* config/avr/avr.md (UNSPECV_WRITE_SP_IRQ_ON): New constants.

[pf3gnuchains/gcc-fork.git] / gcc / config / avr / avr.md

diff --git a/gcc/config/avr/avr.md b/gcc/config/avr/avr.md
index ffbbefa..a4914c4 100644 (file)
--- a/gcc/config/avr/avr.md
+++ b/gcc/config/avr/avr.md
@@ -56,7 +56,9 @@
    (UNSPEC_CLI         3)
 
    (UNSPECV_PROLOGUE_SAVES     0)
-   (UNSPECV_EPILOGUE_RESTORES  1)])
+   (UNSPECV_EPILOGUE_RESTORES  1)
+   (UNSPECV_WRITE_SP_IRQ_ON    2)
+   (UNSPECV_WRITE_SP_IRQ_OFF   3)])
 
 (include "predicates.md")
 (include "constraints.md")
@@ -230,6 +232,28 @@
   [(set_attr "length" "5,2")
    (set_attr "cc" "none,none")])
 
+(define_insn "movhi_sp_r_irq_off"
+  [(set (match_operand:HI 0 "stack_register_operand" "=q")
+        (unspec_volatile:HI [(match_operand:HI 1 "register_operand"  "r")] 
+                           UNSPECV_WRITE_SP_IRQ_OFF))]
+  ""
+  "out __SP_H__, %B1
+       out __SP_L__, %A1"
+  [(set_attr "length" "2")
+   (set_attr "cc" "none")])
+
+(define_insn "movhi_sp_r_irq_on"
+  [(set (match_operand:HI 0 "stack_register_operand" "=q")
+        (unspec_volatile:HI [(match_operand:HI 1 "register_operand"  "r")] 
+                           UNSPECV_WRITE_SP_IRQ_ON))]
+  ""
+  "cli
+        out __SP_H__, %B1
+       sei
+       out __SP_L__, %A1"
+  [(set_attr "length" "4")
+   (set_attr "cc" "none")])
+
 (define_peephole2
   [(match_scratch:QI 2 "d")
    (set (match_operand:HI 0 "l_register_operand" "")