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[Bug rtl-optimization/53519] [4.7/4.8 Regression] ice in do_SUBST, at combine.c:707
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 30 May 2012 06:53:53 +0000
- Subject: [Bug rtl-optimization/53519] [4.7/4.8 Regression] ice in do_SUBST, at combine.c:707
- Auto-submitted: auto-generated
- References: <bug-53519-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53519
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-05-30 06:53:53 UTC ---
Author: jakub
Date: Wed May 30 06:53:46 2012
New Revision: 188001
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188001
Log:
PR rtl-optimization/53519
* combine.c (simplify_shift_const_1) <case NOT>: Use constm1_rtx
instead of GEN_INT (GET_MODE_MASK (mode)) as second operand of XOR.
* gcc.c-torture/compile/pr53519.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr53519.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/combine.c
trunk/gcc/testsuite/ChangeLog