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[Bug debug/43593] Var-tracking unnecessarily flushes all call used registers on calls instead of regs invalidated by call
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Mar 2010 20:17:07 -0000
- Subject: [Bug debug/43593] Var-tracking unnecessarily flushes all call used registers on calls instead of regs invalidated by call
- References: <bug-43593-87@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from jakub at gcc dot gnu dot org 2010-03-30 20:17 -------
Subject: Bug 43593
Author: jakub
Date: Tue Mar 30 20:16:52 2010
New Revision: 157834
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157834
Log:
PR debug/43593
* var-tracking.c (dataflow_set_clear_at_call): Invalidate
just regs_invalidated_by_call instead all call_used_reg_set
registers.
* gcc.dg/guality/pr43593.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/guality/pr43593.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/var-tracking.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43593