https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58757
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> --- As the author of the testcase kindly advises: /* Test that the smallest positive value is not 0. This needs to be true even when denormals are not supported, so we do not pass any flag like -mieee. If it fails on alpha, see PR 58757. */ Well, the testcase does fail on alpha: Program received signal SIGFPE, Arithmetic exception. 0x00000001200007ac in main () at /space/homedirs/uros/gcc-svn/trunk/gcc/testsuite/gcc.dg/c11-true_min-1.c:14 14 if (f == 0 || d == 0 || l == 0) (gdb) p f $1 = 1.40129846e-45 (gdb) p d $2 = 4.9406564584124654e-324 (gdb) p l $3 = <error reading variable> 0x00000001200007a4 <+84>: fmov $f10,$f10 => 0x00000001200007a8 <+88>: cmpteq $f11,$f10,$f10 0x00000001200007ac <+92>: fbne $f10,0x1200007ec <main+156> f10 0 (raw 0x0000000000000000) f11 2.6524947387065904e-315 (raw 0x0000000020000000)