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7e32aa1015
llvm-6502/test/Transforms
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Hal Finkel 7e32aa1015 Simplify pointer comparisons involving memory allocation functions 
System memory allocation functions, which are identified at the IR level by the
noalias attribute on the return value, must return a pointer into a memory region
disjoint from any other memory accessible to the caller. We can use this
property to simplify pointer comparisons between allocated memory and local
stack addresses and the addresses of global variables. Neither the stack nor
global variables can overlap with the region used by the memory allocator.

Fixes PR21556.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223093 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-01 23:38:06 +00:00
..
ADCE
AddDiscriminators Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
AlignmentFromAssumptions [AlignmentFromAssumptions] Don't crash just because the target is 32-bit 2014-09-11 08:40:17 +00:00
ArgumentPromotion Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
AtomicExpand/ARM Use target-dependent emitLeading/TrailingFence instead of the target-independent insertLeading/TrailingFence (in AtomicExpandPass) 2014-09-03 21:01:03 +00:00
BBVectorize
BranchFolding Delete -std-compile-opts. 2014-10-16 20:00:02 +00:00
CodeExtractor
CodeGenPrepare [CodeGenPrepare][AArch64] Fix a TLI legality check on iPTR to use a lowered instead. 2014-11-12 22:16:55 +00:00
ConstantHoisting
ConstantMerge
ConstProp Fix a bug around truncating vector in const prop. 2014-08-21 02:12:35 +00:00
CorrelatedValuePropagation LazyValueInfo: Actually re-visit partially solved block-values in solveBlockValue() 2014-11-25 17:23:05 +00:00
DeadArgElim DebugInfo+DeadArgElimination: Ensure llvm::Function*s from debug info are updated even when DAE removes both varargs and non-varargs arguments on the same function. 2014-10-07 15:10:23 +00:00
DeadStoreElimination Parse 'ghccc' in .ll files as the GHC convention (cc 10) 2014-12-01 21:04:44 +00:00
EarlyCSE Tweak EarlyCSE to recognize series of dead stores 2014-11-18 17:46:32 +00:00
FunctionAttrs Normally an 'optnone' function goes through fast-isel, which does not 2014-11-03 18:19:26 +00:00
GCOVProfiling Relax the gcov version.ll test to check '.' instead of '\*' 2014-11-13 23:07:55 +00:00
GlobalDCE GlobalDCE: Don't drop any COMDAT members 2014-10-07 07:07:19 +00:00
GlobalOpt GlobalOpt: Don't drop unused memberes of a Comdat 2014-10-08 07:23:31 +00:00
GVN Relax an assert a bit to avoid a crash on unreachable code. 2014-12-01 02:55:24 +00:00
IndVarSimplify IndVarSimplify: Allow LFTR to fire more often 2014-11-18 02:20:58 +00:00
Inline Revert "Transforms: reapply SVN r219899" 2014-11-04 02:02:14 +00:00
InstCombine Removed extra whitespace. (Testing commit access). NFC. 2014-12-01 09:27:46 +00:00
InstMerge Use Alias Analysis to hoist 2 loads from diamond to the common predecessor basic block. 2014-11-02 08:03:05 +00:00
InstSimplify Simplify pointer comparisons involving memory allocation functions 2014-12-01 23:38:06 +00:00
Internalize Use "weak alias" instead of "alias weak" 2014-07-30 22:51:54 +00:00
IPConstantProp
JumpThreading LazyValueInfo: Actually re-visit partially solved block-values in solveBlockValue() 2014-11-25 17:23:05 +00:00
LCSSA
LICM [LICM] Store sink and indirectbr instructions 2014-11-28 19:47:46 +00:00
LoadCombine Use AA in LoadCombine 2014-11-03 23:19:16 +00:00
LoopDeletion
LoopIdiom Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
LoopReroll
LoopRotate llvm/test/Transforms/LoopRotate/nosimplifylatch.ll: Fix possibly mis-repeatedly-pasted test. 2014-10-29 23:05:12 +00:00
LoopSimplify FileCheckize. NFC. 2014-09-12 17:55:16 +00:00
LoopStrengthReduce Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
LoopUnroll Fix a trip-count overflow issue in LoopUnroll. 2014-11-20 20:19:55 +00:00
LoopUnswitch
LoopVectorize Revert "Masked Vector Load and Store Intrinsics." 2014-11-28 21:29:14 +00:00
LowerAtomic
LowerExpectIntrinsic
LowerInvoke
LowerSwitch Added test for commit r212802 that was missing 2014-07-11 10:36:00 +00:00
Mem2Reg Delete -std-compile-opts. 2014-10-16 20:00:02 +00:00
MemCpyOpt Allow call-slop optzn for destinations with a suitable dereferenceable attribute 2014-10-16 19:43:08 +00:00
MergeFunc Fix crash when looking up the addrspace of GEPs with vector types 2014-09-02 18:47:54 +00:00
MetaRenamer Use "weak alias" instead of "alias weak" 2014-07-30 22:51:54 +00:00
ObjCARC Add back r222061 with a fix. 2014-11-17 02:28:27 +00:00
PartiallyInlineLibCalls PartiallyInlineLibCalls: Check sqrt result type before transforming it. 2014-08-01 23:21:21 +00:00
PhaseOrdering
PruneEH
Reassociate Revert "[Reassociate] As the expression tree is rewritten make sure the operands are" 2014-11-19 23:21:20 +00:00
Reg2Mem
SampleProfile llvm/test/Transforms/SampleProfile/syntax.ll: Relax MISSING-FILE not to 2014-10-30 22:28:46 +00:00
Scalarizer Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
ScalarRepl Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
SCCP SCCP: overdefined calls cannot become constant 2014-11-07 08:54:19 +00:00
SeparateConstOffsetFromGEP/NVPTX [SeparateConstOffsetFromGEP] Fixed a bug related to unsigned modulo 2014-10-25 18:34:03 +00:00
SimplifyCFG Revert r223049, r223050 and r223051 while investigating test failures. 2014-12-01 17:36:43 +00:00
Sink
SLPVectorizer Vectorize a reduction chain feeding into a 'return' statement. 2014-11-19 16:07:38 +00:00
SROA SROA: The alloca type isn't a candidate promotion type for vectors 2014-11-21 02:34:55 +00:00
StripSymbols Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
StructurizeCFG
TailCallElim Fix tail recursion elimination 2014-11-19 13:32:51 +00:00
TailDup
Util [SwitchLowering] Handle multiple destinations on condensed case stmts 2014-11-28 19:47:33 +00:00