From f39b1a1aeb13c3a64cd6e82dcc6cd1370507c6ab Mon Sep 17 00:00:00 2001 From: Alexandre Oliva Date: Tue, 30 Oct 2012 23:47:35 +0000 Subject: [PATCH] re PR debug/54551 (DF resets some DEBUG_INSNs unnecessarily) PR debug/54551 PR debug/54693 * valtrack.c (dead_debug_promote_uses): Assert-check that global used bit was clear and initialize entry unconditionally. From-SVN: r193003 --- gcc/ChangeLog | 8 ++++++++ gcc/valtrack.c | 8 +++++--- 2 files changed, 13 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 12b1504232a..4896022a1aa 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2012-10-30 Alexandre Oliva + + PR debug/54551 + PR debug/54693 + * valtrack.c (dead_debug_promote_uses): Assert-check that + global used bit was clear and initialize entry + unconditionally. + 2012-10-30 Eric Botcazou * cse.c (hash_rtx_cb): Replace RTX_UNCHANGING_P with MEM_READONLY_P in diff --git a/gcc/valtrack.c b/gcc/valtrack.c index c1de41c74e7..5eefabd2aed 100644 --- a/gcc/valtrack.c +++ b/gcc/valtrack.c @@ -380,9 +380,11 @@ dead_debug_promote_uses (struct dead_debug_local *debug) if (!debug->global->used) debug->global->used = BITMAP_ALLOC (NULL); - if (bitmap_set_bit (debug->global->used, REGNO (reg))) - entry = dead_debug_global_insert (debug->global, reg, - make_debug_expr_from_rtl (reg)); + bool added = bitmap_set_bit (debug->global->used, REGNO (reg)); + gcc_checking_assert (added); + + entry = dead_debug_global_insert (debug->global, reg, + make_debug_expr_from_rtl (reg)); gcc_checking_assert (entry->dtemp); -- 2.30.2