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Fix a really nasty bug that was breaking ijpeg in LLC mode. We were incorrectly

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folding load instructions into other instructions across free instruction
boundaries.  Perhaps this will also fix the other strange failures?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12494 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-03-18 06:29:54 +00:00
parent aa7ab53b99
commit 85c84e759e
2 changed files with 4 additions and 0 deletions
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2
lib/Target/X86/InstSelectSimple.cpp
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@ -1422,6 +1422,8 @@ static bool isSafeToFoldLoadIntoInstruction(LoadInst &LI, Instruction &User) {
// really use alias analysis here, but for now we just do something simple.
for (++It; It != BasicBlock::iterator(&User); ++It) {
switch (It->getOpcode()) {
case Instruction::Malloc:
case Instruction::Free:
case Instruction::Store:
case Instruction::Call:
case Instruction::Invoke:

2
lib/Target/X86/X86ISelSimple.cpp
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@ -1422,6 +1422,8 @@ static bool isSafeToFoldLoadIntoInstruction(LoadInst &LI, Instruction &User) {
// really use alias analysis here, but for now we just do something simple.
for (++It; It != BasicBlock::iterator(&User); ++It) {
switch (It->getOpcode()) {
case Instruction::Malloc:
case Instruction::Free:
case Instruction::Store:
case Instruction::Call:
case Instruction::Invoke: