grokfield miscompiled with -O9

Richard Henderson
Mon Jan 10 11:38:00 GMT 2000

On Mon, Jan 10, 2000 at 02:03:47AM -0200, Alexandre Oliva wrote:
> How about skipping this simplification just while computing
> nonzero_bits?

This seems safe enough, though a case could be made for continuing
to discard paradoxical subregs.

> 	* combine.c (expand_field_assignment): Do not discard SUBREGs
> 	while computing nonzero_bits.



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