[PATCH][ARM][testsuite] Add effective target check for arm conditional execution

[Kyrill Tkachov]

Hi all,

gcc.target/arm/minmax_minus.c is really only valid when we have 
conditional execution available, that is non Thumb1-only targets. I've 
added an effective target check for that and used it in the test so that 
it does not get run and give a false negative when testing Thumb1 targets.

Ok for trunk?

Thanks,
Kyrill

2013-09-13  Kyrylo Tkachov  <kyrylo.tkac...@arm.com>

    * lib/target-supports.exp (check_effective_target_arm_cond_exec):
    New procedure.
    * gcc.target/arm/minmax_minus.c: Check for cond_exec target.diff --git a/gcc/testsuite/gcc.target/arm/minmax_minus.c b/gcc/testsuite/gcc.target/arm/minmax_minus.c
index 4c2dcdf..906342a 100644
--- a/gcc/testsuite/gcc.target/arm/minmax_minus.c
+++ b/gcc/testsuite/gcc.target/arm/minmax_minus.c
@@ -1,4 +1,5 @@
 /* { dg-do compile } */
+/* { dg-require-effective-target arm_cond_exec } */
 /* { dg-options "-O2" } */
 
 #define MAX(a, b) (a > b ? a : b)
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 0fb135c..fbe756e 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -2577,6 +2577,17 @@ proc check_effective_target_arm_thumb2 { } {
     } ""]
 }
 
+# Return 1 if this is an ARM target where conditional execution is available.
+
+proc check_effective_target_arm_cond_exec { } {
+    return [check_no_compiler_messages arm_cond_exec assembly {
+	#if defined(__arm__) && defined(__thumb__) && !defined(__thumb2__)
+	#error FOO
+	#endif
+	int i;
+    } ""]
+}
+
 # Return 1 if this is an ARM cortex-M profile cpu
 
 proc check_effective_target_arm_cortex_m { } {