* config/rs6000/aix.h (STACK_BOUNDARY): Define.

From-SVN: r110095

gcc/ChangeLog

+2006-01-22  David Edelsohn  <edelsohn@gnu.org>
+
+	* config/rs6000/aix.h (STACK_BOUNDARY): Define.
+
 2006-01-22  Paul Brook  <paul@codesourcery.com>
 	Peter Barada  <peter@the-baradas.com>
 
@@ -1352,7 +1356,7 @@
 	* basic-block.h: Remove the prototype for
 	partition_hot_cold_basic_blocks.
 
-2006-01-16  Rafael Ávila de EspÁndola <rafael.espindola@gmail.com>
+2006-01-16  Rafael vila de Espíndola <rafael.espindola@gmail.com>
 
 	* cppspec.c (lang_specific_spec_functions): remove
 	* gcc.c (lookup_spec_function): use static_spec_functions directelly

gcc/config/rs6000/aix.h

@@ -33,6 +33,10 @@
 /* AIX allows r13 to be used in 32-bit mode.  */
 #define FIXED_R13 0
 
+/* 32-bit and 64-bit AIX stack boundary is 128.  */
+#undef  STACK_BOUNDARY
+#define STACK_BOUNDARY 128
+
 /* AIX does not support Altivec.  */
 #undef  TARGET_ALTIVEC
 #define TARGET_ALTIVEC 0
@@ -164,12 +168,12 @@
 
 /* AIX increases natural record alignment to doubleword if the first
    field is an FP double while the FP fields remain word aligned.  */
-#define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED)				\
-  ((TREE_CODE (STRUCT) == RECORD_TYPE						\
-    || TREE_CODE (STRUCT) == UNION_TYPE						\
-    || TREE_CODE (STRUCT) == QUAL_UNION_TYPE)					\
-   && TARGET_ALIGN_NATURAL == 0							\
-   ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED)		\
+#define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED)			\
+  ((TREE_CODE (STRUCT) == RECORD_TYPE					\
+    || TREE_CODE (STRUCT) == UNION_TYPE					\
+    || TREE_CODE (STRUCT) == QUAL_UNION_TYPE)				\
+   && TARGET_ALIGN_NATURAL == 0						\
+   ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED)	\
    : MAX ((COMPUTED), (SPECIFIED)))
 
 /* The AIX ABI isn't explicit on whether aggregates smaller than a