From: Pan Li <[email protected]>
The recent change introduce another form of vfmin/max, which is
more "literal" compare the previous one. The related vx_vf/vf*
test cases also failed due to this change. Thus, add the pattern
to make the test case happy.
The below test suites are passed for this patch series.
* The rv64gcv fully regression test.
* Fix the vx_vf/vf* testcases.
gcc/ChangeLog:
* config/riscv/autovec-opt.md (*literal_v<ieee_fmaxmin_op>_vf_<mode>):
Add new pattern for vfmax/min combine to fx.
Signed-off-by: Pan Li <[email protected]>
---
gcc/config/riscv/autovec-opt.md | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/gcc/config/riscv/autovec-opt.md b/gcc/config/riscv/autovec-opt.md
index 35476c8c446..c86fb16586d 100644
--- a/gcc/config/riscv/autovec-opt.md
+++ b/gcc/config/riscv/autovec-opt.md
@@ -2244,6 +2244,34 @@ (define_insn_and_split "*vf<optab>_vf_<mode>"
[(set_attr "type" "vfminmax")]
)
+(define_insn_and_split "*literal_v<ieee_fmaxmin_op>_vf_<mode>"
+ [(set (match_operand:V_VLSF 0 "register_operand")
+ (if_then_else:V_VLSF
+ (unspec:<VM>
+ [(match_operand:<VM> 1 "vector_mask_operand")
+ (match_operand 5 "vector_length_operand")
+ (match_operand 6 "const_int_operand")
+ (match_operand 7 "const_int_operand")
+ (match_operand 8 "const_int_operand")
+ (reg:SI VL_REGNUM)
+ (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)
+ (unspec:V_VLSF
+ [(vec_duplicate:V_VLSF
+ (match_operand:<VEL> 3 "register_operand"))
+ (match_operand:V_VLSF 4 "register_operand")] UNSPEC_VFMAXMIN)
+ (unspec:V_VLSF
+ [(match_operand:DI 2 "register_operand")] UNSPEC_VUNDEF)))]
+ "TARGET_VECTOR && can_create_pseudo_p ()"
+ "#"
+ "&& 1"
+ [(const_int 0)]
+ {
+ rtx ops[] = {operands[0], operands[4], operands[3]};
+ insn_code icode = code_for_pred_scalar (<IEEE_FMAXMIN_OP>, <MODE>mode);
+ riscv_vector::emit_vlmax_insn (icode, riscv_vector::BINARY_OP, ops);
+ }
+ [(set_attr "type" "vfminmax")])
+
(define_insn_and_split "*v<ieee_fmaxmin_op>_vf_<mode>"
[(set (match_operand:V_VLSF 0 "register_operand")
(unspec:V_VLSF [
--
2.43.0
