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Author SHA1 Message Date
Nuno Lopes 0d44a50426 PHINode::hasConstantValue(): return undef if the PHI is fully recursive. 
Thanks Duncan for the idea

llvm-svn: 159687
 2012-07-03 21:15:40 +00:00
Bill Wendling a0bc1083be Use the DebugInfo's 'print()' method to emit the comments. 
These give quite a bit more information about the DebugInfo and makes it more
readable.

llvm-svn: 159680
 2012-07-03 20:01:02 +00:00
Nuno Lopes 1e8dffdf27 BoundsChecking: optimize out the check for offset < 0 if size is known to be >= 0 (signed). 
(LLVM optimizers cannot do this optimization by themselves)

llvm-svn: 159668
 2012-07-03 17:30:18 +00:00
Nuno Lopes 9291ff4078 fold PHI nodes in SizeOffsetEvaluator whenever possible. 
Unfortunately this change requires the cache map to hold WeakVHs instead

llvm-svn: 159667
 2012-07-03 17:13:25 +00:00
Nuno Lopes 90c76dfb17 improve PHINode::hasConstantValue() to detect recursive cases like %phi = phi(%phi,42) as constant 
llvm-svn: 159666
 2012-07-03 17:10:28 +00:00
Stepan Dyatkovskiy 8b0c97e0dd Part of r159527. Splitted into series of patches and gone with fixed PR13256: 
IntegersSubsetMapping
  - Replaced type of Items field from std::list with std::map. In neares future I'll test it with DenseMap and do the correspond replacement
    if possible.

llvm-svn: 159659
 2012-07-03 13:46:45 +00:00
Craig Topper 85c938f44f Remove extra space. 
llvm-svn: 159647
 2012-07-03 06:48:58 +00:00
Craig Topper f067f9aa51 Change i128mem/i256mem to f128mem/f256mem on some floating point vector instructions. 
llvm-svn: 159646
 2012-07-03 06:11:06 +00:00
NAKAMURA Takumi 09e3510eb1 MCContext.cpp: Fixup for my odd previous commit. No functional changes. 
llvm-svn: 159645
 2012-07-03 06:01:27 +00:00
Craig Topper 676dcd8c39 Add aliases for pblendvb, blendvpd, and blendvps instructions with the implicit xmm0 operand specified. Fixes PR13252. 
llvm-svn: 159644
 2012-07-03 05:49:45 +00:00
NAKAMURA Takumi 30396ba4aa MCContext::GetDwarfFile(): Make FileName parsing tolerant of DOSish pathsep with PathV2. 
It fixes failure in test/MC/MachO/gen-dwarf.s on Win32 w/o bash.

llvm-svn: 159640
 2012-07-03 03:59:29 +00:00
Jack Carter b353094f27 mips32 long long register inline asm constraint support. 
inlineasm-cnstrnt-bad-r-1.ll is NOT supposed to fail, so it was removed.    This resulted in the removal of a negative test (inlineasm-cnstrnt-bad-r-1.ll)
    

llvm-svn: 159625
 2012-07-02 23:35:23 +00:00
Eric Christopher dfc3e68c40 Revert " mips32 long long register inline asm constraint support." as 
it appears to be breaking the bots.

This reverts commit 1b055ce320fa13f6f1ac81670d11b45e01f79876.

llvm-svn: 159619
 2012-07-02 23:22:25 +00:00
Eric Christopher b65acc61a5 Revert "IntRange:" as it appears to be breaking self hosting. 
This reverts commit b2833d9dcba88c6f0520cad760619200adc0442c.

llvm-svn: 159618
 2012-07-02 23:22:21 +00:00
Chandler Carruth 34263a0c95 All glory to address sanitizer. ;] 
It appears to have caught a use-after-free introduced as by r159567
and/or friends which call 'addPass' from many more places. The bug in
'addPass' doesn't appear to be new, and was spotted by inspection when
ASan shown a bright light of a stacktrace at these functions.

Hopefully this will fix the ASan failure -- I have no test case other
than running an ASan-built clang over the test suite.

llvm-svn: 159614
 2012-07-02 22:56:41 +00:00
Evan Cheng 39e90029a2 Target option DisableJumpTables is a gross hack. Move it to TargetLowering instead. 
llvm-svn: 159611
 2012-07-02 22:39:56 +00:00
Jack Carter 5c1a01a625 mips32 long long register inline asm constraint support. 
inlineasm-cnstrnt-bad-r-1.ll is NOT supposed to fail, so it was removed.    This resulted in the removal of a negative test (inlineasm-cnstrnt-bad-r-1.ll)
    

llvm-svn: 159610
 2012-07-02 22:39:45 +00:00
Andrew Trick 2f26b34806 misched: allow NULL InstrItineraries. 
llvm-svn: 159599
 2012-07-02 21:55:12 +00:00
Eric Christopher dd8638fb3e Turn an assert into an error to make it a bit more friendly. 
Part of rdar://6880388 and rdar://11766377

llvm-svn: 159590
 2012-07-02 21:16:43 +00:00
Jack Carter 06de0fb083 Pass the correct ELFOSABI enumeration to the MipsELFObjectWriter constructor 
Contributer: Sasa Stankovic 
llvm-svn: 159574
 2012-07-02 20:04:43 +00:00
Bob Wilson cac3b90633 Extend TargetPassConfig to allow running only a subset of the normal passes. 
This is still a work in progress but I believe it is currently good enough
to fix PR13122 "Need unit test driver for codegen IR passes".  For example,
you can run llc with -stop-after=loop-reduce to have it dump out the IR after
running LSR.  Serializing machine-level IR is not yet supported but we have
some patches in progress for that.

The plan is to serialize the IR to a YAML file, containing separate sections
for the LLVM IR, machine-level IR, and whatever other info is needed.  Chad
suggested that we stash the stop-after pass in the YAML file and use that
instead of the start-after option to figure out where to restart the
compilation.  I think that's a great idea, but since it's not implemented yet
I put the -start-after option into this patch for testing purposes.

llvm-svn: 159570
 2012-07-02 19:48:45 +00:00
Bob Wilson a3f9fa710a Move assertion with TargetPassConfig's Initialized flag. 
llvm-svn: 159569
 2012-07-02 19:48:39 +00:00
Bob Wilson b9b693650a Consistently use AnalysisID types in TargetPassConfig. 
This makes it possible to just use a zero value to represent "no pass", so
the phony NoPassID global variable is no longer needed.

llvm-svn: 159568
 2012-07-02 19:48:37 +00:00
Bob Wilson bbd38dd9c0 Add all codegen passes to the PassManager via TargetPassConfig. 
This is a preliminary step toward having TargetPassConfig be able to
start and stop the compilation at specified passes for unit testing
and debugging.  No functionality change.

llvm-svn: 159567
 2012-07-02 19:48:31 +00:00
Andrew Trick 21cca97d95 Revert accidental checkin. 
My last checkin was apparently not the branch I intended. It was missing one change (added by chandlerc), and contained a spurious change.

llvm-svn: 159548
 2012-07-02 19:12:29 +00:00
Duncan Sands e8ce94fcd7 GlobalOpt forgot to handle bitcast when analyzing globals. Found by inspection. 
llvm-svn: 159546
 2012-07-02 18:55:39 +00:00
Manman Ren 72098b2c91 Added assertion in getVRegDef of MachineRegisterInfo to make sure the virtual 
register does not have multiple definitions. Modified TwoAddressInstructionPass
to use getUniqueVRegDef instead of getVRegDef.

llvm-svn: 159545
 2012-07-02 18:55:36 +00:00
Andrew Trick f161e391f8 Reapply "Make NumMicroOps a variable in the subtarget's instruction itinerary." 
Reapplies r159406 with minor cleanup. The regressions appear to have been spurious.

llvm-svn: 159541
 2012-07-02 18:10:42 +00:00
Bob Wilson 2297221028 Do not attempt to use ROR for Thumb1. 
Patch by Matt Fischer!

llvm-svn: 159538
 2012-07-02 17:22:47 +00:00
Nuno Lopes d0bcfe4d9d fix the regression I introduced in r159385 (it's necessary to update PHI nodes in unwind BB 
llvm-svn: 159534
 2012-07-02 16:14:47 +00:00
Stepan Dyatkovskiy 8b9ecca42d IntRange: 
- Changed isSingleNumber method behaviour. Now this flag is calculated on demand.
IntegersSubsetMapping
  - Optimized diff operation.
  - Replaced type of Items field from std::list with std::map.
  - Added new methods:
    bool isOverlapped(self &RHS)
    void add(self& RHS, SuccessorClass *S)
    void detachCase(self& NewMapping, SuccessorClass *Succ)
    void removeCase(SuccessorClass *Succ)
    SuccessorClass *findSuccessor(const IntTy& Val)
    const IntTy* getCaseSingleNumber(SuccessorClass *Succ)
IntegersSubsetTest
  - DiffTest: Added checks for successors.
SimplifyCFG
  Updated SwitchInst usage (now it is case-ragnes compatible) for
    - SimplifyEqualityComparisonWithOnlyPredecessor
    - FoldValueComparisonIntoPredecessors

llvm-svn: 159527
 2012-07-02 13:02:18 +00:00
Kostya Serebryany eeaf688c0f [asan] small code simplification 
llvm-svn: 159522
 2012-07-02 11:42:29 +00:00
Alexey Samsonov f4462fa3ca This patch extends the libLLVMDebugInfo which contains a minimalistic DWARF parser: 
1) DIContext is now able to return function name for a given instruction address (besides file/line info).
2) llvm-dwarfdump accepts flag --functions that prints the function name (if address is specified by --address flag).
3) test case that checks the basic functionality of llvm-dwarfdump added

llvm-svn: 159512
 2012-07-02 05:54:45 +00:00
Rafael Espindola a77d31d7fd Now that RegistersDefinedFromSameValue handles one instruction being an 
implicit_def, the other instruction can be anything, including instructions
that define multiple values. Be careful about that and don't assume what operand
0 is.
Fixes pr13249.

llvm-svn: 159509
 2012-07-01 17:08:01 +00:00
Elena Demikhovsky 9af899fa88 Optimization of shuffle node that can fit to the register form of VBROADCAST instruction on AVX2. 
llvm-svn: 159504
 2012-07-01 06:12:26 +00:00
Craig Topper 3af251dbf1 Reduce code size by using a second switch statement to avoid extra calls to SelectAtomic64. Also catch cases where SelectAtomic64 fails. 
llvm-svn: 159503
 2012-07-01 02:55:34 +00:00
Craig Topper e15e5f7c5c Add a break to the end of case statement missed in r159501. 
llvm-svn: 159502
 2012-07-01 02:18:18 +00:00
Craig Topper fbb954f727 Fix a crash on release builds if gather intrinsics are passed a non-constant value for the last argument. 
llvm-svn: 159501
 2012-07-01 02:17:08 +00:00
Craig Topper def044b974 Use a second switch statement to reduce number of calls to SelectGather in code. Reduces code size a bit. 
llvm-svn: 159500
 2012-07-01 02:05:52 +00:00
Benjamin Kramer e2ef47c145 Reduce use list thrashing by using DenseMap's find_as for maps with ValueHandle keys. 
No functionality change.

llvm-svn: 159497
 2012-06-30 22:37:15 +00:00
Bill Wendling a164735baa Don't reinsert the 'atexit' function if it already exists. 
llvm-svn: 159491
 2012-06-30 20:21:19 +00:00
Rafael Espindola efab16d43b Handle implicit_defs in the register coalescer. I am still trying to produce 
a reduced testcase, but this fixes pr13209.

llvm-svn: 159479
 2012-06-30 01:45:55 +00:00
Nuno Lopes 7b12b87096 revert r159440. As Duncan pointed out, the test for invoke is not needed at this point 
llvm-svn: 159471
 2012-06-29 22:10:10 +00:00
Manman Ren b1b3db6802 ARM: Clean up optimizeCompare in peephole, no functional change. 
Use getUniqueVRegDef.
Replace a loop with existing interfaces: modifiesRegister and readsRegister.
Factor out code into inline functions and simplify the code.

llvm-svn: 159470
 2012-06-29 22:06:19 +00:00
Manman Ren 6fa76dc0e0 Add SrcReg2 to analyzeCompare and optimizeCompareInstr to handle Compare 
instructions with two register operands.

llvm-svn: 159465
 2012-06-29 21:33:59 +00:00
Jakob Stoklund Olesen 3e3cdecf98 Clear kill flags in InstrEmitter::EmitSubregNode(). 
When a local virtual register is made global, make sure to clear any
existing kill flags.

llvm-svn: 159461
 2012-06-29 21:00:03 +00:00
Jakob Stoklund Olesen da9ea1d6bc Check for extra kill flags on live-out virtual registers. 
This would previously get reported as the misleading "Virtual register
def doesn't dominate all uses."

llvm-svn: 159460
 2012-06-29 21:00:00 +00:00
Benjamin Kramer 396b3adc10 CodeGenPrepare: Don't crash when TLI is not available. 
This happens when codegenprepare is invoked via opt.

llvm-svn: 159457
 2012-06-29 19:58:21 +00:00
Manman Ren c146589aa4 Add getUniqueVRegDef to MachineRegisterInfo. 
This comes in handy during peephole optimization.

llvm-svn: 159453
 2012-06-29 19:16:05 +00:00
Duncan Sands 9838286d9e Rework this to clarify where the removal of nodes from the queue is 
really happening.  No intended functionality change.

llvm-svn: 159451
 2012-06-29 19:03:05 +00:00