test/codegen: port tbz/tbnz arm64 tests

And delete them from asm_test.

Change-Id: I34fcf85ae8ce09cd146fe4ce6a0ae7616bd97e2d
Reviewed-on: https://go-review.googlesource.com/102296
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Giovanni Bajo <rasky@develer.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/test/codegen/comparisons.go b/test/codegen/comparisons.go
index c0824e6ed1..15a659a4e6 100644
--- a/test/codegen/comparisons.go
+++ b/test/codegen/comparisons.go
@@ -106,3 +106,29 @@ func CmpMem5(p **int) {
 	// amd64:`CMPL\truntime.writeBarrier\(SB\), [$]0`
 	*p = nil
 }
+
+// Check tbz/tbnz are generated when comparing against zero on arm64
+
+func CmpZero1(a int32, ptr *int) {
+	if a < 0 { // arm64:"TBZ"
+		*ptr = 0
+	}
+}
+
+func CmpZero2(a int64, ptr *int) {
+	if a < 0 { // arm64:"TBZ"
+		*ptr = 0
+	}
+}
+
+func CmpZero3(a int32, ptr *int) {
+	if a >= 0 { // arm64:"TBNZ"
+		*ptr = 0
+	}
+}
+
+func CmpZero4(a int64, ptr *int) {
+	if a >= 0 { // arm64:"TBNZ"
+		*ptr = 0
+	}
+}