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Add bundle aware API for querying instruction properties and switch the code

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generator to it. For non-bundle instructions, these behave exactly the same
as the MC layer API.

For properties like mayLoad / mayStore, look into the bundle and if any of the
bundled instructions has the property it would return true.
For properties like isPredicable, only return true if *all* of the bundled
instructions have the property.
For properties like canFoldAsLoad, isCompare, conservatively return false for
bundles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146026 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2011-12-07 07:15:52 +00:00
parent 5729c5848c
commit 5a96b3dad2
69 changed files with 596 additions and 354 deletions
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lib/CodeGen/ExecutionDepsFix.cpp
+1 -1
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@@ -454,7 +454,7 @@ void ExeDepsFix::processDefs(MachineInstr *MI, bool Kill) {
assert(!MI->isDebugValue() && "Won't process debug values");
const MCInstrDesc &MCID = MI->getDesc();
for (unsigned i = 0,
e = MCID.isVariadic() ? MI->getNumOperands() : MCID.getNumDefs();
e = MI->isVariadic() ? MI->getNumOperands() : MCID.getNumDefs();
i != e; ++i) {
MachineOperand &MO = MI->getOperand(i);
if (!MO.isReg())