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DAG: Fold fma (fneg x), K, y -> fma x, -K, y
Concern RaisedrL316753

Description

DAG: Fold fma (fneg x), K, y -> fma x, -K, y

Details

Auditors
mcberg2017
Committed
arsenmOct 27 2017, 2:06 AM
Parents
rL316752: [ELF] Introduce range extension thunks for ARM
Branches
Unknown
Tags
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Event Timeline

mcberg2017 raised a concern with this commit.Oct 31 2017, 9:46 AM
mcberg2017 added a subscriber: mcberg2017.

This change introduces a regression to Apple internal llvm where we are now missing opportunities and increasing the number instructions we emit.

This commit now has outstanding concerns.Oct 31 2017, 9:46 AM