Currently on targets like x86_64 darwin which don't support -mx32
-maddress-mode=short,
tests that pass those on dg-options fail with excessive errors at -m64. The
attached patch
resolves this by adding a check_effective_target_maybe_x32 proc to test if the
-mx32
-maddress-mode=short flags are supported. Tested on x86_64-apple-darwin12. Okay
for
gcc trunk?
Jack
2012-11-02 H.J. Lu <hjl.to...@gmail.com>
Jack Howarth <howa...@bromo.med.uc.edu>
* lib/target-supports.exp (check_effective_target_maybe_x32): New proc.
* gcc.target/i386/pr54457.c: Use dg-require-effective-target maybe_x32.
* gcc.target/i386/pr53249.c: Likewise.
Index: gcc/testsuite/gcc.target/i386/pr54457.c
===================================================================
--- gcc/testsuite/gcc.target/i386/pr54457.c (revision 193097)
+++ gcc/testsuite/gcc.target/i386/pr54457.c (working copy)
@@ -1,4 +1,5 @@
/* { dg-do compile { target { ! { ia32 } } } } */
+/* { dg-require-effective-target maybe_x32 } */
/* { dg-options "-O2 -mx32 -maddress-mode=short" } */
extern char array[40];
Index: gcc/testsuite/gcc.target/i386/pr53249.c
===================================================================
--- gcc/testsuite/gcc.target/i386/pr53249.c (revision 193097)
+++ gcc/testsuite/gcc.target/i386/pr53249.c (working copy)
@@ -1,4 +1,5 @@
/* { dg-do compile { target { ! { ia32 } } } } */
+/* { dg-require-effective-target maybe_x32 } */
/* { dg-options "-O2 -mx32 -ftls-model=initial-exec -maddress-mode=short" } */
struct gomp_task
Index: gcc/testsuite/lib/target-supports.exp
===================================================================
--- gcc/testsuite/lib/target-supports.exp (revision 193097)
+++ gcc/testsuite/lib/target-supports.exp (working copy)
@@ -4608,6 +4608,14 @@ proc check_effective_target_lto { } {
return [info exists ENABLE_LTO]
}
+# Return 1 if -mx32 -maddress-mode=short can compile, 0 otherwise.
+
+proc check_effective_target_maybe_x32 { } {
+ return [check_no_compiler_messages maybe_x32 object {
+ void foo (void) {}
+ } "-mx32 -maddress-mode=short"]
+}
+
# Return 1 if this target supports the -fsplit-stack option, 0
# otherwise.
