>From >https://developer.apple.com/documentation/xcode/writing-arm64-code-for-apple-platforms
When passing an argument with 16-byte alignment in integer registers, Apple platforms allow the argument to start in an odd-numbered xN register. The standard ABI requires it to begin in an even-numbered xN register. Cc: [email protected] Fixes: 5427a9a7604 ("tcg: Add TCG_TARGET_CALL_{RET,ARG}_I128") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2169 Signed-off-by: Richard Henderson <[email protected]> Message-Id: <[email protected]> Reviewed-by: Philippe Mathieu-Daudé <[email protected]> --- tcg/aarch64/tcg-target.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tcg/aarch64/tcg-target.h b/tcg/aarch64/tcg-target.h index ef5ebe91bd..85d5746e47 100644 --- a/tcg/aarch64/tcg-target.h +++ b/tcg/aarch64/tcg-target.h @@ -55,7 +55,11 @@ typedef enum { #define TCG_TARGET_CALL_STACK_OFFSET 0 #define TCG_TARGET_CALL_ARG_I32 TCG_CALL_ARG_NORMAL #define TCG_TARGET_CALL_ARG_I64 TCG_CALL_ARG_NORMAL -#define TCG_TARGET_CALL_ARG_I128 TCG_CALL_ARG_EVEN +#ifdef CONFIG_DARWIN +# define TCG_TARGET_CALL_ARG_I128 TCG_CALL_ARG_NORMAL +#else +# define TCG_TARGET_CALL_ARG_I128 TCG_CALL_ARG_EVEN +#endif #define TCG_TARGET_CALL_RET_I128 TCG_CALL_RET_NORMAL #define have_lse (cpuinfo & CPUINFO_LSE) -- 2.34.1
