[Bug debug/43593] Var-tracking unnecessarily flushes all call used registers on calls instead of regs invalidated by call

[jakub 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


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43593