Add bundle aware API for querying instruction properties and switch the code
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
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp
index 46ed082..4dc8173 100644
--- a/lib/CodeGen/MachineBasicBlock.cpp
+++ b/lib/CodeGen/MachineBasicBlock.cpp
@@ -538,8 +538,8 @@
// Barrier is predicated and thus no longer an actual control barrier. This
// is over-conservative though, because if an instruction isn't actually
// predicated we could still treat it like a barrier.
- return empty() || !back().getDesc().isBarrier() ||
- back().getDesc().isPredicable();
+ return empty() || !back().isBarrier() ||
+ back().isPredicable();
}
// If there is no branch, control always falls through.
@@ -737,7 +737,7 @@
MachineBasicBlock::insn_iterator I = insn_end();
while (I != insn_begin()) {
--I;
- if (!I->getDesc().isTerminator()) break;
+ if (!I->isTerminator()) break;
// Scan the operands of this machine instruction, replacing any uses of Old
// with New.