cmd/compile: disable inline static init optimization

There are a plenty of regression in 1.20 with this optimization. This CL
disable inline static init, so it's safer to backport to 1.20 branch.

The optimization will be enabled again during 1.21 cycle.

Updates #58293
Updates #58339
For #58293

Change-Id: If5916008597b46146b4dc7108c6b389d53f35e95
Reviewed-on: https://go-review.googlesource.com/c/go/+/467015
Reviewed-by: Keith Randall <[email protected]>
Reviewed-by: Keith Randall <[email protected]>
Run-TryBot: Cuong Manh Le <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
Reviewed-by: Matthew Dempsky <[email protected]>
Auto-Submit: Cuong Manh Le <[email protected]>

Author: cuonglm

src/cmd/compile/internal/base/flag.go

@@ -168,7 +168,7 @@ func ParseFlags() {
 
 	Debug.ConcurrentOk = true
 	Debug.InlFuncsWithClosures = 1
-	Debug.InlStaticInit = 1
+	Debug.InlStaticInit = 0
 	Debug.SyncFrames = -1 // disable sync markers by default
 
 	Debug.Checkptr = -1 // so we can tell whether it is set explicitly

test/fixedbugs/issue56778.go

@@ -1,4 +1,4 @@
-// compiledir
+// compiledir -d=inlstaticinit=1
 
 // Copyright 2022 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

test/inline.go

@@ -1,4 +1,4 @@
-// errorcheckwithauto -0 -m -d=inlfuncswithclosures=1
+// errorcheckwithauto -0 -m -d=inlfuncswithclosures=1 -d=inlstaticinit=1
 
 // Copyright 2015 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style

test/noinit.go

@@ -1,4 +1,4 @@
-// run
+// run -gcflags=-d=inlstaticinit=1
 //go:build !gcflags_noopt
 
 // Copyright 2010 The Go Authors. All rights reserved.