alpha.md (unaligned_extendhidi_be): Fix.

        * config/alpha/alpha.md (unaligned_extendhidi_be): Fix.
        * config/alpha/unicosmk.h (INIT_TARGET_OPTABS): New.

From-SVN: r45600

gcc/ChangeLog

+2001-09-14  Roman Lechtchinsky  <rl@cs.tu-berlin.de>
+
+	* config/alpha/alpha.md (unaligned_extendhidi_be): Fix.
+	* config/alpha/unicosmk.h (INIT_TARGET_OPTABS): New.
+
 2001-09-14  Nick Clifton  <nickc@cambridge.redhat.com>
 
 	* rtlanal.c (subreg_regno_offset): Add semicolon to end of

gcc/config/alpha/alpha.md

@@ -1848,8 +1848,10 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi"
    (set (match_dup 6)
 	(ashift:DI (match_dup 4)
 		   (ashift:DI
-		     (and:DI (match_dup 5) (const_int 7))
-		     (const_int 8))))
+		     (and:DI
+		       (plus:DI (match_dup 5) (const_int 1))
+		       (const_int 7))
+		     (const_int 3))))
    (set (subreg:DI (match_operand:QI 0 "register_operand" "") 0)
 	(ashiftrt:DI (match_dup 6) (const_int 48)))]
   "WORDS_BIG_ENDIAN"

gcc/config/alpha/unicosmk.h

@@ -648,6 +648,14 @@ ssib_section ()			\
 #define UDIVDI3_LIBCALL	"$uldiv"
 #define DIVDI3_LIBCALL "$sldiv"
 
+/* This is necessary to prevent gcc from generating calls to __divsi3.  */
+
+#define INIT_TARGET_OPTABS					\
+  do {								\
+    sdiv_optab->handlers[(int) SImode].libfunc = NULL_RTX;	\
+    udiv_optab->handlers[(int) SImode].libfunc = NULL_RTX;	\
+  } while (0)
+
 #undef ASM_OUTPUT_SOURCE_LINE
 
 /* We don't need a start file.  */