X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=blobdiff_plain;f=libgomp%2Ftestsuite%2Flibgomp.c%2Fatomic-6.c;fp=libgomp%2Ftestsuite%2Flibgomp.c%2Fatomic-6.c;h=59baf7dd3e20b744980748c5386384f7f0ec2a6a;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/libgomp/testsuite/libgomp.c/atomic-6.c b/libgomp/testsuite/libgomp.c/atomic-6.c new file mode 100644 index 00000000..59baf7dd --- /dev/null +++ b/libgomp/testsuite/libgomp.c/atomic-6.c @@ -0,0 +1,38 @@ +/* PR middle-end/36106 */ +/* { dg-options "-O2" } */ +/* { dg-options "-O2 -mieee" { target alpha*-*-* } } */ +/* { dg-options "-O2 -march=i586" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */ + +#ifdef __i386__ +# include "cpuid.h" +#endif + +extern void abort (void); + +union { unsigned long long l; double d; } u = { .l = 0x7ff0000000072301ULL }; + +int __attribute__((noinline)) +do_test (void) +{ +#pragma omp atomic + u.d += 1.0L; + return 0; +} + +int +main (void) +{ +#ifdef __i386__ + unsigned int eax, ebx, ecx, edx; + + if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx)) + return 0; + + if (!(edx & bit_CMPXCHG8B)) + return 0; +#endif + + do_test (); + + return 0; +}