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fix PR3537: if resetting bbi back to the start of a block, we need to

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forget about already inserted expressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64362 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-02-12 06:56:08 +00:00
parent afa77434bb
commit 65c02fbf9b
2 changed files with 44 additions and 4 deletions
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13
lib/Transforms/Scalar/CodeGenPrepare.cpp
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@@ -1241,11 +1241,13 @@ bool CodeGenPrepare::OptimizeMemoryInst(Instruction *MemoryInst, Value *Addr,
// computation.
Value *&SunkAddr = SunkAddrs[Addr];
if (SunkAddr) {
DEBUG(cerr << "CGP: Reusing nonlocal addrmode: " << AddrMode << "\n");
DEBUG(cerr << "CGP: Reusing nonlocal addrmode: " << AddrMode << " for "
<< *MemoryInst);
if (SunkAddr->getType() != Addr->getType())
SunkAddr = new BitCastInst(SunkAddr, Addr->getType(), "tmp", InsertPt);
} else {
DEBUG(cerr << "CGP: SINKING nonlocal addrmode: " << AddrMode << "\n");
DEBUG(cerr << "CGP: SINKING nonlocal addrmode: " << AddrMode << " for "
<< *MemoryInst);
const Type *IntPtrTy = TLI->getTargetData()->getIntPtrType();
Value *Result = 0;
@@ -1505,9 +1507,12 @@ bool CodeGenPrepare::OptimizeBlock(BasicBlock &BB) {
if (TLI && isa<InlineAsm>(CI->getCalledValue()))
if (const TargetAsmInfo *TAI =
TLI->getTargetMachine().getTargetAsmInfo()) {
if (TAI->ExpandInlineAsm(CI))
if (TAI->ExpandInlineAsm(CI)) {
BBI = BB.begin();
else
// Avoid processing instructions out of order, which could cause
// reuse before a value is defined.
SunkAddrs.clear();
} else
// Sink address computing for memory operands into the block.
MadeChange |= OptimizeInlineAsmInst(I, &(*CI), SunkAddrs);
}