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| author | Dan Gohman <gohman@apple.com> | 2008-07-12 00:10:52 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-07-12 00:10:52 +0000 |
| commit | cddc11e7570893233af8e84dfb8e7f0f9ab0090d (patch) | |
| tree | 85c63075a9070e7cd0d818346341fdb13758d1f2 /lib/Target/X86/X86InstrInfo.cpp | |
| parent | e6acf36dca9864c6ead9113f0322f174469810cc (diff) | |
| download | external_llvm-cddc11e7570893233af8e84dfb8e7f0f9ab0090d.zip external_llvm-cddc11e7570893233af8e84dfb8e7f0f9ab0090d.tar.gz external_llvm-cddc11e7570893233af8e84dfb8e7f0f9ab0090d.tar.bz2 | |
Add a utility function to MachineInstr for testing whether an instruction
has exactly one MachineMemOperand, and change some X86 lowering code to
make use of it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53498 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 7822ed7..2f191ff 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -2030,14 +2030,10 @@ MachineInstr* X86InstrInfo::foldMemoryOperand(MachineFunction &MF, // Check switch flag if (NoFusing) return NULL; + // Determine the alignment of the load. unsigned Alignment = 0; - for (alist<MachineMemOperand>::iterator i = LoadMI->memoperands_begin(), - e = LoadMI->memoperands_end(); i != e; ++i) { - const MachineMemOperand &MRO = *i; - unsigned Align = MRO.getAlignment(); - if (Align > Alignment) - Alignment = Align; - } + if (LoadMI->hasOneMemOperand()) + Alignment = LoadMI->memoperands_begin()->getAlignment(); // FIXME: Move alignment requirement into tables? if (Alignment < 16) { |