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[PATCH]: Fix 930503-1.c infinite loop in PRE

From: Daniel Berlin <dberlin at dberlin dot org>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Fri, 16 Jul 2004 00:18:06 -0400
Subject: [PATCH]: Fix 930503-1.c infinite loop in PRE

Fixing post-dominators (or something recently) seems to have triggered a problem in PRE that causes it to infinite loop and consume all memory. We forgot to connect infinite loop edges to EXIT, so that we incorrectly thought block 1 had only one successor, itself, causing us to translate the values again and again.

Fixed and commited, tested on i686-pc-linux-gnu.

Attachment: prediff.diff
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