[PATCH] PR60822 (m68k, missing earlyclobber in extendplussidi)

[Segher Boessenkool]

operand[0] has a subreg taken (as operand[3]), which is modified
before operand[1] is used.

Built succesfully but I'm not set up to run the testsuite, sorry.
It fixes the testcase of course.


gcc/ChangeLog:

2014-04-16  Segher Boessenkool  <segher@kernel.crashing.org>

	* config/m68k/m68k.md (extendplussidi): Add earlyclobber.

---
 gcc/config/m68k/m68k.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/m68k/m68k.md b/gcc/config/m68k/m68k.md
index e61048b..9e7f3e2 100644
--- a/gcc/config/m68k/m68k.md
+++ b/gcc/config/m68k/m68k.md
@@ -1869,7 +1869,7 @@ (define_insn "extendsidi2"
 ;; result of the SI tree to be in the lower register of the DI target
 
 (define_insn "extendplussidi"
-  [(set (match_operand:DI 0 "register_operand" "=d")
+  [(set (match_operand:DI 0 "register_operand" "=&d")
     (sign_extend:DI (plus:SI (match_operand:SI 1 "general_operand" "%rmn")
             (match_operand:SI 2 "general_operand" "rmn"))))]
   ""
-- 
1.8.1.4