@@ -1,11 +1,10 @@
/* { 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-*-* } } */
-/* The test intentionally returns 1/2 instead of the obvious 0/1 to
- prevent GCC from calculating the return value with arithmetic
- instead of a comparison. */
+/* The branch cost setting prevents the return value from being
+ calculated with arithmetic instead of doing a compare. */
+/* { dg-additional-options "-march=z900 -mbranch-cost=0" { target s390*-*-* } } */
#include <stdint.h>
@@ -15,28 +14,28 @@ int foo1 (uint32_t a)
{
if (BS (a) == 0xA0000)
return 1;
- return 2;
+ return 0;
}
int foo2 (uint32_t a)
{
if (BS (a) != 0xA0000)
return 1;
- return 2;
+ return 0;
}
int foo3 (uint32_t a, uint32_t b)
{
if (BS (a) == BS (b))
return 1;
- return 2;
+ return 0;
}
int foo4 (uint32_t a, uint32_t b)
{
if (BS (a) != BS (b))
return 1;
- return 2;
+ return 0;
}
/* { dg-final { scan-rtl-dump-not "bswapsi" "combine" } } */
@@ -3,9 +3,9 @@
/* { dg-require-effective-target lp64 } */
/* { dg-options "-O -fdump-rtl-combine" } */
-/* The test intentionally returns 1/2 instead of the obvious 0/1 to
- prevent GCC from calculating the return value with arithmetic
- instead of a comparison. */
+/* The branch cost setting prevents the return value from being
+ calculated with arithmetic instead of doing a compare. */
+/* { dg-additional-options "-mbranch-cost=0" { target s390x-*-* } } */
#include <stdint.h>
@@ -15,28 +15,28 @@ int foo1 (uint64_t a)
{
if (BS (a) == 0xA00000000)
return 1;
- return 2;
+ return 0;
}
int foo2 (uint64_t a)
{
if (BS (a) != 0xA00000000)
return 1;
- return 2;
+ return 0;
}
int foo3 (uint64_t a, uint64_t b)
{
if (BS (a) == BS (b))
return 1;
- return 2;
+ return 0;
}
int foo4 (uint64_t a, uint64_t b)
{
if (BS (a) != BS (b))
return 1;
- return 2;
+ return 0;
}
/* { dg-final { scan-rtl-dump-not "bswapdi" "combine" } } */