[gcc r14-1439] RISC-V: Remove FRM for vfwcvt.f.x<u>.v (RVV integer to float widening conversion)

[Pan Li]

https://gcc.gnu.org/g:b65458005dfb38f2efdca52e42f3dbf4760f91bd

commit r14-1439-gb65458005dfb38f2efdca52e42f3dbf4760f91bd
Author: Juzhe-Zhong <juzhe.zhong@rivai.ai>
Date:   Wed May 31 18:43:44 2023 +0800

    RISC-V: Remove FRM for vfwcvt.f.x<u>.v (RVV integer to float widening conversion)
    
    Base on the discussion here:
    https://github.com/riscv/riscv-v-spec/issues/884
    
    vfwcvt.f.x<u>.v doesn't depend on FRM. So remove FRM preparing for mode switching support.
    
    gcc/ChangeLog:
    
            * config/riscv/vector.md: Remove FRM.
    
    Signed-off-by: Pan Li <pan2.li@intel.com>

Diff:
---
 gcc/config/riscv/vector.md | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/gcc/config/riscv/vector.md b/gcc/config/riscv/vector.md
index 60f052bcec9..cb4e77e7854 100644
--- a/gcc/config/riscv/vector.md
+++ b/gcc/config/riscv/vector.md
@@ -7159,10 +7159,8 @@
 	     (match_operand 5 "const_int_operand"            "    i,    i")
 	     (match_operand 6 "const_int_operand"            "    i,    i")
 	     (match_operand 7 "const_int_operand"            "    i,    i")
-	     (match_operand 8 "const_int_operand"            "    i,    i")
 	     (reg:SI VL_REGNUM)
-	     (reg:SI VTYPE_REGNUM)
-	     (reg:SI FRM_REGNUM)] UNSPEC_VPREDICATE)
+	     (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)
 	  (any_float:VF
 	     (match_operand:<VNCONVERT> 3 "register_operand" "   vr,   vr"))
 	  (match_operand:VF 2 "vector_merge_operand"         "   vu,    0")))]