cmd/compile,runtime: remove ambiguously live logic

The previous CL introduced stack objects. This CL removes the old
ambiguously live liveness analysis. After this CL we're relying
on stack objects exclusively.

Update a bunch of liveness tests to reflect the new world.

Fixes #22350

Change-Id: I739b26e015882231011ce6bc1a7f426049e59f31
Reviewed-on: https://go-review.googlesource.com/c/134156
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/test/live_syscall.go b/test/live_syscall.go
index 65a161c028..b7b85bcabf 100644
--- a/test/live_syscall.go
+++ b/test/live_syscall.go
@@ -19,22 +19,22 @@ func f(uintptr) // ERROR "f assuming arg#1 is unsafe uintptr"
 
 func g() {
 	var t int
-	f(uintptr(unsafe.Pointer(&t))) // ERROR "live at call to f: .?autotmp" "g &t does not escape"
+	f(uintptr(unsafe.Pointer(&t))) // ERROR "live at call to f: .?autotmp" "g &t does not escape" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
 }
 
 func h() {
 	var v int
-	syscall.Syscall(0, 1, uintptr(unsafe.Pointer(&v)), 2) // ERROR "live at call to Syscall: .?autotmp" "h &v does not escape"
+	syscall.Syscall(0, 1, uintptr(unsafe.Pointer(&v)), 2) // ERROR "live at call to Syscall: .?autotmp" "h &v does not escape" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
 }
 
 func i() {
 	var t int
 	p := unsafe.Pointer(&t) // ERROR "i &t does not escape"
-	f(uintptr(p))           // ERROR "live at call to f: .?autotmp"
+	f(uintptr(p))           // ERROR "live at call to f: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
 }
 
 func j() {
 	var v int
 	p := unsafe.Pointer(&v)              // ERROR "j &v does not escape"
-	syscall.Syscall(0, 1, uintptr(p), 2) // ERROR "live at call to Syscall: .?autotmp"
+	syscall.Syscall(0, 1, uintptr(p), 2) // ERROR "live at call to Syscall: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
 }