Chris Lattner daa02ab70c Make simplifycfg reprocess newly formed "br (cond1 | cond2)" conditions ... when simplifying, allowing them to be eagerly turned into switches. This is the last step required to get "Example 7" from this blog post: http://blog.regehr.org/archives/320 On X86, we now generate this machine code, which (to my eye) seems better than the ICC generated code: _crud: ## @crud ## BB#0: ## %entry cmpb $33, %dil jb LBB0_4 ## BB#1: ## %switch.early.test addb $-34, %dil cmpb $58, %dil ja LBB0_3 ## BB#2: ## %switch.early.test movzbl %dil, %eax movabsq $288230376537592865, %rcx ## imm = 0x400000017001421 btq %rax, %rcx jb LBB0_4 LBB0_3: ## %lor.rhs xorl %eax, %eax ret LBB0_4: ## %lor.end movl $1, %eax ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121690 91177308-0d34-0410-b5e6-96231b3b80d8		2010-12-13 07:00:06 +00:00
..
ADCE
ArgumentPromotion	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
BlockPlacement
BranchFolding
CodeExtractor
CodeGenPrepare	Add a test for CodeGenPrepare's ability to look through PHI nodes when performing	2010-11-19 22:34:53 +00:00
ConstantMerge	fix PR8144, a bug where constant merge would merge globals marked	2010-09-15 00:30:11 +00:00
ConstProp	Teach ConstantFoldInstruction() how to fold insertvalue and extractvalue.	2010-11-29 20:36:52 +00:00
CorrelatedValuePropagation	Update testcase since we're no longer doing the constant forwarding inline with correlated value propagation.	2010-10-29 21:18:23 +00:00
DeadArgElim
DeadStoreElimination	Fix PR8728, a miscompilation I recently introduced. When optimizing	2010-12-06 01:48:06 +00:00
FunctionAttrs	Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis	2010-11-10 01:02:18 +00:00
GlobalDCE
GlobalOpt	reapply r121100 with a tweak to constant fold ConstExprs with TargetData	2010-12-07 04:33:29 +00:00
GVN	Completely rework the datastructure GVN uses to represent the value number to leader mapping. Previously,	2010-11-18 18:32:40 +00:00
IndVarSimplify	Remove LoopIndexSplit pass. It is neither maintained nor used by anyone.	2010-10-07 23:29:37 +00:00
Inline	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
InstCombine	Generalize the and-icmp-select instcombine further by allowing selects of the form	2010-12-11 10:49:22 +00:00
Internalize
IPConstantProp
JumpThreading	Implement jump threading of 'indirectbr' by keeping track of whether we're looking for ConstantInt*s or BlockAddress*s.	2010-12-06 23:36:56 +00:00
LCSSA
LICM	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
LoopDeletion
LoopRotate
LoopSimplify
LoopStrengthReduce
LoopUnroll
LoopUnswitch	Factor code for testing whether replacing one value with another	2010-11-18 19:59:41 +00:00
LowerAtomic
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg
MemCpyOpt	enhance memcpyopt to zap memcpy's that have the same src/dst.	2010-12-09 07:45:45 +00:00
MergeFunc
PartialSpecialize	Now using a variant of the existing inlining heuristics to decide whether to create a given specialization of a function in PartialSpecialization. If the total performance bonus across all callsites passing the same constant exceeds the specialization cost, we create the specialization.	2010-10-09 22:06:36 +00:00
PruneEH
Reassociate
ScalarRepl	Treat a call of function pointer like a load of the pointer when considering	2010-11-24 22:04:20 +00:00
SCCP
SimplifyCFG	Make simplifycfg reprocess newly formed "br (cond1 | cond2)" conditions	2010-12-13 07:00:06 +00:00
SimplifyLibCalls	Add a puts optimization that converts puts() to putchar('\n').	2010-11-30 06:19:18 +00:00
Sink	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
SRETPromotion
StripSymbols
TailCallElim
TailDup