gcc/
PR target/95737
* config/rs6000/rs6000.md (*subfsi3_carry_in_xx_64): New.
gcc/testsuite/
PR target/95737
* gcc.target/powerpc/pr95737.c: New.
"subfe %0,%0,%0"
[(set_attr "type" "add")])
+(define_insn_and_split "*subfsi3_carry_in_xx_64"
+ [(set (match_operand:DI 0 "gpc_reg_operand" "=r")
+ (sign_extend:DI (plus:SI (reg:SI CA_REGNO)
+ (const_int -1))))]
+ "TARGET_POWERPC64"
+ "#"
+ "&&1"
+ [(parallel [(set (match_dup 0)
+ (plus:DI (reg:DI CA_REGNO)
+ (const_int -1)))
+ (clobber (reg:DI CA_REGNO))])]
+ ""
+)
(define_insn "@neg<mode>2"
[(set (match_operand:GPR 0 "gpc_reg_operand" "=r")
--- /dev/null
+/* PR target/95737 */
+/* { dg-do compile } */
+/* Disable isel for P9 and later. */
+/* { dg-options "-O2 -mno-isel" } */
+/* { dg-final { scan-assembler-not {\mextsw\M} } } */
+
+
+unsigned long negativeLessThan (unsigned long a, unsigned long b)
+{
+ return -(a < b);
+}