> builtin-bswap-9.c fails on ia64, it still generates bswap:DI for foo2,
> foo3 and foo4.
It turns out that you need to combine 4 instructions on the IA-64 to get rid
of the bswaps, so -O2 (actually -fexpensive-optimizations) is required.
Tested on x86_64-suse-linux, applied on the mainline.
2013-05-28 Eric Botcazou <ebotca...@adacore.com>
* gcc.dg/builtin-bswap-8.c: Compile at -O2.
* gcc.dg/builtin-bswap-9.c: Likewise.
--
Eric BotcazouIndex: gcc.dg/builtin-bswap-8.c
===================================================================
--- gcc.dg/builtin-bswap-8.c (revision 199343)
+++ gcc.dg/builtin-bswap-8.c (working copy)
@@ -1,7 +1,7 @@
/* { dg-do compile { target arm*-*-* alpha*-*-* i?86-*-* powerpc*-*-* rs6000-*-* x86_64-*-* s390*-*-* } } */
/* { dg-require-effective-target stdint_types } */
-/* { dg-options "-O -fdump-rtl-combine" } */
-/* { dg-options "-O -fdump-rtl-combine -march=z900" { target s390-*-* } } */
+/* { dg-options "-O2 -fdump-rtl-combine" } */
+/* { dg-options "-O2 -fdump-rtl-combine -march=z900" { target s390-*-* } } */
#include <stdint.h>
Index: gcc.dg/builtin-bswap-9.c
===================================================================
--- gcc.dg/builtin-bswap-9.c (revision 199343)
+++ gcc.dg/builtin-bswap-9.c (working copy)
@@ -1,7 +1,7 @@
/* { dg-do compile { target arm*-*-* alpha*-*-* ia64*-*-* x86_64-*-* s390x-*-* powerpc*-*-* rs6000-*-* } } */
/* { dg-require-effective-target stdint_types } */
/* { dg-require-effective-target lp64 } */
-/* { dg-options "-O -fdump-rtl-combine" } */
+/* { dg-options "-O2 -fdump-rtl-combine" } */
#include <stdint.h>
