b3763384a1
The recent PR95115 change to punt in const_binop on folding operation with non-NaN operands into NaN if flag_trapping_math broke the following testcase, because the x * 0.0 simplification punts just if x maybe a NaN (because NaN * 0.0 is NaN not 0.0) or if one of the operands could be negative zero. But Inf * 0.0 or -Inf * 0.0 is also NaN, not 0.0, so when NaNs are honored we need to punt for possible infinities too. 2022-02-05 Jakub Jelinek <jakub@redhat.com> PR tree-optimization/104389 * match.pd (x * 0 -> 0): Punt if x maybe infinite and NaNs are honored. * gcc.dg/pr104389.c: New test. |
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README
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