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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 | 9a542a4d5f89919b2bc1aea8f76f50f65c6b77a7 (patch) | |
| tree | 65f6ba0674718e477914bfea1c05b6b22445dd4d /llvm/lib | |
| parent | 20704a0ce8de9877e4dae1eadf37c00e78dcbf5c (diff) | |
| download | bcm5719-llvm-9a542a4d5f89919b2bc1aea8f76f50f65c6b77a7.tar.gz bcm5719-llvm-9a542a4d5f89919b2bc1aea8f76f50f65c6b77a7.zip | |
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.
llvm-svn: 53498
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index 7822ed7cb38..2f191ffa4b1 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/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) { |
