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(parent: 4229f12) | patch
[X86][SSE] Show isNegatibleForFree inability to peek through X86ISD::FRCP
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Sat, 8 Feb 2020 10:40:49 +0000 (10:40 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Sat, 8 Feb 2020 10:40:49 +0000 (10:40 +0000)
commit63e338be2cc6a4ab7a95ca7cf264928d41778ff4
treee4ced23175e7a3cb3fbacf625ffc413f743e0e0btree | snapshot
parent4229f12a22a28d17ab49a3478928852fd212fc2acommit | diff
[X86][SSE] Show isNegatibleForFree inability to peek through X86ISD::FRCP

We can safely negate the input of RCP but we can't peek through it.
llvm/test/CodeGen/X86/fma-fneg-combine-2.ll diff | blob | history
Domain: System / Toolchain;