Hi! This got also fixed with r17-2843.
Tested on x86_64-linux and i686-linux, committed to trunk as obvious. 2026-08-03 Jakub Jelinek <[email protected]> PR tree-optimization/126547 * gcc.dg/torture/pr126547.c: New test. --- gcc/testsuite/gcc.dg/torture/pr126547.c.jj 2026-08-03 12:58:33.127328964 +0200 +++ gcc/testsuite/gcc.dg/torture/pr126547.c 2026-08-03 12:59:58.169244957 +0200 @@ -0,0 +1,31 @@ +/* PR tree-optimization/126547 */ +/* { dg-do run } */ + +#if __LDBL_HAS_INFINITY__ +[[gnu::noipa]] static int +foo (long double a1, long double a2) +{ + if (a1 >= 1.0 && a1 <= 8.0) + { + long double d = a1 / a2; + int n = 0; + if (d >= __builtin_infl ()) + n += 1; + if (a2 > 0.0L) + n += 2; + return n; + } + else + return -1; +} +#endif + +int +main () +{ +#if __LDBL_HAS_INFINITY__ + if (__builtin_isinf (1.0 / __LDBL_DENORM_MIN__) + && foo (1.0, __LDBL_DENORM_MIN__) != 3) + __builtin_abort (); +#endif +} Jakub
