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| author | Evan Cheng <evan.cheng@apple.com> | 2011-01-07 23:50:32 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2011-01-07 23:50:32 +0000 |
| commit | c36b7069b42bece963b7e6adf020353ce990ef76 (patch) | |
| tree | fdbe6e1cede36ae3485403b9165bfdc039056eeb /lib/CodeGen/TwoAddressInstructionPass.cpp | |
| parent | 067a16c974fef473fd3bca1d58db0d50c59882ce (diff) | |
| download | llvm-c36b7069b42bece963b7e6adf020353ce990ef76.tar.gz llvm-c36b7069b42bece963b7e6adf020353ce990ef76.tar.bz2 llvm-c36b7069b42bece963b7e6adf020353ce990ef76.tar.xz | |
Do not model all INLINEASM instructions as having unmodelled side effects.
Instead encode llvm IR level property "HasSideEffects" in an operand (shared
with IsAlignStack). Added MachineInstrs::hasUnmodeledSideEffects() to check
the operand when the instruction is an INLINEASM.
This allows memory instructions to be moved around INLINEASM instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123044 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/TwoAddressInstructionPass.cpp')
| -rw-r--r-- | lib/CodeGen/TwoAddressInstructionPass.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp index 0d99585acd..693fbb68b3 100644 --- a/lib/CodeGen/TwoAddressInstructionPass.cpp +++ b/lib/CodeGen/TwoAddressInstructionPass.cpp @@ -743,7 +743,7 @@ static bool isSafeToDelete(MachineInstr *MI, const TargetInstrDesc &TID = MI->getDesc(); if (TID.mayStore() || TID.isCall()) return false; - if (TID.isTerminator() || TID.hasUnmodeledSideEffects()) + if (TID.isTerminator() || MI->hasUnmodeledSideEffects()) return false; for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { |