James Molloy d594ba0815 Reapply r237539 with a fix for the Chromium build. ... Make sure if we're truncating a constant that would then be sign extended that the sign extension of the truncated constant is the same as the original constant. > Canonicalize min/max expressions correctly. > > This patch introduces a canonical form for min/max idioms where one operand > is extended or truncated. This often happens when the other operand is a > constant. For example: > > %1 = icmp slt i32 %a, i32 0 > %2 = sext i32 %a to i64 > %3 = select i1 %1, i64 %2, i64 0 > > Would now be canonicalized into: > > %1 = icmp slt i32 %a, i32 0 > %2 = select i1 %1, i32 %a, i32 0 > %3 = sext i32 %2 to i64 > > This builds upon a patch posted by David Majenemer > (https://www.marc.info/?l=llvm-commits&m=143008038714141&w=2). That pass > passively stopped instcombine from ruining canonical patterns. This > patch additionally actively makes instcombine canonicalize too. > > Canonicalization of expressions involving a change in type from int->fp > or fp->int are not yet implemented. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237821 91177308-0d34-0410-b5e6-96231b3b80d8		2015-05-20 18:41:25 +00:00
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Hello
InstCombine	Reapply r237539 with a fix for the Chromium build.	2015-05-20 18:41:25 +00:00
Instrumentation	Simplify IRBuilder::CreateCall* by using ArrayRef+initializer_list/braced init only	2015-05-18 22:13:54 +00:00
IPO	Remove the InstructionSimplifierPass immediately after InstructionCombiningPass.	2015-05-19 16:09:11 +00:00
ObjCARC	Change Function::getIntrinsicID() to return an Intrinsic::ID. NFC.	2015-05-20 17:16:39 +00:00
Scalar	Silencing a -Wsign-compare warning; NFC.	2015-05-20 14:53:50 +00:00
Utils	Change Function::getIntrinsicID() to return an Intrinsic::ID. NFC.	2015-05-20 17:16:39 +00:00
Vectorize	Change Function::getIntrinsicID() to return an Intrinsic::ID. NFC.	2015-05-20 17:16:39 +00:00
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