maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/test/Transforms
History
Sanjay Patel 2e33bbaff0 [InstCombine] lshr (sext iM X to iN), N-M --> zext (ashr X, min(N-M, M-1)) to iN 
This is a follow-up to https://reviews.llvm.org/D33879 / https://reviews.llvm.org/rL304939 ,
and was discussed in https://reviews.llvm.org/D33338.

We prefer this form because a narrower shift may be cheaper, and we can more easily fold a
zext than a sext.

http://rise4fun.com/Alive/slVe

Name: shz
%s = sext i8 %x to i12
%r = lshr i12 %s, 4
=>
%a = ashr i8 %x, 4
%r = zext i8 %a to i12 

llvm-svn: 305190
 		2017-06-12 14:23:43 +00:00
..
ADCE Fix a test to check assembly output instead of bitcode. 2017-03-31 23:22:19 +00:00
AddDiscriminators [AddDiscriminators] Assign discriminators to MemIntrinsic calls. 2017-04-11 19:07:30 +00:00
AlignmentFromAssumptions
…
ArgumentPromotion [ArgPromotion] Add a testcase for PR32917 2017-05-05 08:40:24 +00:00
AtomicExpand Add address space mangling to lifetime intrinsics 2017-04-10 20:18:21 +00:00
BBVectorize Replace hardcoded intrinsic list with speculatable attribute. 2017-05-03 02:26:10 +00:00
BDCE [Analysis] Support bitreverse in -demanded-bits pass 2017-04-13 16:44:25 +00:00
BranchFolding
…
CodeExtractor [PartialInlining] Support shrinkwrap life_range markers 2017-06-11 20:46:05 +00:00
CodeGenPrepare [CGP, x86] add tests for potential memcmp expansion; NFC 2017-06-08 20:40:39 +00:00
ConstProp [X86] Replace 'REQUIRES: x86' in tests with 'REQUIRES: x86-registered-target' which seems to be the correct way to make them run on an x86 build. 2017-06-04 08:21:58 +00:00
ConstantHoisting [ConstHoisting] Add BFI in constanthoisting pass and select the best insertion 2017-04-21 15:50:16 +00:00
ConstantMerge Don't merge global constants with non-dbg metadata. 2017-03-09 00:03:37 +00:00
Coroutines [coroutines] PR33271: Remove stray coro.save intrinsics during CoroSplit 2017-06-02 02:18:36 +00:00
CorrelatedValuePropagation Add address space mangling to lifetime intrinsics 2017-04-10 20:18:21 +00:00
CountingFunctionInserter
…
CrossDSOCFI
…
DCE [InstSimplify] Don't constant fold or DCE calls that are marked nobuiltin 2017-06-09 23:18:11 +00:00
DeadArgElim Replace hardcoded intrinsic list with speculatable attribute. 2017-05-03 02:26:10 +00:00
DeadStoreElimination Add address space mangling to lifetime intrinsics 2017-04-10 20:18:21 +00:00
EarlyCSE InstructionSimplify: don't speculate about Constants changing. 2017-05-22 21:28:08 +00:00
EliminateAvailableExternally
…
Float2Int
…
ForcedFunctionAttrs
…
FunctionAttrs Support arbitrary address space pointers in masked gather/scatter intrinsics. 2017-05-03 12:28:54 +00:00
FunctionImport Revert r295861, "[ModuleSummaryAnalysis] Don't crash when referencing unnamed globals." 2017-05-03 00:18:48 +00:00
GCOVProfiling [IR] Remove the DIExpression field from DIGlobalVariable. 2016-12-20 02:09:43 +00:00
GVN Revert rL304050. It may break sanitizer bootstrap. Revert it for now while investigating. 2017-05-31 21:29:33 +00:00
GVNHoist Disable GVN Hoist due to still more bugs being found in it. There is 2017-04-27 00:28:03 +00:00
GVNSink Changed a comparison operator for std::stable_sort to implement strict weak ordering. 2017-06-08 17:27:40 +00:00
GlobalDCE [PM] Teach the PGO instrumentation pasess to run GlobalDCE before 2017-05-25 07:15:09 +00:00
GlobalMerge Renumber testcase metadata nodes after r290153. 2016-12-22 00:45:21 +00:00
GlobalOpt [GlobalOpt] Correctly update metadata when localizing a global. 2017-04-27 18:39:08 +00:00
GlobalSplit Fix one-after-the-end type metadata handling in globalsplit. 2017-03-07 22:18:48 +00:00
GuardWidening
…
IPConstantProp [IPCP] Don't propagate return value for naked functions. 2017-02-04 19:44:14 +00:00
IRCE [IRCE] Canonicalize pre/post loops after the blocks are added into parent loop 2017-06-06 14:54:01 +00:00
IndVarSimplify [IndVars] Add an option to be able to disable LFTR 2017-06-09 06:11:59 +00:00
InferAddressSpaces InferAddressSpaces: Avoid assertion failure with replacing identical 2017-06-08 13:20:55 +00:00
InferFunctionAttrs [TLI] Add declarations for various math header file routines from math-finite.h that create '__<func>_finite as functions 2017-05-12 22:11:12 +00:00
Inline Inliner: Don't touch indirect calls 2017-06-09 03:29:20 +00:00
InstCombine [InstCombine] lshr (sext iM X to iN), N-M --> zext (ashr X, min(N-M, M-1)) to iN 2017-06-12 14:23:43 +00:00
InstMerge Remove the load hoisting code of MLSM, it is completely subsumed by GVNHoist 2017-01-24 19:55:36 +00:00
InstNamer Add basic test case for -instnamer 2017-05-08 23:18:46 +00:00
InstSimplify [InstSimplify] Constant fold the new GEP in SimplifyGEPInst. 2017-06-06 10:17:14 +00:00
InterleavedAccess Added tests for X86InterleavedStore. 2017-06-06 21:08:00 +00:00
Internalize
…
JumpThreading [JumpThreading] Safely replace uses of condition 2017-05-23 13:36:25 +00:00
LCSSA
…
LICM Revert "Add pthread_self function prototype and make it speculatable." 2017-05-21 00:37:55 +00:00
LoadCombine [LoadCombine] Avoid analysing dead basic blocks 2017-04-12 08:07:55 +00:00
LoadStoreVectorizer Skip bitcasts while looking for GEP in LoadStoreVectorizer 2017-04-25 18:00:08 +00:00
LoopDataPrefetch
…
LoopDeletion [Loop Deletion] Delete loops that are never executed 2017-05-03 11:47:11 +00:00
LoopDistribute Move test of lazy BFI with ORE to a generic directory 2017-01-13 00:16:23 +00:00
LoopIdiom [LoopIdiom] Move X86 specific atomic memcpy test to the X86 directory 2017-06-06 17:46:41 +00:00
LoopInterchange
…
LoopLoadElim [PM] Port LoopLoadElimination to the new pass manager and wire it into 2017-01-27 01:32:26 +00:00
LoopPredication Loop predication expand both sides of the widened condition 2017-02-27 15:44:49 +00:00
LoopReroll
…
LoopRotate Cleanup tests to not share a DISubprogram between multiple Functions. 2017-05-04 16:24:31 +00:00
LoopSimplify [BasicBlockUtils] Use getFirstNonPHIOrDbg to set debugloc for instructions created in SplitBlockPredecessors 2017-02-14 21:10:40 +00:00
LoopSimplifyCFG
…
LoopStrengthReduce Fix PR23384 (part 3 of 3) 2017-06-06 20:04:16 +00:00
LoopUnroll [LoopUnroll] Fix a test. REQUIRE should be REQUIRES. 2017-05-12 15:30:58 +00:00
LoopUnswitch [LoopUnswitch] Don't remove instructions with side effects. 2017-04-29 00:12:18 +00:00
LoopVectorize [LoopVectorize] Don't preserve nsw/nuw flags on shrunken ops. 2017-06-09 03:56:15 +00:00
LoopVersioning [LAA] Correctly return a half-open range in expandBounds 2017-04-05 09:24:26 +00:00
LoopVersioningLICM [LAA] Correctly return a half-open range in expandBounds 2017-04-05 09:24:26 +00:00
LowerAtomic
…
LowerExpectIntrinsic Fix builin_expect lowering bug 2017-06-07 18:32:24 +00:00
LowerGuardIntrinsic
…
LowerInvoke
…
LowerSwitch LowerSwitch: Fix producing invalid IR on unreachable code 2017-04-21 23:54:12 +00:00
LowerTypeTests [CFI] Remove LinkerSubsectionsViaSymbols. 2017-06-08 23:38:22 +00:00
Mem2Reg Add test coverage for mem2reg dbg.declare lowering. 2017-04-21 22:13:55 +00:00
MemCpyOpt Add address space mangling to lifetime intrinsics 2017-04-10 20:18:21 +00:00
MergeFunc MergeFunctions: Preserve debug info in thunks, under option -mergefunc-preserve-debug-info 2017-01-21 02:02:56 +00:00
MetaRenamer [MetaRenamer] Don't rename library functions. 2017-03-23 23:21:07 +00:00
NameAnonGlobals
…
NaryReassociate Revert @llvm.assume with operator bundles (r289755-r289757) 2016-12-19 08:22:17 +00:00
NewGVN NewGVN: Fix PR/33187. This is a bug caused by two things: 2017-06-06 17:15:28 +00:00
ObjCARC Replace hardcoded intrinsic list with speculatable attribute. 2017-05-03 02:26:10 +00:00
PGOProfile [PartialInlining] Emit branch info and profile data as remarks 2017-06-01 18:58:50 +00:00
PartiallyInlineLibCalls Add positive test for sqrt "partial inlining". NFC. 2017-01-04 21:24:56 +00:00
PhaseOrdering Make globalaa-retained.ll test catching more cases. 2017-04-18 13:29:26 +00:00
PlaceSafepoints
…
PreISelIntrinsicLowering
…
PruneEH
…
Reassociate [Reassociate] Add negated value of negative constant to the Duplicates list. 2017-02-23 18:49:03 +00:00
Reg2Mem
…
RewriteStatepointsForGC [RSForGC] Handle vector GEPs 2017-03-17 00:55:53 +00:00
SCCP [SCCP] Resolve indirect branch target when possible. 2017-04-10 00:33:25 +00:00
SLPVectorizer [X86][SLM] Add SLM arithmetic vectorization tests 2017-06-10 19:16:09 +00:00
SROA [SROA] Fix APInt size when load/store have different address space 2017-06-09 20:46:29 +00:00
SafeStack [safestack] Disable stack coloring by default. 2017-05-19 20:58:48 +00:00
SampleProfile Do not early-inline recursive calls in sample profile loader. 2017-06-08 20:11:57 +00:00
Scalarizer [Scalarizer] Handle scalar arguments in vector GEP 2017-03-31 06:29:49 +00:00
SeparateConstOffsetFromGEP AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel 2017-03-21 21:39:51 +00:00
SimpleLoopUnswitch [PM/Unswitch] Fix a bug in the domtree update logic for the new unswitch 2017-05-25 06:33:36 +00:00
SimplifyCFG [ValueTracking] Teach isSafeToSpeculativelyExecute() about the speculatable attribute 2017-04-28 21:13:09 +00:00
Sink [Sink] Fix predicate in legality check 2017-06-09 19:31:10 +00:00
SpeculativeExecution Revert r301950: SpeculativeExecution: Stop using whitelist for costs 2017-05-10 12:30:07 +00:00
StraightLineStrengthReduce AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel 2017-03-21 21:39:51 +00:00
StripDeadPrototypes
…
StripSymbols [StripDeadDebug/DIFinder] Track inlined SPs 2017-04-11 13:32:11 +00:00
StructurizeCFG Revert "StructurizeCFG: Directly invert cmp instructions" 2017-04-24 20:25:01 +00:00
TailCallElim
…
ThinLTOBitcodeWriter Write summaries for merged modules when splitting modules for ThinLTO. 2017-06-08 23:01:49 +00:00
Util Introduce the new feature "abi-breaking-checks" to satisfy -reverse-iterate in llvm/test/Transforms/Util/PredicateInfo/ 2017-06-07 00:22:52 +00:00
WholeProgramDevirt Skip CFI for dead functions. 2017-06-02 18:24:23 +00:00