cmd/compile: remove amd64p32 related SSA rules

Updates golang/go#30439

Change-Id: Iadc737e4c6bb05bb576fe4bb344ad92403697352
Reviewed-on: https://go-review.googlesource.com/c/go/+/201380
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>

diff --git a/src/cmd/compile/internal/ssa/gen/AMD64.rules b/src/cmd/compile/internal/ssa/gen/AMD64.rules
index 44c9e030d42a98dfd107bc3da8a42c0cec910ed5..d4484084a1ac2f2a0f4885eec9b42b3d7fa49829 100644 (file)
--- a/src/cmd/compile/internal/ssa/gen/AMD64.rules
+++ b/src/cmd/compile/internal/ssa/gen/AMD64.rules
@@ -226,9 +226,6 @@
 (NeqPtr x y) && config.PtrSize == 4 -> (SETNE (CMPL x y))
 (Neq(32|64)F x y) -> (SETNEF (UCOMIS(S|D) x y))
 
-(Int64Hi x) -> (SHRQconst [32] x)         // needed for amd64p32
-(Int64Lo x) -> x
-
 // Lowering loads
 (Load <t> ptr mem) && (is64BitInt(t) || isPtr(t) && config.PtrSize == 8) -> (MOVQload ptr mem)
 (Load <t> ptr mem) && (is32BitInt(t) || isPtr(t) && config.PtrSize == 4) -> (MOVLload ptr mem)

diff --git a/src/cmd/compile/internal/ssa/rewriteAMD64.go b/src/cmd/compile/internal/ssa/rewriteAMD64.go
index f1aa3f2bd31078c35b92e98d3caeb9b2c846d9ca..45634a25eb01b029ef90dfdd9bac3a646d1ef70a 100644 (file)
--- a/src/cmd/compile/internal/ssa/rewriteAMD64.go
+++ b/src/cmd/compile/internal/ssa/rewriteAMD64.go
@@ -826,10 +826,6 @@ func rewriteValueAMD64(v *Value) bool {
                return rewriteValueAMD64_OpHmul64_0(v)
        case OpHmul64u:
                return rewriteValueAMD64_OpHmul64u_0(v)
-       case OpInt64Hi:
-               return rewriteValueAMD64_OpInt64Hi_0(v)
-       case OpInt64Lo:
-               return rewriteValueAMD64_OpInt64Lo_0(v)
        case OpInterCall:
                return rewriteValueAMD64_OpInterCall_0(v)
        case OpIsInBounds:
@@ -52729,28 +52725,6 @@ func rewriteValueAMD64_OpHmul64u_0(v *Value) bool {
                return true
        }
 }
-func rewriteValueAMD64_OpInt64Hi_0(v *Value) bool {
-       // match: (Int64Hi x)
-       // result: (SHRQconst [32] x)
-       for {
-               x := v.Args[0]
-               v.reset(OpAMD64SHRQconst)
-               v.AuxInt = 32
-               v.AddArg(x)
-               return true
-       }
-}
-func rewriteValueAMD64_OpInt64Lo_0(v *Value) bool {
-       // match: (Int64Lo x)
-       // result: x
-       for {
-               x := v.Args[0]
-               v.reset(OpCopy)
-               v.Type = x.Type
-               v.AddArg(x)
-               return true
-       }
-}
 func rewriteValueAMD64_OpInterCall_0(v *Value) bool {
        // match: (InterCall [argwid] entry mem)
        // result: (CALLinter [argwid] entry mem)