[Bug tree-optimization/101394] ICE on valid code with -O2: SSA corruption: Unable to coalesce ssa_names 10 and 19 which are marked as MUST COALESCE.

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101394

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Keywords|                            |ice-on-valid-code

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think the problem comes from PRE when it does:
   # g_25 = PHI <g_19(ab)(5), g_19(ab)(4)>
-  g_27 = g_25 + 4;
+  pretmp_28 = g_17(ab);