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| author | Craig Topper <craig.topper@gmail.com> | 2013-10-07 05:42:48 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2013-10-07 05:42:48 +0000 |
| commit | a0e0735e6a5e94326922f0cb82a776138473bbfe (patch) | |
| tree | b268ddd3140dc8060a6400e79412bc3d3038eddb /llvm/lib/Support/CommandLine.cpp | |
| parent | ad090d82f221e266d13f02c59add7e3a80b84fec (diff) | |
| download | llvm-a0e0735e6a5e94326922f0cb82a776138473bbfe.zip llvm-a0e0735e6a5e94326922f0cb82a776138473bbfe.tar.gz llvm-a0e0735e6a5e94326922f0cb82a776138473bbfe.tar.bz2 | |
Teach X86 asm parser that VMOVAPSrr and other VEX-encoded register to register moves should be switched from using the MRMSrcReg form to the MRMDestReg form if the source register is a 64-bit extended register and the destination register is not.
This allows the instruction to be encoded using the 2-byte VEX form instead of the 3-byte VEX form. The GNU assembler has similar behavior and instruction selection already does this.
llvm-svn: 192088
Diffstat (limited to 'llvm/lib/Support/CommandLine.cpp')
0 files changed, 0 insertions, 0 deletions