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reapply r101364, which has been backed out in r101368

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with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101397 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gabor Greif
2010-04-15 20:51:13 +00:00
parent 83821c8941
commit 2ff961f668
43 changed files with 578 additions and 587 deletions
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2
lib/Transforms/Scalar/MemCpyOptimizer.cpp
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@@ -744,7 +744,7 @@ bool MemCpyOpt::processMemMove(MemMoveInst *M) {
const Type *ArgTys[3] = { M->getRawDest()->getType(),
M->getRawSource()->getType(),
M->getLength()->getType() };
M->setOperand(0,Intrinsic::getDeclaration(Mod, Intrinsic::memcpy, ArgTys, 3));
M->setCalledFunction(Intrinsic::getDeclaration(Mod, Intrinsic::memcpy, ArgTys, 3));
// MemDep may have over conservative information about this instruction, just
// conservatively flush it from the cache.