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[Bug bootstrap/46856] [4.6 regression] internal compiler error in final_scan_insn breaks m68k-linux bootstrap
- From: "mikpe at it dot uu.se" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 9 Dec 2010 23:48:45 +0000
- Subject: [Bug bootstrap/46856] [4.6 regression] internal compiler error in final_scan_insn breaks m68k-linux bootstrap
- Auto-submitted: auto-generated
- References: <bug-46856-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46856
--- Comment #3 from Mikael Pettersson <mikpe at it dot uu.se> 2010-12-09 23:48:36 UTC ---
A bisection identified r166371 as the trigger for this bug:
Author: jakub
Date: Fri Nov 5 19:00:27 2010
New Revision: 166371
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166371
Log:
PR target/45670
* expr.c (expand_expr_real_1) <case MEM_REF>: Use EXPAND_SUM
instead of EXPAND_NORMAL for base expansion.
* gcc.target/i386/pr45670.c: New test.
Reverting that change from gcc-4.6-20101204 prevents the ICE.