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/TailDuplication.cpp b/lib/CodeGen/TailDuplication.cpp
index adfce86..031377b 100644
--- a/lib/CodeGen/TailDuplication.cpp
+++ b/lib/CodeGen/TailDuplication.cpp
@@ -553,7 +553,7 @@
bool HasIndirectbr = false;
if (!TailBB.empty())
- HasIndirectbr = TailBB.back().getDesc().isIndirectBranch();
+ HasIndirectbr = TailBB.back().isIndirectBranch();
if (HasIndirectbr && PreRegAlloc)
MaxDuplicateCount = 20;
@@ -563,19 +563,19 @@
unsigned InstrCount = 0;
for (MachineBasicBlock::iterator I = TailBB.begin(); I != TailBB.end(); ++I) {
// Non-duplicable things shouldn't be tail-duplicated.
- if (I->getDesc().isNotDuplicable())
+ if (I->isNotDuplicable())
return false;
// Do not duplicate 'return' instructions if this is a pre-regalloc run.
// A return may expand into a lot more instructions (e.g. reload of callee
// saved registers) after PEI.
- if (PreRegAlloc && I->getDesc().isReturn())
+ if (PreRegAlloc && I->isReturn())
return false;
// Avoid duplicating calls before register allocation. Calls presents a
// barrier to register allocation so duplicating them may end up increasing
// spills.
- if (PreRegAlloc && I->getDesc().isCall())
+ if (PreRegAlloc && I->isCall())
return false;
if (!I->isPHI() && !I->isDebugValue())
@@ -610,7 +610,7 @@
++I;
if (I == E)
return true;
- return I->getDesc().isUnconditionalBranch();
+ return I->isUnconditionalBranch();
}
static bool