mips.h: Use #elif in preprocessor conditions.

gcc/
	* config/mips/mips.h: Use #elif in preprocessor conditions.

From-SVN: r199330

gcc/ChangeLog

 2013-05-25  Richard Sandiford  <rdsandiford@googlemail.com>
 
+	* config/mips/mips.h: Use #elif in preprocessor conditions.
+
+2013-05-25  Richard Sandiford  <rdsandiford@googlemail.com>
+
 	PR target/53916
 	* config/mips/constraints.md (kl): New constraint.
 	* config/mips/mips.md (divmod<mode>4, udivmod<mode>4): Delete.

gcc/config/mips/mips.h

@@ -614,39 +614,25 @@ struct mips_cpu_info {
 #endif
 
 #ifndef MULTILIB_ISA_DEFAULT
-#  if MIPS_ISA_DEFAULT == 1
-#    define MULTILIB_ISA_DEFAULT "mips1"
-#  else
-#    if MIPS_ISA_DEFAULT == 2
-#      define MULTILIB_ISA_DEFAULT "mips2"
-#    else
-#      if MIPS_ISA_DEFAULT == 3
-#        define MULTILIB_ISA_DEFAULT "mips3"
-#      else
-#        if MIPS_ISA_DEFAULT == 4
-#          define MULTILIB_ISA_DEFAULT "mips4"
-#        else
-#          if MIPS_ISA_DEFAULT == 32
-#            define MULTILIB_ISA_DEFAULT "mips32"
-#          else
-#            if MIPS_ISA_DEFAULT == 33
-#              define MULTILIB_ISA_DEFAULT "mips32r2"
-#            else
-#              if MIPS_ISA_DEFAULT == 64
-#                define MULTILIB_ISA_DEFAULT "mips64"
-#              else
-#		 if MIPS_ISA_DEFAULT == 65
-#		   define MULTILIB_ISA_DEFAULT "mips64r2"
-#	         else
-#                  define MULTILIB_ISA_DEFAULT "mips1"
-#		 endif
-#              endif
-#            endif
-#          endif
-#        endif
-#      endif
-#    endif
-#  endif
+#if MIPS_ISA_DEFAULT == 1
+#define MULTILIB_ISA_DEFAULT "mips1"
+#elif MIPS_ISA_DEFAULT == 2
+#define MULTILIB_ISA_DEFAULT "mips2"
+#elif MIPS_ISA_DEFAULT == 3
+#define MULTILIB_ISA_DEFAULT "mips3"
+#elif MIPS_ISA_DEFAULT == 4
+#define MULTILIB_ISA_DEFAULT "mips4"
+#elif MIPS_ISA_DEFAULT == 32
+#define MULTILIB_ISA_DEFAULT "mips32"
+#elif MIPS_ISA_DEFAULT == 33
+#define MULTILIB_ISA_DEFAULT "mips32r2"
+#elif MIPS_ISA_DEFAULT == 64
+#define MULTILIB_ISA_DEFAULT "mips64"
+#elif MIPS_ISA_DEFAULT == 65
+#define MULTILIB_ISA_DEFAULT "mips64r2"
+#else
+#define MULTILIB_ISA_DEFAULT "mips1"
+#endif
 #endif
 
 #ifndef MIPS_ABI_DEFAULT
@@ -657,21 +643,13 @@ struct mips_cpu_info {
 
 #if MIPS_ABI_DEFAULT == ABI_32
 #define MULTILIB_ABI_DEFAULT "mabi=32"
-#endif
-
-#if MIPS_ABI_DEFAULT == ABI_O64
+#elif MIPS_ABI_DEFAULT == ABI_O64
 #define MULTILIB_ABI_DEFAULT "mabi=o64"
-#endif
-
-#if MIPS_ABI_DEFAULT == ABI_N32
+#elif MIPS_ABI_DEFAULT == ABI_N32
 #define MULTILIB_ABI_DEFAULT "mabi=n32"
-#endif
-
-#if MIPS_ABI_DEFAULT == ABI_64
+#elif MIPS_ABI_DEFAULT == ABI_64
 #define MULTILIB_ABI_DEFAULT "mabi=64"
-#endif
-
-#if MIPS_ABI_DEFAULT == ABI_EABI
+#elif MIPS_ABI_DEFAULT == ABI_EABI
 #define MULTILIB_ABI_DEFAULT "mabi=eabi"
 #endif
 
@@ -743,9 +721,9 @@ struct mips_cpu_info {
 #define MIPS_ISA_SYNCI_SPEC \
   "%{msynci|mno-synci:;:%{mips32r2|mips64r2:-msynci;:-mno-synci}}"
 
-#if MIPS_ABI_DEFAULT == ABI_O64 \
-  || MIPS_ABI_DEFAULT == ABI_N32 \
-  || MIPS_ABI_DEFAULT == ABI_64
+#if (MIPS_ABI_DEFAULT == ABI_O64 \
+     || MIPS_ABI_DEFAULT == ABI_N32 \
+     || MIPS_ABI_DEFAULT == ABI_64)
 #define OPT_ARCH64 "mabi=32|mgp32:;"
 #define OPT_ARCH32 "mabi=32|mgp32"
 #else
@@ -839,6 +817,10 @@ struct mips_cpu_info {
 				 && TARGET_OCTEON			\
 				 && !TARGET_MIPS16)
 
+#define ISA_HAS_DIV3		((TARGET_LOONGSON_2EF			\
+				  || TARGET_LOONGSON_3A)		\
+				 && !TARGET_MIPS16)
+
 /* ISA has the floating-point conditional move instructions introduced
    in mips4.  */
 #define ISA_HAS_FP_CONDMOVE	((ISA_MIPS4				\
@@ -1361,8 +1343,8 @@ struct mips_cpu_info {
 #define MAX_FIXED_MODE_SIZE LONG_DOUBLE_TYPE_SIZE
 
 #ifdef IN_LIBGCC2
-#if  (defined _ABIN32 && _MIPS_SIM == _ABIN32) \
-  || (defined _ABI64 && _MIPS_SIM == _ABI64)
+#if ((defined _ABIN32 && _MIPS_SIM == _ABIN32) \
+     || (defined _ABI64 && _MIPS_SIM == _ABI64))
 #  define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
 # else
 #  define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
@@ -2868,9 +2850,8 @@ while (0)
 	jal " USER_LABEL_PREFIX #FUNC "\n\
 	.set pop\n\
 	" TEXT_SECTION_ASM_OP);
-#endif /* Switch to #elif when we're no longer limited by K&R C.  */
-#if (defined _ABIN32 && _MIPS_SIM == _ABIN32) \
-   || (defined _ABI64 && _MIPS_SIM == _ABI64)
+#elif ((defined _ABIN32 && _MIPS_SIM == _ABIN32) \
+       || (defined _ABI64 && _MIPS_SIM == _ABI64))
 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)	\
    asm (SECTION_OP "\n\
 	.set push\n\