re PR target/77349 (AIX DWARF debugging offset in 64 bit mode)

PR target/77349
* config/rs6000/xcoff.h (DWARF_OFFSET_SIZE): Define as PTR_SIZE.

From-SVN: r239790

gcc/ChangeLog

+2016-08-26  David Edelsohn  <dje.gcc@gmail.com>
+
+	PR target/77349
+	* config/rs6000/xcoff.h (DWARF_OFFSET_SIZE): Define as PTR_SIZE.
+
 2016-08-26  David Malcolm  <dmalcolm@redhat.com>
 
 	* diagnostic-show-locus.c

gcc/config/rs6000/xcoff.h

@@ -313,6 +313,9 @@
 #define EH_FRAME_THROUGH_COLLECT2 1
 #define EH_TABLES_CAN_BE_READ_ONLY 1
 
+/* AIX Assembler implicitly assumes DWARF 64 bit extension in 64 bit mode.  */
+#define DWARF_OFFSET_SIZE PTR_SIZE
+
 #define ASM_OUTPUT_DWARF_PCREL(FILE,SIZE,LABEL) \
   rs6000_asm_output_dwarf_pcrel ((FILE), (SIZE), (LABEL));