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| author | Thomas Preud'homme <thomas.preudhomme@arm.com> | 2015-08-04 02:11:58 +0000 |
|---|---|---|
| committer | Thomas Preud'homme <thopre01@gcc.gnu.org> | 2015-08-04 02:11:58 +0000 |
| commit | 43d56ad78ddc903e61abeaa2efaff2efa2de941d (patch) | |
| tree | 4665f4d18b1ff681b729f8e6332f6317ef394f2d /gcc/loop-invariant.c | |
| parent | 9ebddeb045135d827eb59bfa822a0b026ea39f04 (diff) | |
| download | gcc-43d56ad78ddc903e61abeaa2efaff2efa2de941d.zip gcc-43d56ad78ddc903e61abeaa2efaff2efa2de941d.tar.gz gcc-43d56ad78ddc903e61abeaa2efaff2efa2de941d.tar.bz2 | |
re PR debug/67043 (-fcompare-debug failure with -O3)
2015-08-04 Thomas Preud'homme <thomas.preudhomme@arm.com>
gcc/
PR tree-optimization/67043
* loop-invariant.c (move_invariant_reg): Recompute luids in loop
preheader after hoisting invariant in it.
(find_defs): Force recomputation of all luids.
gcc/testsuite/
PR tree-optimization/67043
* gcc.dg/pr67043.c: New test.
From-SVN: r226540
Diffstat (limited to 'gcc/loop-invariant.c')
| -rw-r--r-- | gcc/loop-invariant.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/loop-invariant.c b/gcc/loop-invariant.c index 1fdb84d..52c8ae8 100644 --- a/gcc/loop-invariant.c +++ b/gcc/loop-invariant.c @@ -676,6 +676,8 @@ find_defs (struct loop *loop) df_remove_problem (df_chain); df_process_deferred_rescans (); df_chain_add_problem (DF_UD_CHAIN); + df_live_add_problem (); + df_live_set_all_dirty (); df_set_flags (DF_RD_PRUNE_DEAD_DEFS); df_analyze_loop (loop); check_invariant_table_size (); @@ -1629,6 +1631,7 @@ move_invariant_reg (struct loop *loop, unsigned invno) fprintf (dump_file, "Invariant %d moved without introducing a new " "temporary register\n", invno); reorder_insns (inv->insn, inv->insn, BB_END (preheader)); + df_recompute_luids (preheader); /* If there is a REG_EQUAL note on the insn we just moved, and the insn is in a basic block that is not always executed or the note |