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| author | Craig Topper <craig.topper@intel.com> | 2018-01-07 06:24:23 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2018-01-07 06:24:23 +0000 |
| commit | 40cc8338f75174fced450bfa567cc722c9da3317 (patch) | |
| tree | 941cf5b82df1ae922abe9d82b31b4514d2e9ba40 /llvm/lib/CodeGen/TailDuplication.cpp | |
| parent | 8fa800b8340830f906edfca013280bbd95e12f8b (diff) | |
| download | bcm5719-llvm-40cc8338f75174fced450bfa567cc722c9da3317.tar.gz bcm5719-llvm-40cc8338f75174fced450bfa567cc722c9da3317.zip | |
[X86] Remove cvtps2ph xmm->xmm from store folding tables. Add the evex versions of cvtps2ph to the store folding tables.
The memory form of the xmm->xmm version only writes 64-bits. If we use it in the folding tables and its get used for a stack spill, only half the slot will be written. Then a reload may read all 128-bits which will pull in garbage. But without the spill the upper bits of the register would have been zero. By not folding we would preserve the zeros.
llvm-svn: 321950
Diffstat (limited to 'llvm/lib/CodeGen/TailDuplication.cpp')
0 files changed, 0 insertions, 0 deletions
