llvm-svn: 74076

llvm-svn: 74074

computations in loops with multiple exits.

Adjust the testcase for PR4436 so that the relevant portion isn't
optimized away.

llvm-svn: 74073

terminator, instead of after the last phi. This fixes a bug
exposed by ScalarEvolution analyzing more kinds of loops.
This fixes PR4436.

llvm-svn: 74072

llvm-svn: 74071

place to note major API changes (I've noted the
getABITypeSize -> getAllocSize change).

llvm-svn: 74070

llvm-svn: 74068

llvm-svn: 74067

llvm-svn: 74066

llvm-svn: 74065

llvm-svn: 74064

llvm-svn: 74062

and tidy up a few other formatting issues.

llvm-svn: 74060

llvm-svn: 74059

things like:
.section __TEXT,__cstring,cstring_literals

llvm-svn: 74058

This is suboptimal in several aspects, see the commented out assertion.
I need to talk to Daniel about this.

llvm-svn: 74057

Fixed a bug in LiveInterval scaling (failure to scale VNI defs correctly), removed old TODO comments.

llvm-svn: 74054

Fix support for inline asm input / output operand tying when operand spans across multiple registers (e.g. two i64 operands in 32-bit mode).

llvm-svn: 74053

llvm-svn: 74052

llvm-svn: 74051

llvm-svn: 74049

trip counts in more cases.

Generalize ScalarEvolution's isLoopGuardedByCond code to recognize
And and Or conditions, splitting the code out into an
isNecessaryCond helper function so that it can evaluate Ands and Ors
recursively, and make SCEVExpander be much more aggressive about
hoisting instructions out of loops.

test/CodeGen/X86/pr3495.ll has an additional instruction now, but
it appears to be due to an arbitrary register allocation difference.

llvm-svn: 74048

llvm-svn: 74047

llvm-svn: 74046

llvm-svn: 74045

llvm-svn: 74044

llvm-svn: 74043

llvm-svn: 74042

createSCEV. Also, recognize UndefValue in createSCEV.

Change getIntegerSCEV's comment to avoid mentioning FP types,
and re-implement it in terms of getConstant instead of getUnknown.

llvm-svn: 74041

Make sure that the template parameter lists get from the parser down to ActOnFunctionDeclarator for function template definitions

llvm-svn: 74040

llvm-svn: 74039

llvm-svn: 74038

SCEVConstants. This cleanup is a step toward letting getUnknown
be simpler.

llvm-svn: 74037

std::strings.

llvm-svn: 74036

llvm-svn: 74035

llvm-svn: 74034

llvm-svn: 74033

llvm-svn: 74032

preheader is already an instruction.

llvm-svn: 74031

llvm-svn: 74030