dwarf2out.c (dbx_reg_number): Do leaf register remapping only if the function is leaf.

	* dwarf2out.c (dbx_reg_number): Do leaf register remapping
	only if the function is leaf.
	(multiple_reg_loc_descriptor): Likewise.

From-SVN: r120170

gcc/ChangeLog

+2006-12-23  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* dwarf2out.c (dbx_reg_number): Do leaf register remapping
+	only if the function is leaf.
+	(multiple_reg_loc_descriptor): Likewise.
+
 2006-12-23  Kazu Hirata  <kazu@codesourcery.com>
 
 	* rtl.h (NOTE_EXPECTED_VALUE): Remove.

gcc/dwarf2out.c

@@ -8611,13 +8611,12 @@ dbx_reg_number (rtx rtl)
   gcc_assert (regno < FIRST_PSEUDO_REGISTER);
 
 #ifdef LEAF_REG_REMAP
-  {
-    int leaf_reg;
-
-    leaf_reg = LEAF_REG_REMAP (regno);
-    if (leaf_reg != -1)
-      regno = (unsigned) leaf_reg;
-  }
+  if (current_function_uses_only_leaf_regs)
+    {
+      int leaf_reg = LEAF_REG_REMAP (regno);
+      if (leaf_reg != -1)
+	regno = (unsigned) leaf_reg;
+    }
 #endif
 
   return DBX_REGISTER_NUMBER (regno);
@@ -8686,13 +8685,12 @@ multiple_reg_loc_descriptor (rtx rtl, rtx regs)
 
   reg = REGNO (rtl);
 #ifdef LEAF_REG_REMAP
-  {
-    int leaf_reg;
-
-    leaf_reg = LEAF_REG_REMAP (reg);
-    if (leaf_reg != -1)
-      reg = (unsigned) leaf_reg;
-  }
+  if (current_function_uses_only_leaf_regs)
+    {
+      int leaf_reg = LEAF_REG_REMAP (reg);
+      if (leaf_reg != -1)
+	reg = (unsigned) leaf_reg;
+    }
 #endif
   gcc_assert ((unsigned) DBX_REGISTER_NUMBER (reg) == dbx_reg_number (rtl));
   nregs = hard_regno_nregs[REGNO (rtl)][GET_MODE (rtl)];