test/codegen: port last stack and memcombining tests

And delete them from asm_test.

Also delete an arm64 cmov test has been already ported to the new test
harness.

Change-Id: I4458721e1f512bc9ecbbe1c22a2c9c7109ad68fe
Reviewed-on: https://go-review.googlesource.com/106335
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, 12 insertions, 0 deletions

diff --git a/test/codegen/stack.go b/test/codegen/stack.go
index 987d6a5b1f..da5ef24e13 100644
--- a/test/codegen/stack.go
+++ b/test/codegen/stack.go
@@ -6,6 +6,8 @@
 
 package codegen
 
+import "runtime"
+
 // This file contains code generation tests related to the use of the
 // stack.
 
@@ -22,3 +24,13 @@ func StackStore() int {
 	var x int
 	return *(&x)
 }
+
+// Check that assembly output has matching offset and base register
+// (Issue #21064).
+
+// amd64:`.*b\+24\(SP\)`
+// arm:`.*b\+4\(FP\)`
+func check_asmout(a, b int) int {
+	runtime.GC() // use some frame
+	return b
+}