[PATCH, MIPS] Fix *extzv_trunc<mode>_exts

[Adam Nemet]

This is an oversight from the time I initially added Octeon support.  The DI
mode instance of this template makes no sense so I am removing it.

Bootstrapped and tested with mips64octeon-linux.

OK?

Adam


	* config/mips/mips.md (*extzv_trunc<mode>_exts): Turn the template
	into a regular pattern and rename it ...
	(*extzv_truncsi_exts): ... to this.

Index: mips.md
===================================================================
--- mips.md	(revision 147538)
+++ mips.md	(working copy)
@@ -3462,16 +3497,16 @@ (define_insn "extzv<mode>"
   [(set_attr "type"	"arith")
    (set_attr "mode"	"<MODE>")])
 
-(define_insn "*extzv_trunc<mode>_exts"
-  [(set (match_operand:GPR 0 "register_operand" "=d")
-        (truncate:GPR
+(define_insn "*extzv_truncsi_exts"
+  [(set (match_operand:SI 0 "register_operand" "=d")
+        (truncate:SI
 	 (zero_extract:DI (match_operand:DI 1 "register_operand" "d")
 			  (match_operand 2 "const_int_operand" "")
 			  (match_operand 3 "const_int_operand" ""))))]
   "ISA_HAS_EXTS && TARGET_64BIT && IN_RANGE (INTVAL (operands[2]), 32, 63)"
   "exts\t%0,%1,%3,31"
   [(set_attr "type"     "arith")
-   (set_attr "mode"     "<MODE>")])
+   (set_attr "mode"     "SI")])
 
 
 (define_expand "insv"