[gcc r14-6] RISC-V: Set the ABI for the RVV tests

[gcc r14-6] RISC-V: Set the ABI for the RVV tests

[Palmer Dabbelt]

https://gcc.gnu.org/g:e6b050da8a4513ab37fd3699c7a963421fbe4d81

commit r14-6-ge6b050da8a4513ab37fd3699c7a963421fbe4d81
Author: Palmer Dabbelt <palmer@rivosinc.com>
Date:   Tue Apr 11 15:18:20 2023 -0700

    RISC-V: Set the ABI for the RVV tests
    
    The RVV test harness currently sets the ISA according to the target
    tuple, but doesn't also set the ABI.  This just sets the ABI to match
    the ISA, though we should really also be respecting the user's specific
    ISA to test.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/riscv/rvv/rvv.exp (gcc_mabi): New variable.

Diff:
---
 gcc/testsuite/gcc.target/riscv/rvv/rvv.exp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/testsuite/gcc.target/riscv/rvv/rvv.exp b/gcc/testsuite/gcc.target/riscv/rvv/rvv.exp
index 7a9a2b6ac48..4b5509db385 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/rvv.exp
+++ b/gcc/testsuite/gcc.target/riscv/rvv/rvv.exp
@@ -31,15 +31,17 @@ if ![info exists DEFAULT_CFLAGS] then {
 }
 
 set gcc_march "rv64gcv_zfh"
+set gcc_mabi  "lp64d"
 if [istarget riscv32-*-*] then {
   set gcc_march "rv32gcv_zfh"
+  set gcc_mabi  "ilp32d"
 }
 
 # Initialize `dg'.
 dg-init
 
 # Main loop.
-set CFLAGS "$DEFAULT_CFLAGS -march=$gcc_march -O3"
+set CFLAGS "$DEFAULT_CFLAGS -march=$gcc_march -mabi=$gcc_mabi -O3"
 dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/base/*.\[cS\]]] \
 	"" $CFLAGS
 gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/vsetvl/*.\[cS\]]] \