re PR target/89434 (wrong code with -Og and __builtin_mul_overflow())

	PR target/89434
	* config/arm/arm.md (*subsi3_carryin_compare_const): Use
	trunc_int_for_mode (-INTVAL (...), SImode), just instead of
	-UINTVAL (...).

From-SVN: r269277

gcc/ChangeLog

+2019-02-28  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/89434
+	* config/arm/arm.md (*subsi3_carryin_compare_const): Use
+	trunc_int_for_mode (-INTVAL (...), SImode), just instead of
+	-UINTVAL (...).
+
 2019-02-28  Tamar Christina  <tamar.christina@arm.com>
 
 	PR target/88530

gcc/config/arm/arm.md

@@ -1185,7 +1185,9 @@
         (minus:SI (plus:SI (match_dup 1)
                            (match_operand:SI 3 "arm_neg_immediate_operand" "L"))
                   (ltu:SI (reg:CC_C CC_REGNUM) (const_int 0))))]
-  "TARGET_32BIT && UINTVAL (operands[2]) == -UINTVAL (operands[3])"
+  "TARGET_32BIT
+   && (INTVAL (operands[2])
+       == trunc_int_for_mode (-INTVAL (operands[3]), SImode))"
   "sbcs\\t%0, %1, #%n3"
   [(set_attr "conds" "set")
    (set_attr "type" "adcs_imm")]