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[Bug rtl-optimization/20756] Clobbers of deleted insns are processed, but left out
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 May 2005 13:34:31 -0000
- Subject: [Bug rtl-optimization/20756] Clobbers of deleted insns are processed, but left out
- References: <20050404201850.20756.amylaar@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-05-13 13:34 -------
Subject: Bug 20756
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: amylaar@gcc.gnu.org 2005-05-13 13:34:19
Modified files:
gcc : basic-block.h
Log message:
PR rtl-optimization/20756:
* basic-block.h (PROP_DEAD_INSN): Define.
* flow.c (propagate_one_insn): Set during mark_set_regs call
for a dead insn.
(mark_set_1): Emit a clobber when we are about to delete a dead insn
that kills a live register.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/basic-block.h.diff?cvsroot=gcc&r1=1.255&r2=1.256
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20756