Hal Finkel 3d03d60ca8 Add functions for finding ephemeral values ... This adds a set of utility functions for collecting 'ephemeral' values. These are LLVM IR values that are used only by @llvm.assume intrinsics (directly or indirectly), and thus will be removed prior to code generation, implying that they should be considered free for certain purposes (like inlining). The inliner's cost analysis, and a few other passes, have been updated to account for ephemeral values using the provided functionality. This functionality is important for the usability of @llvm.assume, because it limits the "non-local" side-effects of adding llvm.assume on inlining, loop unrolling, etc. (these are hints, and do not generate code, so they should not directly contribute to estimates of execution cost). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217335 91177308-0d34-0410-b5e6-96231b3b80d8		2014-09-07 13:49:57 +00:00
..
ADCE
AddDiscriminators	Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks.	2014-08-21 22:45:21 +00:00
ArgumentPromotion	Don't promote byval pointer arguments when padding matters	2014-08-28 22:42:00 +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
CodeExtractor
CodeGenPrepare	CodeGenPrep: fall back to MVT::Other if instruction's type isn't an EVT.	2014-07-29 10:20:22 +00:00
ConstantHoisting
ConstantMerge
ConstProp	Fix a bug around truncating vector in const prop.	2014-08-21 02:12:35 +00:00
CorrelatedValuePropagation
DeadArgElim	musttail: Don't eliminate varargs packs if there is a forwarding call	2014-08-26 00:59:51 +00:00
DeadStoreElimination	Relax the constraint more in MemoryDependencyAnalysis.cpp	2014-08-29 20:32:58 +00:00
DebugIR
EarlyCSE
FunctionAttrs	[optnone] Make the optnone attribute effective at suppressing function	2014-08-13 10:49:33 +00:00
GCOVProfiling
GlobalDCE	Remove dangling initializers in GlobalDCE	2014-08-25 17:51:14 +00:00
GlobalOpt	GlobalOpt: Optimize in the face of insertvalue/extractvalue	2014-08-08 05:50:43 +00:00
GVN	Relax the constraint more in MemoryDependencyAnalysis.cpp	2014-08-29 20:32:58 +00:00
IndVarSimplify	IndVarSimplify: Don't let LFTR compare against a poison value	2014-09-03 23:03:18 +00:00
Inline	Add functions for finding ephemeral values	2014-09-07 13:49:57 +00:00
InstCombine	InstCombine: Remove a special case pattern	2014-09-05 06:09:24 +00:00
InstMerge
InstSimplify	Revert: [APFloat] Fixed a bug in method 'fusedMultiplyAdd'.	2014-09-02 17:22:49 +00:00
Internalize	Use "weak alias" instead of "alias weak"	2014-07-30 22:51:54 +00:00
IPConstantProp
JumpThreading	In LVI(Lazy Value Info), originally value on a BB can only be caculated once,	2014-08-11 05:02:04 +00:00
LCSSA
LICM	LICM: Don't crash when an instruction is used by an unreachable BB	2014-09-02 16:22:00 +00:00
LoadCombine
LoopDeletion
LoopIdiom
LoopReroll
LoopRotate
LoopSimplify
LoopStrengthReduce
LoopUnroll	Add functions for finding ephemeral values	2014-09-07 13:49:57 +00:00
LoopUnswitch
LoopVectorize	Add a convenience method to copy wrapping, exact, and fast-math flags (NFC).	2014-09-01 18:44:57 +00:00
LowerAtomic
LowerExpectIntrinsic
LowerInvoke
LowerSwitch
Mem2Reg
MemCpyOpt	Fix a really bad miscompile introduced in r216865 - the else-if logic	2014-09-01 10:09:18 +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
PartiallyInlineLibCalls	PartiallyInlineLibCalls: Check sqrt result type before transforming it.	2014-08-01 23:21:21 +00:00
PhaseOrdering
PruneEH
Reassociate	Reassociate x + -0.1234 * y into x - 0.1234 * y	2014-08-21 10:45:30 +00:00
Reg2Mem
SampleProfile	Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks.	2014-08-21 22:45:21 +00:00
Scalarizer
ScalarRepl
SCCP
SeparateConstOffsetFromGEP/NVPTX
SimplifyCFG	Make fabs safe to speculatively execute	2014-08-29 16:01:17 +00:00
Sink
SLPVectorizer	Preserve IR flags (nsw, nuw, exact, fast-math) in SLP vectorizer (PR20802).	2014-09-03 17:40:30 +00:00
SROA	SROA: Don't insert instructions before a PHI	2014-09-01 21:20:14 +00:00
StripSymbols
StructurizeCFG
TailCallElim
TailDup
Util	utils: Fix segfault in flattencfg	2014-08-13 20:31:53 +00:00