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authorEvan Cheng <evan.cheng@apple.com>2011-12-07 07:15:52 +0000
committerEvan Cheng <evan.cheng@apple.com>2011-12-07 07:15:52 +0000
commit5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd (patch)
tree88fa5be8f6cf6e9a222e79c8806f29c8841925d1 /lib/CodeGen/TailDuplication.cpp
parent5729c5848c74a2413cc1d32a5f3c746aff5d9ccc (diff)
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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
Diffstat (limited to 'lib/CodeGen/TailDuplication.cpp')
-rw-r--r--lib/CodeGen/TailDuplication.cpp10
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/CodeGen/TailDuplication.cpp b/lib/CodeGen/TailDuplication.cpp
index adfce863d0..031377b36b 100644
--- a/lib/CodeGen/TailDuplication.cpp
+++ b/lib/CodeGen/TailDuplication.cpp
@@ -553,7 +553,7 @@ TailDuplicatePass::shouldTailDuplicate(const MachineFunction &MF,
bool HasIndirectbr = false;
if (!TailBB.empty())
- HasIndirectbr = TailBB.back().getDesc().isIndirectBranch();
+ HasIndirectbr = TailBB.back().isIndirectBranch();
if (HasIndirectbr && PreRegAlloc)
MaxDuplicateCount = 20;
@@ -563,19 +563,19 @@ TailDuplicatePass::shouldTailDuplicate(const MachineFunction &MF,
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 @@ TailDuplicatePass::isSimpleBB(MachineBasicBlock *TailBB) {
++I;
if (I == E)
return true;
- return I->getDesc().isUnconditionalBranch();
+ return I->isUnconditionalBranch();
}
static bool