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| author | Jakub Jelinek <jakub@redhat.com> | 2010-03-30 22:16:52 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2010-03-30 22:16:52 +0200 |
| commit | 03a5f060b9bdcf4520645cb4e6c15297e3eea060 (patch) | |
| tree | 62931f856516f4b4de948b98b3788cef3bad0e7d /gcc/var-tracking.c | |
| parent | 8533c9d8ac498572eec1978b30860b487e47ade3 (diff) | |
| download | gcc-03a5f060b9bdcf4520645cb4e6c15297e3eea060.zip gcc-03a5f060b9bdcf4520645cb4e6c15297e3eea060.tar.gz gcc-03a5f060b9bdcf4520645cb4e6c15297e3eea060.tar.bz2 | |
re PR debug/43593 (Var-tracking unnecessarily flushes all call used registers on calls instead of regs invalidated by call)
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.
From-SVN: r157834
Diffstat (limited to 'gcc/var-tracking.c')
| -rw-r--r-- | gcc/var-tracking.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c index bff7d11..e0f7229 100644 --- a/gcc/var-tracking.c +++ b/gcc/var-tracking.c @@ -4170,7 +4170,7 @@ dataflow_set_clear_at_call (dataflow_set *set) int r; for (r = 0; r < FIRST_PSEUDO_REGISTER; r++) - if (TEST_HARD_REG_BIT (call_used_reg_set, r)) + if (TEST_HARD_REG_BIT (regs_invalidated_by_call, r)) var_regno_delete (set, r); if (MAY_HAVE_DEBUG_INSNS) |