re PR rtl-optimization/60030 (ICE in simplify_subreg, at simplify-rtx.c:5903)

	PR rtl-optimization/60030
	* internal-fn.c (ubsan_expand_si_overflow_mul_check): Surround
	lopart with paradoxical subreg before shifting it up by hprec.

From-SVN: r207582

gcc/ChangeLog

+2014-02-06  Jakub Jelinek  <jakub@redhat.com>
+
+	PR rtl-optimization/60030
+	* internal-fn.c (ubsan_expand_si_overflow_mul_check): Surround
+	lopart with paradoxical subreg before shifting it up by hprec.
+
 2014-02-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* config/arm/aarch-cost-tables.h (cortexa57_extra_costs): New table.

gcc/internal-fn.c

@@ -646,7 +646,8 @@ ubsan_expand_si_overflow_mul_check (gimple stmt)
 	    emit_cmp_and_jump_insns (hipart, const0_rtx, GE, NULL_RTX, hmode,
 				     false, after_hipart_neg, PROB_EVEN);
 
-	  tem = expand_shift (LSHIFT_EXPR, mode, lopart, hprec, NULL_RTX, 1);
+	  tem = convert_modes (mode, hmode, lopart, 1);
+	  tem = expand_shift (LSHIFT_EXPR, mode, tem, hprec, NULL_RTX, 1);
 	  tem = expand_simple_binop (mode, MINUS, loxhi, tem, NULL_RTX,
 				     1, OPTAB_DIRECT);
 	  emit_move_insn (loxhi, tem);