60f4854c76
Remove trailing whitespace
...
llvm-svn: 89110
2009-11-17 17:53:56 +00:00
724d8a45c1
Update a comment, now that tail duplication happens after other branch
...
folding optimizations.
llvm-svn: 89109
2009-11-17 17:40:31 +00:00
14b25eb87b
Set Inst{15-12} (Rd/Rt) to 0b1111 (PC) for BR_JTadd, BR_JTr, and BR_JTm to
...
distinguish between them and the more generic instructions (add, mov, and ldr).
llvm-svn: 89108
2009-11-17 17:17:50 +00:00
bd22f1965d
Perform tail duplication only once, after tail merging is complete.
...
It was too difficult to keep the heuristics for merging and duplication
consistent.
llvm-svn: 89105
2009-11-17 17:06:18 +00:00
84efacfaad
Revert 89021. It's miscompiling llvm-gcc driver driver at -O0.
...
llvm-svn: 89082
2009-11-17 09:55:52 +00:00
5392cc9d14
Re-apply 89011. It's not to be blamed.
...
llvm-svn: 89081
2009-11-17 09:51:18 +00:00
05938e819b
Revert 89011. Buildbot thinks it might be breaking stuff.
...
llvm-svn: 89076
2009-11-17 09:20:28 +00:00
a1c09d674e
Remove VISIBILITY_HIDDEN from the classes in this directory. Fixes bug 5507.
...
llvm-svn: 89075
2009-11-17 09:17:08 +00:00
b7993d61f2
Revert r88939.
...
llvm-svn: 89066
2009-11-17 08:11:44 +00:00
7efd07fd9d
Fail less mysteriously; inform the user that their LLVM was not built with
...
libffi support and that the interpreter can't call external functions without
it. Patch by Timo Juhani Lindfors! Fixes PR5466.
llvm-svn: 89062
2009-11-17 07:52:09 +00:00
759d72dc8e
Fix a race condition in the Timer class.
...
llvm-svn: 89056
2009-11-17 07:06:10 +00:00
bc0020174b
Refactor the code that creates the "dot-label" difference. This may be used in
...
more than one place. No intended functionality change.
llvm-svn: 89024
2009-11-17 01:23:53 +00:00
af1ad30a23
When moving a block for table jumps, make sure the prior block terminator
...
is analyzable so it can be updated. If it's not, be safe and don't move the
block.
llvm-svn: 89022
2009-11-17 01:21:04 +00:00
9f0d55d8d8
Enable -split-phi-edges by default
...
llvm-svn: 89021
2009-11-17 01:07:22 +00:00
d33400e636
MOV64rm should be marked isReMaterializable.
...
llvm-svn: 89019
2009-11-17 00:55:55 +00:00
82e80019a5
Remove the optimizations that convert BRCOND and BR_CC into
...
unconditional branches or fallthroghes. Instcombine/SimplifyCFG
should be simplifying branches with known conditions.
This fixes some problems caused by these transformations not
updating the MachineBasicBlock CFG.
llvm-svn: 89017
2009-11-17 00:47:23 +00:00
12144a2348
Remove debug info attached with an instruction.
...
llvm-svn: 89016
2009-11-17 00:47:06 +00:00
7c57c41d5f
In GlobalVariable::setInitializer, assert that the initializer has the
...
right type.
llvm-svn: 89014
2009-11-17 00:43:13 +00:00
ce28f6f478
A few more instructions that should be marked re-materializable.
...
llvm-svn: 89011
2009-11-17 00:23:22 +00:00
18183b6d8e
Set Rm bits of BX_RET to 0b1110 (R14); and set condition code bits of BRIND to
...
0b1110 (ALways). This is so that the disassembler decoder can distinguish among
BX_RET, BRIND, and BXr9.
llvm-svn: 89000
2009-11-16 23:57:56 +00:00
9b5eea30f7
Initialize the new AsmPrinterFlags field to 0, fixing uses of
...
uninitialized memory.
llvm-svn: 88985
2009-11-16 22:49:38 +00:00
10d3604a9e
Make X86-64 in the Large model always emit 64-bit calls.
...
The large code model is documented at
http://www.x86-64.org/documentation/abi.pdf and says that calls should
assume their target doesn't live within the 32-bit pc-relative offset
that fits in the call instruction.
To do this, we turn off the global-address->target-global-address
conversion in X86TargetLowering::LowerCall(). The first attempt at
this broke the lazy JIT because it can separate the movabs(imm->reg)
from the actual call instruction. The lazy JIT receives the address of
the movabs as a relocation and needs to record the return address from
the call; and then when that call happens, it needs to patch the
movabs with the newly-compiled target. We could thread the call
instruction into the relocation and record the movabs<->call mapping
explicitly, but that seems to require at least as much new
complication in the code generator as this change.
To fix this, we make lazy functions _always_ go through a call
stub. You'd think we'd only have to force lazy calls through a stub on
difficult platforms, but that turns out to break indirect calls
through a function pointer. The right fix for that is to distinguish
between calls and address-of operations on uncompiled functions, but
that's complex enough to leave for someone else to do.
Another attempt at this defined a new CALL64i pseudo-instruction,
which expanded to a 2-instruction sequence in the assembly output and
was special-cased in the X86CodeEmitter's emitInstruction()
function. That broke indirect calls in the same way as above.
This patch also removes a hack forcing Darwin to the small code model.
Without far-call-stubs, the small code model requires things of the
JITMemoryManager that the DefaultJITMemoryManager can't provide.
Thanks to echristo for lots of testing!
llvm-svn: 88984
2009-11-16 22:41:33 +00:00
f25ef4ffb0
- Check memoperand alignment instead of checking stack alignment. Most load / store folding instructions are not referencing spill stack slots.
...
- Mark MOVUPSrm re-materializable.
llvm-svn: 88974
2009-11-16 21:56:03 +00:00
f3d7c08e34
Revert r88939.
...
llvm-svn: 88973
2009-11-16 21:53:40 +00:00
a3ce7828b2
Fix an expensive-checks error.
...
The Mask and LHSMask may not be of the same size, so don't do the
transformation if they're different.
llvm-svn: 88972
2009-11-16 21:52:23 +00:00
56ee15c162
Make the pass class name more explicit.
...
llvm-svn: 88964
2009-11-16 21:13:22 +00:00
544b15cbc3
make pass name a bit more clear
...
llvm-svn: 88961
2009-11-16 21:03:58 +00:00
93f529d514
Sink a #include <map> to where it's actually needed.
...
llvm-svn: 88956
2009-11-16 20:40:47 +00:00
6b3f32e6d7
Fix a typo in a comment.
...
llvm-svn: 88953
2009-11-16 20:35:59 +00:00
44724c4122
Fix a comment.
...
llvm-svn: 88940
2009-11-16 19:33:27 +00:00
2ffd9935a1
Add VISIBILITY_HIDDEN marker.
...
llvm-svn: 88939
2009-11-16 19:20:48 +00:00
9785e5914f
Simplify thumb2 jump table adjustments. Remove unnecessary calculation and
...
usage of block sizes and offsets.
llvm-svn: 88935
2009-11-16 18:58:52 +00:00
87b0f0d95c
clarify comment
...
llvm-svn: 88933
2009-11-16 18:55:47 +00:00
1a8ea98b76
Fix some comments.
...
llvm-svn: 88932
2009-11-16 18:54:08 +00:00
3794ec2519
Whitespace: be consistent with pointer syntax.
...
llvm-svn: 88929
2009-11-16 18:08:46 +00:00
699f5b9a0a
Clean up whitespace.
...
llvm-svn: 88927
2009-11-16 17:56:13 +00:00
9c148c2163
back off for a bit. tracking down weirdness
...
llvm-svn: 88919
2009-11-16 17:17:48 +00:00
47d5e333ff
Analyze has to be before checking the condition, obviously. Properly construct an iterator for prior.
...
llvm-svn: 88917
2009-11-16 17:10:56 +00:00
25905c8336
Support spill comments.
...
Have the asm printer emit a comment if an instruction is a spill or
reload and have the spiller mark copies it introdues so the asm printer
can also annotate those.
llvm-svn: 88911
2009-11-16 15:12:23 +00:00
9649e6085d
BuildIntCast takes an additional parameter, isSigned.
...
llvm-svn: 88910
2009-11-16 13:15:28 +00:00
e5de4a9ad6
CreateIntCast takes an "isSigned" parameter. Pass "true" for it, rather than
...
a name.
llvm-svn: 88908
2009-11-16 12:32:28 +00:00
00e87d19f5
Special case FixedStackPseudoSourceValueVal as well. Do we really need to differentiate PseudoSourceValueVal from FixedStackPseudoSourceValueVal at this level?
...
llvm-svn: 88902
2009-11-16 07:10:36 +00:00
597f7b6ee3
Check if subreg index is zero.
...
llvm-svn: 88899
2009-11-16 06:31:49 +00:00
11bf4493d4
For some targets, a copy can use a register multiple times, e.g. ppc.
...
llvm-svn: 88895
2009-11-16 05:52:06 +00:00
5bf807688e
Disable ldc1/sdc1 instructions for mips1 targets.
...
llvm-svn: 88887
2009-11-16 04:35:29 +00:00
537e409c58
- Fix a small bug while handling target constant pools (one param was missing).
...
- Add a smarter constant pool loading, instead of:
lui $2, %hi($CPI1_0)
addiu $2, $2, %lo($CPI1_0)
lwc1 $f0, 0($2)
Generate:
lui $2, %hi($CPI1_0)
lwc1 $f0, %lo($CPI1_0)($2)
llvm-svn: 88886
2009-11-16 04:33:42 +00:00
e58c05780e
typo spotted by duncan.
...
llvm-svn: 88884
2009-11-16 03:51:42 +00:00
01f31c0a48
Fixes the bug exposed by Anton's test case in PR 5495:
...
Make sure when ProcessImplicitDefs removes a copy which kills its source reg that it
removes the copy from said reg's Kills list.
llvm-svn: 88881
2009-11-16 02:07:31 +00:00
968bd90f88
Fix for the original bug in PR5495 - Look at uses as well as defs when determining the PHI-copy insert point.
...
- Patch by Andrew Canis!
llvm-svn: 88880
2009-11-16 02:00:09 +00:00
01c1cae34d
Detect need for autoalignment of the stack earlier to catch spills more
...
conservatively. eliminateFrameIndex() machinery adjust to handle addr mode
6 (vld1/vst1) used for spills. Fix tests to expect aligned Q-reg spilling
llvm-svn: 88874
2009-11-15 21:45:34 +00:00
74ae3e5b0e
set the def of the VLD1q64 properly
...
llvm-svn: 88873
2009-11-15 21:05:07 +00:00
7735878591
teach LVI to infer edge information from switch instructions.
...
This allows JT to eliminate a ton of infeasible edges when
handling code like the templates in PatternMatch.h
llvm-svn: 88869
2009-11-15 20:02:12 +00:00
b0c0a0df3e
fix a logic error that would cause LVI-JT to miscompile
...
some conditionals
llvm-svn: 88868
2009-11-15 20:01:24 +00:00
2c708562f5
implement the first stab at caching queries. This isn't correct
...
(because the invalidation logic is missing) but LVI isn't enabled
by default anyway.
llvm-svn: 88867
2009-11-15 20:00:52 +00:00
af025d3f6e
refactor a bunch of code forming the new LazyValueInfoCache
...
and LVIQuery classes, no functionality change.
llvm-svn: 88866
2009-11-15 19:59:49 +00:00
9d9812a636
make PRE of loads preserve the alignment of the moved load instruction.
...
llvm-svn: 88865
2009-11-15 19:58:31 +00:00
5f037b6439
fix a bug handling 'not x' when x is undef.
...
llvm-svn: 88864
2009-11-15 19:57:43 +00:00
ef4ea9a2a9
Add a complex missed optimization opportunity I came across while investigating
...
bug 5438.
llvm-svn: 88855
2009-11-15 17:51:23 +00:00
e3f3ca70e6
Add PSP OS Target to Triple, Credit to Bruno Cardoso Lopes.
...
llvm-svn: 88849
2009-11-15 10:18:17 +00:00
95148689c9
Revert r88830 and r88831 which appear to have caused a selfhost buildbot some
...
grief. I suspect this patch merely exposed a bug else.
llvm-svn: 88841
2009-11-15 07:47:32 +00:00
e29fa4c7a1
Teach instcombine to look for booleans in wider integers when it encounters a
...
zext(icmp). It may be able to optimize that away. This fixes one of the cases
in PR5438.
llvm-svn: 88830
2009-11-15 05:55:17 +00:00
6da915ac86
Added an assert to the PBQP allocator to catch infinite cost solutions which might otherwise lead to miscompilations.
...
llvm-svn: 88829
2009-11-15 04:39:51 +00:00
18f845fccd
Remove bogus corei7 and atom entries, the family was incorrect.
...
llvm-svn: 88818
2009-11-14 22:04:42 +00:00
397235f11c
Fill out X86 table, although we are missing lots of names for things. We now
...
properly detect my Xeon box though.
llvm-svn: 88814
2009-11-14 21:36:19 +00:00
d90a9a04f3
Report the detected host CPU in --version.
...
llvm-svn: 88813
2009-11-14 21:36:07 +00:00
e07594df45
cleanup.
...
llvm-svn: 88812
2009-11-14 21:33:37 +00:00
ae84426ed8
Do not merge jump tables this early. Branch folding will do any necessary
...
merges, and until then, it's useful to keep the tables separate for ease
of manipulation.
llvm-svn: 88806
2009-11-14 20:15:03 +00:00
43d2108546
Cleanup flow, and only update the jump table we're analyzing when replacing a destination MBB.
...
llvm-svn: 88805
2009-11-14 20:10:18 +00:00
9c8609ea1c
Add function to replace a destination MBB in a single jump table
...
llvm-svn: 88804
2009-11-14 20:09:13 +00:00
d5f2745965
Add XCore support for arbitrary-sized aggregate returns.
...
llvm-svn: 88802
2009-11-14 19:33:35 +00:00
fd0c7bae2a
Temporary disable the error - it seems to be too conservative.
...
llvm-svn: 88800
2009-11-14 18:01:41 +00:00
8c19a8f17b
Implement DISABLE_INLINE for MSVC. This required changing the position in all
...
forward declaration and patching tblgen to emit it right. Patch by Amine Khaldi!
llvm-svn: 88798
2009-11-14 16:37:18 +00:00
241d01b590
Add llvm::sys::getHostCPUName, for detecting the LLVM name for the host CPU.
...
- This is an initial step towards -march=native support in Clang, and towards
eliminating host dependencies in the targets. See PR5389.
- Patch by Roman Divacky!
llvm-svn: 88768
2009-11-14 10:09:12 +00:00
7935bcb0fe
Remove LLVMContext from reassociate. It was threaded through every function but
...
ultimately never used.
llvm-svn: 88763
2009-11-14 07:25:54 +00:00
d03742a122
revert 88761 as it fails builds.
...
llvm-svn: 88762
2009-11-14 07:22:25 +00:00
8f9c22646b
Fix debug info crashes for PIC16.
...
llvm-svn: 88761
2009-11-14 06:19:49 +00:00
c53e2ecf02
Teach BasicAA that a constant expression can't alias memory provably not
...
allocated until runtime (such as an alloca). Patch by Hans Wennborg!
llvm-svn: 88760
2009-11-14 06:15:14 +00:00
16797a1f55
Added getSubRegIndex(A,B) that returns subreg index of A to B. Use it to replace broken code in VirtRegRewriter.
...
llvm-svn: 88753
2009-11-14 03:42:17 +00:00
6ad7da96fe
- Change TargetInstrInfo::reMaterialize to pass in TargetRegisterInfo.
...
- If destination is a physical register and it has a subreg index, use the
sub-register instead.
This fixes PR5423.
llvm-svn: 88745
2009-11-14 02:55:43 +00:00
81132465d3
Add an option for running GVN with redundant load processing disabled.
...
llvm-svn: 88742
2009-11-14 02:27:51 +00:00
d2c10508cd
Fix PR5412: Fix an inverted check and another missing sub-register check.
...
llvm-svn: 88738
2009-11-14 02:09:09 +00:00
a627e26d39
Enable the tail call optimization when the caller returns undef.
...
llvm-svn: 88737
2009-11-14 02:06:30 +00:00
66401c90da
When expanding t2STRDi8 r, r to two stores, add kill markers correctly.
...
llvm-svn: 88734
2009-11-14 01:50:00 +00:00
24b027401e
Fix bug in -split-phi-edges.
...
When splitting an edge after a machine basic block with fall-through, we
forgot to insert a jump instruction. Fix this by calling updateTerminator() on
the fall-through block when relevant.
Also be more precise in PHIElimination::isLiveIn.
llvm-svn: 88728
2009-11-14 00:38:13 +00:00
15ca009ee7
Update MachineDominator information
...
llvm-svn: 88727
2009-11-14 00:38:06 +00:00
6b7233afc6
Added an API to the SlotIndexes pass to allow new instructions to be inserted into the numbering.
...
PreAllocSplitting is now using this API to insert code.
llvm-svn: 88725
2009-11-14 00:02:51 +00:00
78fa302e7d
Fix PR5411. Bug in UpdateKills. A reg def partially define its super-registers.
...
llvm-svn: 88719
2009-11-13 23:16:41 +00:00
96b26acd0f
Remove extraneous commit.
...
llvm-svn: 88716
2009-11-13 23:08:47 +00:00
0cabd30b22
Print out something, even if it's non-parseable later when we've
...
got ghost linkage. It's better than aborting.
llvm-svn: 88715
2009-11-13 23:00:14 +00:00
ad205d6102
Fix PHIElimination optimization that uses MBB->getBasicBlock.
...
The BasicBlock associated with a MachineBasicBlock does not necessarily
correspond to the code in the MBB.
Don't insert a new IR BasicBlock when splitting critical edges. We are not
supposed to modify the IR during codegen, and we should be able to do just
fine with a NULL BB.
llvm-svn: 88707
2009-11-13 21:56:15 +00:00
27440e71fc
Add MachineFunction::verify() to call the machine code verifier directly.
...
llvm-svn: 88706
2009-11-13 21:56:09 +00:00
ff0302489b
The instruction pointer %RIP is a reserved register on x86_64.
...
llvm-svn: 88705
2009-11-13 21:56:01 +00:00
1ecc8b2de1
Fix polarity of a CFG check in machine verifier.
...
llvm-svn: 88704
2009-11-13 21:55:54 +00:00
7474546e4d
Use .data() instead of .c_str() when nul-termination is not needed.
...
llvm-svn: 88703
2009-11-13 21:55:31 +00:00
659c1a9d78
Move DebugInfo checks into EmitComments and remove them from
...
target-specific AsmPrinters. Not all comments need DebugInfo.
Re-enable the line numbers comment test.
llvm-svn: 88697
2009-11-13 21:34:57 +00:00
225fa59cac
When optimizing for size, don't tail-merge unless it's likely to be a
...
code-size win, and not when it's only likely to be code-size neutral,
such as when only a single instruction would be eliminated and a new
branch would be required.
This fixes rdar://7392894.
llvm-svn: 88692
2009-11-13 21:02:15 +00:00
d190b8216f
Fix PR5410: LiveVariables lost subreg def:
...
D0<def,dead> = ...
...
= S0<use, kill>
S0<def> = ...
...
D0<def> =
The first D0 def is correctly marked dead, however, livevariables should have
added an implicit def of S0 or we end up with a use without a def.
llvm-svn: 88690
2009-11-13 20:36:40 +00:00
b9fe5d5d02
Allow target to specify regclass for which antideps will only be broken along the critical path.
...
llvm-svn: 88682
2009-11-13 19:52:48 +00:00
a03b5b44fc
Support fp64 immediate zero, this fixes only part of PR5445
...
because the testcase is triggering one more bug.
llvm-svn: 88674
2009-11-13 18:49:59 +00:00
f80dc08059
Don't let a noalias difference disrupt the tailcall optimization.
...
llvm-svn: 88672
2009-11-13 18:49:38 +00:00
ff2c72b858
Distinguish "a," from "a". The first one splits into "a" + "" and the second one into
...
"a" + 0.
llvm-svn: 87084
2009-11-13 04:55:09 +00:00
76a06074eb
Revert r87059 for now. It is failing clang tests.
...
llvm-svn: 87070
2009-11-13 02:27:33 +00:00
97f99fa554
Ignore nameless variables.
...
llvm-svn: 87069
2009-11-13 02:25:26 +00:00
7c6854995d
Switch to smallvector. Also fix issue with using unsigend for MaxSplit.
...
llvm-svn: 87068
2009-11-13 02:18:25 +00:00
5f4eecf961
Adjust isConstantSplat to allow for big-endian targets.
...
PPC is such a target; make it work.
llvm-svn: 87060
2009-11-13 01:45:18 +00:00
41e7648e09
Remove unnecessary llvm.dbg.declare bitcast
...
llvm-svn: 87059
2009-11-13 01:44:55 +00:00
d554e44092
Add a new split method to StringRef that puts the substrings in a vector.
...
llvm-svn: 87058
2009-11-13 01:24:40 +00:00
46a524c3e8
Block renumbering
...
llvm-svn: 87056
2009-11-13 01:19:24 +00:00
969910b3e8
use lower case for readability
...
llvm-svn: 87054
2009-11-13 01:17:22 +00:00
2f4c37425b
Fix a bootstrap failure.
...
Provide special isLoadFromStackSlotPostFE and isStoreToStackSlotPostFE
interfaces to explicitly request checking for post-frame ptr elimination
operands. This uses a heuristic so it isn't reliable for correctness.
llvm-svn: 87047
2009-11-13 00:29:53 +00:00
e96b2111b1
Re-enable this code, since redundant PHIs are now being better nuked.
...
llvm-svn: 87042
2009-11-12 23:22:41 +00:00
c781d7a072
Simplify code a bit
...
llvm-svn: 87040
2009-11-12 23:13:08 +00:00
e412064c4c
Refactor code that checks if it's a call to a "nounwind" function.
...
llvm-svn: 87036
2009-11-12 21:59:20 +00:00
5c89f4b4ef
use isInstructionTriviallyDead, as pointed out by Duncan
...
llvm-svn: 87035
2009-11-12 21:58:18 +00:00
033d65581d
Do some cleanups suggested by Chris.
...
llvm-svn: 87034
2009-11-12 21:49:55 +00:00
7cf326aed4
Set the ReloadReuse AsmPrinter flag where appropriate.
...
llvm-svn: 87030
2009-11-12 21:07:54 +00:00
be851acfb0
Make the MachineFunction argument of getFrameRegister const.
...
This also fixes a build error.
llvm-svn: 87027
2009-11-12 21:00:03 +00:00
70fdd57dc1
Add hasLoadFromStackSlot and hasStoreToStackSlot to return whether a
...
machine instruction loads or stores from/to a stack slot. Unlike
isLoadFromStackSlot and isStoreFromStackSlot, the instruction may be
something other than a pure load/store (e.g. it may be an arithmetic
operation with a memory operand). This helps AsmPrinter determine when
to print a spill/reload comment.
This is only a hint since we may not be able to figure this out in all
cases. As such, it should not be relied upon for correctness.
Implement for X86. Return false by default for other architectures.
llvm-svn: 87026
2009-11-12 20:55:29 +00:00
5026bc3a86
Fix -Asserts warning.
...
llvm-svn: 87024
2009-11-12 20:53:43 +00:00
e3ae25b3d8
If there's more than one function operand to a call instruction, be conservative
...
and don't assume that the call doesn't throw. It would be nice if there were a
way to determine which is the callee and which is a parameter. In practice, the
architecture we care about normally only have one operand for a call instruction
(x86 and arm).
llvm-svn: 87023
2009-11-12 20:51:53 +00:00
1fbe054450
Add a bool flag to StackObjects telling whether they reference spill
...
slots. The AsmPrinter will use this information to determine whether to
print a spill/reload comment.
Remove default argument values. It's too easy to pass a wrong argument
value when multiple arguments have default values. Make everything
explicit to trap bugs early.
Update all targets to adhere to the new interfaces..
llvm-svn: 87022
2009-11-12 20:49:22 +00:00
68e4945c03
Add compare_lower and equals_lower methods to StringRef. Switch all users of
...
StringsEqualNoCase (from StringExtras.h) to it.
llvm-svn: 87020
2009-11-12 20:36:59 +00:00
81eb42d8ca
Make FixedStackPseudoSourceValue a first-class PseudoSourceValue by
...
making it visible to clients and adding LLVM-style cast capability.
This will be used by AsmPrinter to determine when to emit spill comments
for an instruction.
llvm-svn: 87019
2009-11-12 20:25:07 +00:00
da83f7d58b
Rename registers to break output dependencies in addition to anti-dependencies.
...
llvm-svn: 87015
2009-11-12 19:08:21 +00:00
2904aa9f6e
"Attach debug info with llvm instructions" mode was enabled a month ago. Now make it permanent and remove old way of inserting intrinsics to encode debug info for line number and scopes.
...
llvm-svn: 87014
2009-11-12 19:02:56 +00:00
5d57714e6c
Update TB[BH] layout optimization. Add support for moving the target block
...
to directly follow the jump table. Move the layout changes to prior to any
constant island handling.
llvm-svn: 86999
2009-11-12 17:25:07 +00:00
f8fcac7470
fix crash in my previous patch
...
llvm-svn: 86987
2009-11-12 15:10:33 +00:00
60d5b1cfdb
implement shl, ashr, and lshr methods. shl is not fully implemented as it is quite tricky.
...
llvm-svn: 86986
2009-11-12 14:53:53 +00:00
eb9acbfb05
implement a nice little efficiency hack in the inliner. Since we're now
...
running IPSCCP early, and we run functionattrs interlaced with the inliner,
we often (particularly for small or noop functions) completely propagate
all of the information about a call to its call site in IPSSCP (making a call
dead) and functionattrs is smart enough to realize that the function is
readonly (because it is interlaced with inliner).
To improve compile time and make the inliner threshold more accurate, realize
that we don't have to inline dead readonly function calls. Instead, just
delete the call. This happens all the time for C++ codes, here are some
counters from opt/llvm-ld counting the number of times calls were deleted vs
inlined on various apps:
Tramp3d opt:
5033 inline - Number of call sites deleted, not inlined
24596 inline - Number of functions inlined
llvm-ld:
667 inline - Number of functions deleted because all callers found
699 inline - Number of functions inlined
483.xalancbmk opt:
8096 inline - Number of call sites deleted, not inlined
62528 inline - Number of functions inlined
llvm-ld:
217 inline - Number of allocas merged together
2158 inline - Number of functions inlined
471.omnetpp:
331 inline - Number of call sites deleted, not inlined
8981 inline - Number of functions inlined
llvm-ld:
171 inline - Number of functions deleted because all callers found
629 inline - Number of functions inlined
Deleting a call is much faster than inlining it, and is insensitive to the
size of the callee. :)
llvm-svn: 86975
2009-11-12 07:56:08 +00:00
5d85a46f76
RegScavenger::enterBasicBlock should always reset register state.
...
llvm-svn: 86972
2009-11-12 07:49:10 +00:00
85a9f430e9
- Teach LSR to avoid changing cmp iv stride if it will create an immediate that
...
cannot be folded into target cmp instruction.
- Avoid a phase ordering issue where early cmp optimization would prevent the
later count-to-zero optimization.
- Add missing checks which could cause LSR to reuse stride that does not have
users.
- Fix a bug in count-to-zero optimization code which failed to find the pre-inc
iv's phi node.
- Remove, tighten, loosen some incorrect checks disable valid transformations.
- Quite a bit of code clean up.
llvm-svn: 86969
2009-11-12 07:35:05 +00:00
e129dd311e
Use table to separate opcode from operands.
...
llvm-svn: 86965
2009-11-12 07:16:34 +00:00
15b80e4a9f
isLegalICmpImmediate should take a signed integer; code clean up.
...
llvm-svn: 86964
2009-11-12 07:13:11 +00:00
5f6b8b2bcb
use getPredicateOnEdge to fold comparisons through PHI nodes,
...
which implements GCC PR18046. This also gets us 360 more
jump threads on 176.gcc.
llvm-svn: 86953
2009-11-12 05:24:05 +00:00
22db4b5e0c
various fixes to the lattice transfer functions.
...
llvm-svn: 86952
2009-11-12 04:57:13 +00:00
c893c4ed10
switch jump threading to use getPredicateOnEdge in one place
...
making the new LVI stuff smart enough to subsume some special
cases in the old code. Disable them when LVI is around, the
testcase still passes.
llvm-svn: 86951
2009-11-12 04:37:50 +00:00
565ee2f1bd
Add a new getPredicateOnEdge method which returns more rich information for
...
constant constraints. Improve the LVI lattice to include inequality
constraints.
llvm-svn: 86950
2009-11-12 04:36:58 +00:00
801b33b17c
Move the utility function UpdateTerminator() from CodePlacementOpt() into
...
MachineBasicBlock so other passes can utilize it.
llvm-svn: 86947
2009-11-12 03:55:33 +00:00
6385ea7c4e
Revert 86857. It's causing consumer-typeset to fail, and there's a better way to do it forthcoming anyway.
...
llvm-svn: 86945
2009-11-12 03:28:35 +00:00
cb5e227373
Use stubs when we have them, otherwise use code we already have,
...
otherwise create a stub.
Add a test to make sure we don't create extraneous stubs.
llvm-svn: 86941
2009-11-12 03:12:18 +00:00
11881e2283
Add the braces gcc suggested.
...
llvm-svn: 86933
2009-11-12 02:52:56 +00:00
a9b40a6eb4
Make the BranchFolderPass class local to BranchFolding.cpp.
...
llvm-svn: 86928
2009-11-12 01:59:26 +00:00
b3bf49f67e
Minor code cleanups.
...
llvm-svn: 86926
2009-11-12 01:51:28 +00:00
ba45616958
with the new code we can thread non-instruction values. This
...
allows us to handle the test10 testcase.
llvm-svn: 86924
2009-11-12 01:41:34 +00:00
3f80d85191
this argument can be an arbitrary value, it doesn't need to be an instruction.
...
llvm-svn: 86923
2009-11-12 01:37:43 +00:00
d5e25436a1
expose edge information and switch j-t to use it.
...
llvm-svn: 86920
2009-11-12 01:29:10 +00:00
bff25cb044
Fixed an iteration condition in PreAllocSplitting. This should fix some miscompilations casued by PreAllocSplitting.
...
llvm-svn: 86919
2009-11-12 01:24:08 +00:00
b584d1e456
move some stuff into DEBUG's and turn on lazy-value-info for
...
the basic.ll testcase.
llvm-svn: 86918
2009-11-12 01:22:16 +00:00
ebbfbeef7d
Fix typo, cleanup whitespace.
...
llvm-svn: 86917
2009-11-12 01:06:08 +00:00
862ef782de
Do not use StringRef in DebugInfo interface.
...
This allows StringRef to skip controversial if(str) check in constructor.
Buildbots, wait for corresponding clang and llvm-gcc FE check-ins!
llvm-svn: 86914
2009-11-12 00:50:58 +00:00
09478e975d
Tail merge at any size when there are two potentials blocks and one
...
can be made to fall through into the other.
llvm-svn: 86909
2009-11-12 00:39:10 +00:00
7a6b11e707
Don't mark a call as potentially throwing if the function it's calling has the
...
"nounwind" attribute.
llvm-svn: 86897
2009-11-11 23:17:02 +00:00
626d49f684
A real solution for the first part of PR5445
...
llvm-svn: 86895
2009-11-11 23:09:33 +00:00
19019eaf00
make LazyValueInfo actually to some stuff. This isn't very tested but improves
...
strswitch.
llvm-svn: 86889
2009-11-11 22:48:44 +00:00
67146695b6
pass TD into a SimplifyCmpInst call. Add another case that
...
uses LVI info when -enable-jump-threading-lvi is passed.
llvm-svn: 86886
2009-11-11 22:31:38 +00:00
02b155427e
Promote MergePotentialsElt and SameTailElt to be regular classes
...
instead of typedefs for std::pair. This simplifies the type of
SameTails, which previously was std::vector<std::pair<std::vector<std::pair<unsigned, MachineBasicBlock *> >::iterator, MachineBasicBlock::iterator>
llvm-svn: 86885
2009-11-11 21:57:02 +00:00
9f34406a90
x86 users can now return arbitrary sized structs. Structs too large to fit in return registers will be returned through a hidden sret parameter introduced during SelectionDAG construction.
...
llvm-svn: 86876
2009-11-11 19:59:24 +00:00
71782d59c7
Revert this line of 86871.
...
llvm-svn: 86875
2009-11-11 19:56:05 +00:00
d41f119dac
If doesSupportDebugInformation() is false then do not try to emit dwarf debug info.
...
llvm-svn: 86874
2009-11-11 19:55:08 +00:00
34eeb4e983
Check in the changes to this file too.
...
llvm-svn: 86873
2009-11-11 19:49:34 +00:00
64b5d0f468
Add support for tail duplication to BranchFolding, and extend
...
tail merging support to handle more cases.
- Recognize several cases where tail merging is beneficial even when
the tail size is smaller than the generic threshold.
- Make use of MachineInstrDesc::isBarrier to help detect
non-fallthrough blocks.
- Check for and avoid disrupting fall-through edges in more cases.
llvm-svn: 86871
2009-11-11 19:48:59 +00:00
4f7fd3baeb
Fix liveness calculation when splitting critical edges during PHI elimination.
...
- Edges are split before any phis are eliminated, so the code is SSA.
- Create a proper IR BasicBlock for the split edges.
- LiveVariables::addNewBlock now has same syntax as
MachineDominatorTree::addNewBlock. Algorithm calculates predecessor live-out
set rather than successor live-in set.
This feature still causes some miscompilations.
llvm-svn: 86867
2009-11-11 19:31:31 +00:00
3d3c24a82c
Add TargetLowering::isLegalICmpImmediate. It tells LSR what immediate can be folded into target icmp instructions.
...
llvm-svn: 86858
2009-11-11 19:05:52 +00:00
d576d66d91
Do jump table adjustment before constant island allocation
...
llvm-svn: 86857
2009-11-11 19:04:24 +00:00
16cfb9106e
Fix indentation level.
...
llvm-svn: 86856
2009-11-11 18:42:28 +00:00
c86b5a15f5
Whitespace cleanups.
...
llvm-svn: 86855
2009-11-11 18:38:14 +00:00
84bb28fc84
Prefix MBB numbers with "BB#" in debug output to make it clear what
...
the numbers mean.
llvm-svn: 86854
2009-11-11 18:23:17 +00:00
f4141f1dda
Minor code simplification.
...
llvm-svn: 86853
2009-11-11 18:18:34 +00:00
9fd22f68f2
Set isBarrier = 1 on return instructions, as they are control barriers.
...
llvm-svn: 86851
2009-11-11 18:11:07 +00:00
d2a0f80ede
Use a tab in INT3's asm string, for consistency.
...
llvm-svn: 86850
2009-11-11 18:07:16 +00:00
7a09964e81
another const prop failure.
...
llvm-svn: 86848
2009-11-11 17:54:02 +00:00
539bdf0487
add a note
...
llvm-svn: 86847
2009-11-11 17:51:27 +00:00
7eb84155a5
Reject duplicate case values in a switch, PR5450.
...
llvm-svn: 86846
2009-11-11 17:37:02 +00:00
ba61fed5d3
Don't trivially delete unused calls to llvm.invariant.start. This allows
...
llvm.invariant.start to be used without necessarily being paired with a call
to llvm.invariant.end. If you run the entire optimization pipeline then such
calls are in fact deleted (adce does it), but that's actually a good thing since
we probably do want them to be zapped late in the game. There should really be
an integration test that checks that the llvm.invariant.start call lasts long
enough that all passes that do interesting things with it get to do their stuff
before it is deleted. But since no passes do anything interesting with it yet
this will have to wait for later.
llvm-svn: 86840
2009-11-11 15:34:13 +00:00
852f2653c4
remove the now dead condprop pass, PR3906.
...
llvm-svn: 86810
2009-11-11 05:56:35 +00:00
cd6291506b
Remove dead code.
...
llvm-svn: 86802
2009-11-11 04:10:24 +00:00
598825e832
Show command-line args and features passed into backend in debug output. Approved by Evan Cheng.
...
llvm-svn: 86797
2009-11-11 03:23:46 +00:00
75b4d3562c
Fix -Asserts warning.
...
llvm-svn: 86794
2009-11-11 03:09:50 +00:00
8d92ec45c7
The TBB and TBH instructions for Thumb2 are really handy for jump tables, but
...
can only branch forward. To best take advantage of them, we'd like to adjust
the basic blocks around a bit when reasonable. This patch puts basics in place
to do that, with a super-simple algorithm for backwards jump table targets that
creates a new branch after the jump table which branches backwards. Real
heuristics for reordering blocks or other modifications rather than inserting
branches will follow.
llvm-svn: 86791
2009-11-11 02:47:19 +00:00
fde1f8d0d8
stub out some LazyValueInfo interfaces, and have JumpThreading
...
start using them in a trivial way when -enable-jump-threading-lvi
is passed. enable-jump-threading-lvi will be my playground for
awhile.
llvm-svn: 86789
2009-11-11 02:08:33 +00:00
676f44062e
Make sure that the exception handling data has the same visibility as the
...
function it's generated for.
llvm-svn: 86779
2009-11-11 01:24:59 +00:00
78319c67ca
Do not assume first function scope seen represents current function.
...
llvm-svn: 86771
2009-11-11 00:31:36 +00:00
9806e4ab20
Add From arguments to StringRef search functions, and tweak doxyments.
...
Also, add unittests for find_first_of and find_first_not_of.
llvm-svn: 86770
2009-11-11 00:28:53 +00:00
bc299f0092
llvm-gcc/clang don't (won't?) need this hack.
...
llvm-svn: 86769
2009-11-11 00:28:38 +00:00
741c94c719
Stub out a new lazy value info pass, which will eventually
...
vend value constraint information to the optimizer.
llvm-svn: 86767
2009-11-11 00:22:30 +00:00
3a2ae908fe
add a fixme
...
llvm-svn: 86766
2009-11-11 00:21:58 +00:00
c4e03b7ac7
remove redundant foward declaration. This function is already in
...
Analysis/Passes.h
llvm-svn: 86765
2009-11-11 00:21:21 +00:00
4450f26621
While creating DbgScopes, do not forget parent scope.
...
llvm-svn: 86763
2009-11-11 00:18:40 +00:00
12f146d8f7
Block terminator may be a switch.
...
llvm-svn: 86761
2009-11-11 00:00:21 +00:00
0169fd7c62
add a note
...
llvm-svn: 86756
2009-11-10 23:47:45 +00:00
8ff26038ef
I did this a week or two ago
...
llvm-svn: 86754
2009-11-10 23:40:49 +00:00
cdb7d44d6d
Ignore variable if scope info is not available.
...
llvm-svn: 86753
2009-11-10 23:20:04 +00:00
6f7d5b22bb
Emit correct code when making a ConstantPool entry for a vector
...
constant whose component type is not a legal type for the target.
(If the target ConstantPool cannot handle this type either, it has
an opportunity to merge elements. In practice any target with
8-bit bytes must support i8 *as data*). 7320806 (partial).
llvm-svn: 86751
2009-11-10 23:16:41 +00:00
f6eeaebd76
Implement support to debug inlined functions.
...
llvm-svn: 86748
2009-11-10 23:06:00 +00:00
9518fbb54e
implement a TODO by teaching jump threading about "xor x, 1".
...
llvm-svn: 86739
2009-11-10 22:39:16 +00:00
852d6d64ff
move some generally useful functions out of jump threading
...
into libanalysis and transformutils.
llvm-svn: 86735
2009-11-10 22:26:15 +00:00
de8d418ac3
Don't mark conditional branch instructions as control barriers.
...
llvm-svn: 86732
2009-11-10 22:16:57 +00:00
fc9469f311
Modify how the prologue encoded the "move" information for the FDE. GCC
...
generates a sequence similar to this:
__Z4funci:
LFB2:
mflr r0
LCFI0:
stmw r30,-8(r1)
LCFI1:
stw r0,8(r1)
LCFI2:
stwu r1,-80(r1)
LCFI3:
mr r30,r1
LCFI4:
where LCFI3 and LCFI4 are used by the FDE to indicate what the FP, LR, and other
things are. We generated something more like this:
Leh_func_begin1:
mflr r0
stw r31, 20(r1)
stw r0, 8(r1)
Llabel1:
stwu r1, -80(r1)
Llabel2:
mr r31, r1
Note that we are missing the "mr" instruction. This patch makes it more like the
GCC output.
llvm-svn: 86729
2009-11-10 22:14:04 +00:00
42c1d17dd1
Process InlinedAt location info.
...
Update InsertDeclare to return newly inserted llvm.dbg.declare intrinsic.
llvm-svn: 86727
2009-11-10 22:05:35 +00:00
02e2cee7dc
fix a crash in SCCP handling extractvalue of an array, pointed out and
...
tracked down by Stephan Reiter!
llvm-svn: 86726
2009-11-10 22:02:09 +00:00
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
Jim Grosbach