OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

builtin-bswap-6.c: Adjust return value to disable GCC optimization. 

2014-04-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* gcc.dg/builtin-bswap-6.c: Adjust return value to disable GCC
	optimization.
	* gcc.dg/builtin-bswap-7.c: Likewise.

From-SVN: r209132
This commit is contained in:
Andreas Krebbel 2014-04-04 21:58:34 +00:00 committed by Andreas Krebbel
parent 090ec70209
commit 961e89f297
3 changed files with 22 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2014-04-04 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* gcc.dg/builtin-bswap-6.c: Adjust return value to disable GCC
optimization.
* gcc.dg/builtin-bswap-7.c: Likewise.
2014-04-04 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58207

12
gcc/testsuite/gcc.dg/builtin-bswap-6.c
View File

@ -3,6 +3,10 @@
/* { 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. */
#include <stdint.h>
#define BS(X) __builtin_bswap32(X)
@ -11,28 +15,28 @@ int foo1 (uint32_t a)
{
if (BS (a) == 0xA0000)
return 1;
return 0;
return 2;
}
int foo2 (uint32_t a)
{
if (BS (a) != 0xA0000)
return 1;
return 0;
return 2;
}
int foo3 (uint32_t a, uint32_t b)
{
if (BS (a) == BS (b))
return 1;
return 0;
return 2;
}
int foo4 (uint32_t a, uint32_t b)
{
if (BS (a) != BS (b))
return 1;
return 0;
return 2;
}
/* { dg-final { scan-rtl-dump-not "bswapsi" "combine" } } */

12
gcc/testsuite/gcc.dg/builtin-bswap-7.c
View File

@ -3,6 +3,10 @@
/* { 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. */
#include <stdint.h>
#define BS(X) __builtin_bswap64(X)
@ -11,28 +15,28 @@ int foo1 (uint64_t a)
{
if (BS (a) == 0xA00000000)
return 1;
return 0;
return 2;
}
int foo2 (uint64_t a)
{
if (BS (a) != 0xA00000000)
return 1;
return 0;
return 2;
}
int foo3 (uint64_t a, uint64_t b)
{
if (BS (a) == BS (b))
return 1;
return 0;
return 2;
}
int foo4 (uint64_t a, uint64_t b)
{
if (BS (a) != BS (b))
return 1;
return 0;
return 2;
}
/* { dg-final { scan-rtl-dump-not "bswapdi" "combine" } } */