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test/codegen: port math/bits.ReverseBytes tests to codegen

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And remove them from ssa_test.

Change-Id: If767af662801219774d1bdb787c77edfa6067770
Reviewed-on: https://go-review.googlesource.com/98976
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Giovanni Bajo <rasky@develer.com>
This commit is contained in:
Alberto Donizetti 2018-03-06 20:10:35 +01:00
parent 05962561ae
commit 8516ecd05f
2 changed files with 37 additions and 67 deletions
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62
src/cmd/compile/internal/gc/asm_test.go
View File

@ -224,7 +224,7 @@ var allAsmTests = []*asmTests{
{
arch: "amd64",
os: "linux",
imports: []string{"math/bits", "unsafe", "runtime"},
imports: []string{"unsafe", "runtime"},
tests: linuxAMD64Tests,
},
{
@ -235,7 +235,6 @@ var allAsmTests = []*asmTests{
{
arch: "s390x",
os: "linux",
imports: []string{"math/bits"},
tests: linuxS390XTests,
},
{
@ -247,7 +246,6 @@ var allAsmTests = []*asmTests{
{
arch: "arm64",
os: "linux",
imports: []string{"math/bits"},
tests: linuxARM64Tests,
},
{
@ -522,31 +520,6 @@ var linuxAMD64Tests = []*asmTest{
`,
pos: []string{"\tBTQ\t\\$60"},
},
// Intrinsic tests for math/bits
{
fn: `
func f45(a uint64) uint64 {
return bits.ReverseBytes64(a)
}
`,
pos: []string{"\tBSWAPQ\t"},
},
{
fn: `
func f46(a uint32) uint32 {
return bits.ReverseBytes32(a)
}
`,
pos: []string{"\tBSWAPL\t"},
},
{
fn: `
func f47(a uint16) uint16 {
return bits.ReverseBytes16(a)
}
`,
pos: []string{"\tROLW\t\\$8,"},
},
// multiplication merging tests
{
fn: `
@ -1169,23 +1142,6 @@ var linuxS390XTests = []*asmTest{
`,
pos: []string{"\tFMSUBS\t"},
},
// Intrinsic tests for math/bits
{
fn: `
func f22(a uint64) uint64 {
return bits.ReverseBytes64(a)
}
`,
pos: []string{"\tMOVDBR\t"},
},
{
fn: `
func f23(a uint32) uint32 {
return bits.ReverseBytes32(a)
}
`,
pos: []string{"\tMOVWBR\t"},
},
{
// check that stack store is optimized away
fn: `
@ -1361,22 +1317,6 @@ var linuxARM64Tests = []*asmTest{
pos: []string{"\tORN\t"},
neg: []string{"\tORR\t"},
},
{
fn: `
func f22(a uint64) uint64 {
return bits.ReverseBytes64(a)
}
`,
pos: []string{"\tREV\t"},
},
{
fn: `
func f23(a uint32) uint32 {
return bits.ReverseBytes32(a)
}
`,
pos: []string{"\tREVW\t"},
},
{
fn: `
func f34(a uint64) uint64 {

30
test/codegen/mathbits.go
View File

@ -124,6 +124,36 @@ func OnesCount16(n uint16) int {
return bits.OnesCount16(n)
}
// ----------------------- //
// bits.ReverseBytes //
// ----------------------- //
func ReverseBytes(n uint) uint {
//amd64:"BSWAPQ"
//s390x:"MOVDBR"
//arm64:"REV"
return bits.ReverseBytes(n)
}
func ReverseBytes64(n uint64) uint64 {
//amd64:"BSWAPQ"
//s390x:"MOVDBR"
//arm64:"REV"
return bits.ReverseBytes64(n)
}
func ReverseBytes32(n uint32) uint32 {
//amd64:"BSWAPL"
//s390x:"MOVWBR"
//arm64:"REVW"
return bits.ReverseBytes32(n)
}
func ReverseBytes16(n uint16) uint16 {
//amd64:"ROLW"
return bits.ReverseBytes16(n)
}
// ------------------------ //
// bits.TrailingZeros //
// ------------------------ //