[Bug rtl-optimization/23478] [3.4 regression] Miscompilation due to reloading of a var that is also used in EH pad

Mon, 22 Aug 2005 09:59:08 -0700 

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-08-22 
16:59 -------
Subject: Bug 23478

CVSROOT:        /cvs/gcc
Module name:    gcc
Changes by:     [EMAIL PROTECTED]       2005-08-22 16:58:50

Modified files:
        gcc            : ChangeLog flow.c global.c regs.h 
        gcc/testsuite  : ChangeLog 
Added files:
        gcc/testsuite/g++.dg/opt: pr23478.C 

Log message:
        PR rtl-optimization/23478
        * regs.h (reg_info): Add throw_calls_crossed.
        (REG_N_THROWING_CALLS_CROSSED): Define.
        * flow.c (allocate_reg_life_data): Initialize
        REG_N_THROWING_CALLS_CROSSED.
        (propagate_one_insn, attempt_auto_inc): Update
        REG_N_THROWING_CALLS_CROSSED.
        * global.c (global_alloc): Don't allocate pseudos across
        calls that may throw.
        
        * g++.dg/opt/pr23478.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9799&r2=2.9800
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/flow.c.diff?cvsroot=gcc&r1=1.634&r2=1.635
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/global.c.diff?cvsroot=gcc&r1=1.130&r2=1.131
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/regs.h.diff?cvsroot=gcc&r1=1.39&r2=1.40
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5949&r2=1.5950
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/opt/pr23478.C.diff?cvsroot=gcc&r1=NONE&r2=1.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23478

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