512429a885
When we gimplify a vector CTOR the original CONSTRUCTOR tree remains but we fail to recompute flags such as TREE_SIDE_EFFECTS. This causes later GENERIC folding of them in vector lowering to give up since the match.pd machinery is careful about TREE_SIDE_EFFECTS. Fixing this makes vector lowering produce much less garbage and thus following the IL for PR99793 easier. 2021-04-01 Richard Biener <rguenther@suse.de> PR tree-optimization/99863 * gimplify.c (gimplify_init_constructor): Recompute vector constructor flags. |
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