runtime/vm/compiler/ffi/unit_tests/mixedx20/riscv32_linux.expect

a0 int32
fa0 float
a1 int32
fa1 double
a2 int32
fa2 float
t3 int32
fa3 double
t4 int32
fa4 float
t5 int32
fa5 double
a6 int32
fa6 float
a7 int32
fa7 double
S+0 int32
S+4 float
S+8 int32
S+16 double
=>
fa0 double