cmd/compile: run rulegen to include missing condition

Rulegen was not run again between patchsets 2 and 3 of CL 264683, so
the rewritegeneric.go file is out of sync. Run rulegen.

Change-Id: I67d8d267c4f666943ed9bf8c33aac2ac6013336a
Reviewed-on: https://go-review.googlesource.com/c/go/+/266080
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Rémy Oudompheng <remyoudompheng@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>

diff --git a/src/cmd/compile/internal/ssa/rewritegeneric.go b/src/cmd/compile/internal/ssa/rewritegeneric.go
index 0d25c76abf510e87f6ea208cb94930f6730eb704..c9b8f70424f6e896853f563e329772be28eaf42d 100644 (file)
--- a/src/cmd/compile/internal/ssa/rewritegeneric.go
+++ b/src/cmd/compile/internal/ssa/rewritegeneric.go
@@ -5208,7 +5208,7 @@ func rewriteValuegeneric_OpDiv64u(v *Value) bool {
                return true
        }
        // match: (Div64u x (Const64 [c]))
-       // cond: c > 0 && c <= 0xFFFF && umagicOK32(int32(c)) && config.RegSize == 4
+       // cond: c > 0 && c <= 0xFFFF && umagicOK32(int32(c)) && config.RegSize == 4 && config.useHmul
        // result: (Add64 (Add64 <typ.UInt64> (Add64 <typ.UInt64> (Lsh64x64 <typ.UInt64> (ZeroExt32to64 (Div32u <typ.UInt32> (Trunc64to32 <typ.UInt32> (Rsh64Ux64 <typ.UInt64> x (Const64 <typ.UInt64> [32]))) (Const32 <typ.UInt32> [int32(c)]))) (Const64 <typ.UInt64> [32])) (ZeroExt32to64 (Div32u <typ.UInt32> (Trunc64to32 <typ.UInt32> x) (Const32 <typ.UInt32> [int32(c)])))) (Mul64 <typ.UInt64> (ZeroExt32to64 <typ.UInt64> (Mod32u <typ.UInt32> (Trunc64to32 <typ.UInt32> (Rsh64Ux64 <typ.UInt64> x (Const64 <typ.UInt64> [32]))) (Const32 <typ.UInt32> [int32(c)]))) (Const64 <typ.UInt64> [int64((1<<32)/c)]))) (ZeroExt32to64 (Div32u <typ.UInt32> (Add32 <typ.UInt32> (Mod32u <typ.UInt32> (Trunc64to32 <typ.UInt32> x) (Const32 <typ.UInt32> [int32(c)])) (Mul32 <typ.UInt32> (Mod32u <typ.UInt32> (Trunc64to32 <typ.UInt32> (Rsh64Ux64 <typ.UInt64> x (Const64 <typ.UInt64> [32]))) (Const32 <typ.UInt32> [int32(c)])) (Const32 <typ.UInt32> [int32((1<<32)%c)]))) (Const32 <typ.UInt32> [int32(c)]))))
        for {
                x := v_0
@@ -5216,7 +5216,7 @@ func rewriteValuegeneric_OpDiv64u(v *Value) bool {
                        break
                }
                c := auxIntToInt64(v_1.AuxInt)
-               if !(c > 0 && c <= 0xFFFF && umagicOK32(int32(c)) && config.RegSize == 4) {
+               if !(c > 0 && c <= 0xFFFF && umagicOK32(int32(c)) && config.RegSize == 4 && config.useHmul) {
                        break
                }
                v.reset(OpAdd64)