riscv: selftests: Fix vsetivli args for clang

Clang does not support implicit LMUL in the vset* instruction sequences.
Introduce an explicit LMUL in the vsetivli instruction.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Fixes: 9d5328eeb185 ("riscv: selftests: Add signal handling vector tests")
Link: https://lore.kernel.org/r/20240702-fix_sigreturn_test-v1-1-485f88a80612@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

diff --git a/tools/testing/selftests/riscv/sigreturn/sigreturn.c b/tools/testing/selftests/riscv/sigreturn/sigreturn.c
index 62397d5934f13d6fe8216acac686747c9c55c44e..ed351a1cb917da1d47705787702f5cf52ef8bcc1 100644 (file)
--- a/tools/testing/selftests/riscv/sigreturn/sigreturn.c
+++ b/tools/testing/selftests/riscv/sigreturn/sigreturn.c
@@ -51,7 +51,7 @@ static int vector_sigreturn(int data, void (*handler)(int, siginfo_t *, void *))
 
        asm(".option push                               \n\
                .option         arch, +v                \n\
-               vsetivli        x0, 1, e32, ta, ma      \n\
+               vsetivli        x0, 1, e32, m1, ta, ma  \n\
                vmv.s.x         v0, %1                  \n\
                # Generate SIGSEGV                      \n\
                lw              a0, 0(x0)               \n\