combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate instead of gen_lowpart.

	* combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
	instead of gen_lowpart.

From-SVN: r111911

gcc/ChangeLog

+2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
+
+	* combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
+	instead of gen_lowpart.
+
 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
 
 	* config/mips/mips-protos.h (mips_output_conditional_branch): Change

gcc/combine.c

@@ -9199,7 +9199,7 @@ simplify_shift_const_1 (enum rtx_code code, enum machine_mode result_mode,
 				GET_MODE_MASK (result_mode) >> orig_count);
 
   /* Do the remainder of the processing in RESULT_MODE.  */
-  x = gen_lowpart (result_mode, x);
+  x = gen_lowpart_or_truncate (result_mode, x);
 
   /* If COMPLEMENT_P is set, we have to complement X before doing the outer
      operation.  */