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[dev.ssa] cmd/compile/internal/ssa: Add code to test generated opcode counts

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Add test handler to count and check generated opcodes.  This will be
useful for testing that certain optimizations don't regress.

Also pass a *Config to the Fun constructor so that compile() works.

Change-Id: Iee679e87cf0bc635ddcbe433fc1bd4c1d9c953cc
Reviewed-on: https://go-review.googlesource.com/10502
Reviewed-by: Michael Matloob <michaelmatloob@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Keith Randall 2015-05-29 16:20:33 -07:00
parent 7bdecbf840
commit b0da62903d
2 changed files with 46 additions and 17 deletions
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9
src/cmd/compile/internal/ssa/deadcode_test.go
View file

@ -9,7 +9,8 @@ import (
)
func TestDeadLoop(t *testing.T) {
fun := Fun("entry",
c := NewConfig("amd64")
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, ".mem"),
Goto("exit")),
@ -38,7 +39,8 @@ func TestDeadLoop(t *testing.T) {
}
func TestDeadValue(t *testing.T) {
fun := Fun("entry",
c := NewConfig("amd64")
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, ".mem"),
Valu("deadval", OpConst, TypeInt64, int64(37)),
@ -60,7 +62,8 @@ func TestDeadValue(t *testing.T) {
}
func TestNeverTaken(t *testing.T) {
fun := Fun("entry",
c := NewConfig("amd64")
fun := Fun(c, "entry",
Bloc("entry",
Valu("cond", OpConst, TypeBool, false),
Valu("mem", OpArg, TypeMem, ".mem"),