diff options
Diffstat (limited to 'src/cmd/compile/internal/ssa/gen/ARM.rules')
| -rw-r--r-- | src/cmd/compile/internal/ssa/gen/ARM.rules | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/ssa/gen/ARM.rules b/src/cmd/compile/internal/ssa/gen/ARM.rules index bfb97e5271..8a755b404b 100644 --- a/src/cmd/compile/internal/ssa/gen/ARM.rules +++ b/src/cmd/compile/internal/ssa/gen/ARM.rules @@ -508,6 +508,8 @@ (TST x (MOVWconst [c])) => (TSTconst [c] x) (TEQ x (MOVWconst [c])) => (TEQconst [c] x) +(SRR x (MOVWconst [c])) => (SRRconst x [c&31]) + // Canonicalize the order of arguments to comparisons - helps with CSE. (CMP x y) && canonLessThan(x,y) => (InvertFlags (CMP y x)) @@ -1136,7 +1138,6 @@ ( ORshiftRL [c] (SLLconst x [32-c]) x) => (SRRconst [ c] x) (XORshiftRL [c] (SLLconst x [32-c]) x) => (SRRconst [ c] x) -(RotateLeft32 x (MOVWconst [c])) => (SRRconst [-c&31] x) (RotateLeft16 <t> x (MOVWconst [c])) => (Or16 (Lsh16x32 <t> x (MOVWconst [c&15])) (Rsh16Ux32 <t> x (MOVWconst [-c&15]))) (RotateLeft8 <t> x (MOVWconst [c])) => (Or8 (Lsh8x32 <t> x (MOVWconst [c&7])) (Rsh8Ux32 <t> x (MOVWconst [-c&7]))) (RotateLeft32 x y) => (SRR x (RSBconst [0] <y.Type> y)) |