[Bug tree-optimization/66623] Unsafe FP math reduction used in strict math mode

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66623

vries at gcc dot gnu.org changed:

           What    |Removed                     |Added
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                 CC|                            |vries at gcc dot gnu.org

--- Comment #3 from vries at gcc dot gnu.org ---
Created attachment 36059
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36059&action=edit
double-reduc-vect.c (executable testcase on x86_64)

$ gcc -O2 -ftree-vectorize double-reduc-vect.c && ./a.out 
reference: 396017170
res: 396017172
Aborted (core dumped)

$ gcc -O2 -ftree-vectorize double-reduc-vect.c -m32 && ./a.out 
reference: 396017170
res: 396017173
Aborted (core dumped)