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| author | Amy Kwan <amy.kwan1@ibm.com> | 2019-11-24 00:27:40 -0600 |
|---|---|---|
| committer | Amy Kwan <amy.kwan1@ibm.com> | 2019-11-24 00:27:40 -0600 |
| commit | d1dded28da2808200dacdc1eda46058cc0a0759b (patch) | |
| tree | e1fa6407e2b77c0e04607ee6255d342ff91c30e9 /llvm/lib/Transforms/Utils/CodeMoverUtils.cpp | |
| parent | e0297a8bee6586280640f31b876d4da15966f8b7 (diff) | |
| download | llvm-d1dded28da2808200dacdc1eda46058cc0a0759b.zip llvm-d1dded28da2808200dacdc1eda46058cc0a0759b.tar.gz llvm-d1dded28da2808200dacdc1eda46058cc0a0759b.tar.bz2 | |
[PowerPC] Spill CR LT bits on P9 using setb
This patch aims to spill CR[0-7]LT bits on POWER9 using the setb instruction.
The sequence on P9 to spill these bits will be:
setb %reg, %CRREG
stw %reg, $FI
Instead of the typical sequence:
mfocrf %reg, %CRREG
rlwinm %reg1, %reg, $SH, 0, 0
stw %reg1, $FI
Differential Revision: https://reviews.llvm.org/D68443
Diffstat (limited to 'llvm/lib/Transforms/Utils/CodeMoverUtils.cpp')
0 files changed, 0 insertions, 0 deletions