diff options
| author | Daniel Berlin <dberlin@dberlin.org> | 2004-12-24 05:23:10 +0000 |
|---|---|---|
| committer | Daniel Berlin <dberlin@gcc.gnu.org> | 2004-12-24 05:23:10 +0000 |
| commit | ac3bfd867b1e0a702551bcf0581b481885eb4938 (patch) | |
| tree | a627db8a80c09e929338b90c21134a1193390049 /gcc/dwarf2out.c | |
| parent | c1c42f20d6c2ac53feefd4ba02febe6c3ff4d992 (diff) | |
| download | gcc-ac3bfd867b1e0a702551bcf0581b481885eb4938.zip gcc-ac3bfd867b1e0a702551bcf0581b481885eb4938.tar.gz gcc-ac3bfd867b1e0a702551bcf0581b481885eb4938.tar.bz2 | |
re PR tree-optimization/14638 (Variables disappear from debug info at -O1)
2004-12-24 Daniel Berlin <dberlin@dberlin.org>
Fix PR debug/14638
* tree.h (DECL_DEBUG_ALIAS_OF): New macro.
* var-tracking.c (track_expr_p): Don't disqualify tracking of variables
that are aliases of variables we want to track, unless the
original variable is also ignored for debugging purposes.
(VARIABLE_HASH_VAL): Use DECL_UID, so that this is deterministic.
* tree-outof-ssa.c (create_temp): Note who we are a debug alias of.
* dwarf2out.c (dwarf2out_var_location): Add us to the location of
the decl we are an alias of.
From-SVN: r92585
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index beed56b..26174ec 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -13037,6 +13037,7 @@ dwarf2out_var_location (rtx loc_note) rtx prev_insn; static rtx last_insn; static const char *last_label; + tree decl; if (!DECL_P (NOTE_VAR_LOCATION_DECL (loc_note))) return; @@ -13065,8 +13066,10 @@ dwarf2out_var_location (rtx loc_note) last_insn = loc_note; last_label = newloc->label; - - add_var_loc_to_decl (NOTE_VAR_LOCATION_DECL (loc_note), newloc); + decl = NOTE_VAR_LOCATION_DECL (loc_note); + if (DECL_DEBUG_ALIAS_OF (decl)) + decl = DECL_DEBUG_ALIAS_OF (decl); + add_var_loc_to_decl (decl, newloc); } /* We need to reset the locations at the beginning of each |