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cmd/internal/obj/arm64: add test coverage for VMOVS and VMOVD 

Change-Id: I31ba6696e124dccf37d674d090fdf04ba0a049a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/515616
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
This commit is contained in:
Joel Sing 2023-08-03 00:42:54 +10:00
parent 14f5eb7f31
commit 26d4ce70d4
2 changed files with 36 additions and 6 deletions
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24
src/cmd/internal/obj/arm64/asm_arm64_test.go
View File

@ -301,13 +301,25 @@ func TestPCALIGN(t *testing.T) {
}
}
func testvmovs() (r1, r2 uint64)
func testvmovd() (r1, r2 uint64)
func testvmovq() (r1, r2 uint64)
// TestVMOVQ checks if the arm64 VMOVQ instruction is working properly.
func TestVMOVQ(t *testing.T) {
a, b := testvmovq()
if a != 0x7040201008040201 || b != 0x3040201008040201 {
t.Errorf("TestVMOVQ got: a=0x%x, b=0x%x, want: a=0x7040201008040201, b=0x3040201008040201", a, b)
func TestVMOV(t *testing.T) {
tests := []struct {
op string
vmovFunc func() (uint64, uint64)
wantA, wantB uint64
}{
{"VMOVS", testvmovs, 0x80402010, 0},
{"VMOVD", testvmovd, 0x7040201008040201, 0},
{"VMOVQ", testvmovq, 0x7040201008040201, 0x3040201008040201},
}
for _, test := range tests {
gotA, gotB := test.vmovFunc()
if gotA != test.wantA || gotB != test.wantB {
t.Errorf("%v: got: a=0x%x, b=0x%x, want: a=0x%x, b=0x%x", test.op, gotA, gotB, test.wantA, test.wantB)
}
}
}
@ -318,6 +330,6 @@ func TestMOVK(t *testing.T) {
x := testmovk()
want := uint64(40000 << 48)
if x != want {
t.Errorf("TestMOVK got %x want %x\n", x, want)
t.Errorf("Got %x want %x\n", x, want)
}
}

18
src/cmd/internal/obj/arm64/asm_arm64_test.s
View File

@ -4,6 +4,24 @@
#include "textflag.h"
// testvmovs() (r1, r2 uint64)
TEXT ·testvmovs(SB), NOSPLIT, $0-16
VMOVS $0x80402010, V1
VMOV V1.D[0], R0
VMOV V1.D[1], R1
MOVD R0, r1+0(FP)
MOVD R1, r2+8(FP)
RET
// testvmovd() (r1, r2 uint64)
TEXT ·testvmovd(SB), NOSPLIT, $0-16
VMOVD $0x7040201008040201, V1
VMOV V1.D[0], R0
VMOV V1.D[1], R1
MOVD R0, r1+0(FP)
MOVD R1, r2+8(FP)
RET
// testvmovq() (r1, r2 uint64)
TEXT ·testvmovq(SB), NOSPLIT, $0-16
VMOVQ $0x7040201008040201, $0x3040201008040201, V1