Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/pr29921-2.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* With -ffast-math, the latice value for sum2 used to change from NaN to VARYING, in turn causing the lattice value of sum1 * sum2 change from NaN to 0 (since sum1 is believed to be 0 at that moment, and 0 * VARYING = 0 with -ffast-math), which caused an ICE. */ /* { dg-do compile } */ /* { dg-options "-O2 -ffast-math" } */ int foo (float *array, int end) { int i; float sum1, sum2; sum2 = 0; for (i = 0; i < end; i++) sum2 = sum2+array[i]; sum2 = 1./sum2; sum1 = 0.; for (i = 0; i < end; i++) sum1 = sum1+array[i]; sum1 = sum1 * sum2; if (-10.0 / sum1 < 5.E-5) end = 0; return end; }