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[dev.ssa] cmd/compile: remove dead amd64 ITab lowering rule

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ITab is handled by decomposition.
The rule is vestigial. Remove it.

Change-Id: I6fdf3d14d466761c7665c7ea14f34ca0e1e3e646
Reviewed-on: https://go-review.googlesource.com/24718
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
This commit is contained in:
Josh Bleecher Snyder 2016-07-03 12:56:29 -07:00
parent f55317828b
commit ad8b8f644e
2 changed files with 0 additions and 23 deletions
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1
src/cmd/compile/internal/ssa/gen/AMD64.rules
View File

@ -436,7 +436,6 @@
(GetG mem) -> (LoweredGetG mem)
(GetClosurePtr) -> (LoweredGetClosurePtr)
(Addr {sym} base) -> (LEAQ {sym} base)
(ITab (Load ptr mem)) -> (MOVQload ptr mem)
// block rewrites
(If (SETL cmp) yes no) -> (LT cmp yes no)

22
src/cmd/compile/internal/ssa/rewriteAMD64.go
View File

@ -232,8 +232,6 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
return rewriteValueAMD64_OpHmul8(v, config)
case OpHmul8u:
return rewriteValueAMD64_OpHmul8u(v, config)
case OpITab:
return rewriteValueAMD64_OpITab(v, config)
case OpInterCall:
return rewriteValueAMD64_OpInterCall(v, config)
case OpIsInBounds:
@ -4057,26 +4055,6 @@ func rewriteValueAMD64_OpHmul8u(v *Value, config *Config) bool {
return true
}
}
func rewriteValueAMD64_OpITab(v *Value, config *Config) bool {
b := v.Block
_ = b
// match: (ITab (Load ptr mem))
// cond:
// result: (MOVQload ptr mem)
for {
v_0 := v.Args[0]
if v_0.Op != OpLoad {
break
}
ptr := v_0.Args[0]
mem := v_0.Args[1]
v.reset(OpAMD64MOVQload)
v.AddArg(ptr)
v.AddArg(mem)
return true
}
return false
}
func rewriteValueAMD64_OpInterCall(v *Value, config *Config) bool {
b := v.Block
_ = b