cmd/compile: optimize absorbing InvertFlags into Noov comparisons for arm64

[gostls13.git] / src / cmd / compile / internal / ssa / _gen / ARM64.rules

diff --git a/src/cmd/compile/internal/ssa/_gen/ARM64.rules b/src/cmd/compile/internal/ssa/_gen/ARM64.rules
index 1719312fbd47b820cd4c99a1cb780939a268addf..227ec5d6104d56c5501c3fd41d1c24e95b511709 100644 (file)
--- a/src/cmd/compile/internal/ssa/_gen/ARM64.rules
+++ b/src/cmd/compile/internal/ssa/_gen/ARM64.rules
@@ -1569,8 +1569,8 @@
 (LessEqualF       (InvertFlags x)) => (GreaterEqualF x)
 (GreaterThanF     (InvertFlags x)) => (LessThanF x)
 (GreaterEqualF    (InvertFlags x)) => (LessEqualF x)
-(LessThanNoov     (InvertFlags x)) => (BIC (GreaterEqualNoov <typ.Bool> x) (Equal <typ.Bool> x))
-(GreaterEqualNoov (InvertFlags x)) => (OR (LessThanNoov <typ.Bool> x) (Equal <typ.Bool> x))
+(LessThanNoov     (InvertFlags x)) => (CSEL0 [OpARM64NotEqual] (GreaterEqualNoov <typ.Bool> x) x)
+(GreaterEqualNoov (InvertFlags x)) => (CSINC [OpARM64NotEqual] (LessThanNoov <typ.Bool> x) (MOVDconst [0]) x)
 
 // Boolean-generating instructions (NOTE: NOT all boolean Values) always
 // zero upper bit of the register; no need to zero-extend