Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/c-c++-common/spec-barrier-1.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/c-c++-common/spec-barrier-1.c Thu Oct 25 07:37:49 2018 +0900 @@ -0,0 +1,38 @@ +/* { dg-do run } */ +/* { dg-options "-O" } */ + +/* Test that __builtin_speculation_safe_value returns the correct value. */ +/* This test will cause an unfiltered warning to be emitted on targets + that have not implemented support for speculative execution + barriers. They should fix that rather than disabling this + test. */ +char a = 1; +short b = 2; +int c = 3; +long d = 4; +long long e = 5; +int *f = (int*) &c; +#ifdef __SIZEOF_INT128__ +__int128 g = 9; +#endif + +int main () +{ + if (__builtin_speculation_safe_value (a) != 1) + __builtin_abort (); + if (__builtin_speculation_safe_value (b) != 2) + __builtin_abort (); + if (__builtin_speculation_safe_value (c) != 3) + __builtin_abort (); + if (__builtin_speculation_safe_value (d) != 4) + __builtin_abort (); + if (__builtin_speculation_safe_value (e) != 5) + __builtin_abort (); + if (__builtin_speculation_safe_value (f) != &c) + __builtin_abort (); +#ifdef __SIZEOF_INT128__ + if (__builtin_speculation_safe_value (g) != 9) + __builtin_abort (); +#endif + return 0; +}