i386.md (movdi_extzv_1): New.

gcc/
2005-07-18  Jan Beulich  <jbeulich@novell.com>

	* i386.md (movdi_extzv_1): New.
	(zero_extendhidi2): Combine alternatives and never force use of
	REX64 prefix.
	(zero_extendqidi2): Likewise. Don't restrict input selection.

From-SVN: r102128

gcc/ChangeLog

+2005-07-18  Jan Beulich  <jbeulich@novell.com>
+
+	* i386.md (movdi_extzv_1): New.
+	(zero_extendhidi2): Combine alternatives and never force use of
+	REX64 prefix.
+	(zero_extendqidi2): Likewise. Don't restrict input selection.
+
 2005-07-17  Daniel Berlin  <dberlin@dberlin.org>
 
 	Fix PR tree-optimization/22531

gcc/config/i386/i386.md

@@ -1685,6 +1685,16 @@
    (set_attr "memory" "load")
    (set_attr "mode" "QI")])
 
+(define_insn "*movdi_extzv_1"
+  [(set (match_operand:DI 0 "register_operand" "=R")
+	(zero_extract:DI (match_operand 1 "ext_register_operand" "Q")
+			 (const_int 8)
+			 (const_int 8)))]
+  "TARGET_64BIT"
+  "movz{bl|x}\t{%h1, %k0|%k0, %h1}"
+  [(set_attr "type" "imovx")
+   (set_attr "mode" "DI")])
+
 (define_insn "*movsi_extzv_1"
   [(set (match_operand:SI 0 "register_operand" "=R")
 	(zero_extract:SI (match_operand 1 "ext_register_operand" "Q")
@@ -3189,24 +3199,20 @@
   "split_di (&operands[0], 1, &operands[3], &operands[4]);")
 
 (define_insn "zero_extendhidi2"
-  [(set (match_operand:DI 0 "register_operand" "=r,r")
-     (zero_extend:DI (match_operand:HI 1 "nonimmediate_operand" "r,m")))]
+  [(set (match_operand:DI 0 "register_operand" "=r")
+     (zero_extend:DI (match_operand:HI 1 "nonimmediate_operand" "rm")))]
   "TARGET_64BIT"
-  "@
-   movz{wl|x}\t{%1, %k0|%k0, %1}
-   movz{wq|x}\t{%1, %0|%0, %1}"
+  "movz{wl|x}\t{%1, %k0|%k0, %1}"
   [(set_attr "type" "imovx")
-   (set_attr "mode" "SI,DI")])
+   (set_attr "mode" "DI")])
 
 (define_insn "zero_extendqidi2"
-  [(set (match_operand:DI 0 "register_operand" "=r,r")
-     (zero_extend:DI (match_operand:QI 1 "nonimmediate_operand" "Q,m")))]
+  [(set (match_operand:DI 0 "register_operand" "=r")
+     (zero_extend:DI (match_operand:QI 1 "nonimmediate_operand" "rm")))]
   "TARGET_64BIT"
-  "@
-   movz{bl|x}\t{%1, %k0|%k0, %1}
-   movz{bq|x}\t{%1, %0|%0, %1}"
+  "movz{bl|x}\t{%1, %k0|%k0, %1}"
   [(set_attr "type" "imovx")
-   (set_attr "mode" "SI,DI")])
+   (set_attr "mode" "DI")])
 
 ;; Sign extension instructions