50ab26e835
Reapply r41578 with proper fix
...
llvm-svn: 41680
2007-09-03 00:36:06 +00:00
35322d745c
Silence warning while compiling with gcc 4.2
...
llvm-svn: 41676
2007-09-02 22:11:14 +00:00
38ce90fd44
Emit proper "secrel" directive, where possible. This fixes invalid asm syntax of debug info on mingw32. Also, cleanup
...
some stuff.
llvm-svn: 41675
2007-09-02 22:07:21 +00:00
2089a21360
More tweaks to improve compile time.
...
llvm-svn: 41669
2007-09-01 02:03:17 +00:00
ffac17a223
Fix a gcroot lowering bug.
...
llvm-svn: 41668
2007-09-01 02:00:51 +00:00
689d17d282
Oops, should be part of 41664; won't work very well without this piece.
...
llvm-svn: 41665
2007-08-31 23:35:31 +00:00
446b900192
Add mod, copysign, abs operations to APFloat.
...
Implement some constant folding in SelectionDAG and
DAGCombiner using APFloat. Remove double versions
of constructor and getValue from ConstantFPSDNode.
llvm-svn: 41664
2007-08-31 23:34:27 +00:00
7bef79a1c3
std::map -> DenseMap for slight compile time benefit.
...
llvm-svn: 41650
2007-08-31 21:23:06 +00:00
da7469f2b5
Revise per review of previous patch.
...
llvm-svn: 41645
2007-08-31 17:03:33 +00:00
e636fc05d6
Initial support for calling functions with byval arguments on x86-64
...
llvm-svn: 41643
2007-08-31 15:06:30 +00:00
bb8a5cff67
Align i64 and f64 at 8 byte on x86-64.
...
This is mandated table 3.1 at
http://www.x86-64.org/documentation/abi.pdf
llvm-svn: 41642
2007-08-31 12:23:58 +00:00
91becf4ffa
Remove an unnecessary element, saving 4 bytes per LiveInterval.
...
llvm-svn: 41641
2007-08-31 08:26:44 +00:00
262596e76a
Use std::map instead of a (potentially very sparse) array to track val# defined by copy from the other live range. Minor compile time win when number of val# is large.
...
llvm-svn: 41640
2007-08-31 08:04:17 +00:00
3cf889f75e
Enhance APFloat to retain bits of NaNs (fixes oggenc).
...
Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.
llvm-svn: 41632
2007-08-31 04:03:46 +00:00
ab871baaf8
Instruction formats added used to generate multiply instructions of V5TE.
...
llvm-svn: 41629
2007-08-30 23:34:14 +00:00
ff32b62942
Unused relocation type reloc_arm_absolute removed.
...
llvm-svn: 41628
2007-08-30 23:31:35 +00:00
1457b2b3b1
Comments added. It now generates V5TE multiply instructions. However, it is still necessary to model PUWLSH bits more clearly.
...
llvm-svn: 41627
2007-08-30 23:29:26 +00:00
73489273ae
ARM instruction table was modified by adding information to generate multiply instruction of V5TE.
...
llvm-svn: 41626
2007-08-30 23:25:47 +00:00
ae1b924c79
JITInfo now resolves function addrs and also relocations. It always emits a stub.
...
llvm-svn: 41625
2007-08-30 23:21:27 +00:00
ebb8540067
Added support to fold X86 load / store instructions. This allow rematerialized loads to be folded into their uses.
...
llvm-svn: 41599
2007-08-30 05:54:07 +00:00
32a0a995c6
Try fold re-materialized load instructions into its uses.
...
llvm-svn: 41598
2007-08-30 05:53:02 +00:00
9a25d98c86
Add a variant of foldMemoryOperand to fold any load / store, not just load / store from / to stack slots.
...
llvm-svn: 41597
2007-08-30 05:52:20 +00:00
c2081fe573
Mark load instructions with isLoad = 1.
...
llvm-svn: 41595
2007-08-30 05:49:43 +00:00
10e18dea2a
Use i64 on a PPC64 machine
...
llvm-svn: 41590
2007-08-30 00:59:19 +00:00
d246b2ca5c
Change LegalFPImmediates to use APFloat.
...
Add APFloat interfaces to ConstantFP, SelectionDAG.
Fix integer bit in double->APFloat conversion.
Convert LegalizeDAG to use APFloat interface in
ConstantFPSDNode uses.
llvm-svn: 41587
2007-08-30 00:23:21 +00:00
2bdec2a5ee
Fix use of declaration inside case block
...
llvm-svn: 41584
2007-08-29 23:18:48 +00:00
1ad4a6117b
Change LiveRange so it keeps a pointer to the VNInfo rather than an index.
...
Changes related modules so VNInfo's are not copied. This decrease
copy coalescing time by 45% and overall compilation time by 10% on siod.
llvm-svn: 41579
2007-08-29 20:45:00 +00:00
830b1cb4e9
Lower FRAME_TO_ADDR_OFFSET to zero by default (if not custom lowered)
...
llvm-svn: 41578
2007-08-29 19:28:29 +00:00
7741427a09
Move getX86RegNum into X86RegisterInfo and use it
...
in the trampoline lowering. Lookup the jump and
mov opcodes for the trampoline rather than hard
coding them.
llvm-svn: 41577
2007-08-29 19:01:20 +00:00
8d22b4e18a
update these
...
llvm-svn: 41565
2007-08-29 16:15:23 +00:00
81b62e1218
Add an option, -view-sunit-dags, for viewing the actual SUnit DAGs used by
...
scheduling.
llvm-svn: 41556
2007-08-28 20:32:58 +00:00
a5b10b334f
Recover most of the compile time regression due to recent live interval changes.
...
1. Eliminate the costly live interval "swapping".
2. Change ValueNumberInfo container from SmallVector to std::vector. The former
performs slowly when the vector size is very large.
llvm-svn: 41536
2007-08-28 08:28:51 +00:00
43318839c9
Added method to get Mips register numbers
...
Changed the stack frame layout, StackGrowsUp fits better to Mips strange stack.
Stack offset calculation bug fixed!
llvm-svn: 41529
2007-08-28 05:13:42 +00:00
14033fb5cb
Changed stack allocation On LowerFORMAL_ARGUMENTS.
...
Added comments about new stack allocation.
Expand SelectCC for i32 results
llvm-svn: 41527
2007-08-28 05:08:16 +00:00
cfd1638e2d
Mask directive completed with CalleeSave info
...
Comments for Mips directives added.
llvm-svn: 41526
2007-08-28 05:06:17 +00:00
f55a785e56
Added methods to record SPOffsets from LowerFORMAL_ARGUMENTS
...
llvm-svn: 41525
2007-08-28 05:04:41 +00:00
0e258b8518
Cut off crazy computation. This helps PR1622 slightly.
...
llvm-svn: 41522
2007-08-28 04:23:55 +00:00
d2456a171d
Use simpler test to filter loops.
...
llvm-svn: 41516
2007-08-27 21:34:31 +00:00
703623d571
Update InvokeInst to work like CallInst
...
llvm-svn: 41506
2007-08-27 19:04:21 +00:00
b602461f48
Add a comment about using libc memset/memcpy or generating inline code.
...
llvm-svn: 41502
2007-08-27 17:48:26 +00:00
9625d812c9
Make DAGCombiner's global alias analysis query more precise in the case
...
where both pointers have non-zero offsets.
llvm-svn: 41491
2007-08-27 16:32:11 +00:00
8dc0b93151
If the source and destination pointers in an llvm.memmove are known
...
to not alias each other, it can be translated as an llvm.memcpy.
llvm-svn: 41489
2007-08-27 16:26:13 +00:00
71eaf62e5f
Change comments to refer to @malloc and @free instead of %malloc and %free.
...
llvm-svn: 41488
2007-08-27 16:11:48 +00:00
ef5a654216
There is an impedance matching problem between LLVM and
...
gcc exception handling: if an exception unwinds through
an invoke, then execution must branch to the invoke's
unwind target. We previously tried to enforce this by
appending a cleanup action to every selector, however
this does not always work correctly due to an optimization
in the C++ unwinding runtime: if only cleanups would be
run while unwinding an exception, then the program just
terminates without actually executing the cleanups, as
invoke semantics would require. I was hoping this
wouldn't be a problem, but in fact it turns out to be the
cause of all the remaining failures in the LLVM testsuite
(these also fail with -enable-correct-eh-support, so turning
on -enable-eh didn't make things worse!). Instead we need
to append a full-blown catch-all to the end of each
selector. The correct way of doing this depends on the
personality function, i.e. it is language dependent, so
can only be done by gcc. Thus this patch which generalizes
the eh.selector intrinsic so that it can handle all possible
kinds of action table entries (before it didn't accomodate
cleanups): now 0 indicates a cleanup, and filters have to be
specified using the number of type infos plus one rather than
the number of type infos. Related gcc patches will cause
Ada to pass a cleanup (0) to force the selector to always
fire, while C++ will use a C++ catch-all (null).
llvm-svn: 41484
2007-08-27 15:47:50 +00:00
032d89828e
Add explicit keywords and remove spurious trailing semicolons.
...
llvm-svn: 41482
2007-08-27 14:50:10 +00:00
ff33241e16
call libc memcpy/memset if array size is bigger then threshold.
...
Coping 100MB array (after a warmup) shows that glibc 2.6.1 implementation on
x86-64 (core 2) is 30% faster (from 0.270917s to 0.188079s)
llvm-svn: 41479
2007-08-27 10:18:20 +00:00
24fb6b2f8c
Don't promote volatile loads/stores. This is needed (for example) to handle setjmp/longjmp properly.
...
This fixes PR1520.
llvm-svn: 41461
2007-08-26 21:43:30 +00:00
2b9ec7ff33
Don't DSe volatile stores.
...
llvm-svn: 41456
2007-08-26 21:14:47 +00:00
b6d2bec418
Revise per review comments.
...
llvm-svn: 41409
2007-08-26 01:18:27 +00:00
2cfcf70f82
Add APFloat interface to ConstantFPSDNode. Change
...
over uses in DAGCombiner. Fix interfaces to work
with APFloats.
llvm-svn: 41407
2007-08-25 22:10:57 +00:00
6114751544
Move exit condition and exit branch from exiting block into loop header and dominator info. This avoid execution of dead iteration. Loop is already filter in the beginning such that this change is safe.
...
llvm-svn: 41394
2007-08-25 02:39:24 +00:00
c1ef32ef3d
Constant split values needs upper bound and lower bound check, just like any other split value.
...
llvm-svn: 41389
2007-08-25 01:09:14 +00:00
2ed652f11d
Allow target constants to be illegal types. The target should
...
know how to handle them. This fixes
test/CodeGen/Generic/asm-large-immediate.ll
llvm-svn: 41388
2007-08-25 01:00:22 +00:00
4e63e1f5b5
While calculating upper loop bound for first loop and lower loop bound for second loop, take care of edge cases.
...
llvm-svn: 41387
2007-08-25 00:56:38 +00:00
dbfc4e4b07
Teach the dag scheduler to handle inline asm nodes with multi-value immediate operands.
...
llvm-svn: 41386
2007-08-25 00:53:07 +00:00
48597b4ff8
The personality function might need to be declared as:
...
.set Lset0,___gxx_personality_v0-.
.long Lset0
on some targets. Make it so!
llvm-svn: 41385
2007-08-25 00:51:55 +00:00
d8c9cb9182
rename isOperandValidForConstraint to LowerAsmOperandForConstraint,
...
changing the interface to allow for future changes.
llvm-svn: 41384
2007-08-25 00:47:38 +00:00
bdea32d812
Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual.
...
This means backing out the preceding change to Constants.cpp, alas.
llvm-svn: 41378
2007-08-24 22:09:56 +00:00
7891d8edf0
Use APFloat internally for ConstantFPSDNode.
...
llvm-svn: 41372
2007-08-24 20:59:15 +00:00
0b490b0d38
sink clone() down the class hierarchy from CmpInst into ICmpInst/FCmpInst.
...
This eliminates a conditional on that path, and ensures ICmpInst/FCmpInst
both have an out-of-line virtual method to home the class.
llvm-svn: 41371
2007-08-24 20:48:18 +00:00
f5a01bf025
Fix regression that I caused yesterday night while adding logic to select appropriate split condition branch.
...
llvm-svn: 41365
2007-08-24 19:32:26 +00:00
a124f69c52
Disable EH generation until PPC works 100%.
...
llvm-svn: 41360
2007-08-24 16:00:15 +00:00
51883acec1
add a note
...
llvm-svn: 41359
2007-08-24 15:17:59 +00:00
4bc9298f2a
It is not safe to execute split condition's true branch first all the time. If split
...
condition predicate is GT or GE then execute false branch first.
llvm-svn: 41358
2007-08-24 06:17:19 +00:00
4be56a5d12
Reject ICMP_NE as index split condition.
...
llvm-svn: 41357
2007-08-24 06:02:25 +00:00
5e46fac6de
Tightenup loop filter.
...
llvm-svn: 41356
2007-08-24 05:36:56 +00:00
504dc0aaed
Remove incomplete cost analysis.
...
llvm-svn: 41354
2007-08-24 05:21:13 +00:00
918c33c67a
Revised per review feedback from previous patch.
...
llvm-svn: 41353
2007-08-24 05:08:11 +00:00
3da18eb22a
silence some warnings in an optimized build.
...
llvm-svn: 41352
2007-08-24 03:02:34 +00:00
a719a60609
Change internal representation of ConstantFP to use APFloat.
...
Interface to rest of the compiler unchanged, as yet.
llvm-svn: 41348
2007-08-24 00:56:33 +00:00
33800d1428
add some notes on really poor codegen.
...
llvm-svn: 41319
2007-08-23 15:22:07 +00:00
92c6a65d4e
new example
...
llvm-svn: 41318
2007-08-23 15:16:03 +00:00
97cdac8d19
Perform correct codegen for eh_dwarf_cfa intrinsic.
...
llvm-svn: 41316
2007-08-23 07:21:06 +00:00
b0f158cfdf
rename APInt::toString -> toStringUnsigned for symmetry with toStringSigned()
...
Add an APSInt::toString() method.
llvm-svn: 41309
2007-08-23 05:15:32 +00:00
887db2d832
Remove dead code.
...
llvm-svn: 41295
2007-08-22 21:07:41 +00:00
6f4f23320d
Fix typo.
...
llvm-svn: 41292
2007-08-22 20:55:18 +00:00
31206b56d5
Cosmetic change
...
"True Loop" and "False Loop" naming terminology to refer two loops
after loop cloning is confusing. Instead just use A_Loop and B_Loop.
llvm-svn: 41287
2007-08-22 19:33:29 +00:00
beb80a9832
move this check. ppc outputs .no_dead_strip properly
...
llvm-svn: 41286
2007-08-22 19:33:11 +00:00
862afea91e
Add the PCSymbol for Darwin x86 platforms.
...
llvm-svn: 41284
2007-08-22 18:44:05 +00:00
90da534987
Refactor loop condition check in a separate function.
...
llvm-svn: 41282
2007-08-22 18:27:01 +00:00
cd8beb7645
Fix thinko.
...
Starting value of second loop's induction variable can not be lower
then starting value of original loop's induction variable.
llvm-svn: 41280
2007-08-22 18:07:47 +00:00
a12000d572
Rename bunch of variables.
...
llvm-svn: 41250
2007-08-21 21:12:02 +00:00
f98db5e62a
Preserve LCSSA.
...
llvm-svn: 41246
2007-08-21 19:47:46 +00:00
f5e520d892
Use SmallVector.
...
llvm-svn: 41230
2007-08-21 16:54:51 +00:00
a9e7c4f827
No need to hardcode SmallVector size.
...
llvm-svn: 41228
2007-08-21 16:39:43 +00:00
b10580ac1e
InlineAsm asm support for integer registers added
...
llvm-svn: 41225
2007-08-21 16:09:25 +00:00
d4b9945a21
Instruction Itinerary attribution fixed
...
llvm-svn: 41224
2007-08-21 16:06:45 +00:00
913849b5df
Fix potentially N^2 behavior handling arrays with many of the
...
same value which get RAUW'd. This speeds up reading the .bc
file in PR1616 from 852s to 0.19s on my G5 with a debug build.
llvm-svn: 41209
2007-08-21 00:55:23 +00:00
f335679b52
Use only 1 knob to enable exceptions on Darwin :).
...
llvm-svn: 41208
2007-08-21 00:31:30 +00:00
b5933bbbd5
Use SmallVector instead of std::vector.
...
llvm-svn: 41207
2007-08-21 00:31:24 +00:00
8e5b2c27a3
simplify code, improve a comment.
...
llvm-svn: 41205
2007-08-21 00:21:07 +00:00
8f4228d619
s/ExitBlock/ExitingBlock/g
...
llvm-svn: 41204
2007-08-20 23:51:18 +00:00
fe02c1f97f
initial checkin of Neil's APFloat work.
...
llvm-svn: 41203
2007-08-20 22:49:32 +00:00
5849a625ff
- Use correct header for SCEV inside LoopPass.cpp
...
- Move SCEVExpander::expand() out-of-line workarounding possible toolchain bug
llvm-svn: 41197
2007-08-20 21:17:26 +00:00
49c4f9a889
Replace indunction variable with split value in loop body.
...
This fixes art miscompile.
llvm-svn: 41195
2007-08-20 20:49:01 +00:00
c2e2d15f45
Do not split loops rejected by processOneIterationLoop().
...
llvm-svn: 41194
2007-08-20 20:24:15 +00:00
54a187ea8b
Minor cleanups to reduce some spurious differences between different
...
scheduler implementations.
llvm-svn: 41191
2007-08-20 19:28:38 +00:00
f63668e655
Add Type::isIntOrIntVector, like Type::isFPOrFPVector.
...
llvm-svn: 41190
2007-08-20 19:25:59 +00:00
3a0714836e
When Intrinsic::getName is constructing names for overloaded intrinsics,
...
use the ValueType name instead of the llvm type name, to match what the
verifier expects. For integers these are the same, but for floating-point
values the intrinsics use f32/f64 instead of float/double.
llvm-svn: 41189
2007-08-20 19:23:34 +00:00
9c3d20d823
Partial implementation of calling functions with byval arguments:
...
*) The needed information is propagated to the DAG
*) The X86-64 backend detects it and aborts
llvm-svn: 41179
2007-08-20 15:18:24 +00:00
78846b69ae
add a note
...
llvm-svn: 41178
2007-08-20 02:14:33 +00:00
1cc79985cd
Fix PR1611 - Visibility should be ignored for a declaration
...
when a definition's visibility is different. Likewise, the
visibility of two declarations mismatching is not an error.
llvm-svn: 41174
2007-08-19 22:22:54 +00:00
10f03a644a
simplify code and print visibility for declarations.
...
llvm-svn: 41173
2007-08-19 22:15:26 +00:00
bfa9499a88
Oops, remove assert that wasn't meant to be committed.
...
llvm-svn: 41170
2007-08-18 23:21:28 +00:00
5b5b1ab9e0
Never insert duplicate edges.
...
llvm-svn: 41169
2007-08-18 23:18:03 +00:00
a0d49dac26
Typo.
...
llvm-svn: 41168
2007-08-18 15:08:56 +00:00
e2de908a28
Compute the argument list as lazily as possible. This ensures that clients
...
that don't use it don't have to pay the memory cost for the arguments. This
allows us to avoid creating Argument nodes for many prototypes and for clients
who lazily deserialize code from a bytecode file.
llvm-svn: 41166
2007-08-18 06:14:52 +00:00
45ffa21cb3
use a nicer accessor.
...
llvm-svn: 41165
2007-08-18 06:13:19 +00:00
f5a23abf37
Fold C ? 0 : 1 to ~C or zext(~C) or trunc(~C) depending the types.
...
llvm-svn: 41163
2007-08-18 05:57:05 +00:00
9fbef51078
MipsHi now has ouput flag
...
MipsAdd SDNode created to add support to an Add opcode which supports input flag
Added an instruction itinerary to all instruction classes
Added branches with zero cond codes
Now call clobbers all non-callee saved registers
Call w/ register support added
Added DelaySlot to branch and load instructions
Added patterns to handle all setcc, brcond/setcc and MipsAdd instructions
llvm-svn: 41161
2007-08-18 02:37:46 +00:00
eabe61b080
Fixed stack frame addressing bug
...
llvm-svn: 41160
2007-08-18 02:19:09 +00:00
f3c55807f2
support for Schedule included on Mips.td
...
llvm-svn: 41159
2007-08-18 02:18:07 +00:00
4bd7f4db9f
Removed LowerRETURADDR, fixed small bug into LowerRET, LowerGlobalAddress
...
fixed to generate instructions (add, lui) glued!
llvm-svn: 41158
2007-08-18 02:16:30 +00:00
833a1f9b55
Couple of small changes. Delay Slot handle header declared.
...
Newline added after macros at function init on generated asm!
llvm-svn: 41157
2007-08-18 02:05:24 +00:00
5792189590
Added InstrItinClass support for instruction formats
...
llvm-svn: 41156
2007-08-18 02:01:28 +00:00
0c530638c7
Branch Analysis and InsertNoop inserted into header files
...
llvm-svn: 41155
2007-08-18 01:59:45 +00:00
a746512fc5
createMipsDelaySlotFillerPass added to mips codegen runtime
...
llvm-svn: 41154
2007-08-18 01:58:15 +00:00
7b616f5742
Added Branch Analysis support
...
Added InsertNoop support
llvm-svn: 41153
2007-08-18 01:56:48 +00:00
e8d1c52cd4
LowerRETURNADDR removed since it was wrong and does not have utility yet!
...
MipsAdd opcode added
llvm-svn: 41152
2007-08-18 01:54:09 +00:00
87beec9afb
InstrItineraryData support on added.
...
Added Mips3 ISA feature (needed when supporting R4000 machines)
llvm-svn: 41151
2007-08-18 01:52:27 +00:00
0b97ce752c
A Pass to insert Nops on intructions with DelaySlot
...
llvm-svn: 41150
2007-08-18 01:50:47 +00:00
415ded5d5a
Mips generic fallback instruction schedule support!
...
llvm-svn: 41149
2007-08-18 01:46:44 +00:00
1282b6e181
Avoid spliting loops where two split condition branches are not independent.
...
llvm-svn: 41148
2007-08-18 00:00:32 +00:00
d1fcfcc76c
When one branch of condition is eliminated then head of the other
...
branch is not necessary immediate dominators of merge blcok in all cases.
llvm-svn: 41144
2007-08-17 21:59:16 +00:00
cb6d65e1bf
Avoid issue on 64-bit hosts.
...
llvm-svn: 41143
2007-08-17 18:02:22 +00:00
81db5acab0
Fix GLIBCXX_DEBUG error of comparing two singular iterators
...
llvm-svn: 41139
2007-08-17 15:13:55 +00:00
631ccc6144
If dynamic_stackalloc alignment is > stack alignment, first issue an instruction to align the stack ptr before the decrement.
...
llvm-svn: 41133
2007-08-16 23:50:06 +00:00
95667c532c
- If a dynamic_stackalloc alignment requirement is <= stack alignment, then the alignment argument is ignored.
...
- *Always* round up the size of the allocation to multiples of stack
alignment to ensure the stack ptr is never left in an invalid state after a dynamic_stackalloc.
llvm-svn: 41132
2007-08-16 23:46:29 +00:00
f5023a7a84
Factor out some code into a helper function.
...
llvm-svn: 41131
2007-08-16 22:51:56 +00:00
88ac781644
Fix the verification for overloaded intrinsic types. Check that they are
...
what they're supposed to be before using them.
llvm-svn: 41130
2007-08-16 22:06:45 +00:00
221a43604e
Add some more comments to GVN.
...
llvm-svn: 41129
2007-08-16 22:02:55 +00:00
febf946ea7
Add MVT::fAny for overloading intrinsics on floating-point types.
...
llvm-svn: 41128
2007-08-16 21:57:19 +00:00
5f208bea91
Cache non-local memory dependence analysis. This is a significant compile
...
time performance win in most cases.
llvm-svn: 41126
2007-08-16 21:27:05 +00:00
6b69568f85
This adds a bunch of static functions that implement unsigned
...
two's complement bignum arithmetic. They could be used to
implement much of APInt, but the idea is they are enough to
implement APFloat as well, which the current APInt interface
is not suited for.
Patch by Neil Booth!
llvm-svn: 41124
2007-08-16 15:56:55 +00:00
19c21c593f
Improve error handling in the linker by:
...
1. Eliminate redundant error messages. LinkInFile and LinkInArchive
already call the error() method in each case so there's no use
telling the user again that an item couldn't be linked in.
2. Improve the formatting of error messages (separating content).
3. Change the wording for the warning about unrecognized files. Make
it clear that the file is being ignored.
llvm-svn: 41121
2007-08-16 07:47:30 +00:00
70c2de7bf1
Fix some kill info update bugs; add hidden option -disable-rematerialization to turn off remat for debugging.
...
llvm-svn: 41118
2007-08-16 07:24:22 +00:00
e97fee7188
Ensure that error messages a propagated from calls to LinkInModule so they get
...
reported to the end user.
llvm-svn: 41117
2007-08-16 07:23:37 +00:00
a392cd2fde
Implement FPOWI ExpandOp.
...
Fix PR1287.
llvm-svn: 41112
2007-08-15 22:13:27 +00:00
b61c63ecd0
Properly use const qualifiers
...
llvm-svn: 41111
2007-08-15 21:12:30 +00:00
958cf3d43e
If the source of a move is in spill slot, the reload may be folded to essentially a load from stack slot. It's ok to mark the stack slot value as available for reuse. But it should not be clobbered since the destination of the move is live.
...
llvm-svn: 41109
2007-08-15 20:20:34 +00:00
597c8b77e4
Move ReturnAddrIndex variable to X86MachineFunctionInfo structure. This fixed
...
hard to catch bugs with retaddr lowering
llvm-svn: 41104
2007-08-15 17:12:32 +00:00
db8adb9941
add a note.
...
llvm-svn: 41103
2007-08-15 16:58:38 +00:00
3640e78057
Dominance frontier is now required.
...
llvm-svn: 41096
2007-08-15 03:34:53 +00:00
b81bcbde09
Cleanup removeBlocks.
...
Use dominance frontier to fixup incoming edges of successor blocks not domianted by DeadBB.
Use df_iterator to walk and delete basic blocks dominated by DeadBB.
llvm-svn: 41095
2007-08-15 03:31:47 +00:00
0db035567c
Remove unneeded header file.
...
llvm-svn: 41094
2007-08-15 03:01:04 +00:00
f55b79fa71
Avoid triangle loops.
...
llvm-svn: 41093
2007-08-15 02:14:55 +00:00
22c7993ecf
Break infinite loop.
...
llvm-svn: 41091
2007-08-14 23:59:17 +00:00
7cad917160
Avoid nested loops at the moment.
...
llvm-svn: 41090
2007-08-14 23:53:57 +00:00
3f22fffe94
- If a def is dead, do not spill it.
...
- If the defs of a spilled rematerializable MI are dead after the spill store is deleted, delete
the def MI as well.
llvm-svn: 41086
2007-08-14 23:25:37 +00:00
94168a4ed0
Fix for PR1596: AdjustCopiesBackFrom() should conservatively check if any of its sub-registers may overlap with the interval of the copy that's being coalesced.
...
llvm-svn: 41084
2007-08-14 23:19:28 +00:00
6cb9fd7be5
If a MI's def is remat as well as spilled, and the store is later deemed dead, mark the def operand as isDead.
...
llvm-svn: 41083
2007-08-14 20:23:13 +00:00
33ba97d747
Fix dominance frontier update while removing blocks.
...
llvm-svn: 41082
2007-08-14 18:35:57 +00:00
bc271a02fd
Eliminate PHI nodes with constant values during normal GVN processing, even when
...
they're not related to eliminating a load.
llvm-svn: 41081
2007-08-14 18:33:27 +00:00
398602a6eb
Be more aggressive in pruning unnecessary PHI nodes when doing PHI construction.
...
llvm-svn: 41080
2007-08-14 18:16:29 +00:00
676070d503
Make GVN iterative.
...
llvm-svn: 41078
2007-08-14 18:04:11 +00:00
a7b220f23a
Fix a case where GVN was failing to return true when it had, in fact, modified
...
the function.
llvm-svn: 41077
2007-08-14 17:59:48 +00:00
367260c0df
Assert sooner. Fix wordings.
...
llvm-svn: 41075
2007-08-14 16:53:52 +00:00
234386509b
If a spilled value is being reused and the use is a kill, that means there are
...
no more uses within the MBB and the spilled value isn't live out of the MBB.
Then it's safe to delete the spill store.
llvm-svn: 41069
2007-08-14 09:11:18 +00:00
78a8806f4f
If a rematerializable def is not deleted, i.e. it is also spilled, check if the
...
spilled value is available for reuse.
llvm-svn: 41067
2007-08-14 05:42:54 +00:00
74c69f7588
Kill info update bugs.
...
llvm-svn: 41064
2007-08-14 01:56:58 +00:00
dbe8497d45
Handle last value assignments.
...
llvm-svn: 41063
2007-08-14 01:30:57 +00:00
f74ccbb4e8
StartValue is already calculated.
...
llvm-svn: 41062
2007-08-14 00:15:45 +00:00
33820da1da
Re-implement trivial rematerialization. This allows def MIs whose live intervals that are coalesced to be rematerialized.
...
llvm-svn: 41060
2007-08-13 23:45:17 +00:00
b2823dac69
Fix a typo pointd out by Maarten ter Huurne.
...
llvm-svn: 41059
2007-08-13 23:27:11 +00:00
948653915f
Preserve simple analysis.
...
llvm-svn: 41054
2007-08-13 22:22:13 +00:00
b8a41bb4f1
Preserve dominator info.
...
llvm-svn: 41053
2007-08-13 22:13:24 +00:00
c0fa0c52b3
Add methods to erase basic block entry.
...
llvm-svn: 41052
2007-08-13 22:10:29 +00:00
da48cf40db
If NewBB dominates DestBB then DestBB is not part of NewBB's dominance frontier.
...
llvm-svn: 41051
2007-08-13 21:59:17 +00:00
2b40caa861
move assertion into mutex guard, a partial fix for PR1606.
...
llvm-svn: 41050
2007-08-13 20:08:16 +00:00
ccb3611881
When x86 addresses matching exceeds its recursion limit, check to
...
see if the base register is already occupied before assuming it can be
used. This fixes bogus code generation in the accompanying testcase.
llvm-svn: 41049
2007-08-13 20:03:06 +00:00
4e7f673f65
Fix PR1607
...
llvm-svn: 41048
2007-08-13 18:42:37 +00:00
aadc778782
Constant fold: getelementptr (i8* inttoptr (i64 1 to i8*), i32 -1)
...
Into: inttoptr (i64 0 to i8*) -> null
This occurs in the example in PR1602. With this fixed, we now compile
the example in PR1602 into fully "devirtualized" code:
define void @_Z1g1S(%struct.S* noalias %s) {
entry: %tmp131415 = getelementptr %struct.S* %s, i32 0, i32 0 ; <i32 (...)***> [#uses=1] %tmp16 = load i32 (...)*** %tmp131415, align 4 ; <i32 (...)**> [#uses=1]
%tmp26277 = load i32 (...)** %tmp16 ; <i32 (...)*> [#uses=1]
%tmp2829 = bitcast i32 (...)* %tmp26277 to void (%struct.S*)* ; <void (%struct.S*)*> [#uses=1]
tail call void %tmp2829( %struct.S* %s )
ret void
}
This still has the vtable dispatch (as required) but does not have any pointer
to method cruft left.
llvm-svn: 41046
2007-08-13 17:09:08 +00:00
5ca98c657d
Kill info update bugs.
...
llvm-svn: 41043
2007-08-13 07:12:23 +00:00
f258578206
Split loops and do CFG cleanup.
...
llvm-svn: 41029
2007-08-12 07:02:51 +00:00
9f90f965de
Remove unused variables.
...
llvm-svn: 41028
2007-08-12 04:45:36 +00:00
af21e9550e
No need to remove dead range from soon-to-be-dead live interval. Its val# may be out of whack.
...
llvm-svn: 41024
2007-08-12 01:26:19 +00:00
460e34afed
constant fold ptrtoint(inttoptr) with target data when available. This allows
...
us to fold the entry block of PR1602 to false instead of:
br i1 icmp eq (i32 and (i32 ptrtoint (void (%struct.S*)* inttoptr (i64
1 to void (%struct.S*)*) to i32), i32 1), i32 0), label %cond_next, label
%cond_true
llvm-svn: 41023
2007-08-11 23:49:01 +00:00
99c8ee2977
Transform a load from an undef/zero global into an undef/global even if we
...
have complex pointer manipulation going on. This allows us to compile
stuff like this:
__m128i foo(__m128i x){
static const unsigned int c_0[4] = { 0, 0, 0, 0 };
__m128i v_Zero = _mm_loadu_si128((__m128i*)c_0);
x = _mm_unpacklo_epi8(x, v_Zero);
return x;
}
into:
_foo:
xorps %xmm1, %xmm1
punpcklbw %xmm1, %xmm0
ret
llvm-svn: 41022
2007-08-11 18:48:48 +00:00
750b3dfcf5
expand a note
...
llvm-svn: 41021
2007-08-11 18:19:07 +00:00
ee44ab5b5f
With evan's explicit flag representation, hopefully we will finally be
...
able to 3-addressify away stuff like this:
movl %ecx, %eax
decl %eax
llvm-svn: 41020
2007-08-11 18:16:46 +00:00
2dc9f13278
Fix a comment typo noticed by Sandro Magi.
...
llvm-svn: 41018
2007-08-11 15:57:56 +00:00
cdbd82ee37
64-bit SSSE3 ops that use MMX registers don't require 16-byte alignment.
...
Make a 'memop' pattern just for them.
llvm-svn: 41017
2007-08-11 09:52:53 +00:00
05cc486c7b
Code to maintain kill information during register coalescing.
...
llvm-svn: 41016
2007-08-11 00:59:19 +00:00
44e79f8aba
Use subregs to improve any_extend code generation when feasible.
...
llvm-svn: 41013
2007-08-10 22:22:41 +00:00
b372abab14
Increase efficiency of sign_extend_inreg by using subregisters for truncation. As the README suggests sign_extend_subreg is selected to (sext(trunc)).
...
llvm-svn: 41010
2007-08-10 21:48:46 +00:00
f0c236fb8a
Edit README in light of previous LEA16 commit.
...
llvm-svn: 41009
2007-08-10 21:29:05 +00:00
d36d30b53c
Add 2-addr to 3-addr promotion code that allows 32-bit LEA to be used via subregisters when 16-bit LEA is disabled.
...
llvm-svn: 41007
2007-08-10 21:18:25 +00:00
e081928f49
Move isSubRegOf into MRegisterInfo. Fix a missed move elimination in LowerSubregs and add more debugging output there.
...
llvm-svn: 41005
2007-08-10 21:11:55 +00:00
d305c404be
Do not overuse std::string. Pass around char * directly.
...
llvm-svn: 41001
2007-08-10 18:29:32 +00:00
f417c2cc34
Clone loop.
...
llvm-svn: 40998
2007-08-10 18:07:13 +00:00
aa36a43908
Add utility to clone loops.
...
llvm-svn: 40997
2007-08-10 17:59:47 +00:00
5109a88ac3
add Value::getNameStart/getNameLen() accessors.
...
llvm-svn: 40989
2007-08-10 15:34:35 +00:00
a17799a3bd
Fix EXTRACT_ELEMENT, EXTRACT_SUBVECTOR, and EXTRACT_VECTOR_ELT to
...
use an intptr ValueType instead of i32 for the index operand in
getCopyToParts.
llvm-svn: 40987
2007-08-10 14:59:38 +00:00
66011c17d5
propagate struct size and alignment of byval arguments to the DAG
...
llvm-svn: 40986
2007-08-10 14:44:42 +00:00
7014615087
For kicks, I though it would be fun to use the correct opcode.
...
llvm-svn: 40985
2007-08-10 09:00:17 +00:00
2377206923
Adding SSSE3 intrinsics.
...
llvm-svn: 40982
2007-08-10 06:22:27 +00:00
de2aa65877
minor simplifications.
...
llvm-svn: 40981
2007-08-10 06:22:25 +00:00
dd6304f6b1
avoid copying strings.
...
llvm-svn: 40980
2007-08-10 06:17:04 +00:00
9a4761464f
Remove unncessary duplication.
...
llvm-svn: 40979
2007-08-10 00:59:03 +00:00
7bdf4531bb
Calculate exit and start value of true loop and false loop respectively.
...
llvm-svn: 40978
2007-08-10 00:53:35 +00:00
67af6cd7ea
ExitCondition and Induction variable are loop constraints
...
not split condition constraints.
llvm-svn: 40977
2007-08-10 00:33:50 +00:00
2b9fe84b07
unbreak the build
...
llvm-svn: 40976
2007-08-09 23:55:17 +00:00
1115a2b412
Bug fix. ~1U marks the val# dead.
...
llvm-svn: 40975
2007-08-09 23:14:39 +00:00
bdad80977b
Patch 10 for long double. Doing constants right needs expanding ConstantFP
...
to handle values bigger than double. If we assume host==target and host
long double works correctly, this is not too bad, but we don't want to
have that limitation longterm. I could implement accepting double
constants as long double or something like that, which would lead to
incorrect codegen with no errors; the more I think about that the worse
it seems. Rather than do such a hack that would be backed out later,
I'm settling for giving reasonable error messages, for now.
llvm-svn: 40974
2007-08-09 22:51:36 +00:00
f855b626e8
Temporarily backing out this change until we know why some dejagnu tests are failing.
...
llvm-svn: 40973
2007-08-09 22:25:35 +00:00
e32e923a6a
divb / mulb outputs to ah. Under x86-64 it's not legal to read ah if the instruction requires a rex prefix (i.e. outputs to r8b, etc.). So issue shift right by 8 on AX and then truncate it to 8 bits instead.
...
llvm-svn: 40972
2007-08-09 21:59:35 +00:00
a8e4b4bc7b
when we see a unaligned load from an insufficiently aligned global or
...
alloca, increase the alignment of the load, turning it into an aligned load.
This allows us to compile:
#include <xmmintrin.h>
__m128i foo(__m128i x){
static const unsigned int c_0[4] = { 0, 0, 0, 0 };
__m128i v_Zero = _mm_loadu_si128((__m128i*)c_0);
x = _mm_unpacklo_epi8(x, v_Zero);
return x;
}
into:
_foo:
punpcklbw _c_0.5944, %xmm0
ret
.data
.lcomm _c_0.5944,16,4 # c_0.5944
instead of:
_foo:
movdqu _c_0.5944, %xmm1
punpcklbw %xmm1, %xmm0
ret
.data
.lcomm _c_0.5944,16,2 # c_0.5944
llvm-svn: 40971
2007-08-09 19:05:49 +00:00
a05ec4dc52
GR16_ sub-register class should be GR8_, not GR8. That is, it should only be 8-bit registers in 32-bit mode. Ditto for GR32_.
...
llvm-svn: 40970
2007-08-09 18:05:17 +00:00
c339e45274
Update per review comments.
...
llvm-svn: 40965
2007-08-09 17:27:48 +00:00
9b1cc8cac0
Make NonLocal and None const in the right way. :-)
...
llvm-svn: 40961
2007-08-09 04:42:44 +00:00
42e3e5bec1
Traverse loop blocks' terminators to find split candidates.
...
llvm-svn: 40960
2007-08-09 01:39:01 +00:00
ba1a98a4e0
long double 9 of N. This finishes up the X86-32 bits
...
(constants are still not handled). Adds ConvertActions
to control fp-to-fp conversions (these are currently
defaulted for all other targets, so no changes there).
llvm-svn: 40958
2007-08-09 01:04:01 +00:00
f5124b36e4
Fix arguments for some Altivec instructions. From SWB.
...
llvm-svn: 40957
2007-08-09 00:49:19 +00:00
9d09c5ccda
If a target really needs to custom lower constants, it should be allowed
...
to do so.
llvm-svn: 40955
2007-08-08 23:23:31 +00:00
2b21c3c7a8
Add more comments to memdep.
...
llvm-svn: 40953
2007-08-08 22:26:03 +00:00
0183c797c4
Add cost analysis.
...
llvm-svn: 40952
2007-08-08 22:25:28 +00:00
fa788358d5
Make memdep fit in 80 cols.
...
llvm-svn: 40950
2007-08-08 22:01:54 +00:00
0e34ee25ab
Preserve dom info while processing one iteration loop.
...
llvm-svn: 40947
2007-08-08 21:39:47 +00:00
b84d3b1c92
Change the None and NonLocal markers in memdep to be const.
...
llvm-svn: 40946
2007-08-08 21:39:39 +00:00
8abc5c82b7
Clear split info.
...
llvm-svn: 40944
2007-08-08 21:18:27 +00:00
593bf9ceb3
Handle multiple split conditions.
...
llvm-svn: 40941
2007-08-08 21:02:17 +00:00
155533cf73
Make getSTDIN return null if the standard input is empty, as the header file
...
documentation implies and as its uses depend.
llvm-svn: 40939
2007-08-08 20:01:58 +00:00
8609c06956
Allow the filename "-" to be a place holder for stdin. This allows directing
...
stdin through llvm-ld and llvm-link.
llvm-svn: 40938
2007-08-08 19:52:29 +00:00
680862880d
Global values also don't undead-ify pointers in our dead alloca's set.
...
llvm-svn: 40936
2007-08-08 19:12:31 +00:00
ddf4aee543
Make handleEndBlock significantly faster with one trivial improvement,
...
and one hack to avoid hitting a bad case when the alias analysis is imprecise.
llvm-svn: 40935
2007-08-08 18:38:28 +00:00
50df9685b0
Small improvement: if a function doesn't access memory, we don't need to scan
...
it for potentially undeading pointers.
llvm-svn: 40933
2007-08-08 17:58:56 +00:00
52aaabf74d
Add some comments, remove a dead argument, and simplify some control flow.
...
No functionality change.
llvm-svn: 40932
2007-08-08 17:50:09 +00:00
d1fd0db2ae
eliminate redundant conditions from the signless types conversion.
...
llvm-svn: 40927
2007-08-08 16:19:57 +00:00
7574ef3ac4
Handle functions with no name better.
...
llvm-svn: 40926
2007-08-08 16:07:23 +00:00
d771b793fe
Adding kill info to val#.
...
llvm-svn: 40925
2007-08-08 07:03:29 +00:00
785f9986bd
significantly speed up constant folding of calls (and thus all clients that use
...
ConstantFoldInstruction on calls) by avoiding Value::getName(). getName() constructs
and returns an std::string, which does heap allocation stuff. This slightly speeds up
instcombine.
llvm-svn: 40924
2007-08-08 06:55:43 +00:00
415750e132
Speed up updateDFSNumbers with two observations:
...
1. domtree is a tree, not a graph. There is no need to avoid revisiting nodes with a set.
2. the worklist can contain the child iterator pointers so we don't get N^2 rescanning of children.
This speeds up updateDFSNumbers significantly, making it basically free. On the testcase in PR1432,
this speeds up loopsimplify by another 3x, dropping it from the 12th most expensive pass to the to
the 30th. :) It used to be #1 .
llvm-svn: 40923
2007-08-08 06:24:20 +00:00
b17ab03081
A few more small cleanups.
...
llvm-svn: 40922
2007-08-08 06:06:02 +00:00
103947125c
Clean up and bug fix.
...
llvm-svn: 40921
2007-08-08 05:56:18 +00:00
c63d4c2e4e
reimplement dfs number computation to be significantly faster. This speeds up
...
natural loop canonicalization (which does many cfg xforms) by 4.3x, for
example. This also fixes a bug in postdom dfnumber computation.
llvm-svn: 40920
2007-08-08 05:51:24 +00:00
0aecf0ebef
First round of cleanups from Chris' feedback.
...
llvm-svn: 40919
2007-08-08 04:52:29 +00:00
a8c2f38617
- Each val# can have multiple kills.
...
- Fix some minor bugs related to special markers on val# def. ~0U means
undefined, ~1U means dead val#.
llvm-svn: 40916
2007-08-08 03:00:28 +00:00
68de1ae816
Embrace patch review feedback.
...
llvm-svn: 40915
2007-08-08 01:51:27 +00:00
c236617ea0
Remove a dead assertion.
...
llvm-svn: 40914
2007-08-08 01:00:21 +00:00
0d0fee269a
- LiveInterval value#'s now have 3 components: def instruction #,
...
kill instruction #, and source register number (iff the value# is defined by a
copy).
- Now def instruction # is set for every value#, not just for copy defined ones.
- Update some outdated code related inactive live ranges.
- Kill info not yet set. That's next patch.
llvm-svn: 40913
2007-08-07 23:49:57 +00:00
c7e53bdcfd
Fix new compare instruction's signness. Caught by Chris during review.
...
llvm-svn: 40912
2007-08-07 23:17:52 +00:00
0cc1a76283
Don't insert nearly as many redundant phi nodes.
...
llvm-svn: 40909
2007-08-07 23:12:31 +00:00
4e7ff3593c
Fix spelling of mtvscr and mfvscr.
...
llvm-svn: 40908
2007-08-07 23:08:00 +00:00
a47f7d7cfd
Long double patch 8 of N: make it partially work in
...
SSE mode (all but conversions <-> other FP types, I think):
>>Do not mark all-80-bit operations as "Requires[FPStack]"
(which really means "not SSE").
>>Refactor load-and-extend to facilitate this.
>>Update comments.
>>Handle long double in SSE when computing FP_REG_KILL.
llvm-svn: 40906
2007-08-07 20:29:26 +00:00
19211b6528
Use eraseFromParent().
...
llvm-svn: 40903
2007-08-07 17:45:35 +00:00
bacdbaa0da
Fix comment typo
...
llvm-svn: 40898
2007-08-07 16:52:03 +00:00
816a190cdf
Fix GLIBCXX_DEBUG error triggered by incrementing erased iterator.
...
llvm-svn: 40897
2007-08-07 16:44:38 +00:00
99905f16f8
Add a missing forward declaration.
...
llvm-svn: 40896
2007-08-07 16:34:05 +00:00
f7c6effc44
Initial JIT support for ARM by Raul Fernandes Herbster.
...
llvm-svn: 40887
2007-08-07 01:37:15 +00:00
57c6ac5fe5
Long double patch 7 of N, unless I lost count:).
...
Last x87 bits for full functionality (not
thoroughly tested, and long doubles do not work
in SSE modes at all - use -mcpu=i486 for now)
llvm-svn: 40886
2007-08-07 01:17:37 +00:00
68c6732d2c
Clean up a bunch of caching stuff in memdep. This reduces the time to run GVN
...
on 403.gcc from ~15s to ~10s.
llvm-svn: 40884
2007-08-07 00:33:45 +00:00
c70106cb30
Begin loop index split pass.
...
llvm-svn: 40883
2007-08-07 00:25:56 +00:00
4898513d96
Improve the accuracy of memdep for determining the dependencies of loads.
...
This brings GVN to parity with GCSE+LoadVN.
llvm-svn: 40882
2007-08-06 23:26:03 +00:00
a010822b45
Replace 4-line function with 10-line version per review comment.
...
llvm-svn: 40881
2007-08-06 22:10:35 +00:00
d1822ea7d1
Move lengthy conditional down 1 level per review comment.
...
llvm-svn: 40878
2007-08-06 21:48:35 +00:00
75169a82d6
Get X86 long double calling convention to work
...
(on Darwin, anyway). Fix some table omissions for
LD arithmetic.
llvm-svn: 40877
2007-08-06 21:31:06 +00:00
f72a2db072
regenerate
...
llvm-svn: 40875
2007-08-06 21:00:46 +00:00
6a5a2620ba
Fix PR1577, a crash on invalid bug.
...
llvm-svn: 40874
2007-08-06 21:00:37 +00:00
bebc3bb2e3
This resolves a regression of BasicAA which failed to find any memory information for overloaded intrinsics (PR1600). This resolves that issue, and improves the matching scheme to use a BitVector rather than a binary search.
...
llvm-svn: 40872
2007-08-06 20:57:16 +00:00
8052019a20
It's safe to fold not of fcmp.
...
llvm-svn: 40870
2007-08-06 20:04:16 +00:00
e279fd6ce8
Make 80-bit store maintain simulated FP stack correctly.
...
llvm-svn: 40868
2007-08-06 19:50:32 +00:00
96606cec20
Let scalar-evolution analyze loops with an unsigned comparison for the exit
...
condition. Fixes 1597.
llvm-svn: 40867
2007-08-06 19:21:00 +00:00
b9819f3a8b
Don't assume it's safe to transform a loop just because it's dominated by any
...
comparison. Fixes bug 1598.
llvm-svn: 40866
2007-08-06 18:33:46 +00:00
079ebcfae5
Fix a regression compiling 2005-05-11-Popcount-ffs-fls with the CBE,
...
introduced by chandler's patch.
llvm-svn: 40864
2007-08-06 16:36:18 +00:00
2e5fb9f71e
Implement review feedback. No functionality change.
...
llvm-svn: 40863
2007-08-06 16:33:56 +00:00
77b2accbca
Make this code more efficient.
...
llvm-svn: 40861
2007-08-06 15:09:17 +00:00
c7ba225705
remove some dead lines
...
llvm-svn: 40859
2007-08-06 06:21:06 +00:00
67f1c3335c
1. Random tidiness cleanups
...
2. Make domtree printing print dfin/dfout #'s
3. Fix the Transforms/LoopSimplify/2004-04-13-LoopSimplifyUpdateDomFrontier.ll failure from last night (in DominanceFrontier::splitBlock).
w.r.t. #3 , my patches last night happened to expose the bug, but this
has been broken since Owen's r35839 patch to LoopSimplify. The code
was subsequently moved over from LoopSimplify into Dominators, carrying
the latent bug. Fun stuff.
llvm-svn: 40858
2007-08-06 06:19:47 +00:00
446282ae3d
Fix minor doxygen nits.
...
llvm-svn: 40854
2007-08-05 20:06:04 +00:00
d959cfc882
Silence some warnings from doxygen about @param argument name not matching the
...
actual argument name of the documented function.
llvm-svn: 40851
2007-08-05 19:35:22 +00:00
f13bcdc4a4
Escape some escapes that confuse doxygen.
...
llvm-svn: 40850
2007-08-05 19:33:11 +00:00
05d55b396c
Fix a doxygen directive.
...
llvm-svn: 40849
2007-08-05 19:27:01 +00:00
b1888e73ad
Long double patch 4 of N: initial x87 implementation.
...
Lots of problems yet but some simple things work.
llvm-svn: 40847
2007-08-05 18:49:15 +00:00
6299a45277
shorten this name
...
llvm-svn: 40843
2007-08-05 18:45:33 +00:00
f0da7975ea
at the end of instcombine, explicitly clear WorklistMap.
...
This shrinks it down to something small. On the testcase
from PR1432, this speeds up instcombine from 0.7959s to 0.5000s,
(59%)
llvm-svn: 40840
2007-08-05 08:47:58 +00:00
6493fc79fe
Upgrade BasicAliasAnalysis::getModRefBehavior to not call Value::getName,
...
which dynamically allocates the string result. This speeds up dse on the
testcase from PR1432 from 0.3781s to 0.1804s (2.1x).
llvm-svn: 40838
2007-08-05 07:50:06 +00:00
44f7d3aa0b
When clearing a SmallPtrSet, if the set had a huge capacity, but the
...
contents of the set were small, deallocate and shrink the set. This
avoids having us to memset as much data, significantly speeding up
some pathological cases. For example, this speeds up the verifier
from 0.3899s to 0.0763 (5.1x) on the testcase from PR1432 in a
release build.
llvm-svn: 40837
2007-08-05 07:32:14 +00:00
d2eb0c9653
Fix an iterator invalidation bug I induced.
...
llvm-svn: 40830
2007-08-05 00:24:30 +00:00
0e8f85f87e
Switch some std::sets to SmallPtrSet. This speeds up
...
domtree by 10% and postdomtree by 17%
llvm-svn: 40829
2007-08-05 00:15:57 +00:00
5f5585c432
Switch DomTreeNode::assignDFSNumber from using a std::set to using
...
a smallptrset. This speeds up domtree by about 15% and postdomtree by 20%.
llvm-svn: 40828
2007-08-05 00:10:08 +00:00
77e05fe20d
Switch the internal "Info" map from an std::map to a DenseMap. This
...
speeds up idom by about 45% and postidom by about 33%.
Some extra precautions must be taken not to invalidate densemap iterators.
llvm-svn: 40827
2007-08-05 00:02:00 +00:00
bd0fe01daf
switch the DomTreeNodes and IDoms maps in idom/postidom to a
...
DenseMap instead of an std::map. This speeds up postdomtree
by about 25% and domtree by about 23%. It also speeds up clients,
for example, domfrontier by 11%, mem2reg by 4% and ADCE by 6%.
llvm-svn: 40826
2007-08-04 23:48:07 +00:00
edce70d2fe
rewrite the code used to construct pruned SSA form with the IDF method.
...
In the old way, we computed and inserted phi nodes for the whole IDF of
the definitions of the alloca, then computed which ones were dead and
removed them.
In the new method, we first compute the region where the value is live,
and use that information to only insert phi nodes that are live. This
eliminates the need to compute liveness later, and stops the algorithm
from inserting a bunch of phis which it then later removes.
This speeds up the testcase in PR1432 from 2.00s to 0.15s (14x) in a
release build and 6.84s->0.50s (14x) in a debug build.
llvm-svn: 40825
2007-08-04 22:50:14 +00:00
d91576b01e
Factor out a whole bunch of code into it's own method.
...
llvm-svn: 40824
2007-08-04 21:14:29 +00:00
4e1b4140eb
Use getNumPreds(BB) instead of computing them manually. This is a very small but
...
measurable speedup.
llvm-svn: 40823
2007-08-04 21:06:15 +00:00
b6a4ba808b
Change the rename pass to be "tail recursive", only adding N-1 successors
...
to the worklist, and handling the last one with a 'tail call'. This speeds
up PR1432 from 2.0578s to 2.0012s (2.8%)
llvm-svn: 40822
2007-08-04 20:40:27 +00:00
840259c8d3
cache computation of #preds for a BB. This speeds up
...
mem2reg from 2.0742->2.0522s on PR1432.
llvm-svn: 40821
2007-08-04 20:24:50 +00:00
050bac4bed
reserve operand space for phi nodes when we insert them.
...
llvm-svn: 40820
2007-08-04 20:14:34 +00:00
9318785df5
use continue to avoid nesting, no functionality change.
...
llvm-svn: 40819
2007-08-04 20:07:06 +00:00
6b04ecbaf9
Promoting allocas with the 'single store' fastpath is
...
faster than with the 'local to a block' fastpath. This speeds
up PR1432 from 2.1232 to 2.0686s (2.6%)
llvm-svn: 40818
2007-08-04 20:03:23 +00:00
4a930f9444
When PromoteLocallyUsedAllocas promoted allocas, it didn't remember
...
to increment NumLocalPromoted, and didn't actually delete the
dead alloca, leading to an extra iteration of mem2reg.
llvm-svn: 40817
2007-08-04 20:01:43 +00:00
63c039780c
std::map -> DenseMap
...
llvm-svn: 40816
2007-08-04 19:52:20 +00:00
20f0811fc0
Clean up comments, fix up some confusing code logic.
...
Predsimplify fails llvm-gcc bootstrap.
llvm-svn: 40815
2007-08-04 18:45:32 +00:00
7d382f7680
fix a logic bug where we wouldn't promote single store allocas if the
...
stored value was a non-instruction value. Doh.
This increase the # single store allocas from 8982 to 9026, and
speeds up mem2reg on the testcase in PR1432 from 2.17 to 2.13s.
llvm-svn: 40813
2007-08-04 02:45:02 +00:00
1b215f0661
When we do the single-store optimization, delete both the store
...
and the alloca so they don't get reprocessed.
This speeds up PR1432 from 2.20s to 2.17s.
llvm-svn: 40812
2007-08-04 02:38:38 +00:00
862f125457
Three improvements:
...
1. Check for revisiting a block before checking domination, which is faster.
2. If the stored value isn't an instruction, we don't have to check for domination.
3. If we have a value used in the same block more than once, make sure to remove the
block from the UsingBlocks vector. Not doing so forces us to go through the slow
path for the alloca.
The combination of these improvements increases the number of allocas on the fastpath
from 8935 to 8982 on PR1432. This speeds it up from 2.90s to 2.20s (31%)
llvm-svn: 40811
2007-08-04 02:32:22 +00:00
ae1e00eb36
switch from using a std::set to using a SmallPtrSet. This speeds up the
...
testcase in PR1432 from 6.33s to 2.90s (2.22x)
llvm-svn: 40810
2007-08-04 02:21:22 +00:00
9181801bb7
In mem2reg, when handling the single-store case, make sure to remove
...
a using block from the list if we handle it. Not doing this caused us
to not be able to promote (with the fast path) allocas which have uses (whoops).
This increases the # allocas hitting this fastpath from 4042 to 8935 on the
testcase in PR1432, speeding up mem2reg by 2.6x
llvm-svn: 40809
2007-08-04 02:15:24 +00:00
450f95c857
Regenerating.
...
llvm-svn: 40808
2007-08-04 01:56:21 +00:00
7132e00de7
This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future.
...
This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported.
llvm-svn: 40807
2007-08-04 01:51:18 +00:00
886a41a007
split rewriting of single-store allocas into its own
...
method.
llvm-svn: 40806
2007-08-04 01:47:41 +00:00
3cede09c67
refactor some code to shrink PromoteMem2Reg::run a bit
...
llvm-svn: 40805
2007-08-04 01:41:18 +00:00
d524537fe9
add a typedef, no other change.
...
llvm-svn: 40804
2007-08-04 01:19:38 +00:00
df138be527
avoid an unneeded vector copy. This speeds up mem2reg on the testcase
...
in PR1432 by 6%
llvm-svn: 40803
2007-08-04 01:07:49 +00:00
fd838f0770
make RenamePassWorkList a local var instead of an ivar.
...
llvm-svn: 40802
2007-08-04 01:04:40 +00:00
b0c7585f2d
Make x86 long double alignment 32 for everything but
...
Darwin (which makes size within a struct==96)
llvm-svn: 40796
2007-08-03 22:46:15 +00:00
65c8a9ee9a
long double patch 3 of N. Add to MVT.
...
llvm-svn: 40793
2007-08-03 20:51:37 +00:00
c5283ecd6f
long double patch 2 of N. Handle it in TargetData.
...
(I've tried to get the info right for all targets,
but I'm not expert on all of them - check yours.)
llvm-svn: 40792
2007-08-03 20:20:50 +00:00
2d19aae4ca
Fix a subtle miscompilation. This allows 197.parser to be compiled correctly.
...
llvm-svn: 40791
2007-08-03 19:59:35 +00:00
774761c503
Fix a subtle iterator invalidation bug in a recursive algorithm.
...
llvm-svn: 40776
2007-08-03 11:03:26 +00:00
ff4c3be741
Long double, part 1 of N. Support in IR.
...
llvm-svn: 40774
2007-08-03 01:03:46 +00:00
99fbf13dc3
add an observation
...
llvm-svn: 40772
2007-08-03 00:17:42 +00:00
1f70816c73
Fix an accidental commit.
...
llvm-svn: 40758
2007-08-02 21:33:36 +00:00
5f6a9da530
More explicit keywords.
...
llvm-svn: 40757
2007-08-02 21:21:54 +00:00
8932bff7fe
Fix the alignment requirements of several unpck and shuf instructions.
...
Generalize isPSHUFDMask and add a unary SHUFPD pattern so that SHUFPD's
memory operand alignment can be tested as well, with a fix to avoid
breaking MMX's use of isPSHUFDMask.
llvm-svn: 40756
2007-08-02 21:17:01 +00:00
4d436e2b7d
Fix pastos in vector arithmetic intrinsics.
...
llvm-svn: 40754
2007-08-02 21:06:40 +00:00
a8ba659976
Fix 80 col. violations.
...
llvm-svn: 40751
2007-08-02 18:20:52 +00:00
9699a6ea03
Fix 80 col. violations.
...
llvm-svn: 40750
2007-08-02 18:16:06 +00:00
e3590584b9
Fix 80 col. violations.
...
llvm-svn: 40749
2007-08-02 18:11:11 +00:00
3ffe7187db
don't redefine a parameter
...
llvm-svn: 40748
2007-08-02 18:08:16 +00:00
0ac1fc8ac1
Fix a bug that was causing several miscompilations on SPEC.
...
llvm-svn: 40746
2007-08-02 17:56:05 +00:00
531f260ac0
Implement review feedback.
...
llvm-svn: 40745
2007-08-02 17:52:00 +00:00
dc2cf228ce
Replacing a cast with another one does not reduce the number of
...
casts in the input.
llvm-svn: 40741
2007-08-02 17:23:38 +00:00
222b214be7
Disable an xform that causes an infinite loop. This fixes PR1594
...
llvm-svn: 40739
2007-08-02 16:56:32 +00:00
2740694450
wrap some long lines. Major offenders that are left include
...
gvn, gvnpre, dse, and predsimplify. To see these, use:
make check-line-length
llvm-svn: 40738
2007-08-02 16:53:43 +00:00
a882328e61
Update dominator info for the middle blocks created while spliting
...
exit edge to preserve LCSSA.
Fix dominance frontier update during loop unswitch. This fixes PR 1589, again
llvm-svn: 40737
2007-08-02 15:25:57 +00:00
fa3eeeedc0
Mark the SSE and MMX load instructions that
...
X86InstrInfo::isReallyTriviallyReMaterializable knows how to handle
with the isReMaterializable flag so that it is given a chance to handle
them. Without hoisting constant-pool loads from loops this isn't very
visible, though it does keep CodeGen/X86/constant-pool-remat-0.ll from
making a copy of the constant pool on the stack.
llvm-svn: 40736
2007-08-02 14:27:55 +00:00
b0418fc607
Enhance instcombine to be more aggressive about folding casts of
...
operations of casts. This implements InstCombine/zext-fold.ll
llvm-svn: 40726
2007-08-02 06:11:14 +00:00
473c5111c3
Switch some multiplication instructions over to the new scheme for testing.
...
llvm-svn: 40723
2007-08-02 05:48:35 +00:00
358c3d1dac
Do not emit copies for physical register output if it's not used.
...
llvm-svn: 40722
2007-08-02 05:29:38 +00:00
d7cb625a9e
Fix PR1575 and test/Transforms/CondProp/2007-08-01-InvalidRead.ll
...
llvm-svn: 40720
2007-08-02 04:47:05 +00:00
5b80ecbcf5
Style police: Expand the tabs to spaces!
...
llvm-svn: 40712
2007-08-02 02:22:46 +00:00
1a80201426
Teach BasicAA about noalias parameter attributes, but do it correctly this time.
...
llvm-svn: 40711
2007-08-02 01:18:14 +00:00
c5549fc3a0
Instead of adding copyfromreg's to handle physical definitions. Now isel can
...
simply specify them as results and let scheduledag handle them. That
is, instead of
SDOperand Flag = DAG.getTargetNode(Opc, MVT::i32, MVT::Flag, ...)
SDOperand Result = DAG.getCopyFromReg(Chain, X86::EAX, MVT::i32, Flag)
Just write:
SDOperand Result = DAG.getTargetNode(Opc, MVT::i32, MVT::i32, ...)
And let scheduledag emit the move from X86::EAX to a virtual register.
llvm-svn: 40710
2007-08-02 00:28:15 +00:00
d3d92890fc
Can't handle offset and scale if rip-relative addressing is to be used.
...
llvm-svn: 40703
2007-08-01 23:46:47 +00:00
9a3b2b09ad
Mac OS X X86-64 low 4G address not available.
...
llvm-svn: 40702
2007-08-01 23:46:10 +00:00
763cdfd371
Mac OS X X86-64 low 4G address not available.
...
llvm-svn: 40701
2007-08-01 23:45:51 +00:00
34890b2f27
Undo previous check-in.
...
llvm-svn: 40698
2007-08-01 23:24:50 +00:00
58c3c30921
Some out operands were incorrectly specified as input operands.
...
llvm-svn: 40697
2007-08-01 23:07:38 +00:00
561b0c29a3
Update dominator info for the middle blocks created while spliting
...
exit edge to preserve LCSSA.
Fix dominance frontier update during loop unswitch. This fixes PR 1589.
llvm-svn: 40695
2007-08-01 22:23:50 +00:00
c321e5e272
Make non-local memdep not be recursive, and fix a bug on 403.gcc that this exposed.
...
llvm-svn: 40692
2007-08-01 22:01:54 +00:00
da549ece5c
Missing Requires.
...
llvm-svn: 40691
2007-08-01 21:42:24 +00:00
6f2ce6b842
Be more precise.
...
llvm-svn: 40689
2007-08-01 20:22:37 +00:00
d8ded48468
Bugs: missing partial uses and redundant partial defs.
...
llvm-svn: 40688
2007-08-01 20:18:21 +00:00
0db4418a5f
Expand unaligned loads/stores when the target doesn't support them. (PR1548)
...
llvm-svn: 40682
2007-08-01 19:34:21 +00:00
34d442f274
More explicit keywords.
...
llvm-svn: 40673
2007-08-01 15:32:29 +00:00
d541c831c3
Change a .size directive to use a tab instead of a space, for consistency.
...
llvm-svn: 40672
2007-08-01 14:42:30 +00:00
10e52eddb3
Rename FastDSE to just DSE.
...
llvm-svn: 40668
2007-08-01 06:36:51 +00:00
e4a374812b
Move FastDSE in to DeadStoreElimination.
...
llvm-svn: 40667
2007-08-01 06:30:51 +00:00
4894e6d8bc
Remove old DSE.
...
llvm-svn: 40666
2007-08-01 06:30:10 +00:00
Anton Korobeynikov