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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-07-26 22:03:21 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-07-26 22:03:21 +0000 |
| commit | 0cf3c93c993f824807f5f2740cf748d693adda5f (patch) | |
| tree | 906d794e8cab3866a99306420435b2c7ab1ac9d9 /lib/Support/Unix/Unix.h | |
| parent | 369a4c775995cb1496d81c52210571d0876de606 (diff) | |
Eliminate some SUBREG_TO_REG patterns with sub_ss and sub_sd.
The SUBREG_TO_REG instruction has magic semantics asserting that the
source value was defined by an instruction that cleared the high half of
the register. Those semantics are never actually exploited for xmm
registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160818 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/Unix/Unix.h')
0 files changed, 0 insertions, 0 deletions