Sanjiv Gupta
6fb01a7750
Fix debug info crashes for PIC16.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88761 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 06:19:49 +00:00
Nick Lewycky
20162ac566
Teach BasicAA that a constant expression can't alias memory provably not
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allocated until runtime (such as an alloca). Patch by Hans Wennborg!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88760 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 06:15:14 +00:00
Evan Cheng
fae3e92345
Added getSubRegIndex(A,B) that returns subreg index of A to B. Use it to replace broken code in VirtRegRewriter.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88753 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 03:42:17 +00:00
Evan Cheng
d57cdd5683
- Change TargetInstrInfo::reMaterialize to pass in TargetRegisterInfo.
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- If destination is a physical register and it has a subreg index, use the
sub-register instead.
This fixes PR5423.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88745 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 02:55:43 +00:00
Dan Gohman
4ec01b268e
Add an option for running GVN with redundant load processing disabled.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88742 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 02:27:51 +00:00
Evan Cheng
e17ae4f82e
Add radar number.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88739 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 02:11:32 +00:00
Evan Cheng
8fdd84cfa7
Fix PR5412: Fix an inverted check and another missing sub-register check.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88738 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 02:09:09 +00:00
Dan Gohman
ed9bab3b4d
Enable the tail call optimization when the caller returns undef.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88737 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 02:06:30 +00:00
Evan Cheng
0cd22dd738
When expanding t2STRDi8 r, r to two stores, add kill markers correctly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88734 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 01:50:00 +00:00
Jakob Stoklund Olesen
3b6ced1510
Fix bug in -split-phi-edges.
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88728 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 00:38:13 +00:00
Jakob Stoklund Olesen
9aebb61daf
Update MachineDominator information
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88727 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 00:38:06 +00:00
Lang Hames
b3661585c0
Added an API to the SlotIndexes pass to allow new instructions to be inserted into the numbering.
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PreAllocSplitting is now using this API to insert code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88725 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 00:02:51 +00:00
Evan Cheng
1f6a3c820a
Fix PR5411. Bug in UpdateKills. A reg def partially define its super-registers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88719 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 23:16:41 +00:00
Eric Christopher
2b1ffeea28
Remove extraneous commit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88716 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 23:08:47 +00:00
Eric Christopher
04458e404f
Print out something, even if it's non-parseable later when we've
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got ghost linkage. It's better than aborting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88715 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 23:00:14 +00:00
Dan Gohman
ce8447ccfe
Move the FixedStackPseudoSourceValueVal enum value before InstructionVal
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so that isa<Instructon> doesn't return true for FixedStackPseudoSourceValue
values. This fixes a variety of problems, including crashes with -debug
and -print-machineinstrs. Also, add a comment to warn about this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88711 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 22:24:13 +00:00
Bill Wendling
0c2749f3e2
Disable the JITTest.NoStubs test for Darwin PPC. It apparently doesn't implement
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emitFunctionStubAtAddr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88708 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:58:54 +00:00
Jakob Stoklund Olesen
1222287543
Fix PHIElimination optimization that uses MBB->getBasicBlock.
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88707 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:56:15 +00:00
Jakob Stoklund Olesen
ce727d0da0
Add MachineFunction::verify() to call the machine code verifier directly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88706 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:56:09 +00:00
Jakob Stoklund Olesen
52cd548525
The instruction pointer %RIP is a reserved register on x86_64.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:56:01 +00:00
Jakob Stoklund Olesen
1dc0fcbaed
Fix polarity of a CFG check in machine verifier.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88704 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:55:54 +00:00
Dan Gohman
24f8e29b4e
Use .data() instead of .c_str() when nul-termination is not needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88703 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:55:31 +00:00
Devang Patel
a2b3cdc21f
Do not use value handle to wrap MDNode in DIDescriptor.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:45:04 +00:00
David Greene
1924aabf99
Move DebugInfo checks into EmitComments and remove them from
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target-specific AsmPrinters. Not all comments need DebugInfo.
Re-enable the line numbers comment test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88697 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:34:57 +00:00
Dan Gohman
c4c550c758
When optimizing for size, don't tail-merge unless it's likely to be a
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88692 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:02:15 +00:00
Evan Cheng
236490d870
Fix PR5410: LiveVariables lost subreg def:
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D0<def,dead> = ...
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= S0<use, kill>
S0<def> = ...
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88690 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 20:36:40 +00:00
David Goodwin
87d21b92fc
Allow target to specify regclass for which antideps will only be broken along the critical path.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 19:52:48 +00:00
Bruno Cardoso Lopes
a8173b934f
Support fp64 immediate zero, this fixes only part of PR5445
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because the testcase is triggering one more bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88674 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 18:49:59 +00:00
Dan Gohman
01205a80f5
Don't let a noalias difference disrupt the tailcall optimization.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88672 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 18:49:38 +00:00
David Greene
0d1680a7d8
Remove duplicate APIs and state WRT spill objects.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87106 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 14:42:06 +00:00
Rafael Espindola
20fd4ec8c5
Distinguish "a," from "a". The first one splits into "a" + "" and the second one into
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"a" + 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87084 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 04:55:09 +00:00
Devang Patel
3ddf70442f
Revert r87059 for now. It is failing clang tests.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87070 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 02:27:33 +00:00
Devang Patel
3fb6bd690a
Ignore nameless variables.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87069 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 02:25:26 +00:00
Rafael Espindola
c78c0c99a0
Switch to smallvector. Also fix issue with using unsigend for MaxSplit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 02:18:25 +00:00
Dale Johannesen
1e608819aa
Adjust isConstantSplat to allow for big-endian targets.
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PPC is such a target; make it work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87060 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 01:45:18 +00:00
Victor Hernandez
0418c102dd
Remove unnecessary llvm.dbg.declare bitcast
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87059 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 01:44:55 +00:00
Rafael Espindola
5ccac24726
Add a new split method to StringRef that puts the substrings in a vector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87058 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 01:24:40 +00:00
Jim Grosbach
c1a07be185
Block renumbering
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87056 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 01:19:24 +00:00
Jim Grosbach
f4cbc0e421
use lower case for readability
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87054 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 01:17:22 +00:00
Daniel Dunbar
6242495be2
Update test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87049 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 01:01:58 +00:00
David Greene
dda3978d78
Fix a bootstrap failure.
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87047 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 00:29:53 +00:00
Owen Anderson
98538b4bea
Re-enable this code, since redundant PHIs are now being better nuked.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87042 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 23:22:41 +00:00
Bill Wendling
ecc260e403
Simplify code a bit
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87040 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 23:13:08 +00:00
Bill Wendling
ed060dcb5c
Refactor code that checks if it's a call to a "nounwind" function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87036 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 21:59:20 +00:00
Chris Lattner
4ff4141a9e
use isInstructionTriviallyDead, as pointed out by Duncan
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87035 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 21:58:18 +00:00
David Greene
b3bc115a24
Do some cleanups suggested by Chris.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87034 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 21:49:55 +00:00
Daniel Dunbar
89fccca4b0
StringRef(const char*) should not be used to turn null pointers into empty
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strings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87031 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 21:26:11 +00:00
David Greene
6bedb30220
Set the ReloadReuse AsmPrinter flag where appropriate.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87030 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 21:07:54 +00:00
Daniel Dunbar
efae4d379d
Remove my Value.h build fix.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87029 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 21:07:02 +00:00
David Greene
d7a18e420e
Fix a build error by providing a missing enum value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87028 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 21:04:19 +00:00