* dwarf2out.c (mem_loc_descriptor): Handle IF_THEN_ELSE.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@164762 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ae7d85d..9f3bccc 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,7 @@
 2010-09-30  Jakub Jelinek  <jakub@redhat.com>
 
+       * dwarf2out.c (mem_loc_descriptor): Handle IF_THEN_ELSE.
+
        PR tree-optimization/31261
        * fold-const.c (fold_binary): Optimize ((A & N) + B) & M
        for constants M and N, M == (1LL << cst) - 1 && (N & M) == M.

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 735a0c2..9136eaa 100644 (file)
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -14162,8 +14162,32 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
        }
       break;
 
-    case COMPARE:
     case IF_THEN_ELSE:
+      {
+       dw_loc_descr_ref op2, bra_node, drop_node;
+       op0 = mem_loc_descriptor (XEXP (rtl, 0), mode,
+                                 VAR_INIT_STATUS_INITIALIZED);
+       op1 = mem_loc_descriptor (XEXP (rtl, 1), mode,
+                                 VAR_INIT_STATUS_INITIALIZED);
+       op2 = mem_loc_descriptor (XEXP (rtl, 2), mode,
+                                 VAR_INIT_STATUS_INITIALIZED);
+       if (op0 == NULL || op1 == NULL || op2 == NULL)
+         break;
+
+       mem_loc_result = op1;
+       add_loc_descr (&mem_loc_result, op2);
+       add_loc_descr (&mem_loc_result, op0);
+       bra_node = new_loc_descr (DW_OP_bra, 0, 0);
+       add_loc_descr (&mem_loc_result, bra_node);
+       add_loc_descr (&mem_loc_result, new_loc_descr (DW_OP_swap, 0, 0));
+       drop_node = new_loc_descr (DW_OP_drop, 0, 0);
+       add_loc_descr (&mem_loc_result, drop_node);
+       bra_node->dw_loc_oprnd1.val_class = dw_val_class_loc;
+       bra_node->dw_loc_oprnd1.v.val_loc = drop_node;
+      }
+      break;
+
+    case COMPARE:
     case ROTATE:
     case ROTATERT:
     case TRUNCATE: