expr.c (expand_expr_real_2): Don't widen constant op1 when expanding widening multiplication.

2019-10-21 Jozef Lawrynowicz <jozef.l@mittosystems.com> * expr.c (expand_expr_real_2): Don't widen constant op1 when expanding widening multiplication. From-SVN: r277271

expr.c (expand_expr_real_2): Don't widen constant op1 when expanding widening multiplication.
2019-10-21 Jozef Lawrynowicz <jozef.l@mittosystems.com> * expr.c (expand_expr_real_2): Don't widen constant op1 when expanding widening multiplication. From-SVN: r277271
c01d9cfe · Jozef Lawrynowicz · Jozef Lawrynowicz · debf1662 · c01d9cfe · c01d9cfe
Commit c01d9cfe authored Oct 21, 2019 by Jozef Lawrynowicz Committed by Jozef Lawrynowicz Oct 21, 2019
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gcc/expr.c
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+2019-10-21  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
+
+	* expr.c (expand_expr_real_2): Don't widen constant op1 when expanding
+	widening multiplication.
+
 2019-10-21  Richard Earnshaw  <rearnsha@arm.com>

 	* config/arm/iterators.md (t2_binop0): Fix typo in comment.
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -8954,9 +8954,6 @@ expand_expr_real_2 (sepops ops, rtx target, machine_mode tmode,
 		     != INTEGER_CST check.  Handle it.  */
 		  if (GET_MODE (op0) == VOIDmode && GET_MODE (op1) == VOIDmode)
 		    goto widen_mult_const;
-		  if (TREE_CODE (treeop1) == INTEGER_CST)
-		    op1 = convert_modes (mode, word_mode, op1,
-					 TYPE_UNSIGNED (TREE_TYPE (treeop1)));
 		  temp = expand_binop (mode, other_optab, op0, op1, target,
 				       unsignedp, OPTAB_LIB_WIDEN);
 		  hipart = gen_highpart (word_mode, temp);