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archived-llvm/test/Transforms
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Davide Italiano 9496ef1fef [SimplifyLibCalls] New transformation: tan(atan(x)) -> x 
This is enabled only under -ffast-math.
So, instead of emitting:
  4007b0:       50                      push   %rax
  4007b1:       e8 8a fd ff ff          callq  400540 <atanf@plt>
  4007b6:       58                      pop    %rax
  4007b7:       e9 94 fd ff ff          jmpq   400550 <tanf@plt>
  4007bc:       0f 1f 40 00             nopl   0x0(%rax)

for:
float mytan(float x) {
  return tanf(atanf(x));
}
we emit a single retq.

Differential Revision:	 http://reviews.llvm.org/D14302


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252098 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-04 23:36:56 +00:00
..
ADCE
[PM] Port ADCE to the new pass manager
2015-10-30 23:13:18 +00:00
AddDiscriminators
Recommit r251680 (also need to update clang test)
2015-10-30 05:07:15 +00:00
AlignmentFromAssumptions
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
ArgumentPromotion
DI: Require subprogram definitions to be distinct
2015-08-28 20:26:49 +00:00
AtomicExpand
[ARM] Emit clrex in the expanded cmpxchg fail block.
2015-09-22 17:22:58 +00:00
BBVectorize
[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible
2015-09-09 17:55:00 +00:00
BDCE
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
BranchFolding
Make the default triple optional by allowing an empty string
2015-09-16 05:34:32 +00:00
CodeExtractor
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
CodeGenPrepare
[CodegenPrepare] Do not rematerialize gc.relocates across different basic blocks
2015-11-03 18:37:40 +00:00
ConstantHoisting
[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction
2015-04-16 23:24:18 +00:00
ConstantMerge
[opaque pointer type] Add textual IR support for explicit type parameter for global aliases
2015-09-11 03:22:04 +00:00
ConstProp
[test] (NFC) Simplify Transforms/ConstProp/calls.ll
2015-08-28 18:04:20 +00:00
CorrelatedValuePropagation
[CVP] Fold return values if possible
2015-11-04 01:43:54 +00:00
DeadArgElim
[DeadArgElim] Split the invoke successor edge
2015-09-23 15:41:09 +00:00
DeadStoreElimination
[DeadStoreElimination] Remove dead zero store to calloc initialized memory
2015-09-23 11:38:44 +00:00
EarlyCSE
[EarlyCSE] Fix handling of target memory intrinsics for CSE'ing loads.
2015-10-07 07:41:29 +00:00
EliminateAvailableExternally
Don't change the visibility when converting a definition to a declaration.
2015-07-13 14:18:22 +00:00
Float2Int
Reapply r233175 and r233183: float2int.
2015-03-27 10:36:57 +00:00
FunctionAttrs
[FunctionAttr] Infer nonnull attributes on returns
2015-08-31 19:44:38 +00:00
GCOVProfiling
DI: Require subprogram definitions to be distinct
2015-08-28 20:26:49 +00:00
GlobalDCE
[opaque pointer type] Add textual IR support for explicit type parameter for global aliases
2015-09-11 03:22:04 +00:00
GlobalOpt
GlobalOpt does not treat externally_initialized globals correctly
2015-10-12 13:20:52 +00:00
GVN
[GVN] Make a test case more robust
2015-10-28 03:20:05 +00:00
IndVarSimplify
Fix PR25372 - teach replaceCongruentPHIs to handle cases where SE evaluates a PHI to a SCEVConstant
2015-11-03 16:27:04 +00:00
Inline
[InlineFunction] Correctly inline TerminatePadInst
2015-10-13 22:08:17 +00:00
InstCombine
[SimplifyLibCalls] New transformation: tan(atan(x)) -> x
2015-11-04 23:36:56 +00:00
InstMerge
[opaque pointer type] Add textual IR support for explicit type parameter to gep operator
2015-03-13 18:20:45 +00:00
InstSimplify
[InstSimplify] sgt on i1s also encodes implication
2015-10-29 03:19:10 +00:00
Internalize
[opaque pointer type] Add textual IR support for explicit type parameter for global aliases
2015-09-11 03:22:04 +00:00
IPConstantProp
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
IRCE
[IRCE] Fix a regression introduced in r232444.
2015-03-24 19:29:18 +00:00
JumpThreading
[JumpThreading] Use dominating conditions to prove implications
2015-10-28 21:27:08 +00:00
LCSSA
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
LICM
Revert "r251451 - [AliasSetTracker] Use mod/ref information for UnknownInstr"
2015-10-28 22:13:41 +00:00
LoadCombine
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
LoopDeletion
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
LoopDistribute
[LAA] Hold bounds via ValueHandles during SCEV expansion
2015-08-21 23:19:57 +00:00
LoopIdiom
Reapply: [LIR] Add support for creating memsets from loops with a negative stride.
2015-10-28 14:38:49 +00:00
LoopInterchange
Add support to interchange loops with reductions.
2015-04-23 04:51:44 +00:00
LoopLoadElim
LLE 6/6: Add LoopLoadElimination pass
2015-11-03 23:50:08 +00:00
LoopReroll
[LoopReroll] Ignore debug intrinsics
2015-09-28 17:03:23 +00:00
LoopRotate
DI: Require subprogram definitions to be distinct
2015-08-28 20:26:49 +00:00
LoopSimplify
DI: Require subprogram definitions to be distinct
2015-08-28 20:26:49 +00:00
LoopStrengthReduce
[ScalarEvolutionExpander] PHI on a catchpad can be used on both edges
2015-10-27 19:48:28 +00:00
LoopUnroll
Revert "[IndVarSimplify] Rewrite loop exit values with their initial values from loop preheader"
2015-11-03 07:14:39 +00:00
LoopUnswitch
Teach LoopUnswitch not to perform non-trivial unswitching on loops containing convergent operations.
2015-10-09 18:40:20 +00:00
LoopVectorize
LoopVectorizer - skip 'bitcast' between GEP and load.
2015-11-03 10:29:34 +00:00
LowerAtomic
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction
2015-02-27 21:17:42 +00:00
LowerBitSets
[opaque pointer type] Add textual IR support for explicit type parameter for global aliases
2015-09-11 03:22:04 +00:00
LowerExpectIntrinsic
[PM] Port StripDeadPrototypes to the new pass manager
2015-10-30 23:28:12 +00:00
LowerInvoke
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
LowerSwitch
[LowerSwitch] Fix a bug when LowerSwitch deletes the default block
2015-08-11 18:12:26 +00:00
Mem2Reg
DI: Update tests before adding !dbg subprogram attachments
2015-08-28 23:32:00 +00:00
MemCpyOpt
[MemCpyOpt] Fix wrong merging adjacent nontemporal stores into memset calls.
2015-10-09 10:53:41 +00:00
MergeFunc
MergeFunctions: Clear GlobalNumbers ValueMap
2015-10-05 17:26:36 +00:00
MetaRenamer
[opaque pointer type] Add textual IR support for explicit type parameter for global aliases
2015-09-11 03:22:04 +00:00
NaryReassociate
[NaryReassociate] SeenExprs records WeakVH
2015-10-01 03:51:44 +00:00
ObjCARC
[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible
2015-09-09 17:55:00 +00:00
PartiallyInlineLibCalls
PartiallyInlineLibCalls: Check sqrt result type before transforming it.
2014-08-01 23:21:21 +00:00
PhaseOrdering
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
PlaceSafepoints
[PlaceSafepoints] Make the width of a counted loop settable.
2015-09-15 01:42:48 +00:00
PruneEH
[PruneEH] A naked, noinline function can return via InlineAsm
2015-06-27 07:52:53 +00:00
Reassociate
Fix a bunch of trivial cases of 'CHECK[^:]*$' in the tests. NFCI
2015-08-10 19:01:27 +00:00
Reg2Mem
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
RewriteStatepointsForGC
[RS4GC] Strip noalias attribute after statepoint rewrite
2015-10-26 19:06:01 +00:00
SafeStack
[safestack] Fast access to the unsafe stack pointer on AArch64/Android.
2015-10-26 18:28:25 +00:00
SampleProfile
SamplePGO - Count sample records in embedded profiles when computing coverage.
2015-10-31 21:53:58 +00:00
Scalarizer
DI: Require subprogram definitions to be distinct
2015-08-28 20:26:49 +00:00
ScalarRepl
DI: Require subprogram definitions to be distinct
2015-08-28 20:26:49 +00:00
SCCP
[opaque pointer type] Add textual IR support for explicit type parameter for global aliases
2015-09-11 03:22:04 +00:00
SeparateConstOffsetFromGEP
[SeparateConstOffsetFromGEP] sext(a)+sext(b) => sext(a+b) when a+b can't sign-overflow.
2015-08-14 02:02:05 +00:00
SimplifyCFG
[SimplifyCFG] Merge conditional stores
2015-11-04 15:28:04 +00:00
Sink
Teach the IR Sink pass to (conservatively) respect convergent annotations.
2015-06-01 17:20:31 +00:00
SLPVectorizer
[SLP] Be more aggressive about reduction width selection.
2015-10-27 17:59:03 +00:00
SpeculativeExecution
Add a speculative execution pass
2015-05-15 17:54:48 +00:00
SROA
[PM] Port SROA to the new pass manager.
2015-09-12 09:09:14 +00:00
StraightLineStrengthReduce
[SeparateConstOffsetFromGEP] strengthen the inbounds attribute
2015-08-13 18:48:49 +00:00
StripDeadPrototypes
[PM] Port StripDeadPrototypes to the new pass manager
2015-10-30 23:28:12 +00:00
StripSymbols
DI: Require subprogram definitions to be distinct
2015-08-28 20:26:49 +00:00
StructurizeCFG
Fix CHECK directives that weren't checking.
2015-08-31 21:10:35 +00:00
TailCallElim
Fix a bunch of trivial cases of 'CHECK[^:]*$' in the tests. NFCI
2015-08-10 19:01:27 +00:00
TailDup
[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction
2015-04-16 23:24:18 +00:00
Util
Changed renaming of local symbols by inserting a dot vefore the numeric suffix.
2015-05-12 16:47:30 +00:00