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author | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-10-12 18:58:38 +0000 |
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committer | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-10-12 18:58:38 +0000 |
commit | 688ff29b2a2ea29629307f2a0d444059391dee7b (patch) | |
tree | 0cd2fe4eab12298b796d2e872b3b8cd073d8ef6c /gcc/tree-ssa-forwprop.c | |
parent | 74daae8261e7e34d2945f7399a987a1a31654e6d (diff) | |
download | gcc-688ff29b2a2ea29629307f2a0d444059391dee7b.tar.gz |
gcc/ChangeLog:
PR debug/41343
PR debug/41447
PR debug/41264
PR debug/41338
* tree.def (DEBUG_EXPR_DECL): New.
* rtl.def (DEBUG_EXPR): New.
* gengtype.c (adjust_field_rtx_def): Handle it.
* tree-ssa.c (propagate_var_def_into_debug_stmts): Rename to...
(insert_debug_temp_for_var_def): ... this. Drop support for
moving. Take iterator for def stmt; insert debug stmt before it.
Scan early for use count and kind in debug stmts.
(propagate_defs_into_debug_stmts): Rename to...
(insert_debug_temps_for_defs): ... this. Likewise.
* tree.h (DEBUG_TEMP_UID): New.
* tree.c (next_debug_decl_uid): New.
(make_node_stat): Count debug decls separately.
(copy_node_stat): Likewise.
* cfgexpand.c (expand_debug_expr): Handle DEBUG_EXPR_DECL.
* var-tracking.c (dv_is_decl_p): Recognize it.
(VALUE_RECURSED_INTO): Apply to DEBUG_EXPRs too.
(track_expr_p): Track expanded DEBUG_EXPR_DECLs.
(vt_expand_loc_callback): Expand DEBUG_EXPRs.
(emit_note_insn_var_location): Don't emit notes for DEBUG_EXPR_DECLs.
* cselib.c (rtx_equal_for_cselib_p): Handle DEBUG_EXPR.
(cselib_hash_rtx): Likewise.
(cselib_expand_value_rtx_1): Use callback for DEBUG_EXPR.
* tree-ssa-operands.c (get_expr_operands): Skip DEBUG_EXPR_DECLs in
debug bind stmts.
* emit-rtl.c (verify_rtx_sharing): Handle DEBUG_EXPR and VALUE.
(copy_rtx_if_shared_1, reset_used_flags, set_used_flags): Likewise.
* rtl.c (copy_rtx): Likewise.
(rtx_equal_p_cb, rtx_equal_p): Handle DEBUG_EXPR.
* print-rtl.c (print_rtx): Likewise.
* sched-vis.c (print_value): Likewise.
(print_insn): Handle DEBUG_EXPR_DECL.
* tree-dump.c (dequeue_and_dump): Likewise.
* tree-pretty-print.c (dump_decl_name, dump_generic_node): Likewise.
* gimple-iterator (gsi_replace): Check for same lhs.
(gsi_remove): Insert debug temps.
* tree-ssa-loop-im.c (rewrite_reciprocal): Replace with same lhs.
(move_computations_stmt): Drop explicit propagation into debug stmts.
(rewrite_bittest): Likewise. Use gsi_remove for propagation.
* tree-ssa-reassoc.c (rewrite_expr_tree, linearize_expr): Likewise.
* tree-ssa-sink.c (statement_sink_location): Likewise.
* tree-ssa-forwprop (forward_propagate_addr_expr): Likewise.
* tree-ssanames.c (release_ssa_name): Adjust for rename.
* tree-flow.h: Likewise.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Don't mark
debug temps without values.
(eliminate_unnecessary_stmts): Don't discard just-inserted
debug stmts.
gcc/testsuite/ChangeLog:
PR debug/41343
PR debug/41447
PR debug/41264
PR debug/41338
* gcc.dg/guality/pr41447-1.c: New.
* gcc.dg/debug/pr41264-1.c: New.
* gcc.dg/debug/pr41343-1.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@152681 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-forwprop.c')
-rw-r--r-- | gcc/tree-ssa-forwprop.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c index 87795a28223..6ba800d8288 100644 --- a/gcc/tree-ssa-forwprop.c +++ b/gcc/tree-ssa-forwprop.c @@ -939,7 +939,6 @@ forward_propagate_addr_expr (tree name, tree rhs) gimple use_stmt; bool all = true; bool single_use_p = has_single_use (name); - bool debug = false; FOR_EACH_IMM_USE_STMT (use_stmt, iter, name) { @@ -950,9 +949,7 @@ forward_propagate_addr_expr (tree name, tree rhs) there is nothing we can do. */ if (gimple_code (use_stmt) != GIMPLE_ASSIGN) { - if (is_gimple_debug (use_stmt)) - debug = true; - else + if (!is_gimple_debug (use_stmt)) all = false; continue; } @@ -995,9 +992,6 @@ forward_propagate_addr_expr (tree name, tree rhs) } } - if (all && debug) - propagate_var_def_into_debug_stmts (name, NULL, NULL); - return all; } |