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4d2a706176
llvm/test/Transforms
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Chandler Carruth 4d2a706176 Move previously dead code to handle computing the known bits of an alias 
up to where it actually works as intended. The problem is that
a GlobalAlias isa GlobalValue and so the prior block handled all of the
cases.

This allows us to constant fold based on the actual constant expression
in the global alias. As an example, see the last function in the newly
added test case which explicitly aligns an unaligned pointer using
constant expression math. Without this change, we fail to see that and
fold an alignment test to zero.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220164 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-19 09:06:56 +00:00
..
ADCE [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
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 Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
BranchFolding Delete -std-compile-opts. 2014-10-16 20:00:02 +00:00
CodeExtractor [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
CodeGenPrepare CodeGenPrep: fall back to MVT::Other if instruction's type isn't an EVT. 2014-07-29 10:20:22 +00:00
ConstantHoisting [ConstantHoisting][X86] Improve the cost model for small constants with large types (i64 and above). 2014-06-10 00:32:29 +00:00
ConstantMerge Remove the linker_private and linker_private_weak linkages. 2014-03-13 23:18:37 +00:00
ConstProp Fix a bug around truncating vector in const prop. 2014-08-21 02:12:35 +00:00
CorrelatedValuePropagation [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +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 [DSE] Remove no-data-layout-only type-based overlap checking 2014-10-17 11:56:00 +00:00
DebugIR Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
EarlyCSE [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
FunctionAttrs [optnone] Make the optnone attribute effective at suppressing function 2014-08-13 10:49:33 +00:00
GCOVProfiling Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +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 the constraint more in MemoryDependencyAnalysis.cpp 2014-08-29 20:32:58 +00:00
IndVarSimplify Revert "r219834 - Teach ScalarEvolution to sharpen range information" 2014-10-15 23:46:04 +00:00
Inline Revert "TRE: make TRE a bit more aggressive" 2014-10-17 21:25:48 +00:00
InstCombine Move previously dead code to handle computing the known bits of an alias 2014-10-19 09:06:56 +00:00
InstMerge MergedLoadStoreMotion pass 2014-07-18 19:13:09 +00:00
InstSimplify Revert "r216914 - Revert: [APFloat] Fixed a bug in method 'fusedMultiplyAdd'" 2014-10-14 19:23:07 +00:00
Internalize Use "weak alias" instead of "alias weak" 2014-07-30 22:51:54 +00:00
IPConstantProp No need for those tests to go thru llvm-as and/or llvm-dis. 2014-05-27 22:03:28 +00:00
JumpThreading [LVI] Check for @llvm.assume dominating the edge branch 2014-10-14 16:04:49 +00:00
LCSSA [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LICM Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
LoadCombine Add LoadCombine pass. 2014-05-29 01:55:07 +00:00
LoopDeletion [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LoopIdiom Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
LoopReroll Fix loop rerolling pass failure with non-consant loop lower bound 2014-01-03 17:20:01 +00:00
LoopRotate Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +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 This patch de-pessimizes the calculation of loop trip counts in 2014-10-10 17:39:11 +00:00
LoopUnswitch [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LoopVectorize [LoopVectorize] Ignore @llvm.assume for cost estimates and legality 2014-10-14 22:59:49 +00:00
LowerAtomic IR: add "cmpxchg weak" variant to support permitted failure. 2014-06-13 14:24:07 +00:00
LowerExpectIntrinsic Lower llvm.expect intrinsic correctly for i1 2014-02-02 22:43:55 +00:00
LowerInvoke Remove LowerInvoke's obsolete "-enable-correct-eh-support" option 2014-03-20 19:54:47 +00:00
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 Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
PartiallyInlineLibCalls PartiallyInlineLibCalls: Check sqrt result type before transforming it. 2014-08-01 23:21:21 +00:00
PhaseOrdering [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
PruneEH [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
Reassociate [Reassociate] Don't canonicalize X - undef to X + (-undef). 2014-10-09 20:06:29 +00:00
Reg2Mem [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
SampleProfile Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +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: update for cmpxchg returning { iN, i1 } now. 2014-06-13 14:54:09 +00:00
SeparateConstOffsetFromGEP/NVPTX Partially revert r210444 due to performance regression 2014-07-16 23:25:00 +00:00
SimplifyCFG Switch to select optimization for two-case switches 2014-10-14 01:58:26 +00:00
Sink Sink: Don't sink static allocas from the entry block 2014-03-21 15:51:51 +00:00
SLPVectorizer [SLPVectorize] Basic ephemeral-value awareness 2014-10-15 17:35:01 +00:00
SROA [SROA] Change how SROA does vector-based promotion of allocas to handle 2014-10-18 00:44:02 +00:00
StripSymbols Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
StructurizeCFG StructurizeCFG: Fix verification failure with some loops. 2013-11-22 19:24:39 +00:00
TailCallElim Fix a long-standing miscompile in the load analysis that was uncovered 2014-10-19 08:17:50 +00:00
TailDup Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
Util utils: Fix segfault in flattencfg 2014-08-13 20:31:53 +00:00