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-rw-r--r--gcc/tree-ssa-phiopt.cc29
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/tree-ssa-phiopt.cc b/gcc/tree-ssa-phiopt.cc
index 4ddb4d5..616b577 100644
--- a/gcc/tree-ssa-phiopt.cc
+++ b/gcc/tree-ssa-phiopt.cc
@@ -916,6 +916,18 @@ gimple_simplify_phiopt (bool early_p, tree type, gimple *comp_stmt,
"a != 0". */
tree cond = build2_loc (loc, comp_code, boolean_type_node,
cmp0, cmp1);
+
+ if (dump_file && (dump_flags & TDF_FOLDING))
+ {
+ fprintf (dump_file, "\nphiopt match-simplify trying:\n\t");
+ print_generic_expr (dump_file, cond);
+ fprintf (dump_file, " ? ");
+ print_generic_expr (dump_file, arg0);
+ fprintf (dump_file, " : ");
+ print_generic_expr (dump_file, arg1);
+ fprintf (dump_file, "\n");
+ }
+
gimple_match_op op (gimple_match_cond::UNCOND,
COND_EXPR, type, cond, arg0, arg1);
@@ -947,6 +959,18 @@ gimple_simplify_phiopt (bool early_p, tree type, gimple *comp_stmt,
cond = build2_loc (loc,
comp_code, boolean_type_node,
cmp0, cmp1);
+
+ if (dump_file && (dump_flags & TDF_FOLDING))
+ {
+ fprintf (dump_file, "\nphiopt match-simplify trying:\n\t");
+ print_generic_expr (dump_file, cond);
+ fprintf (dump_file, " ? ");
+ print_generic_expr (dump_file, arg1);
+ fprintf (dump_file, " : ");
+ print_generic_expr (dump_file, arg0);
+ fprintf (dump_file, "\n");
+ }
+
gimple_match_op op1 (gimple_match_cond::UNCOND,
COND_EXPR, type, cond, arg1, arg0);
@@ -1078,6 +1102,11 @@ match_simplify_replacement (basic_block cond_bb, basic_block middle_bb,
if (name && TREE_CODE (name) == SSA_NAME)
bitmap_set_bit (inserted_exprs, SSA_NAME_VERSION (name));
}
+ if (dump_file && (dump_flags & TDF_FOLDING))
+ {
+ fprintf (dump_file, "Folded into the sequence:\n");
+ print_gimple_seq (dump_file, seq, 0, TDF_VOPS|TDF_MEMSYMS);
+ }
gsi_insert_seq_before (&gsi, seq, GSI_CONTINUE_LINKING);
}