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author | Ben Cheng <bccheng@google.com> | 2014-04-22 13:33:12 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-04-22 13:33:12 -0700 |
commit | e3cc64dec20832769406aa38cde83c7dd4194bf4 (patch) | |
tree | ef8e39be37cfe0cb69d850043b7924389ff17164 /gcc-4.9/gcc/testsuite/gcc.dg/builtin-bswap-6a.c | |
parent | f33c7b3122b1d7950efa88067c9a156229ba647b (diff) | |
download | toolchain_gcc-e3cc64dec20832769406aa38cde83c7dd4194bf4.tar.gz toolchain_gcc-e3cc64dec20832769406aa38cde83c7dd4194bf4.tar.bz2 toolchain_gcc-e3cc64dec20832769406aa38cde83c7dd4194bf4.zip |
[4.9] GCC 4.9.0 official release refresh
Change-Id: Ic99a7da8b44b789a48aeec93b33e93944d6e6767
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/builtin-bswap-6a.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/builtin-bswap-6a.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/builtin-bswap-6a.c b/gcc-4.9/gcc/testsuite/gcc.dg/builtin-bswap-6a.c new file mode 100644 index 000000000..f93bcde10 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/builtin-bswap-6a.c @@ -0,0 +1,44 @@ +/* { dg-do compile { target arm*-*-* alpha*-*-* i?86-*-* powerpc*-*-* rs6000-*-* x86_64-*-* s390*-*-* } } */ +/* { dg-require-effective-target stdint_types } */ +/* { dg-options "-O2 -fdump-rtl-combine" } */ +/* { dg-additional-options "-march=z900" { target s390-*-* } } */ + +/* The test is similiar to builtin-bswap-6.c but returns 1/2 instead + of 0/1 to prevent GCC from calculating the return value with + arithmetic instead of a comparison. This requires the optimization + level to be bumped up to -O2 at least for x86_64. */ + +#include <stdint.h> + +#define BS(X) __builtin_bswap32(X) + +int foo1 (uint32_t a) +{ + if (BS (a) == 0xA0000) + return 1; + return 2; +} + +int foo2 (uint32_t a) +{ + if (BS (a) != 0xA0000) + return 1; + return 2; +} + +int foo3 (uint32_t a, uint32_t b) +{ + if (BS (a) == BS (b)) + return 1; + return 2; +} + +int foo4 (uint32_t a, uint32_t b) +{ + if (BS (a) != BS (b)) + return 1; + return 2; +} + +/* { dg-final { scan-rtl-dump-not "bswapsi" "combine" } } */ +/* { dg-final { cleanup-rtl-dump "combine" } } */ |