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[PATCH] Handle different mode size conversions involving vectors in convert_move (PR rtl-optimization/16104)

From: Jakub Jelinek <jakub at redhat dot com>
To: Richard Henderson <rth at redhat dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Thu, 13 Jan 2005 10:23:55 -0500
Subject: [PATCH] Handle different mode size conversions involving vectors in convert_move (PR rtl-optimization/16104)
Reply-to: Jakub Jelinek <jakub at redhat dot com>

Hi!

Casts from vectors to integers of the same sizes or vice versa are
NOP_EXPRs, so the assumption that there will be only modes
of the same bitsize if at least one of them is vector mode
after folding or tree optimizers is wrong.

The following patches (HEAD and 3.4.x) fixes it.
The testcase still ICEs at -O3 on x86_64 -m32 -msse2 and at
-O{0,3,s} on x86_64 -m64, but that seems to be unrelated bugs,
without this patch it ices with -O{0,1,2,3,s} {-m32 -msse2,-m64}.

Ok to commit?

	Jakub

Attachment: PR16104-HEAD
Description: Text document

Attachment: PR16104-3.4
Description: Text document

Follow-Ups:
- Re: [PATCH] Handle different mode size conversions involving vectors in convert_move (PR rtl-optimization/16104)
  - From: Richard Henderson

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