https://gcc.gnu.org/g:2d18e65b09c735360f51339de8b4063835092577
commit 2d18e65b09c735360f51339de8b4063835092577 Author: Alexandre Oliva <[email protected]> Date: Fri Jan 16 19:22:15 2026 -0300 testsuite: require c99_runtime for ldexp optimizations ldexpf and ldexpl are only optimized as expected when the target libc is known to have C99 support, so don't expect those optimizations when HAVE_C99_RUNTIME is not set by builtins-config.h. for gcc/testsuite/ChangeLog * gcc.dg/tree-ssa/ldexp.c: Require HAVE_C99_RUNTIME to test ldexpf and ldexpl. Diff: --- gcc/testsuite/gcc.dg/tree-ssa/ldexp.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ldexp.c b/gcc/testsuite/gcc.dg/tree-ssa/ldexp.c index 92bcf588b16a..ae555101c7e0 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/ldexp.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/ldexp.c @@ -3,6 +3,8 @@ /* { dg-final { scan-assembler-not "\tfmul\t" } } */ +#include "../builtins-config.h" + #define TEST(TYPE, BUILTIN, CONST, NAME) \ TYPE test_##NAME##_1(TYPE a, int i) \ { \ @@ -28,5 +30,9 @@ } TEST(double, ldexp, 8.0, double_ldexp) +#if HAVE_C99_RUNTIME +/* If libc is not known to have these functions, introduced in C99, the + compiler won't optimize them. */ TEST(float, ldexpf, 8.0f, float_ldexp) TEST(long double, ldexpl, 8.0L, long_ldexp) +#endif
