[testsuite] Add effective target ident_directive

On nvptx we run into:
...
FAIL: c-c++-common/ident-1b.c  -Wc++-compat   scan-assembler GCC:
FAIL: c-c++-common/ident-2b.c  -Wc++-compat   scan-assembler GCC:
...

Using a scan-assembler directive adds -fno-indent to the compile options.
The test c-c++-common/ident-1b.c adds dg-options "-fident", and intends to
check that the -fident overrides the -fno-indent, by means of the
scan-assembler.  But for nvptx, there's no .ident directive, both with -fident
and -fno-ident.

Fix this by adding an effective target ident_directive, and requiring
it in both test-cases.

Tested on nvptx and x86_64.

gcc/testsuite/ChangeLog:

2020-09-24  Tom de Vries  <tdevries@suse.de>

	* lib/target-supports.exp (check_effective_target_ident_directive): New proc.
	* c-c++-common/ident-1b.c: Require effective target ident_directive.
	* c-c++-common/ident-2b.c: Same.

diff --git a/gcc/testsuite/c-c++-common/ident-1b.c b/gcc/testsuite/c-c++-common/ident-1b.c
index 69567442a035fc0035c0899fac17944a70fdc9c8..b8b83e64ad25d92284d5d14299b0e0e412574b09 100644 (file)
--- a/gcc/testsuite/c-c++-common/ident-1b.c
+++ b/gcc/testsuite/c-c++-common/ident-1b.c
@@ -2,6 +2,7 @@
  * Make sure scan-assembler turns off .ident unless -fident in testcase */
 /* { dg-do compile } */
 /* { dg-options "-fident" } */
+/* { dg-require-effective-target ident_directive }*/
 int i;
 
 /* { dg-final { scan-assembler "GCC: " { xfail { { hppa*-*-hpux* && { ! lp64 } } || { powerpc-ibm-aix* || powerpc*-*-darwin* } } } } } */

diff --git a/gcc/testsuite/c-c++-common/ident-2b.c b/gcc/testsuite/c-c++-common/ident-2b.c
index fae6a0315718f7922de7cbade5ec4216c326657a..52f0693e164819501a24fafb3bfc4bc77672127f 100644 (file)
--- a/gcc/testsuite/c-c++-common/ident-2b.c
+++ b/gcc/testsuite/c-c++-common/ident-2b.c
@@ -2,6 +2,7 @@
  * Make sure scan-assembler-times turns off .ident unless -fident in testcase */
 /* { dg-do compile } */
 /* { dg-options "-fident" } */
+/* { dg-require-effective-target ident_directive }*/
 int ident;
 
 /* { dg-final { scan-assembler "GCC: " { xfail { { hppa*-*-hpux* && { ! lp64 } } || { powerpc-ibm-aix* || powerpc*-*-darwin* } } } } } */

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 5cbe32ffbd65755c747e80dd5b7f42bd7c46a3ad..0a00972edb592ea5f00a81c31aaba2b5a601263e 100644 (file)
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -10510,3 +10510,12 @@ proc check_symver_available { } {
            }
        }]
 }
+
+# Return 1 if emitted assembly contains .ident directive.
+
+proc check_effective_target_ident_directive {} {
+    return [check_no_messages_and_pattern ident_directive \
+               "(?n)^\[\t\]+\\.ident" assembly {
+       int i;
+    }]
+}