diff options
author | Evan Cheng <evan.cheng@apple.com> | 2011-12-07 07:15:52 +0000 |
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committer | Evan Cheng <evan.cheng@apple.com> | 2011-12-07 07:15:52 +0000 |
commit | 5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd (patch) | |
tree | 88fa5be8f6cf6e9a222e79c8806f29c8841925d1 /lib/CodeGen/MachineBasicBlock.cpp | |
parent | 5729c5848c74a2413cc1d32a5f3c746aff5d9ccc (diff) | |
download | external_llvm-5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd.zip external_llvm-5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd.tar.gz external_llvm-5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd.tar.bz2 |
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/MachineBasicBlock.cpp')
-rw-r--r-- | lib/CodeGen/MachineBasicBlock.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
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 @@ bool MachineBasicBlock::canFallThrough() { // 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 @@ void MachineBasicBlock::ReplaceUsesOfBlockWith(MachineBasicBlock *Old, 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. |