[gcc r14-6657] RISC-V: Enable vect test for RV32

[Pan Li]

https://gcc.gnu.org/g:8c5d1d13882a0e58c308b95b1b51484721eafded

commit r14-6657-g8c5d1d13882a0e58c308b95b1b51484721eafded
Author: Juzhe-Zhong <juzhe.zhong@rivai.ai>
Date:   Mon Dec 18 17:49:08 2023 +0800

    RISC-V: Enable vect test for RV32
    
    gcc/testsuite/ChangeLog:
    
            * lib/target-supports.exp: Add RV32.

Diff:
---
 gcc/testsuite/lib/target-supports.exp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index bd38d72562d..370df10978d 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -11569,13 +11569,14 @@ proc check_vect_support_and_set_flags { } {
         }
     } elseif [istarget amdgcn-*-*] {
         set dg-do-what-default run
-    } elseif [istarget riscv64-*-*] {
+    } elseif [istarget riscv*-*-*] {
 	if [check_effective_target_riscv_v] {
 	    lappend DEFAULT_VECTCFLAGS "--param" "riscv-vector-abi"
 	    set dg-do-what-default run
 	} else {
-	    lappend DEFAULT_VECTCFLAGS "-march=rv64gcv_zvfh" "-mabi=lp64d"
-	    lappend DEFAULT_VECTCFLAGS "--param" "riscv-autovec-preference=scalable"
+	    foreach item [add_options_for_riscv_v ""] {
+		lappend DEFAULT_VECTCFLAGS $item
+	    }
 	    lappend DEFAULT_VECTCFLAGS "--param" "riscv-vector-abi"
 	    set dg-do-what-default compile
 	}