On 10/21/22 20:47, Philippe Mathieu-Daudé wrote:
On 21/10/22 09:15, Richard Henderson wrote:
Fill in the parameters for libffi for Int128.
Adjust the interpreter to allow for 16-byte return values.
Adjust tcg_out_call to record the return value length.
Call parameters are no longer all the same size, so we
cannot reuse the same call_slots array for every function.
Compute it each time now, but only fill in slots required
for the call we're about to make.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
tcg/tci/tcg-target.h | 3 +++
tcg/tcg.c | 18 ++++++++++++++++
tcg/tci.c | 45 ++++++++++++++++++++--------------------
tcg/tci/tcg-target.c.inc | 8 +++----
4 files changed, 48 insertions(+), 26 deletions(-)
static ffi_type *typecode_to_ffi(int argmask)
{
+ /*
+ * libffi does not support __int128_t, so we have forced Int128
+ * to use the structure definition instead of the builtin type.
+ */
+ static ffi_type *ffi_type_i128_elements[3] = {
static const.
+ &ffi_type_uint64,
+ &ffi_type_uint64,
+ NULL
+ };
+ static ffi_type ffi_type_i128 = {
static const.
Can't, because of the libffi interface. Indeed this second structure will be modified by
the library to complete the library-specific initialization.
r~
