From f2228df26acc3036357debfb5b08501047b78756 Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <thomas@codesourcery.com>
Date: Tue, 18 May 2021 17:30:34 +0200
Subject: [PATCH] Add '__OPTIMIZE__' DejaGnu selector
gcc/testsuite/
* lib/target-supports.exp (check_effective_target___OPTIMIZE__):
New proc.
* gcc.c-torture/compile/ssa-unused-1.c: New file.
gcc/
* doc/sourcebuild.texi (Other attributes): Document '__OPTIMIZE__'
DejaGnu selector.
---
gcc/doc/sourcebuild.texi | 4 ++++
.../gcc.c-torture/compile/ssa-unused-1.c | 15 +++++++++++++++
gcc/testsuite/lib/target-supports.exp | 10 ++++++++++
3 files changed, 29 insertions(+)
create mode 100644 gcc/testsuite/gcc.c-torture/compile/ssa-unused-1.c
@@ -2755,6 +2755,10 @@ constant.
@item lgccjit
Target supports -lgccjit, i.e. libgccjit.so can be linked into jit tests.
+
+@item __OPTIMIZE__
+Optimizations are enabled (@code{__OPTIMIZE__}) per the current
+compiler flags.
@end table
@subsubsection Local to tests in @code{gcc.target/i386}
new file mode 100644
@@ -0,0 +1,15 @@
+/* This is just to exercise the '__OPTIMIZE__' DejaGnu selector. */
+
+/* { dg-do "assemble" } */
+/* { dg-additional-options "-fdump-tree-ssa" } */
+
+void f()
+{
+ int unused = 3;
+ (void) &unused;
+}
+
+/* { dg-final { scan-tree-dump-not {No longer having address taken: unused} ssa { target { ! __OPTIMIZE__ } } } }
+ { dg-final { scan-tree-dump-times {No longer having address taken: unused} 1 ssa { target __OPTIMIZE__ } } } */
+/* { dg-final { scan-tree-dump-not {Now a gimple register: unused} ssa { target { ! __OPTIMIZE__ } } } }
+ { dg-final { scan-tree-dump-times {Now a gimple register: unused} 1 ssa { target __OPTIMIZE__ } } } */
@@ -11103,3 +11103,13 @@ proc check_effective_target_lra { } {
return 1
}
+# Test whether optimizations are enabled ('__OPTIMIZE__') per the
+# 'current_compiler_flags' (thus don't cache).
+
+proc check_effective_target___OPTIMIZE__ {} {
+ return [check_no_compiler_messages_nocache __OPTIMIZE__ assembly {
+ #ifndef __OPTIMIZE__
+ # error nein
+ #endif
+ } [current_compiler_flags]]
+}
--
2.25.1