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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2023-05-02 18:37:28 +0100 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2023-05-02 19:54:04 +0100 |
| commit | edce93c9d8ddcd65740d22851db9209ff5ec066e (patch) | |
| tree | 592767723300eaaed12678626d662c4051c57ec2 /lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp | |
| parent | 419bc85675fe73f2d19cd3f756cf029248fb4295 (diff) | |
[X86] Lower abdu(lhs, rhs) -> or(usubsat(lhs,rhs), usubsat(rhs,lhs))
Adds pre-SSE4 v8i16 abdu handling - we already have something similar for umax(x,y) -> add(x,usubsat(y,x)) / umin(x,y) -> sub(x,usubsat(x,y))
(I'm starting to look at adding generic TargetLowering expandABD() handling and came across this missed opportunity).
Inspiration: http://0x80.pl/notesen/2018-03-11-sse-abs-unsigned.html
Alive2: https://alive2.llvm.org/ce/z/gMhaTa
Diffstat (limited to 'lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp')
0 files changed, 0 insertions, 0 deletions