re PR target/37466 ([AVR] avr-gcc generating incorrect assembly for expression with...

	PR target/37466
	* config/avr/avr.md (movsi_lreg_const peephole2): Add match_dup for
	scratch register after 'set' pattern.

From-SVN: r140321

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f499e2fe04ab62c77fb0672bb3c05c5d0457da91..0528f17e532326e2fa710495f23d92ddc57e257f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-09-12  Anatoly Sokolov  <aesok@post.ru>
+
+       PR target/37466
+       * config/avr/avr.md (movsi_lreg_const peephole2): Add match_dup for
+       scratch register after 'set' pattern.
+
 2008-09-12  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 
        * emit-rtl.c (set_reg_attrs_from_value): Fix invalid alignment

diff --git a/gcc/config/avr/avr.md b/gcc/config/avr/avr.md
index 8dad9d8fe80710f0b7142e2757ccd73fbfab98e5..7a46a3305c4d220bbdc812b5abb32f4ffbe316b7 100644 (file)
--- a/gcc/config/avr/avr.md
+++ b/gcc/config/avr/avr.md
@@ -391,10 +391,11 @@
 
 
 
-(define_peephole2
+(define_peephole2 ; movsi_lreg_const
   [(match_scratch:QI 2 "d")
    (set (match_operand:SI 0 "l_register_operand" "")
-        (match_operand:SI 1 "immediate_operand" ""))]
+        (match_operand:SI 1 "immediate_operand" ""))
+   (match_dup 2)]
   "(operands[1] != const0_rtx
     && operands[1] != constm1_rtx)"
   [(parallel [(set (match_dup 0) (match_dup 1))