241d01b590
Add llvm::sys::getHostCPUName, for detecting the LLVM name for the host CPU.
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- 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
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ultimately never used.
llvm-svn: 88763
2009-11-14 07:25:54 +00:00
d03742a122
revert 88761 as it fails builds.
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llvm-svn: 88762
2009-11-14 07:22:25 +00:00
8f9c22646b
Fix debug info crashes for PIC16.
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llvm-svn: 88761
2009-11-14 06:19:49 +00:00
c53e2ecf02
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!
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.
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llvm-svn: 88753
2009-11-14 03:42:17 +00:00
6ad7da96fe
- 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.
llvm-svn: 88745
2009-11-14 02:55:43 +00:00
81132465d3
Add an option for running GVN with redundant load processing disabled.
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llvm-svn: 88742
2009-11-14 02:27:51 +00:00
e3b312fec9
Add radar number.
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llvm-svn: 88739
2009-11-14 02:11:32 +00:00
d2c10508cd
Fix PR5412: Fix an inverted check and another missing sub-register check.
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llvm-svn: 88738
2009-11-14 02:09:09 +00:00
a627e26d39
Enable the tail call optimization when the caller returns undef.
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llvm-svn: 88737
2009-11-14 02:06:30 +00:00
66401c90da
When expanding t2STRDi8 r, r to two stores, add kill markers correctly.
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llvm-svn: 88734
2009-11-14 01:50:00 +00:00
24b027401e
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.
llvm-svn: 88728
2009-11-14 00:38:13 +00:00
15ca009ee7
Update MachineDominator information
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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.
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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.
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llvm-svn: 88719
2009-11-13 23:16:41 +00:00
96b26acd0f
Remove extraneous commit.
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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
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got ghost linkage. It's better than aborting.
llvm-svn: 88715
2009-11-13 23:00:14 +00:00
6e99014947
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.
llvm-svn: 88711
2009-11-13 22:24:13 +00:00
6787318557
Disable the JITTest.NoStubs test for Darwin PPC. It apparently doesn't implement
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emitFunctionStubAtAddr.
llvm-svn: 88708
2009-11-13 21:58:54 +00:00
ad205d6102
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.
llvm-svn: 88707
2009-11-13 21:56:15 +00:00
27440e71fc
Add MachineFunction::verify() to call the machine code verifier directly.
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llvm-svn: 88706
2009-11-13 21:56:09 +00:00
ff0302489b
The instruction pointer %RIP is a reserved register on x86_64.
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llvm-svn: 88705
2009-11-13 21:56:01 +00:00
1ecc8b2de1
Fix polarity of a CFG check in machine verifier.
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llvm-svn: 88704
2009-11-13 21:55:54 +00:00
7474546e4d
Use .data() instead of .c_str() when nul-termination is not needed.
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llvm-svn: 88703
2009-11-13 21:55:31 +00:00
452c1646c6
Do not use value handle to wrap MDNode in DIDescriptor.
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llvm-svn: 88700
2009-11-13 21:45:04 +00:00
659c1a9d78
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.
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
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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.
llvm-svn: 88692
2009-11-13 21:02:15 +00:00
d190b8216f
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.
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.
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llvm-svn: 88682
2009-11-13 19:52:48 +00:00
a03b5b44fc
Support fp64 immediate zero, this fixes only part of PR5445
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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.
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llvm-svn: 88672
2009-11-13 18:49:38 +00:00
a32c214b23
Remove duplicate APIs and state WRT spill objects.
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llvm-svn: 87106
2009-11-13 14:42:06 +00:00
ff2c72b858
Distinguish "a," from "a". The first one splits into "a" + "" and the second one into
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"a" + 0.
llvm-svn: 87084
2009-11-13 04:55:09 +00:00
76a06074eb
Revert r87059 for now. It is failing clang tests.
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llvm-svn: 87070
2009-11-13 02:27:33 +00:00
97f99fa554
Ignore nameless variables.
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llvm-svn: 87069
2009-11-13 02:25:26 +00:00
7c6854995d
Switch to smallvector. Also fix issue with using unsigend for MaxSplit.
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llvm-svn: 87068
2009-11-13 02:18:25 +00:00
5f4eecf961
Adjust isConstantSplat to allow for big-endian targets.
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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
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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.
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llvm-svn: 87058
2009-11-13 01:24:40 +00:00
46a524c3e8
Block renumbering
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llvm-svn: 87056
2009-11-13 01:19:24 +00:00
969910b3e8
use lower case for readability
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llvm-svn: 87054
2009-11-13 01:17:22 +00:00
3f75f5ddcb
Update test.
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llvm-svn: 87049
2009-11-13 01:01:58 +00:00
2f4c37425b
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.
llvm-svn: 87047
2009-11-13 00:29:53 +00:00
e96b2111b1
Re-enable this code, since redundant PHIs are now being better nuked.
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llvm-svn: 87042
2009-11-12 23:22:41 +00:00
c781d7a072
Simplify code a bit
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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.
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llvm-svn: 87036
2009-11-12 21:59:20 +00:00
5c89f4b4ef
use isInstructionTriviallyDead, as pointed out by Duncan
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llvm-svn: 87035
2009-11-12 21:58:18 +00:00
033d65581d
Do some cleanups suggested by Chris.
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llvm-svn: 87034
2009-11-12 21:49:55 +00:00
5fb4e7553c
StringRef(const char*) should not be used to turn null pointers into empty
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strings.
llvm-svn: 87031
2009-11-12 21:26:11 +00:00
Daniel Dunbar