and the template parameter
IsConst which specifies whether the iterator is constant is added to
DenseMapIterator.
Actually IsConst parameter is not necessary since the constness can be
determined from KeyT but this is not relevant to the fix and can be addressed
later.
Patch by Victor Zverovich!
llvm-svn: 86636
2009-11-10 01:02:17 +00:00
a71e9d61be
factor simplification logic for AND and OR out to InstSimplify from instcombine.
...
llvm-svn: 86635
2009-11-10 00:55:12 +00:00
0d412c2528
Fixed to address code review. No functional changes.
...
llvm-svn: 86634
2009-11-10 00:48:55 +00:00
124fc5e252
Fix MemoryBuffer::getSTDIN to *not* return null if stdin is empty, this is a lame API.
...
Also, Stringrefify some more MemoryBuffer functions, and add two performance FIXMEs.
llvm-svn: 86630
2009-11-10 00:43:58 +00:00
cf89db135e
Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies.
...
llvm-svn: 86628
2009-11-10 00:15:47 +00:00
ccfdceb22c
pull a bunch of logic out of instcombine into instsimplify for compare
...
simplification, this handles the foldable fcmp x,x cases among many others.
llvm-svn: 86627
2009-11-09 23:55:12 +00:00
2ac504729b
Pass the (optional) TargetData object to ConstantFoldInstOperands
...
and ConstantFoldCompareInstOperands.
llvm-svn: 86626
2009-11-09 23:34:17 +00:00
beadc6e8c7
inline a simple function.
...
llvm-svn: 86625
2009-11-09 23:31:49 +00:00
c1f19071f8
rename SimplifyCompare -> SimplifyCmpInst and split it into
...
Simplify[IF]Cmp pieces. Add some predicates to CmpInst to
determine whether a predicate is fp or int.
llvm-svn: 86624
2009-11-09 23:28:39 +00:00
2524b04d0e
Now that the default is 'enabled,' a separate command line option for ARM is
...
not necessary.
llvm-svn: 86621
2009-11-09 23:11:45 +00:00
cdfb80de16
fix ConstantFoldCompareInstOperands to take the LHS/RHS as
...
individual operands instead of taking a temporary array
llvm-svn: 86619
2009-11-09 23:06:58 +00:00
800aad3dda
use instructionsimplify instead of a weak clone of ad-hoc folding stuff.
...
llvm-svn: 86616
2009-11-09 23:00:14 +00:00
084a1b5581
stub out a new libanalysis "instruction simplify" interface that
...
takes decimated instructions and applies identities to them. This
is pretty minimal at this point, but I plan to pull some instcombine
logic out into these and similar routines.
llvm-svn: 86613
2009-11-09 22:57:59 +00:00
8483f12ac5
Remove dlsym stubs, with Nate Begeman's permission.
...
llvm-svn: 86606
2009-11-09 22:34:19 +00:00
1218b804fb
Enable dynamic stack realignment by default.
...
llvm-svn: 86604
2009-11-09 22:32:40 +00:00
2978ca7b79
stub out a new form of BasicBlock::RemovePredecessorAndSimplify which
...
simplifies instruction users of PHIs when the phi is eliminated. This
will be moved to transforms/utils after some other refactoring.
llvm-svn: 86603
2009-11-09 22:32:36 +00:00
55d3480769
Set dynamic stack realignment to real values.
...
llvm-svn: 86602
2009-11-09 22:32:03 +00:00
a951526510
Remove an unneeded #include.
...
llvm-svn: 86601
2009-11-09 22:28:30 +00:00
f04c4cdb27
Fix for 64-bit builds.
...
llvm-svn: 86600
2009-11-09 22:28:21 +00:00
787997f77e
Similar to r86588, but for Darwin this time.
...
llvm-svn: 86592
2009-11-09 21:45:26 +00:00
7307bff420
The jump table was being generated before the end label for exception handling
...
was generated. This caused code like this:
## The asm code for the function
.section __TEXT,__const
.align 2
lJTI11_0:
LJTI11_0:
.long LBB11_16
.long LBB11_4
.long LBB11_5
.long LBB11_6
.long LBB11_7
.long LBB11_8
.long LBB11_9
.long LBB11_10
.long LBB11_11
.long LBB11_12
.long LBB11_13
.long LBB11_14
Leh_func_end11: ## <---now in the wrong section!
The `Leh_func_end11' would then end up in the wrong section, causing the
resulting EH frame information to be wrong:
__ZL11CheckRightsjPKcbRbRP6NSData.eh:
.set Lset500eh,Leh_frame_end11-Leh_frame_begin11
.long Lset500eh ; Length of Frame Information Entry
Leh_frame_begin11:
.long Leh_frame_begin11-Leh_frame_common
.long Leh_func_begin11-.
.set Lset501eh,Leh_func_end11-Leh_func_begin11
.long Lset501eh ; FDE address range
`Lset501eh' is now something huge instead of the real value.
The X86 back-end generates the jump table after the EH information is
emitted. Do the same here.
llvm-svn: 86588
2009-11-09 21:20:14 +00:00
2745d19287
Print "..." instead of all the uninteresting register clobbers on call
...
instructions. This makes CodeGen dumps significantly less noisy.
Example before:
BL <ga:@bar>, %R0<imp-def>, %R1<imp-def,dead>, %R2<imp-def,dead>, %R3<imp-def,dead>, %R12<imp-def,dead>, %LR<imp-def,dead>, %D0<imp-def,dead>, %D1<imp-def,dead>, %D2<imp-def,dead>, %D3<imp-def,dead>, %D4<imp-def,dead>, %D5<imp-def,dead>, %D6<imp-def,dead>, %D7<imp-def,dead>, %D16<imp-def,dead>, %D17<imp-def,dead>, %D18<imp-def,dead>, %D19<imp-def,dead>, %D20<imp-def,dead>, %D21<imp-def,dead>, %D22<imp-def,dead>, %D23<imp-def,dead>, %D24<imp-def,dead>, %D25<imp-def,dead>, %D26<imp-def,dead>, %D27<imp-def,dead>, %D28<imp-def,dead>, %D29<imp-def,dead>, %D30<imp-def,dead>, %D31<imp-def,dead>, %CPSR<imp-def,dead>, %FPSCR<imp-def,dead>
Same example after:
BL <ga:@bar>, %R0<imp-def>, %R1<imp-def,dead>, %LR<imp-def,dead>, %CPSR<imp-def,dead>, ...
llvm-svn: 86583
2009-11-09 19:38:45 +00:00
ccb4584edd
Default-addressspace null pointers don't alias anything. This allows
...
GVN to be more aggressive. Patch by Hans Wennborg! (with a comment added by me)
llvm-svn: 86582
2009-11-09 19:29:11 +00:00
d2f9c044c0
Fix dependencies added to model memory aliasing for post-RA scheduling. The dependencies were overly conservative for memory access that are known not to alias.
...
llvm-svn: 86580
2009-11-09 19:22:17 +00:00
f324dd65f8
Fix a comment in a typo that Duncan noticed.
...
llvm-svn: 86575
2009-11-09 18:59:22 +00:00
c146c78060
Generalize LCSSA to handle loops with exits with predecessors outside
...
the loop. This is needed because with indirectbr it may not be possible
for LoopSimplify to guarantee that all loop exit predecessors are
inside the loop. This fixes PR5437.
LCCSA no longer actually requires LoopSimplify form, but for now it
must still have the dependency because the PassManager doesn't know
how to schedule LoopSimplify otherwise.
llvm-svn: 86569
2009-11-09 18:28:24 +00:00
5196e415ad
Minor tidiness fixes.
...
llvm-svn: 86565
2009-11-09 18:19:43 +00:00
6f67f8902a
Constify MachineFunctionAnalysis' TargetMachine reference.
...
llvm-svn: 86564
2009-11-09 18:18:49 +00:00
640eb70bee
add zextOrTrunc and sextOrTrunc methods, that are similar to the ones in APInt
...
llvm-svn: 86549
2009-11-09 15:36:28 +00:00
ad95414c26
Work around assembler not recognizing #0.0 form immediate for vmcp
...
llvm-svn: 86548
2009-11-09 15:27:51 +00:00
7c16a89ebf
Make lib/Support/Debug.cpp SetCurrentDebugType implementation part of llvm namespace to match function declaration in Debug.h.
...
llvm-svn: 86544
2009-11-09 14:50:34 +00:00
8dd7c54a42
Fix PR5149.
...
http://llvm.org/bugs/show_bug.cgi?id=5149
llvm-svn: 86543
2009-11-09 14:27:49 +00:00
2156c22b3c
make this handle redefinition of malloc with different prototype correctly.
...
llvm-svn: 86525
2009-11-09 07:12:01 +00:00
39c07b2eef
if a 'with overflow' intrinsic just has the normal result used, simplify
...
it to a normal binop. Patch by Alastair Lynn, testcase by me.
llvm-svn: 86524
2009-11-09 07:07:56 +00:00
ad7c6124e7
Hide a couple of options.
...
llvm-svn: 86522
2009-11-09 06:49:37 +00:00
ce29331e10
80 col.
...
llvm-svn: 86521
2009-11-09 06:49:22 +00:00
feeabde753
fix PR5104: when printing a single character, return the result of
...
putchar in case there is an error.
llvm-svn: 86515
2009-11-09 04:57:04 +00:00
d1c4e75750
random tidy
...
llvm-svn: 86511
2009-11-09 04:18:23 +00:00
275dd8b0af
remove a redundant printout, LinkInArchive prints this as well.
...
llvm-svn: 86510
2009-11-09 04:15:28 +00:00
0685be3441
enhance PHI slicing to handle the case when a slicable PHI is begin
...
used by a chain of other PHIs.
llvm-svn: 86503
2009-11-09 01:38:00 +00:00
939ea35244
Small cleanups.
...
llvm-svn: 86499
2009-11-09 00:48:15 +00:00
73fc616838
Revert my previous patch to ABCD and fix things the right way. There are two problems addressed
...
here:
1) We need to avoid processing sigma nodes as phi nodes for constraint generation.
2) We need to generate constraints for comparisons against constants properly.
This includes our first working ABCD test!
llvm-svn: 86498
2009-11-09 00:44:44 +00:00
ea465e221e
comment typos pointed out by Duncan
...
llvm-svn: 86497
2009-11-09 00:41:49 +00:00
d7cf55cd0e
Use Unified Assembly Syntax for the ARM backend.
...
llvm-svn: 86494
2009-11-09 00:11:35 +00:00
058088f219
Fix an issue where the ordering of blocks within a function could lead to different constraint
...
graphs being produced. The cause was that we were incorrectly marking sigma instructions as
processed after handling the sigma-specific constraints for them, potentially neglecting to
process them as normal instructions as well.
Unfortunately, the testcase that inspired this still doesn't work because of a bug in the solver,
which is next on the list to debug.
llvm-svn: 86486
2009-11-08 22:36:55 +00:00
2299d4b6d8
Teach an instcombine to not pull trunc instructions through PHI nodes
...
when both the source and dest are illegal types, since it would cause
the phi to grow (for example, we shouldn't transform test14b's phi to
a phi on i320). This fixes an infinite loop on i686 bootstrap with
phi slicing turned on, so turn it back on.
llvm-svn: 86483
2009-11-08 21:20:06 +00:00
fec62f0ef5
Revert commit 81144, and add a comment. It caused bugpoint timeouts
...
not to work any more on linux.
llvm-svn: 86481
2009-11-08 20:55:48 +00:00
a837e4db6b
reapply r8644[3-5] with only the scary part
...
(SliceUpIllegalIntegerPHI) disabled.
llvm-svn: 86480
2009-11-08 19:23:30 +00:00
4c41373c56
Speculatively revert r8644[3-5], they seem to be leading to infinite loops in
...
llvm-gcc bootstrap.
llvm-svn: 86478
2009-11-08 17:52:47 +00:00
700c4ab3f9
Add and-not (bic) patterns. Based heavily on patch by Brian Lucas!
...
llvm-svn: 86471
2009-11-08 15:33:12 +00:00
e92c508764
Move OR patterns upper to all logical stuff. No functionality change.
...
llvm-svn: 86470
2009-11-08 15:32:44 +00:00
a404d61c8e
Some nice peephole patterns. Based on patch by Brian Lucas!
...
llvm-svn: 86469
2009-11-08 15:32:28 +00:00
fd9a893cab
Print tab before operand of jcc
...
llvm-svn: 86468
2009-11-08 15:32:11 +00:00
4ca8d3a6a6
Fix invalid operand updates & implement post-inc memory operands
...
llvm-svn: 86466
2009-11-08 14:27:38 +00:00
eb8692cff9
Throw an error when stack realignment stuff fails instead of silent
...
code miscompilation
llvm-svn: 86463
2009-11-08 12:58:40 +00:00
dc3fcfc0d0
Remove ByteswapSCANFResults, it is dead.
...
llvm-svn: 86458
2009-11-08 09:46:57 +00:00
09eeeaf08b
Moved some ManagedStatics out of the SlotIndexes header.
...
llvm-svn: 86446
2009-11-08 08:49:59 +00:00
c7a450b5b2
teach a couple of instcombine transformations involving PHIs to
...
not turn a PHI in a legal type into a PHI of an illegal type, and
add a new optimization that breaks up insane integer PHI nodes into
small pieces (PR3451).
llvm-svn: 86443
2009-11-08 08:21:13 +00:00
e0e20c2b90
We don't need to byteswap, the interpreter assumes the program is running
...
native anyways. This fixes a crash using %d and similar in a scanf statement.
llvm-svn: 86440
2009-11-08 05:45:04 +00:00
295f266370
Make TargetData::getStringRepresentation spit out native integer types,
...
this gives llvm-gcc generated modules the right data.
llvm-svn: 86435
2009-11-08 02:32:01 +00:00
439fb6fb0e
Fix the interpreter to not crash due to zeroext/signext
...
llvm-svn: 86428
2009-11-08 00:45:29 +00:00
a15c3b7124
Use aligned load/store instructions for spilling Q registers when we know the stack slot is 128 bit aligned
...
llvm-svn: 86425
2009-11-08 00:27:19 +00:00
fe864425cb
Refactor code.
...
llvm-svn: 86423
2009-11-08 00:15:23 +00:00
ec9491bda3
Fix MSVC warning ( | with bool and unsigned int).
...
llvm-svn: 86417
2009-11-07 23:51:55 +00:00
3a313df69b
x86 vector shuffle cleanup/fixes:
...
1. rename the movhp patfrag to movlhps, since thats what it actually matches
2. eliminate the bogus movhps load and store patterns, they were incorrect. The load transforms are already handled (correctly) by shufps/unpack.
3. revert a recent test change to its correct form.
llvm-svn: 86415
2009-11-07 23:17:15 +00:00
4e9f379554
80-column cleanup of file header comments
...
llvm-svn: 86408
2009-11-07 22:00:39 +00:00
d1d002a6fe
Support alignment specifier for NEON vld/vst instructions
...
llvm-svn: 86404
2009-11-07 21:25:39 +00:00
b9397262b7
Improve tail call elimination to handle the switch statement.
...
llvm-svn: 86403
2009-11-07 21:10:15 +00:00
8b5278a466
t2ldrpci_pic can be used for blockaddress as well.
...
llvm-svn: 86400
2009-11-07 19:40:04 +00:00
c77d24b792
make instcombine only rewrite a chain of computation
...
(eliminating some extends) if the new type of the
computation is legal or if both the source and dest
are illegal. This prevents instcombine from changing big
chains of computation into i64 on 32-bit targets for
example.
llvm-svn: 86398
2009-11-07 19:11:46 +00:00
8714348afd
indicate what the native integer types for the target are.
...
Please verify.
llvm-svn: 86397
2009-11-07 19:07:32 +00:00
431000da21
Revert r86359, it is breaking the self host on the
...
llvm-gcc-i386-darwin9 build bot.
llvm-svn: 86391
2009-11-07 17:59:32 +00:00
cf84ab5043
First try of the post-inc operands handling... Not fully worked, though :(
...
llvm-svn: 86386
2009-11-07 17:15:25 +00:00
d3c8319f48
Add some dummy support for post-incremented loads
...
llvm-svn: 86385
2009-11-07 17:15:06 +00:00
f93bb39b03
Add 8 bit libcalls and make use of them for msp430
...
llvm-svn: 86384
2009-11-07 17:14:39 +00:00
e61e0b9a74
Add few pseudo-source-values
...
llvm-svn: 86383
2009-11-07 17:13:57 +00:00
2a88785685
Initial support for addrmode handling. Tests by Brian Lucas!
...
llvm-svn: 86382
2009-11-07 17:13:35 +00:00
1bbc8d2a86
Some preliminary variable asmprinting
...
llvm-svn: 86381
2009-11-07 17:12:58 +00:00
3b7c712e9e
Use '.L' for global private prefix (as mspgcc)
...
llvm-svn: 86380
2009-11-07 17:12:38 +00:00
e04fa15cb3
Drop old asmprinter stuff
...
llvm-svn: 86379
2009-11-07 17:12:21 +00:00
226467d6a6
It turns out that the testcase in question uncovered subreg-handling bug.
...
Add assert in asmprinter to catch such cases and xfail the tests.
PR is to be filled.
llvm-svn: 86375
2009-11-07 15:20:32 +00:00
a381effe72
add the ability for TargetData to return information about legal integer
...
datatypes on a given CPU. This is intended to allow instcombine and other
transformations to avoid converting big sequences of operations to an
inconvenient width, and will help clean up after SRoA. See also "Adding
legal integer sizes to TargetData" on Feb 1, 2009 on llvmdev, and PR3451.
Comments welcome.
llvm-svn: 86370
2009-11-07 09:35:34 +00:00
91f9582fe1
more cleanup.
...
llvm-svn: 86369
2009-11-07 09:23:04 +00:00
d82510e109
add some missing #includes
...
llvm-svn: 86367
2009-11-07 09:20:54 +00:00
f819398067
rewrite TargetData to use StringRef/raw_ostream instead of thrashing std::strings.
...
llvm-svn: 86366
2009-11-07 09:13:23 +00:00
6b22952b03
prune #include / layering violation
...
llvm-svn: 86365
2009-11-07 09:07:01 +00:00
db5f24ce77
Make the need-stub variables accurate and consistent. In the case of
...
MachineRelocations, "stub" always refers to a far-call stub or a
load-a-faraway-global stub, so this patch adds "Far" to the term. (Other stubs
are used for lazy compilation and dlsym address replacement.) The variable was
also inconsistent between the positive and negative sense, and the positive
sense ("NeedStub") was more demanding than is accurate (since a nearby-enough
function can be called directly even if the platform often requires a stub).
Since the negative sense causes double-negatives, I switched to
"MayNeedFarStub" globally.
llvm-svn: 86363
2009-11-07 08:51:52 +00:00
bd05185ef1
Fix a couple of shuffle patterns to use movhlps instead
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of movhps as the constraint. Changes optimizations so
update testcases as appropriate as well.
llvm-svn: 86360
2009-11-07 08:45:53 +00:00
b6a3dd48f4
Teach dead store elimination that certain intrinsics write to memory just like
...
a store.
llvm-svn: 86359
2009-11-07 08:34:40 +00:00
5ff7f5672e
reapply 86289, 86278, 86270, 86267, 86266 & 86264 plus a fix
...
(making pred factoring only happen if threading is guaranteed
to be successful).
This now survives an X86-64 bootstrap of llvm-gcc.
llvm-svn: 86355
2009-11-07 08:05:03 +00:00
8e1d7222a7
Fix PR5421 by APInt'izing switch lowering.
...
llvm-svn: 86354
2009-11-07 07:50:34 +00:00
9b669b3c4f
Oops, FunctionContainsEscapingAllocas is really used to mean two different
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things. Back out part of r86349 for a moment.
llvm-svn: 86353
2009-11-07 07:42:38 +00:00
5091272fdf
Dust off tail recursion elimination. Fix a fixme by applying CaptureTracking
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and add a .ll to demo the new capability.
llvm-svn: 86349
2009-11-07 07:10:01 +00:00
0fa9474836
llvmc: Add a '-time' option.
...
llvm-svn: 86348
2009-11-07 06:33:58 +00:00
358607dfa3
Trailing whitespace.
...
llvm-svn: 86347
2009-11-07 06:33:12 +00:00
bc247dce4d
Update some globals to use ManagedStatic.
...
llvm-svn: 86342
2009-11-07 05:50:28 +00:00
fc032ced22
Fix memoizing of CvtRndSatSDNode
...
llvm-svn: 86340
2009-11-07 04:46:25 +00:00
5321dd8823
Fixed Overload table bug noticed by Jakob
...
llvm-svn: 86332
2009-11-07 04:07:33 +00:00
a8e8a7c976
Refactor code. Fix a potential missing check. Teach isIdentical() about tLDRpci_pic.
...
llvm-svn: 86330
2009-11-07 04:04:34 +00:00
7ff831962a
- Add TargetInstrInfo::isIdentical(). It's similar to MachineInstr::isIdentical
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except it doesn't care if the definitions' virtual registers differ. This is
used by machine LICM and other MI passes to perform CSE.
- Teach Thumb2InstrInfo::isIdentical() to check two t2LDRpci_pic are identical.
Since pc relative constantpool entries are always different, this requires it
it check if the values can actually the same.
llvm-svn: 86328
2009-11-07 03:52:02 +00:00
50dddc8b07
Update CMake file.
...
llvm-svn: 86325
2009-11-07 03:26:59 +00:00
07119737aa
Add code to check at SelectionDAGISel::LowerArguments time to see if return values can be lowered to registers. Coming soon, code to perform sret-demotion if return values cannot be lowered to registers
...
llvm-svn: 86324
2009-11-07 02:11:54 +00:00
4141d8ee92
Fix inverted conflict test in -early-coalesce.
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A non-identity copy cannot be coalesced when the phi join destination register
is live at the copy site.
Also verify the condition that the PHI join source register is only used in
the PHI join. Otherwise the coalescing is invalid.
llvm-svn: 86322
2009-11-07 01:58:40 +00:00
3a42e7ac65
Revert following patches to fix llvmgcc bootstrap.
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86289, 86278, 86270, 86267, 86266 & 86264
Chris, please take a look.
llvm-svn: 86321
2009-11-07 01:32:59 +00:00
3467dcb12d
My previous patch (r84124) for setting the encoding bits 4 and 7 of DPSoRegFrm
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was wrong and too aggressive in the sense that DPSoRegFrm includes both constant
shifts (with Inst{4} = 0) and register controlled shifts (with Inst{4} = 1 and
Inst{7} = 0). The 'rr' fragment of the multiclass definitions actually means
register/register with no shift, see A8-11.
llvm-svn: 86319
2009-11-07 00:54:36 +00:00
bde558c536
- new SROA mallocs should have the mallocs running-or'ed, not the malloc's bitcast
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- fix ProcessInternalGlobal() debug output
llvm-svn: 86317
2009-11-07 00:41:19 +00:00
e04ed0c68f
Fit in 80 columns
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llvm-svn: 86316
2009-11-07 00:36:50 +00:00
8f77e948e5
Avoid "ambiguous 'else'" warning from gcc.
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llvm-svn: 86314
2009-11-07 00:26:47 +00:00
f3db915294
Re-commit r86077 now that r86290 fixes the 179.art and 175.vpr ARM regressions.
...
Here is the original commit message:
This commit updates malloc optimizations to operate on malloc calls that have constant int size arguments.
Update CreateMalloc so that its callers specify the size to allocate:
MallocInst-autoupgrade users use non-TargetData-computed allocation sizes.
Optimization uses use TargetData to compute the allocation size.
Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays.
Extend getMallocType() to support malloc calls that have non-bitcast uses.
Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses. The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly.
Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses. The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use.
Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use.
Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes.
llvm-svn: 86311
2009-11-07 00:16:28 +00:00
79d70e3e65
80-columns
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llvm-svn: 86310
2009-11-07 00:13:30 +00:00
ba78dcd90d
Give the JITResolver a direct pointer to its JITEmitter, and use that instead
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of going through the global TheJIT variable. This makes it easier to use
features of JITEmitter that aren't in JITCodeEmitter for fixing PR5201.
llvm-svn: 86305
2009-11-07 00:00:10 +00:00
207b246650
- Add pseudo instructions tLDRpci_pic and t2LDRpci_pic which does a pc-relative
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load of a GV from constantpool and then add pc. It allows the code sequence to
be rematerializable so it would be hoisted by machine licm.
- Add a late pass to break these pseudo instructions into a number of real
instructions. Also move the code in Thumb2 IT pass that breaks up t2MOVi32imm
to this pass. This is done before post regalloc scheduling to allow the
scheduler to proper schedule these instructions. It also allow them to be
if-converted and shrunk by later passes.
llvm-svn: 86304
2009-11-06 23:52:48 +00:00
9df3acf486
Honour subreg machine operands during asmprinting
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llvm-svn: 86303
2009-11-06 23:45:15 +00:00
d95ccd6c4d
Print VMOV (immediate) operands as hexadecimal values. Apple's assembler
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will not accept negative values for these. LLVM's default operand printing
sign extends values, so that valid unsigned values appear as negative
immediates. Print all VMOV immediate operands as hex values to resolve this.
Radar 7372576.
llvm-svn: 86301
2009-11-06 23:33:28 +00:00
eb690feaef
Fix a bug where we'd call SplitBlockPredecessors with a pred in the
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set only once even if it has multiple edges to BB.
llvm-svn: 86299
2009-11-06 23:19:58 +00:00
b29e155c53
Fix comment typos.
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llvm-svn: 86295
2009-11-06 22:38:38 +00:00
408aa56fb5
Remove ARMPCLabelIndex from ARMISelLowering. Use ARMFunctionInfo::createConstPoolEntryUId() instead.
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llvm-svn: 86294
2009-11-06 22:24:13 +00:00
ce99780980
CallInst::CreateMalloc() and CallInst::CreateFree() need to create calls with correct calling convention
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llvm-svn: 86290
2009-11-06 21:43:21 +00:00
a70917b2f4
Remove function left over from other jump threading cleanup.
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llvm-svn: 86289
2009-11-06 21:24:57 +00:00
a8b9ce3f07
Fix a problem discovered on self host.
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llvm-svn: 86278
2009-11-06 19:21:48 +00:00
d91a7960bf
remove more code subsumed by r86264
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llvm-svn: 86270
2009-11-06 18:24:32 +00:00
33e0c99d67
Tolerate invalid derived type.
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llvm-svn: 86269
2009-11-06 18:24:05 +00:00
899ef22acb
eliminate some more code subsumed by r86264
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llvm-svn: 86267
2009-11-06 18:22:54 +00:00
2f6184f6aa
remove now redundant code, r86264 handles this case.
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llvm-svn: 86266
2009-11-06 18:20:58 +00:00
68d2417e05
Extend jump threading to support much more general threading
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predicates. This allows us to jump thread things like:
_ZN12StringSwitchI5ColorE4CaseILj7EEERS1_RAT__KcRKS0_.exit119:
%tmp1.i24166 = phi i8 [ 1, %bb5.i117 ], [ %tmp1.i24165, %_Z....exit ], [ %tmp1.i24165, %bb4.i114 ]
%toBoolnot.i87 = icmp eq i8 %tmp1.i24166, 0 ; <i1> [#uses=1]
%tmp4.i90 = icmp eq i32 %tmp2.i, 6 ; <i1> [#uses=1]
%or.cond173 = and i1 %toBoolnot.i87, %tmp4.i90 ; <i1> [#uses=1]
br i1 %or.cond173, label %bb4.i96, label %_ZN12...
Where it is "obvious" that when coming from %bb5.i117 that the 'and' is always
false. This triggers a surprisingly high number of times in the testsuite,
and gets us closer to generating good code for doug's strswitch testcase.
This also make a bunch of other code in jump threading redundant, I'll rip
out in the next patch. This survived an enable-checking llvm-gcc bootstrap.
llvm-svn: 86264
2009-11-06 18:15:14 +00:00
0080ee2d91
Use WriteAsOperand to print GlobalAddress MachineOperands. This
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prints them with the leading '@'.
llvm-svn: 86261
2009-11-06 18:03:10 +00:00
cc11371b77
Do not bother to emit debug info for nameless global variable.
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llvm-svn: 86259
2009-11-06 17:58:12 +00:00
ad36e8aceb
Pass StringRef by value.
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llvm-svn: 86251
2009-11-06 10:58:06 +00:00
8c12bb8cd7
remove some more Context arguments.
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llvm-svn: 86235
2009-11-06 05:59:53 +00:00
46b5c642b9
remove a bunch of extraneous LLVMContext arguments
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from various APIs, addressing PR5325.
llvm-svn: 86231
2009-11-06 04:27:31 +00:00
b9f5899779
Revert r86077 because it caused crashes in 179.art and 175.vpr on ARM
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llvm-svn: 86213
2009-11-06 01:33:24 +00:00
06ce6506d2
Do not try to emit debug info entry for dead global variable.
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llvm-svn: 86212
2009-11-06 01:30:04 +00:00
ee8afcc59d
Factor out the printing of the leading tab into printInlineAsm.
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llvm-svn: 86199
2009-11-06 00:04:54 +00:00
006f9353e1
Use SUBREG_TO_REG instead of INSERT_SUBREG to model x86-64's
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implicit zero-extend.
llvm-svn: 86196
2009-11-05 23:53:08 +00:00
a1bf0c0acc
Teach LSR to avoid calling SplitCriticalEdge on edges with indirectbr.
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llvm-svn: 86193
2009-11-05 23:34:59 +00:00
d53b5cfe3f
Fix the label name generation for address-taken labels to avoid potential
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problems with name collisions.
llvm-svn: 86189
2009-11-05 23:14:35 +00:00
933c541270
Added support for renumbering existing index list elements. Removed some junk from the initial numbering code in runOnMachineFunction.
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llvm-svn: 86184
2009-11-05 22:20:57 +00:00
928068a886
Avoid calling getUniqueExitBlocks from within LoopSimplify, as it depends
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on loops having dedicated exits, which LoopSimplify can no longer always
guarantee.
llvm-svn: 86181
2009-11-05 21:48:32 +00:00
dca7ac335b
LoopDeletion depends on loops having dedicated exits.
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llvm-svn: 86180
2009-11-05 21:47:04 +00:00
1ef784db67
The introduction of indirectbr meant the introduction of
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unsplittable critical edges, which means the introduction of
loops which cannot be transformed to LoopSimplify form. Fix
LoopSimplify to avoid transforming such loops into invalid
code.
llvm-svn: 86176
2009-11-05 21:14:46 +00:00
a83ac2d9e7
Update various Loop optimization passes to cope with the possibility that
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LoopSimplify form may not be available.
llvm-svn: 86175
2009-11-05 21:11:53 +00:00
bed7cb6c1d
Fix bug in aggressive antidep breaking; liveness was not updated correctly for regions that do not have antidep candidates.
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llvm-svn: 86172
2009-11-05 21:06:09 +00:00
415c64ea3f
Teach LoopUnroll how to bail if LoopSimplify can't give it what it needs.
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llvm-svn: 86164
2009-11-05 19:44:06 +00:00
d9fa1c9c1e
Call getAnalysis<LoopInfo> the normal way, instead of asking passed-in
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LoopPassManager for it.
llvm-svn: 86163
2009-11-05 19:43:25 +00:00
2267f8aa72
Fix IVUsers to avoid assuming that the loop has a unique backedge.
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llvm-svn: 86161
2009-11-05 19:41:37 +00:00
885c46e387
Delete an unused member variable.
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llvm-svn: 86160
2009-11-05 19:33:15 +00:00
e3a1706e33
Factor out the predicate code for loopsimplify form exit blocks into
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a separate helper function.
llvm-svn: 86159
2009-11-05 19:21:41 +00:00
43bdc260d6
Avoid printing a redundant space in SDNode->dump().
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llvm-svn: 86151
2009-11-05 18:49:11 +00:00
b15f4a1cbd
Remove uninteresting and confusing debug output.
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llvm-svn: 86149
2009-11-05 18:47:09 +00:00
00c793822e
Add an assertion to catch indirectbr in SplitBlockPredecessors. This
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makes several optimization passes abort in cases where they're currently
silently miscompiling code.
Remove the indirectbr assertion from SplitEdge. Indirectbr is only
a problem for critical edges, and SplitEdge defers to SplitCriticalEdge
to handle those, and SplitCriticalEdge has its own assertion for
indirectbr.
llvm-svn: 86147
2009-11-05 18:25:44 +00:00
06c26d982e
add a note from PR5313
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llvm-svn: 86146
2009-11-05 18:19:19 +00:00
b971445ab7
Teach SimplifyLibCalls to fold memcmp calls with constant arguments.
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llvm-svn: 86141
2009-11-05 17:44:22 +00:00
3fcbb82151
Do map insert+find in one step. TODO -= 2.
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llvm-svn: 86133
2009-11-05 14:33:27 +00:00
9470ecdb2c
Path::createDirectoryOnDisk should ignore existing directories on win32 too.
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llvm-svn: 86132
2009-11-05 14:32:40 +00:00
1a58236c2b
Reintroduce support for overloading target intrinsics
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llvm-svn: 86114
2009-11-05 03:19:08 +00:00
542649463b
Replace std::map.at() with std::map[].
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llvm-svn: 86102
2009-11-05 01:45:50 +00:00
7d8878add2
Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies.
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llvm-svn: 86098
2009-11-05 01:19:35 +00:00
66549b2818
Now that code placement optimization pass is run for JIT, make sure it's before pre-emit passes.
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llvm-svn: 86092
2009-11-05 01:16:59 +00:00
ba52f03052
Use WeakVH while storing metadata in containers.
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This fixes PR5393.
llvm-svn: 86091
2009-11-05 01:13:02 +00:00
921152fe9d
Code refactoring.
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llvm-svn: 86085
2009-11-05 00:51:13 +00:00
28ba4f27d1
Correctly add chain dependencies around calls and unknown-side-effect instructions.
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llvm-svn: 86080
2009-11-05 00:16:44 +00:00
492ed30a32
Update CreateMalloc so that its callers specify the size to allocate:
...
MallocInst-autoupgrade users use non-TargetData-computed allocation sizes.
Optimization uses use TargetData to compute the allocation size.
Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays.
Extend getMallocType() to support malloc calls that have non-bitcast uses.
Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses. The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly.
Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses. The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use.
Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use.
Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes.
llvm-svn: 86077
2009-11-05 00:03:03 +00:00
f05d57283e
While calculating original type size for a derived type, handle type variants encoded as DIDerivedType appropriately.
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This improves bitfield support.
llvm-svn: 86073
2009-11-04 23:48:00 +00:00
31569240c6
Grammar.
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llvm-svn: 86068
2009-11-04 23:20:40 +00:00
a09062758b
improve DSE when TargetData is not around, based on work by
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Hans Wennborg!
llvm-svn: 86067
2009-11-04 23:20:12 +00:00
5833df9bde
Now that the memory leak from McCat/08-main has been fixed (86056), re-enable
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aggressive testing of dynamic stack alignment.
Note that this is off by default, and enabled for LLCBETA nightly results.
llvm-svn: 86064
2009-11-04 23:11:07 +00:00
2c7fd8f1db
If a function has no stack frame at all, dynamic realignment isn't necessary.
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llvm-svn: 86057
2009-11-04 22:41:51 +00:00
cc58cc1d56
dynamic stack realignment necessitates scanning the floating point callee-
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saved instructions even if no stack adjustment for those saves is needed.
llvm-svn: 86056
2009-11-04 22:41:00 +00:00
67f56f08c2
Fix DW_AT_data_member_location for bit-fields. It points to the location of annonymous field that covers respective field.
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llvm-svn: 86054
2009-11-04 22:06:12 +00:00
f84f7105f7
Add PowerPC codegen for indirect branches.
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llvm-svn: 86050
2009-11-04 21:31:18 +00:00
289b8a2bd9
Handle empty/tombstone keys for LiveIndex more cleanly. Check for index sanity when constructing index list entries.
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llvm-svn: 86049
2009-11-04 21:24:15 +00:00
d732f396a2
A value is only assigned to errno if NumRead equals -1, so do
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not reason based on errno if NumRead has a different value.
llvm-svn: 86046
2009-11-04 20:50:23 +00:00
9196f0c0e8
Add some options to disable various code gen optimizations.
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llvm-svn: 86044
2009-11-04 19:57:50 +00:00
5d3fe2fc77
Array element size does not match array size but array is not a bitfield.
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llvm-svn: 86043
2009-11-04 19:37:40 +00:00
c7cfc94bcc
Print out an informative comment for KILL instructions.
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The KILL pseudo-instruction may survive to the asm printer pass, just like the IMPLICIT_DEF. Print the KILL as a comment instead of just leaving a blank line in the output.
With -asm-verbose=0, a blank line is printed, like IMPLICIT?DEF.
llvm-svn: 86041
2009-11-04 19:24:37 +00:00
762b56fa8c
Fix an iterator invalidation bug that happens when a hashtable
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resizes in IPSCCP. This fixes PR5394.
llvm-svn: 86036
2009-11-04 18:57:42 +00:00
95bdc5d899
RangeIsDefinedByCopyFromReg() should check for subreg_to_reg, insert_subreg,
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and extract_subreg as a "copy" that defines a valno.
Also fixes a typo. These two issues prevent a simple subreg coalescing from
happening before.
llvm-svn: 86022
2009-11-04 08:33:14 +00:00
cb3c64ee3c
move two functions up higher in the file. Delete a useless argument
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to EmitGEPOffset.
Implement some new transforms for optimizing
subtracts of two pointer to ints into the same vector. This happens
for C++ iterator idioms for example, stringmap takes a const char*
that points to the start and end of a string. Once inlined, we want
the pointer difference to turn back into a length.
This is rdar://7362831.
llvm-svn: 86021
2009-11-04 08:05:20 +00:00
c63943018f
The .n suffix must go after the predicate.
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llvm-svn: 86019
2009-11-04 07:38:48 +00:00
90790c7781
Fix CMake makefiles
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llvm-svn: 85994
2009-11-04 01:32:06 +00:00
3f1a92468a
Use ldr.n to workaround a darwin assembler bug.
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llvm-svn: 85980
2009-11-04 00:00:39 +00:00
05fb9637f6
The Indexes Patch.
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This introduces a new pass, SlotIndexes, which is responsible for numbering
instructions for register allocation (and other clients). SlotIndexes numbering
is designed to match the existing scheme, so this patch should not cause any
changes in the generated code.
For consistency, and to avoid naming confusion, LiveIndex has been renamed
SlotIndex.
The processImplicitDefs method of the LiveIntervals analysis has been moved
into its own pass so that it can be run prior to SlotIndexes. This was
necessary to match the existing numbering scheme.
llvm-svn: 85979
2009-11-03 23:52:08 +00:00
53a31ad3c1
Fix branch folding bug for indirect branches: for a block containing only
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an unconditional branch (possibly from tail merging), this code is
trying to redirect all of its predecessors to go directly to the branch
target, but that isn't feasible for indirect branches. The other
predecessors (that don't end with indirect branches) could theoretically
still be handled, but that is not easily done right now.
The AnalyzeBranch interface doesn't currently let us distinguish jump table
branches from indirect branches, and this code is currently handling
jump tables. To avoid punting on address-taken blocks, we would have to give
up handling jump tables. That seems like a bad tradeoff.
llvm-svn: 85975
2009-11-03 23:44:31 +00:00
156b8c7109
reimplement multiple return value handling in IPSCCP, making it
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more aggressive an correct. This survives building llvm in 64-bit
mode with optimizations and the built llvm passes make check.
llvm-svn: 85973
2009-11-03 23:40:48 +00:00
b376ce0169
Fix t2Int_eh_sjlj_setjmp. Immediate form of orr is a 32-bit instruction. So it should be 22 bytes instead of 20 bytes long.
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llvm-svn: 85965
2009-11-03 23:13:34 +00:00
0410bced1c
fconsts / fconstd immediate should be proceeded with #.
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llvm-svn: 85952
2009-11-03 21:59:33 +00:00
f42b5af549
Re-apply 85799. It turns out my code isn't buggy.
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llvm-svn: 85947
2009-11-03 21:40:02 +00:00
8501dbbe10
Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed.
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llvm-svn: 85939
2009-11-03 20:57:50 +00:00
2c427233d4
finish half thunk thought
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llvm-svn: 85937
2009-11-03 20:52:57 +00:00
3318858efd
Changes requested (avoid getFunction(), avoid Type creation via isVoidTy(), and avoid redundant isFreeCall cases) in feedback to r85176
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llvm-svn: 85936
2009-11-03 20:39:35 +00:00
a86f919763
<rdar://problem/7352605>. When building schedule graph use mayAlias information to avoid chaining loads/stores of spill slots with non-aliased memory ops.
...
llvm-svn: 85934
2009-11-03 20:15:00 +00:00
5cd73a3470
Changes (* location in pointer variables, avoiding include, and using APInt::getLimitedValue) based on feedback to r85814
...
llvm-svn: 85933
2009-11-03 20:02:35 +00:00
cde8de519d
fix an IPSCCP bug I introduced when I changed IPSCCP to start working on
...
functions that don't have local linkage. Basically, we need to be more
careful about propagating argument information to functions whose results
we aren't tracking. This fixes a miscompilation of
LLVMCConfigurationEmitter.cpp when built with an llvm-gcc that has ipsccp
enabled.
llvm-svn: 85923
2009-11-03 19:24:51 +00:00
4afa0838d7
Make this code more robust by not thinking we are making progress
...
if zero bytes were read.
llvm-svn: 85922
2009-11-03 19:10:22 +00:00
1cb5116292
Parse debug info attached with insertvalue and extractvalue instructions.
...
llvm-svn: 85921
2009-11-03 19:06:07 +00:00
76a4774a0d
Move subtarget check upper for NEON reg-reg fixup pass.
...
llvm-svn: 85914
2009-11-03 18:46:11 +00:00
ffa7c07352
Ignore unnamed variables.
...
llvm-svn: 85909
2009-11-03 18:30:27 +00:00
e1d5cd9f48
fix a subtle bug I introduced when refactoring SCCP. Testcase
...
to follow.
llvm-svn: 85903
2009-11-03 16:50:11 +00:00
5573971453
Eliminate some temporaries.
...
llvm-svn: 85896
2009-11-03 12:52:50 +00:00
31c2f4701b
Trim unnecessary include.
...
llvm-svn: 85878
2009-11-03 07:08:08 +00:00
064c5fef11
For Thumb indirect branches, use "mov pc, reg" which does not switch
...
between ARM/Thumb modes and does not require the low bit of the target
address to be set for Thumb.
llvm-svn: 85874
2009-11-03 06:29:56 +00:00
6235b19d7b
Fix a funky "declared with greater visibility than the type of its field"
...
warning from gcc by removing VISIBILITY_HIDDEN attributes.
llvm-svn: 85873
2009-11-03 06:29:36 +00:00
8d681f0471
Fix PR5367. QPR_8 is the super regclass of DPR_8 and SPR_8.
...
llvm-svn: 85871
2009-11-03 05:52:54 +00:00
23c009f125
Clean up copyRegToReg.
...
llvm-svn: 85870
2009-11-03 05:51:39 +00:00
9e9079371c
Add QPR_8 as a superreg class of SPR_8 and DPR_8.
...
llvm-svn: 85869
2009-11-03 05:50:57 +00:00
03d1bca60a
remove unneeded checks of isFreeCall
...
llvm-svn: 85866
2009-11-03 05:35:19 +00:00
e9dccd4934
remove a check of isFreeCall: the argument to free is already nocapture so the generic call code works fine.
...
llvm-svn: 85865
2009-11-03 05:34:51 +00:00
5a3832496a
remove a isFreeCall check: it is a callinst that can write to memory already.
...
llvm-svn: 85863
2009-11-03 05:33:46 +00:00
187cb4f493
Update CMake file.
...
llvm-svn: 85861
2009-11-03 04:14:12 +00:00
2124f0d43f
Alphabetize.
...
llvm-svn: 85859
2009-11-03 04:01:53 +00:00
fb14181b18
turn IPSCCP back on now that the iterator invalidation bug is fixed.
...
llvm-svn: 85858
2009-11-03 03:42:51 +00:00
d195f9e5c3
Turn neon reg-reg moves fixup code into separate pass. This should reduce the compile time.
...
llvm-svn: 85850
2009-11-03 01:04:26 +00:00
fbe0256b23
Revert r85049, it is causing PR5367
...
llvm-svn: 85847
2009-11-03 00:24:48 +00:00
b389f2a04d
Revert previous change to a comment. The BlockAddresses go in the
...
constant pool so they don't get wrapped separately.
llvm-svn: 85844
2009-11-03 00:02:05 +00:00
b70ef3c8c7
fix a nasty iterator invalidation bug from my conversion from
...
std::map to DenseMap, exposed on release llvm-gcc bootstrap.
llvm-svn: 85840
2009-11-02 23:25:39 +00:00
a8a58efc03
Revert 85799 for now. It might be breaking llvm-gcc driver.
...
llvm-svn: 85827
2009-11-02 21:49:14 +00:00
1c66e8a6b7
Put BlockAddresses into ARM constant pools.
...
llvm-svn: 85824
2009-11-02 20:59:23 +00:00
d9dfc2e752
Fix ARMAsmParser::ParseMemoryOffsetReg() where the parameter OffsetRegNum should
...
have been passed as a reference.
llvm-svn: 85823
2009-11-02 20:14:39 +00:00
a15cc59dcb
revert r8579[56], which are causing unhappiness in buildbot land.
...
llvm-svn: 85818
2009-11-02 19:31:10 +00:00
df022f1449
Set bit instead of calling pow() to compute 2 << n
...
llvm-svn: 85814
2009-11-02 18:51:28 +00:00
a38a4dfea7
typo
...
llvm-svn: 85812
2009-11-02 18:28:45 +00:00
a3d794ebbb
disable IPSCCP support for multiple return values, it is buggy, so just
...
disable it until I can fix it.
llvm-svn: 85810
2009-11-02 18:22:51 +00:00
5ac6f244fd
Fix schedule model for BFC.
...
llvm-svn: 85809
2009-11-02 17:28:36 +00:00
4c00a524eb
Hyphenate some comments.
...
llvm-svn: 85808
2009-11-02 17:10:37 +00:00
00822aabf6
Chain dependencies used to enforce memory order should have latency of 0 (except for true dependency of Store followed by aliased Load... we estimate that case with a single cycle of latency assuming the hardware will bypass)
...
llvm-svn: 85807
2009-11-02 17:06:28 +00:00
433ab09ca3
Add support for BlockAddress values in ARM constant pools.
...
llvm-svn: 85806
2009-11-02 16:59:06 +00:00
e90a4aa703
Prune unnecessary include.
...
llvm-svn: 85805
2009-11-02 16:58:31 +00:00
2729543984
Initilize the machine LICM CSE map upon the first time an instruction is hoisted to
...
the loop preheader. Add instructions which are already in the preheader block that
may be common expressions of those that are hoisted out. These does get a few more
instructions CSE'ed.
llvm-svn: 85799
2009-11-02 08:09:49 +00:00
115cfc07d5
These are done / no longer care.
...
llvm-svn: 85798
2009-11-02 07:58:25 +00:00
f6f1b37f9f
Add an entry.
...
llvm-svn: 85797
2009-11-02 07:51:19 +00:00
9d49f0c858
improve IPSCCP to be able to propagate the result of "!mayBeOverridden"
...
function to calls of that function, regardless of whether it has local
linkage or has its address taken. Not escaping should only affect
whether we make an aggressive assumption about the arguments to a
function, not whether we can track the result of it.
llvm-svn: 85795
2009-11-02 07:33:59 +00:00
47837c5182
don't mark the arguments of prototype overdefined, they will never be queried.
...
llvm-svn: 85793
2009-11-02 06:34:04 +00:00
5503328332
restore some code I removed in r85788, refactor it into
...
a shared place instead of duplicating it 4 times.
llvm-svn: 85792
2009-11-02 06:28:16 +00:00
4910b656b2
remove some confused code that dates from when we had
...
"multiple return values" but not "first class aggregates"
llvm-svn: 85791
2009-11-02 06:17:06 +00:00
809aee2f40
avoid redundant lookups in BBExecutable, and make it a SmallPtrSet.
...
llvm-svn: 85790
2009-11-02 06:11:23 +00:00
e77c9aa04a
Use the libanalysis 'ConstantFoldLoadFromConstPtr' function
...
instead of reinventing SCCP-specific logic. This gives us
new powers.
llvm-svn: 85789
2009-11-02 06:06:14 +00:00
f548403989
switch the main 'ValueState' map from being an std::map to being
...
a DenseMap. Doing this required being aware of subtle iterator
invalidation issues, but it provides a big speedup. In a
release-asserts build, this sped up optimizing 403.gcc from
1.34s -> 0.79s (IPSCCP) and 1.11s -> 0.44s (SCCP).
This commit also conflates in a bunch of general cleanups, sorry.
llvm-svn: 85788
2009-11-02 05:55:40 +00:00
1708b06c0e
Unbreak ARMBaseRegisterInfo::copyRegToReg.
...
llvm-svn: 85787
2009-11-02 04:44:55 +00:00
4e849162ef
fix a bug exposed by moving SRoA earlier which caused a crash building kc++
...
llvm-svn: 85786
2009-11-02 04:37:17 +00:00
e82b087ae6
only IPSCCP incoming arguments if the function is executable, this fixes
...
an assertion on the buildbot.
llvm-svn: 85784
2009-11-02 03:25:55 +00:00
9e97fbe114
add a new ValueState::getConstantInt() helper, use it to
...
simplify some code.
llvm-svn: 85783
2009-11-02 03:21:36 +00:00
2c7457c0f1
Fix malloc.h is deprecated warning on DragonFly BSD.
...
llvm-svn: 85782
2009-11-02 03:20:57 +00:00
0cc7777ce8
Fix for warning seen on DF-BSD, Victor, please fix this to use a shift instead of pow()
...
llvm-svn: 85781
2009-11-02 03:14:31 +00:00
7ccf1a6df6
tidy up some more: remove some extraneous inline specifiers, return harder.
...
llvm-svn: 85780
2009-11-02 03:03:42 +00:00
78eedecade
Apply fix for PR5135, Credit to Andreas Neustifter.
...
llvm-svn: 85779
2009-11-02 02:55:39 +00:00
b5a13d4c90
eliminate the SCCPSolver::getValueMapping method.
...
llvm-svn: 85778
2009-11-02 02:54:24 +00:00
c49ae9912a
fix failures introduced in r85774
...
llvm-svn: 85777
2009-11-02 02:48:17 +00:00
e405ed9651
factor duplicated code into a new DeleteInstructionInBlock
...
function, eliminate temporary (and pointless) smallvector.
llvm-svn: 85776
2009-11-02 02:47:51 +00:00
a3c39d394d
Chris used to use '...' instead of proper grammar.
...
llvm-svn: 85775
2009-11-02 02:33:50 +00:00
6df5cec72f
remove some extraneous llvmcontext stuff.
...
llvm-svn: 85774
2009-11-02 02:30:06 +00:00
efdd2bbce6
change LatticeVal to use PointerIntPair to save some space.
...
llvm-svn: 85773
2009-11-02 02:20:32 +00:00
3cd6a61b27
fix instcombine to only do store sinking when the alignments
...
of the two loads agree. Propagate that onto the new store.
llvm-svn: 85772
2009-11-02 02:06:37 +00:00
4d23754b14
Handle splats of undefs properly. This includes the testcase for PR5364 as well.
...
llvm-svn: 85767
2009-11-02 00:12:06 +00:00
0f38d989bd
Do not infer the target type for COPY_TO_REGCLASS from dest regclass, this won't work if it can contain several types. Require explicit result type for the node for now. This fixes PR5364.
...
PS: It seems that blackfin usage of copy_to_regclass is completely bogus!
llvm-svn: 85766
2009-11-02 00:11:39 +00:00
8cce1eb6aa
64-bit FP loads & stores operate on both NEON and VFP pipelines.
...
llvm-svn: 85765
2009-11-02 00:11:06 +00:00
14635da94b
Use NEON reg-reg moves, where profitable. This reduces "domain-cross" stalls, when we used to mix vfp and neon code (the former were used for reg-reg moves)
...
llvm-svn: 85764
2009-11-02 00:10:38 +00:00
ea68c7c9a8
Add PseudoSourceValue::mayAlias. It returns true if the object can ever alias any LLVM IR value.
...
llvm-svn: 85762
2009-11-01 23:50:04 +00:00
1a4492be97
Fix a couple more places where we are creating ld / st instructions without memoperands.
...
llvm-svn: 85746
2009-11-01 22:04:35 +00:00
43219997b6
Make use of imm12 version of Thumb2 ldr / str instructions more aggressively.
...
llvm-svn: 85743
2009-11-01 21:12:51 +00:00
328ef89bd1
when merging two loads, make sure to take the min of their alignment,
...
not the max. This didn't matter until the previous patch because
instcombine would refuse to sink loads with differenting alignments.
llvm-svn: 85738
2009-11-01 20:07:07 +00:00
2a249e267a
split load sinking out to its own function, like gep sinking.
...
llvm-svn: 85737
2009-11-01 20:04:24 +00:00
0b40a8bc0e
fix a bug noticed by inspection: when instcombine sinks loads through
...
phis, it didn't preserve the alignment of the load. This is a missed
optimization of the alignment is high and a miscompilation when the
alignment is low.
llvm-svn: 85736
2009-11-01 19:50:13 +00:00
f25d301311
Add a missing closing parenthesis, and tweak to fit in 80
...
columns.
llvm-svn: 85732
2009-11-01 19:12:43 +00:00
b5d9c8c708
cleanups, switch GlobalDCE to SmallPtrSet instead of std::set
...
llvm-svn: 85730
2009-11-01 19:03:42 +00:00
37536b90e1
remove a bunch of locking from LLVMContextImpl. Since only one thread
...
can be banging on a context at a time, this isn't needed. Owen, please
review.
llvm-svn: 85728
2009-11-01 18:42:03 +00:00
249f96e339
improve comment.
...
llvm-svn: 85725
2009-11-01 18:17:37 +00:00
1756673f58
add a comment about why we don't allow inlining indbr.
...
llvm-svn: 85724
2009-11-01 18:16:30 +00:00
253bc77513
the verifier shouldn't modify the IR.
...
llvm-svn: 85722
2009-11-01 18:11:50 +00:00
291f6145b8
Reverting 85714, 85715, 85716, which are breaking the build
...
llvm-svn: 85717
2009-11-01 16:42:53 +00:00
2b12b95d5d
Add a function to Passes.h to allow clients to create instances
...
of the ScalarEvolution pass without needing to #include ScalarEvolution.h.
llvm-svn: 85716
2009-11-01 15:28:36 +00:00
b49c889d53
Don't #include Pass.h from CallGraph.h.
...
llvm-svn: 85715
2009-11-01 15:23:35 +00:00
576ac96367
Remove the #include of Pass.h from PassManager.h. This breaks a significant
...
#include dependency, as frontends commonly pull in PassManager.h.
llvm-svn: 85714
2009-11-01 15:20:19 +00:00
1a8b80ed5a
teach ipsccp and ipconstprop that a blockaddress doesn't 'take the address' of a function
...
in a way that should prevent ip constprop. This allows clang/test/CodeGen/indirect-goto.c
to pass with the new indirect goto lowering.
llvm-svn: 85709
2009-11-01 06:11:53 +00:00
a1dc101f66
change llvm::MergeBlockIntoPredecessor to not merge two blocks BB1->BB2
...
when BB2 has its address taken. Since it ends up doing BB2->rauw(BB1),
this can cause the address of the entry block to be taken. Since it is
generally undesirable to nuke blocks whose address is taken, even when
we can, just unconditionally stop this xform.
llvm-svn: 85708
2009-11-01 04:57:33 +00:00
746139b736
strengthen an assumption: RevectorBlockTo knows that PredBB
...
ended in an uncond branch because the pass requires BreakCriticalEdges.
However, BCE doesn't eliminate critical adges from indbrs.
llvm-svn: 85707
2009-11-01 04:23:20 +00:00
274717419c
fix an issue where the verifier would reject a function whose entry
...
block had its address taken even if the blockaddress was dead.
llvm-svn: 85706
2009-11-01 04:08:01 +00:00
7a8db3a41a
if CostMetrics says to never duplicate some code, don't unswitch a loop.
...
This prevents unswitching from duplicating indbr's.
llvm-svn: 85705
2009-11-01 03:42:55 +00:00
54a4b84012
constant fold indirectbr(blockaddress(%bb)) -> br label %bb.
...
llvm-svn: 85704
2009-11-01 03:40:38 +00:00
50ba5c3dc2
improve x86 codegen support for blockaddress. We now compile
...
the testcase into:
_test1: ## @test1
## BB#0: ## %entry
leaq L_test1_bb6(%rip), %rax
jmpq *%rax
L_test1_bb: ## Address Taken
LBB1_1: ## %bb
movb $1, %al
ret
L_test1_bb6: ## Address Taken
LBB1_2: ## %bb6
movb $2, %al
ret
Note, it is very very strange that BlockAddressSDNode doesn't carry
around TargetFlags. Dan, please fix this.
llvm-svn: 85703
2009-11-01 03:25:03 +00:00
4578f8ea07
pull check for return inst out of loop, never inline a callee that contains
...
an indirectbr.
llvm-svn: 85702
2009-11-01 03:07:53 +00:00
c559a9f686
Fix BlockAddress::replaceUsesOfWithOnConstant to correctly
...
maintain the block use count in SubclassData.
llvm-svn: 85701
2009-11-01 03:03:03 +00:00
140a754ab2
implement linker support for BlockAddress.
...
llvm-svn: 85700
2009-11-01 02:46:39 +00:00
aa99c94e2a
Revert 85678/85680. The decision is to stay with the current form of
...
indirectbr, thus we don't need "blockaddr(@func, null)". Eliminate it
for simplicity.
llvm-svn: 85699
2009-11-01 01:27:45 +00:00
6f29ad9170
Use cbz and cbnz instructions.
...
llvm-svn: 85698
2009-10-31 23:46:45 +00:00
5cba8de2c8
vml[as].f32 cause stalls in following advanced SIMD instructions. Avoid using
...
them for scalar floating point operations for now.
llvm-svn: 85697
2009-10-31 22:57:36 +00:00
a546dcf418
Make sure PRE doesn't split crit edges from indirectbr.
...
llvm-svn: 85692
2009-10-31 22:11:15 +00:00
c872b09676
llvm::SplitEdge should refuse to split an edge from an indirectbr.
...
Fix CodeGenPrepare to not try to split edges from indirectbr.
llvm-svn: 85690
2009-10-31 22:04:43 +00:00
ba364b0a9a
update the comment above llvm::SplitCriticalEdge, and make
...
it abort on IndirectBrInst as describe in the comment.
llvm-svn: 85688
2009-10-31 21:51:10 +00:00
8fe6fd702d
Expand 64-bit logical shift right inline
...
llvm-svn: 85687
2009-10-31 21:42:19 +00:00
624fcb286e
Expand 64-bit arithmetic shift right inline
...
llvm-svn: 85685
2009-10-31 21:00:56 +00:00
ae6bb61594
Fix a missing newline in the dwarf output code.
...
llvm-svn: 85684
2009-10-31 20:59:09 +00:00
34341e69c4
Make -print-machineinstrs more readable.
...
- Be consistent when referring to MachineBasicBlocks: BB#0.
- Be consistent when referring to virtual registers: %reg1024.
- Be consistent when referring to unknown physical registers: %physreg10.
- Be consistent when referring to known physical registers: %RAX
- Be consistent when referring to register 0: %reg0
- Be consistent when printing alignments: align=16
- Print jump table contents.
- Don't print host addresses, in general.
- and various other cleanups.
llvm-svn: 85682
2009-10-31 20:19:03 +00:00
18dc1c5c9e
Factor out more code into addCommonCodeGenPasses. The JIT wasn't
...
previously running CodePlacementOpt. Also print headers before
each dump in -print-machineinstrs mode, so that it's clear which
dump is which.
llvm-svn: 85681
2009-10-31 20:17:39 +00:00
3c89c53f35
adjust a couple xforms to work with null bb's in BlockAddress.
...
llvm-svn: 85680
2009-10-31 20:13:24 +00:00
b2c0e243c5
Make blockaddress(@func, null) be valid, and make 'deleting a basic
...
block with a blockaddress still referring to it' replace the invalid
blockaddress with a new blockaddress(@func, null) instead of a
inttoptr(1).
This changes the bitcode encoding format, and still needs codegen
support (this should produce a non-zero value, referring to the entry
block of the function would also be quite reasonable).
llvm-svn: 85678
2009-10-31 20:08:37 +00:00
5d994048dd
Expand 64 bit left shift inline rather than using the libcall. For now, this
...
is unconditional. Making it still use the libcall when optimizing for size
would be a good adjustment.
llvm-svn: 85675
2009-10-31 19:38:01 +00:00
a742b8f94f
add a comment.
...
llvm-svn: 85671
2009-10-31 17:48:31 +00:00
2d02ff8cbb
Revert r85667. LoopUnroll currently can't call utility functions which
...
auto-update the DominatorTree because it doesn't keep the DominatorTree
current while it works.
llvm-svn: 85670
2009-10-31 17:33:01 +00:00
144694bcb7
Remove redundant code.
...
llvm-svn: 85668
2009-10-31 16:16:41 +00:00
041e2dbad1
Merge the enhancements from LoopUnroll's FoldBlockIntoPredecessor into
...
MergeBlockIntoPredecessor. This makes SimplifyCFG slightly more aggressive,
and makes it unnecessary for LoopUnroll to have its own copy of this code.
llvm-svn: 85667
2009-10-31 16:08:00 +00:00
880c92ac1c
Rename forgetLoopBackedgeTakenCount to forgetLoop, because it
...
clears out more information than just the stored backedge taken count.
llvm-svn: 85664
2009-10-31 15:04:55 +00:00
969e83a4ff
Replace LoopUnrollPass.cpp's custom code-size estimation code using
...
the new common CodeMetrics code.
llvm-svn: 85663
2009-10-31 14:54:17 +00:00
fa8969f70e
Simplify this code.
...
llvm-svn: 85662
2009-10-31 14:46:50 +00:00
af94015c18
Remove an unnecessary #include.
...
llvm-svn: 85661
2009-10-31 14:39:43 +00:00
f35b6640f6
Update CMakeLists for recent renames.
...
llvm-svn: 85660
2009-10-31 14:38:25 +00:00
f70e76c435
Rename UnrollLoop.cpp to LoopUnroll.cpp, and LoopUnroll.cpp to
...
LoopUnrollPass.cpp, for consistency with other passes which are
similarly split.
llvm-svn: 85659
2009-10-31 14:37:31 +00:00
fb7f0e57b6
Remove CodeGenLICM. It's largely obsoleted by MachineLICM's new ability
...
to unfold loop-invariant loads.
llvm-svn: 85657
2009-10-31 14:35:41 +00:00
ac45c9171d
Make ScalarEvolutionAliasAnalysis slightly more aggressive, by making an
...
underlying alias call even for non-identified-object values.
llvm-svn: 85656
2009-10-31 14:32:25 +00:00
930aa9d3d2
Reapply r85634, with the bug fixed.
...
llvm-svn: 85655
2009-10-31 14:22:52 +00:00
ba8735d25a
When discarding SrcValue information, discard all of it so that code
...
that uses this information knows to behave conservatively.
llvm-svn: 85654
2009-10-31 14:14:04 +00:00
97abba5b6f
Fix 80-column violation.
...
llvm-svn: 85653
2009-10-31 14:12:53 +00:00
a0ca9e944f
Fix warning with gcc-4.0 and signed/unsigned.
...
llvm-svn: 85648
2009-10-31 09:24:35 +00:00
cdbb70c065
It's safe to remat t2LDRpci; Add PseudoSourceValue to load / store's to enable more machine licm. More changes coming.
...
llvm-svn: 85643
2009-10-31 03:39:36 +00:00
c16d8f2054
Revert 85634. It's breaking consumer-typeset (and others).
...
llvm-svn: 85641
2009-10-31 01:28:06 +00:00
060ee82dab
Add assertion checks here to turn silent miscompiles into aborts.
...
llvm-svn: 85639
2009-10-30 23:59:06 +00:00
d814e32e57
Don't mark registers dead here when processing nodes with MVT::Flag
...
results. This works around a problem affecting targets which rely on
MVT::Flag to handle physical register defs.
llvm-svn: 85638
2009-10-30 23:57:47 +00:00
7f7d97eb73
Add a comment about a missed opportunity.
...
llvm-svn: 85635
2009-10-30 23:15:43 +00:00
5bec30ca5d
Optimize around the fact that pred_iterator is slow: instead of sorting
...
PHI operands by the predecessor order, sort them by the order used by the
first PHI in the block. This is still suffucient to expose duplicates.
llvm-svn: 85634
2009-10-30 23:15:21 +00:00
8be42bd09f
Updates to the ARM target assembler for llvm-mc per review comments from
...
Daniel Dunbar.
- Reordered the fields in the ARMOperand Mem struct to make the struct smaller.
Making bool's into 1 bit fields and put the MCExpr* fields adjacent to each
other.
- Fixed a number of places in ARMAsmParser.cpp so they have doxygen comments.
- Change the name of ARMAsmParser::ParseRegister() to MaybeParseRegister and
added the bool ParseWriteBack parameter.
- Changed ARMAsmParser::ParseMemory() to call MaybeParseRegister().
- Added ARMAsmParser::ParseMemoryOffsetReg to factor out parsing the offset of a
memory operand. And use it for both parsing both preindexed and post indexing
addressing forms in ARMAsmParser::ParseMemory.
- Changed the first argument to ParseShift() to a reference.
- Changed ParseShift() to check for Rrx first and return to reduce nesting.
llvm-svn: 85632
2009-10-30 22:55:57 +00:00
072b31a0bf
If string field is empty then return NULL.
...
llvm-svn: 85630
2009-10-30 22:52:47 +00:00
dd5d035302
if basic blocks are destroyed while there are *just* BlockAddress' hanging
...
around, then zap them. This is analogous to dangling constantexprs hanging
off functions.
llvm-svn: 85627
2009-10-30 22:39:36 +00:00
1a95106602
Teach SimplifyCFG how to eliminate duplicate PHI nodes within a block.
...
This reduces codesize on a variety of codes by 1-2% on x86-64. It also
helps clean up after SSAUpdater.
llvm-svn: 85626
2009-10-30 22:39:04 +00:00
74eb5d71a3
make hasAddressTaken() constant time by storing a refcount in BB's subclass data.
...
llvm-svn: 85625
2009-10-30 22:33:29 +00:00
c7415bf536
Add a note about Robert Muth's alternate jump table implementation.
...
llvm-svn: 85624
2009-10-30 22:22:46 +00:00
13e41edc71
Sort the incoming values in PHI nodes to match the predecessor order.
...
This helps expose duplicate PHIs, which will make it easier for them
to be eliminated.
llvm-svn: 85623
2009-10-30 22:22:22 +00:00
49fa51d936
Fix MachineLICM to use the correct virtual register class when
...
unfolding loads for hoisting. getOpcodeAfterMemoryUnfold returns the
opcode of the original operation without the load, not the load
itself, MachineLICM needs to know the operand index in order to get
the correct register class. Extend getOpcodeAfterMemoryUnfold to
return this information.
llvm-svn: 85622
2009-10-30 22:18:41 +00:00
112caed500
it isn't valid to take the address of the entry block.
...
llvm-svn: 85621
2009-10-30 22:15:48 +00:00
13cb281013
If a type is derived from a derived type then calculate size appropriately.
...
llvm-svn: 85619
2009-10-30 22:09:30 +00:00
6b00f4b7a8
Fix a comment.
...
llvm-svn: 85610
2009-10-30 20:13:25 +00:00
5a6b9c40d6
Add option to createGVNPass to disable PRE.
...
llvm-svn: 85609
2009-10-30 20:12:24 +00:00
94966ca926
Stop the iterator in ValueLiveAt from potentially running off the end of the interval.
...
llvm-svn: 85599
2009-10-30 18:12:09 +00:00
ab7c709f43
This fixes functions like
...
void f (int a1, int a2, int a3, int a4, int a5,...)
In ARMTargetLowering::LowerFormalArguments if the function has 4 or
more regular arguments we used to set VarArgsFrameIndex using an
offset of 0, which is only correct if the function has exactly 4
regular arguments.
llvm-svn: 85590
2009-10-30 14:33:14 +00:00
1cf0b03064
Add ARM codegen for indirect branches.
...
clang/test/CodeGen/indirect-goto.c runs! (unoptimized)
llvm-svn: 85577
2009-10-30 05:45:42 +00:00
b0cad70c24
Most stack straces don't need 3 digits worth of levels.
...
llvm-svn: 85575
2009-10-30 02:45:10 +00:00
64997909a6
Don't delete blocks which have their address taken.
...
llvm-svn: 85572
2009-10-30 02:13:27 +00:00
e0a8b8fc56
Mention if a block has its address taken in debug output.
...
llvm-svn: 85571
2009-10-30 02:08:26 +00:00
43c574068b
Simplify this code and avoid an extra space character in the output.
...
llvm-svn: 85568
2009-10-30 02:01:10 +00:00
4246f00e0c
Add support for BlockAddress static initializers.
...
llvm-svn: 85562
2009-10-30 01:45:18 +00:00
2f8ccf2bf4
Add a FIXME comment.
...
llvm-svn: 85559
2009-10-30 01:38:20 +00:00
c83dc4b506
Add some comments.
...
llvm-svn: 85558
2009-10-30 01:34:35 +00:00
f7c4299312
Initial x86 support for BlockAddresses.
...
llvm-svn: 85557
2009-10-30 01:28:02 +00:00
6c9388011b
Initial target-independent CodeGen support for BlockAddresses.
...
llvm-svn: 85556
2009-10-30 01:27:03 +00:00
8578068302
Dial back the realignment a bit.
...
llvm-svn: 85546
2009-10-30 00:08:40 +00:00
faa7660fd0
Between scheduling regions, correctly maintain anti-dep breaking state so that we don't incorrectly rename registers that span these regions.
...
llvm-svn: 85537
2009-10-29 23:30:59 +00:00
05efd893db
Remove some unnecessary spaces in debug output.
...
llvm-svn: 85536
2009-10-29 23:30:06 +00:00
554a75a973
Move some code from being emitted as boilerplate duplicated in every
...
*ISelDAGToDAG.cpp to being regular code in SelectionDAGISel.cpp.
llvm-svn: 85530
2009-10-29 22:30:23 +00:00
9f1b2d4619
Fix a couple of bugs in aggressive anti-dep breaking.
...
llvm-svn: 85522
2009-10-29 19:17:04 +00:00
94f8f87890
Refactor complicated predicate into a separate function.
...
llvm-svn: 85519
2009-10-29 18:40:06 +00:00
78c327f171
First bitcase use may not lead to a dbg.declare intrinsic. Iterate uses until one find's dbg.declare intrinsic.
...
Patch by Sunae Seo.
llvm-svn: 85518
2009-10-29 18:20:34 +00:00
453d64c9f5
Rename usesCustomDAGSchedInserter to usesCustomInserter, and update a
...
bunch of associated comments, because it doesn't have anything to do
with DAGs or scheduling. This is another step in decoupling MachineInstr
emitting from scheduling.
llvm-svn: 85517
2009-10-29 18:10:34 +00:00
104f57cae8
Refactor the code for unfolding a load into a separate function.
...
llvm-svn: 85515
2009-10-29 17:47:20 +00:00
c44768ae69
Reapply r85338.
...
llvm-svn: 85514
2009-10-29 17:39:46 +00:00
5e1db97573
Fix MSVC build.
...
llvm-svn: 85505
2009-10-29 12:55:32 +00:00
b43a43a8fd
Apply some cleanups. No functionality changes.
...
llvm-svn: 85498
2009-10-29 07:35:15 +00:00
6747b4ca30
add sanity check for indbr.
...
llvm-svn: 85496
2009-10-29 05:53:32 +00:00
312748848f
just for the hell of it, allow globalopt to statically evaluate
...
static constructors with indirect gotos :)
llvm-svn: 85495
2009-10-29 05:51:50 +00:00
0c778f70e9
add interpreter support for indirect goto / blockaddress. The interpreter
...
now correctly runs clang's test/CodeGen/indirect-goto.c. The JIT will abort
on it until someone feels compelled to implement this.
llvm-svn: 85488
2009-10-29 05:26:09 +00:00
0590837d34
fix 80-col.
...
llvm-svn: 85480
2009-10-29 04:41:24 +00:00
d74ffbde67
Explicitly convert to double to suppress Visual C++ 2008 build error C2668 pow is ambiguous call to overloaded function
...
llvm-svn: 85478
2009-10-29 03:43:06 +00:00
b352d76480
To get more thorough testing from llc-beta nightly runs, do dynamic stack
...
realignment regardless of whether it's strictly necessary.
llvm-svn: 85476
2009-10-29 02:41:21 +00:00
cad78a7634
When the function is doing dynamic stack realignment, the spill slot will be
...
indexed via the stack pointer, even if a frame pointer is present. Update the
heuristic to place it nearest the stack pointer in that case, rather than
nearest the frame pointer.
llvm-svn: 85474
2009-10-29 02:33:47 +00:00
ee8b951e73
teach various passes about blockaddress. We no longer
...
crash on any clang tests.
llvm-svn: 85465
2009-10-29 01:21:20 +00:00
8829fc3a18
When there is a 2-instruction spill sequence, record
...
the second (store) instruction in SpillSlotToUsesMap
consistently. I don't think this matters functionally,
but it's cleaner and Evan wants it this way.
llvm-svn: 85463
2009-10-29 01:15:40 +00:00
3505c94923
Don't put in these EH changes.
...
llvm-svn: 85460
2009-10-29 00:37:35 +00:00
be060382e9
teach ValueMapper about BlockAddress', making bugpoint a lot more useful.
...
llvm-svn: 85458
2009-10-29 00:31:02 +00:00
cf5a47d63d
unindent massive blocks, no functionality change.
...
llvm-svn: 85457
2009-10-29 00:28:30 +00:00
a8eceedb82
Reverting r85338 for now. It's causing a bootstrap failure on PPC darwin9.
...
--- Reverse-merging r85338 into '.':
U lib/CodeGen/SimpleRegisterCoalescing.cpp
U lib/CodeGen/SimpleRegisterCoalescing.h
llvm-svn: 85454
2009-10-29 00:22:16 +00:00
3903320a48
Add a hasAddressTaken for BasicBlock.
...
llvm-svn: 85449
2009-10-29 00:09:08 +00:00
3ab552ec74
Reimplement BranchFolding change to avoid tail merging for a 1 instruction
...
common tail, except when the OptimizeForSize function attribute is present.
Radar 7338114.
llvm-svn: 85441
2009-10-28 22:10:20 +00:00
14f162d9dc
When we generate spill code, then decide we don't need
...
to spill after all, we weren't handling 2-instruction
spill sequences correctly (PPC Altivec). We need to
remove the store in this case. Removing the other
instruction(s) would be goodness but is not needed for
correctness, and isn't done here. 7331562.
llvm-svn: 85437
2009-10-28 21:56:18 +00:00
1fd4c577d2
Make sure we return the right sized type here.
...
llvm-svn: 85436
2009-10-28 21:32:16 +00:00
97b9312663
Revert r85346 change to control tail merging by CodeGenOpt::Level.
...
I'm going to redo this using the OptimizeForSize function attribute.
llvm-svn: 85426
2009-10-28 20:46:46 +00:00
0d025421cd
Extend getMallocArraySize() to determine the array size if the malloc argument is:
...
ArraySize * ElementSize
ElementSize * ArraySize
ArraySize << log2(ElementSize)
ElementSize << log2(ArraySize)
Refactor isArrayMallocHelper and delete isSafeToGetMallocArraySize, so that there is only 1 copy of the malloc array determining logic.
Update users of getMallocArraySize() to not bother calling isArrayMalloc() as well.
llvm-svn: 85421
2009-10-28 20:18:55 +00:00
e30ed53c05
Make AntiDepReg.h internal.
...
llvm-svn: 85412
2009-10-28 18:29:54 +00:00
73789b848d
Add a Thumb BRIND pattern. Change the ARM BRIND assembly to separate the
...
opcode and operand with a tab. Check for these instructions in the usual
places.
llvm-svn: 85411
2009-10-28 18:26:41 +00:00
6203c6868f
fconsts and fconstd are obviously re-materializable.
...
llvm-svn: 85410
2009-10-28 18:19:56 +00:00
294aea709e
Cleanup now that frame index scavenging via post-pass is working for ARM and Thumb2.
...
llvm-svn: 85406
2009-10-28 17:33:28 +00:00
ffd561bc2d
llvm.dbg.global_variables do not exist anymore.
...
llvm-svn: 85402
2009-10-28 16:51:52 +00:00
fbaac77c70
add a new 'SetCurrentDebugType' API (requested by Andrew Haley for JIT
...
stuff) to programmatically control the current debug flavor. While
I'm at it, doxygenate Debug.h and clean it up.
llvm-svn: 85395
2009-10-28 15:32:19 +00:00
14ca753e28
Don't call SDNode::isPredecessorOf when it isn't necessary. If the load's
...
chains have no users, they can't be predecessors of the condition.
llvm-svn: 85394
2009-10-28 15:28:02 +00:00
57780dfdfc
Simplify this code: if the unfolded load can't be hoisted, just delete
...
the new instructions and leave the old one in place.
llvm-svn: 85393
2009-10-28 15:23:36 +00:00
1042ca112f
No newline at end of file.
...
llvm-svn: 85390
2009-10-28 15:04:53 +00:00
ecc60b80b0
Update CMake file.
...
llvm-svn: 85389
2009-10-28 13:29:18 +00:00
2b2bd28973
Treat lifetime begin/end markers as allocations/frees respectively for the
...
purposes for GVN/DSE.
llvm-svn: 85383
2009-10-28 07:05:35 +00:00
175308c43e
Add ABCD, a generalized implementation of the Elimination of Array Bounds
...
Checks on Demand algorithm which looks at arbitrary branches instead of loop
iterations. This is GSoC work by Andre Tavares with only editorial changes
applied!
llvm-svn: 85382
2009-10-28 07:03:15 +00:00
ec6d7c945d
Give ARMISD::EH_SJLJ_LONGJMP and EH_SJLJ_SETJMP names.
...
llvm-svn: 85381
2009-10-28 06:55:03 +00:00
fc16e5a98f
Be more careful about invariance reasoning on "store" queries. Stores still need
...
to depend on Ref and ModRef calls within the invariant region.
llvm-svn: 85380
2009-10-28 06:30:52 +00:00
f64db3e1d0
X86 palignr intrinsics immediate field is in bits. ISel must transform it into bytes.
...
llvm-svn: 85379
2009-10-28 06:30:34 +00:00
d0e86d57c1
Add trivial support for the invariance intrinsics to memdep. This logic is
...
purely local for now.
llvm-svn: 85378
2009-10-28 06:18:42 +00:00
5956dc87d3
add bitcode reader support for blockaddress. We can now fully
...
round trip blockaddress through .ll and .bc files, so add a testcase.
There are still a bunch of places in the optimizer and other places
that need to be updated to work with these constructs, but at least
the basics are in now.
llvm-svn: 85377
2009-10-28 05:53:48 +00:00
f540d74b58
bitcode writer support for blockaddress.
...
llvm-svn: 85376
2009-10-28 05:24:40 +00:00
a91a563530
Previously, all operands to Constant were themselves constant.
...
In the new world order, BlockAddress can have a BasicBlock operand.
This doesn't permute much, because if you have a ConstantExpr (or
anything more specific than Constant) we still know the operand has
to be a Constant.
llvm-svn: 85375
2009-10-28 05:14:34 +00:00
2cb85b4020
'static const void *X = &&y' can only be put in the
...
readonly section if a reference to the containing function
is valid in the readonly section.
llvm-svn: 85370
2009-10-28 04:12:16 +00:00
cd139c0373
Rewrite SelectionDAG::isPredecessorOf to be iterative instead of
...
recursive to avoid consuming extraordinary amounts of stack space
when processing tall graphs.
llvm-svn: 85369
2009-10-28 03:44:30 +00:00
3432c62d93
full asmparser support for blockaddress. We can now do:
...
$ llvm-as foo.ll -d -disable-output
which reads and prints the .ll file. BC encoding is the
next project. Testcase will go in once that works.
llvm-svn: 85368
2009-10-28 03:39:23 +00:00
214cc709bc
asmprinter support for BlockAddress.
...
llvm-svn: 85367
2009-10-28 03:38:12 +00:00
3a39530445
when we tear down a module, we need to be careful to
...
zap BlockAddress values.
llvm-svn: 85366
2009-10-28 03:37:35 +00:00
1b44f10ff4
Teach MachineLICM to unfold loads from constant memory from
...
otherwise unhoistable instructions in order to allow the loads
to be hoisted.
llvm-svn: 85364
2009-10-28 03:21:57 +00:00
4a609f3cef
Use fconsts and fconstd to materialize small fp constants.
...
llvm-svn: 85362
2009-10-28 01:44:26 +00:00
83896a59e1
Add a second ValueType argument to isFPImmLegal.
...
llvm-svn: 85361
2009-10-28 01:43:28 +00:00
4b46cbfc23
Mark dead physregdefs dead immediately. This helps MachineSink and
...
MachineLICM and other things which run before LiveVariables is run.
llvm-svn: 85360
2009-10-28 01:13:53 +00:00
75d6a4afd2
Allow constants of different types to share constant pool entries
...
if they have compatible encodings.
llvm-svn: 85359
2009-10-28 01:12:16 +00:00
deab9dee12
Remove getIEEEFloatParts and getIEEEDoubleParts. They are not needed.
...
llvm-svn: 85358
2009-10-28 01:08:17 +00:00
9c6bc1f563
Update SystemZ to use PSW following the way x86 uses EFLAGS. Besides
...
eliminating a use of MVT::Flag, this is needed for an upcoming CodeGen
change.
This unfortunately requires SystemZ to switch to the list-burr
scheduler, in order to handle the physreg defs properly, however
that's what LLVM has available at this time.
llvm-svn: 85357
2009-10-28 00:55:57 +00:00
e4b80c9bee
Add an indirect branch pattern for ARM. Testcase will be coming soon.
...
llvm-svn: 85355
2009-10-28 00:37:03 +00:00
d04cb6d0fa
rename indbr -> indirectbr to appease the residents of #llvm.
...
llvm-svn: 85351
2009-10-28 00:19:10 +00:00
31b132c0b7
IR support for the new BlockAddress constant kind. This is
...
untested and there is no way to use it, next up: doing battle
with asmparser.
llvm-svn: 85349
2009-10-28 00:01:44 +00:00
9693f9d465
Record CodeGen optimization level in the BranchFolding pass so that we can
...
use it to control tail merging when there is a tradeoff between performance
and code size. When there is only 1 instruction in the common tail, we have
been merging. That can be good for code size but is a definite loss for
performance. Now we will avoid tail merging in that case when the
optimization level is "Aggressive", i.e., "-O3". Radar 7338114.
Since the IfConversion pass invokes BranchFolding, it too needs to know
the optimization level. Note that I removed the RegisterPass instantiation
for IfConversion because it required a default constructor. If someone
wants to keep that for some reason, we can add a default constructor with
a hard-wired optimization level.
llvm-svn: 85346
2009-10-27 23:49:38 +00:00
f6ee7bea88
Rename lib/VMCore/ConstantsContext.h:ValueMap<> to ConstantUniqueMap<> to avoid
...
colliding with llvm/ADT/ValueMap.h:ValueMap<>.
llvm-svn: 85344
2009-10-27 23:45:55 +00:00
2e5198ff09
Add new note.
...
llvm-svn: 85341
2009-10-27 23:30:07 +00:00
cd3939ef0e
Fixed a bug in the coalescer where intervals were occasionally merged despite a real interference. This fixes rdar://problem/7157961.
...
llvm-svn: 85338
2009-10-27 23:16:58 +00:00
5607d2cb54
Enable virtual register based frame index scavenging by default for ARM & T2.
...
llvm-svn: 85335
2009-10-27 22:52:29 +00:00
fd2730ee8c
Move and clarify note.
...
llvm-svn: 85334
2009-10-27 22:48:31 +00:00
c1403a0024
Infrastructure for dynamic stack realignment on ARM. For now, this is off by
...
default behind a command line option. This will enable better performance for
vectors on NEON enabled processors.
llvm-svn: 85333
2009-10-27 22:45:39 +00:00
2974f63cb5
Note corrected.
...
llvm-svn: 85332
2009-10-27 22:43:24 +00:00
cd4d148040
Modify note.
...
llvm-svn: 85331
2009-10-27 22:40:45 +00:00
a205402c16
Add a note.
...
llvm-svn: 85329
2009-10-27 22:34:43 +00:00
11cf3f4a27
Factor out redundancy from clone() implementations.
...
llvm-svn: 85327
2009-10-27 22:16:29 +00:00
a5e078b677
Update the MachineBasicBlock CFG for an indirect branch.
...
llvm-svn: 85325
2009-10-27 22:10:34 +00:00
a4374e66f0
Add CodeGen support for indirect branches.
...
llvm-svn: 85323
2009-10-27 21:56:26 +00:00
Jakob Stoklund Olesen