explow.c (promote_mode): Use PROMOTE_FUNCTION_MODE instead of PROMOTE_FOR_CALL_ONLY.

	* explow.c (promote_mode): Use PROMOTE_FUNCTION_MODE instead of
	PROMOTE_FOR_CALL_ONLY.
	* config/arm/arm-protos.h (arm_function_value): Declare.
	* config/arm/arm.h (TARGET_PROMOTE_FUNCTION_ARGS): Define.
	(TARGET_PROMOTE_PROTOTYPES): Return false.
	(arm_function_value): New function.
	* config/arm/arm.h (PROMOTE_FUNCTION_MODE): Define.
	(FUNCTION_VALUE): Call arm_function_value.
	* config/cris/cris.h (PROMOTE_MODE): Rename ...
	(PROMOTE_FUNCTION_MODE): ... to this.
	(PROMOTE_FOR_CALL_ONLY): Remove.
	* config/mmix/mmix.h: Likewise.
	* config/s390/s390.h: Likewise.
	* config/sparc/sparc.h: Likewise.
	* config/sparc/sparc.c: Update comments about PROMOTE_MODE.
	* doc/tm.texi (PROMOTE_FUNCTION_MODE): Document.
	(TARGET_PROMOTE_FUNCTION_MODE, TARGET_PROMOTE_FUNCTION_RETURN): Update.
	(PROMOTE_FOR_CALL_ONLY): Remove.

From-SVN: r80518

2 files changed, 11 insertions, 24 deletions

diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c
index 30b789b..76ccb34 100644
--- a/gcc/config/sparc/sparc.c
+++ b/gcc/config/sparc/sparc.c
@@ -274,20 +274,15 @@ enum processor_type sparc_cpu;
 #undef TARGET_ADDRESS_COST
 #define TARGET_ADDRESS_COST hook_int_rtx_0
 
-/* Return TRUE if the promotion described by PROMOTE_MODE should also be done
-   for outgoing function arguments.
-   This is only needed for TARGET_ARCH64, but since PROMOTE_MODE is a no-op
-   for TARGET_ARCH32 this is ok.  Otherwise we'd need to add a runtime test
-   for this value.  */
+/* This is only needed for TARGET_ARCH64, but since PROMOTE_FUNCTION_MODE is a
+   no-op for TARGET_ARCH32 this is ok.  Otherwise we'd need to add a runtime
+   test for this value.  */
 #undef TARGET_PROMOTE_FUNCTION_ARGS
 #define TARGET_PROMOTE_FUNCTION_ARGS hook_bool_tree_true
 
-/* Return TRUE if the promotion described by PROMOTE_MODE should also be done
-   for the return value of functions.  If this macro is defined, FUNCTION_VALUE
-   must perform the same promotions done by PROMOTE_MODE.
-   This is only needed for TARGET_ARCH64, but since PROMOTE_MODE is a no-op
-   for TARGET_ARCH32 this is ok.  Otherwise we'd need to add a runtime test
-   for this value.  */
+/* This is only needed for TARGET_ARCH64, but since PROMOTE_FUNCTION_MODE is a
+   no-op for TARGET_ARCH32 this is ok.  Otherwise we'd need to add a runtime
+   test for this value.  */
 #undef TARGET_PROMOTE_FUNCTION_RETURN
 #define TARGET_PROMOTE_FUNCTION_RETURN hook_bool_tree_true
 
diff --git a/gcc/config/sparc/sparc.h b/gcc/config/sparc/sparc.h
index 58eb4c8..33c1256 100644
--- a/gcc/config/sparc/sparc.h
+++ b/gcc/config/sparc/sparc.h
@@ -712,24 +712,16 @@ extern struct sparc_cpu_select sparc_select[];
    if ptr_mode and Pmode are the same.  */
 #define POINTERS_EXTEND_UNSIGNED 1
 
-/* A macro to update MODE and UNSIGNEDP when an object whose type
-   is TYPE and which has the specified mode and signedness is to be
-   stored in a register.  This macro is only called when TYPE is a
-   scalar type.  */
-#define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE) \
+/* For TARGET_ARCH64 we need this, as we don't have instructions
+   for arithmetic operations which do zero/sign extension at the same time,
+   so without this we end up with a srl/sra after every assignment to an
+   user variable,  which means very very bad code.  */
+#define PROMOTE_FUNCTION_MODE(MODE, UNSIGNEDP, TYPE) \
 if (TARGET_ARCH64				\
     && GET_MODE_CLASS (MODE) == MODE_INT	\
     && GET_MODE_SIZE (MODE) < UNITS_PER_WORD)	\
   (MODE) = word_mode;
 
-/* This is only needed for TARGET_ARCH64, but since PROMOTE_MODE is a no-op
-   for TARGET_ARCH32 this is ok.  Otherwise we'd need to add a runtime test
-   for this value.  For TARGET_ARCH64 we need it, as we don't have instructions
-   for arithmetic operations which do zero/sign extension at the same time,
-   so without this we end up with a srl/sra after every assignment to an
-   user variable,  which means very very bad code.  */
-#define PROMOTE_FOR_CALL_ONLY
-
 /* Allocation boundary (in *bits*) for storing arguments in argument list.  */
 #define PARM_BOUNDARY (TARGET_ARCH64 ? 64 : 32)