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| author | Alexandre Oliva <aoliva@redhat.com> | 2011-11-01 02:09:00 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2011-11-01 02:09:00 +0000 |
| commit | 5a9fbcf14adbf0aef998c7b205298a96a7bd8841 (patch) | |
| tree | 312250e8d8088ea8f413facab65cc217f6170c86 /gcc/var-tracking.c | |
| parent | 03e0010d71efedb4a5a9718a68fc4ffdd9e24f5b (diff) | |
| download | gcc-5a9fbcf14adbf0aef998c7b205298a96a7bd8841.zip gcc-5a9fbcf14adbf0aef998c7b205298a96a7bd8841.tar.gz gcc-5a9fbcf14adbf0aef998c7b205298a96a7bd8841.tar.bz2 | |
re PR debug/50869 (ice in vt_expand_var_loc_chain)
PR debug/50869
* cselib.c (cfa_base_preserved_regno): Initialize.
(cselib_expand_value_rtx_1): Don't expand it.
* var-tracking.c (vt_expand_var_loc_chain): Initialize depth.
Check it's only zero if result is NULL.
From-SVN: r180725
Diffstat (limited to 'gcc/var-tracking.c')
| -rw-r--r-- | gcc/var-tracking.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c index 44bab38..11d4efd 100644 --- a/gcc/var-tracking.c +++ b/gcc/var-tracking.c @@ -7764,7 +7764,7 @@ vt_expand_var_loc_chain (variable var, bitmap regs, void *data, bool *pendrecp) bool pending_recursion; rtx loc_from = NULL; struct elt_loc_list *cloc = NULL; - int depth, saved_depth = elcd->depth; + int depth = 0, saved_depth = elcd->depth; /* Clear all backlinks pointing at this, so that we're not notified while we're active. */ @@ -7842,6 +7842,8 @@ vt_expand_var_loc_chain (variable var, bitmap regs, void *data, bool *pendrecp) VAR_LOC_FROM (var) = loc_from; VAR_LOC_DEPTH (var) = depth; + gcc_checking_assert (!depth == !result); + elcd->depth = update_depth (saved_depth, depth); /* Indicate whether any of the dependencies are pending recursion |