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| author | Evan Cheng <evan.cheng@apple.com> | 2007-08-09 21:59:35 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-08-09 21:59:35 +0000 |
| commit | f7ef26e7012fdf0ec6366489d269997f2ed1ba97 (patch) | |
| tree | 6885604b79c658bc26cbd0d7515f30cb09628fae /lib/Bitcode/Writer/BitcodeWriter.cpp | |
| parent | f2369f20427d0e74c36b1ee90ae7892b5eb55b95 (diff) | |
divb / mulb outputs to ah. Under x86-64 it's not legal to read ah if the instruction requires a rex prefix (i.e. outputs to r8b, etc.). So issue shift right by 8 on AX and then truncate it to 8 bits instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40972 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Bitcode/Writer/BitcodeWriter.cpp')
0 files changed, 0 insertions, 0 deletions