combine.c (gen_lowpart_or_truncate): Call simplify_gen_unary(TRUNCATE, ...)…

combine.c (gen_lowpart_or_truncate): Call simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.

	* combine.c (gen_lowpart_or_truncate): Call
	simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.

From-SVN: r111437

gcc/ChangeLog

+2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
+
+	* combine.c (gen_lowpart_or_truncate): Call
+	simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
+
 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
 
 	* doc/invoke.texi: Move -fopenmp description to "Options for

gcc/combine.c

@@ -6777,7 +6777,7 @@ gen_lowpart_or_truncate (enum machine_mode mode, rtx x)
       || (REG_P (x) && reg_truncated_to_mode (mode, x)))
     return gen_lowpart (mode, x);
   else
-    return gen_rtx_TRUNCATE (mode, x);
+    return simplify_gen_unary (TRUNCATE, mode, x, GET_MODE (x));
 }
 
 /* See if X can be simplified knowing that we will only refer to it in