https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93533
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2020-02-01
CC| |krebbel at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
Target Milestone|--- |10.0
Ever confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md
index 2959d8c0f17..e37ba49444a 100644
--- a/gcc/config/s390/s390.md
+++ b/gcc/config/s390/s390.md
@@ -11670,21 +11670,28 @@ (define_expand "popcountsi2"
})
(define_expand "popcounthi2_z196"
- [; popcnt op0, op1
- (parallel [(set (match_operand:HI 0 "register_operand" "")
+ [; popcnt op2, op1
+ (parallel [(set (match_dup 2)
(unspec:HI [(match_operand:HI 1 "register_operand")]
UNSPEC_POPCNT))
(clobber (reg:CC CC_REGNUM))])
- ; sllk op2, op0, 8
- (set (match_dup 2)
- (ashift:SI (match_dup 0) (const_int 8)))
- ; ar op0, op2
- (parallel [(set (match_dup 0) (plus:SI (match_dup 0) (match_dup 2)))
+ ; lr op3, op2
+ (set (match_dup 3) (subreg:SI (match_dup 2) 0))
+ ; srl op4, op3, 8
+ (set (match_dup 4) (lshiftrt:SI (match_dup 3) (const_int 8)))
+ ; ar op3, op4
+ (parallel [(set (match_dup 3) (plus:SI (match_dup 3) (match_dup 4)))
(clobber (reg:CC CC_REGNUM))])
- ; srl op0, op0, 8
- (set (match_dup 0) (lshiftrt:HI (match_dup 0) (const_int 8)))]
+ ; llgc op0, op3
+ (parallel [(set (match_operand:HI 0 "register_operand" "")
+ (and:HI (subreg:HI (match_dup 3) 2) (const_int 255)))
+ (clobber (reg:CC CC_REGNUM))])]
"TARGET_Z196"
- "operands[2] = gen_reg_rtx (SImode);")
+{
+ operands[2] = gen_reg_rtx (HImode);
+ operands[3] = gen_reg_rtx (SImode);
+ operands[4] = gen_reg_rtx (SImode);
+})
(define_expand "popcounthi2"
[(set (match_dup 2)
seems to work for me.
