* dwarf2out.c (dbx_reg_number): Check return value from

  LEAF_REG_REMAP and only use it if it is valid.
  (multiple_reg_loc_descriptor): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@113756 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 329acdc..7a012fa 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2006-05-13  Nick Clifton  <nickc@redhat.com>
+
+       * dwarf2out.c (dbx_reg_number): Check return value from
+       LEAF_REG_REMAP and only use it if it is valid.
+       (multiple_reg_loc_descriptor): Likewise.
+
 2006-05-13  Richard Guenther  <rguenther@suse.de>
 
        * config.host <i[34567]86-*-cygwin*>: Append i386/x-cygwin to

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 4ef7d02..accbd01 100644 (file)
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -8477,7 +8477,13 @@ dbx_reg_number (rtx rtl)
   gcc_assert (regno < FIRST_PSEUDO_REGISTER);
 
 #ifdef LEAF_REG_REMAP
-  regno = LEAF_REG_REMAP (regno);
+  {
+    int leaf_reg;
+
+    leaf_reg = LEAF_REG_REMAP (regno);
+    if (leaf_reg != -1)
+      regno = (unsigned) leaf_reg;
+  }
 #endif
 
   return DBX_REGISTER_NUMBER (regno);
@@ -8546,7 +8552,13 @@ multiple_reg_loc_descriptor (rtx rtl, rtx regs)
 
   reg = REGNO (rtl);
 #ifdef LEAF_REG_REMAP
-  reg = LEAF_REG_REMAP (reg);
+  {
+    int leaf_reg;
+
+    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)];