diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-05-10 18:28:03 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-05-10 18:28:03 +0000 |
| commit | f145fac4afd9586470a3337fe49279ad4a289b33 (patch) | |
| tree | d86819bbb461712b2745a75881652b0b4f22b6e0 /gcc/haifa-sched.c | |
| parent | 2ad972c5ac43a624aa71b28791ae54ffacff57cf (diff) | |
| download | gcc-f145fac4afd9586470a3337fe49279ad4a289b33.tar.gz | |
PR debug/44028
* haifa-sched.c (schedule_insn): When clearing INSN_VAR_LOCATION_LOC,
clear also INSN_REG_USE_LIST.
* gcc.dg/pr44028.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@159240 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/haifa-sched.c')
| -rw-r--r-- | gcc/haifa-sched.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index b7f0cfce359..0dd220d7302 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -1695,6 +1695,7 @@ schedule_insn (rtx insn) sd_iterator_cond (&sd_it, &dep);) { rtx dbg = DEP_PRO (dep); + struct reg_use_data *use, *next; gcc_assert (DEBUG_INSN_P (dbg)); @@ -1716,6 +1717,14 @@ schedule_insn (rtx insn) INSN_VAR_LOCATION_LOC (dbg) = gen_rtx_UNKNOWN_VAR_LOC (); df_insn_rescan (dbg); + /* Unknown location doesn't use any registers. */ + for (use = INSN_REG_USE_LIST (dbg); use != NULL; use = next) + { + next = use->next_insn_use; + free (use); + } + INSN_REG_USE_LIST (dbg) = NULL; + /* We delete rather than resolve these deps, otherwise we crash in sched_free_deps(), because forward deps are expected to be released before backward deps. */ |