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

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And remove them from ssa_test.

Change-Id: I3efac5fea529bb0efa2dae32124530482ba5058e
Reviewed-on: https://go-review.googlesource.com/98815
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Alberto Donizetti 2018-03-06 12:55:41 +01:00
parent f624445473
commit 18ae5eca3b
2 changed files with 28 additions and 52 deletions
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52
src/cmd/compile/internal/gc/asm_test.go
View file

@ -547,34 +547,6 @@ var linuxAMD64Tests = []*asmTest{
`,
pos: []string{"\tROLW\t\\$8,"},
},
{
fn: `
func pop1(x uint64) int {
return bits.OnesCount64(x)
}`,
pos: []string{"\tPOPCNTQ\t", "support_popcnt"},
},
{
fn: `
func pop2(x uint32) int {
return bits.OnesCount32(x)
}`,
pos: []string{"\tPOPCNTL\t", "support_popcnt"},
},
{
fn: `
func pop3(x uint16) int {
return bits.OnesCount16(x)
}`,
pos: []string{"\tPOPCNTL\t", "support_popcnt"},
},
{
fn: `
func pop4(x uint) int {
return bits.OnesCount(x)
}`,
pos: []string{"\tPOPCNTQ\t", "support_popcnt"},
},
// multiplication merging tests
{
fn: `
@ -1492,30 +1464,6 @@ var linuxARM64Tests = []*asmTest{
`,
pos: []string{"TBZ"},
},
{
fn: `
func $(x uint64) int {
return bits.OnesCount64(x)
}
`,
pos: []string{"\tVCNT\t", "\tVUADDLV\t"},
},
{
fn: `
func $(x uint32) int {
return bits.OnesCount32(x)
}
`,
pos: []string{"\tVCNT\t", "\tVUADDLV\t"},
},
{
fn: `
func $(x uint16) int {
return bits.OnesCount16(x)
}
`,
pos: []string{"\tVCNT\t", "\tVUADDLV\t"},
},
// Load-combining tests.
{
fn: `

28
test/codegen/mathbits.go
View file

@ -96,6 +96,34 @@ func Len8(n uint8) int {
return bits.Len8(n)
}
// -------------------- //
// bits.OnesCount //
// -------------------- //
func OnesCount(n uint) int {
//amd64:"POPCNTQ",".*support_popcnt"
//arm64:"VCNT","VUADDLV"
return bits.OnesCount(n)
}
func OnesCount64(n uint64) int {
//amd64:"POPCNTQ",".*support_popcnt"
//arm64:"VCNT","VUADDLV"
return bits.OnesCount64(n)
}
func OnesCount32(n uint32) int {
//amd64:"POPCNTL",".*support_popcnt"
//arm64:"VCNT","VUADDLV"
return bits.OnesCount32(n)
}
func OnesCount16(n uint16) int {
//amd64:"POPCNTL",".*support_popcnt"
//arm64:"VCNT","VUADDLV"
return bits.OnesCount16(n)
}
// ------------------------ //
// bits.TrailingZeros //
// ------------------------ //