From 18ff36ab71bdb302028adc263e0505f09b573f73 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sun, 16 Oct 2022 13:47:00 +1100 Subject: [PATCH] tcg: Introduce TCGCallReturnKind and TCGCallArgumentKind MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Prepare to replace a bunch of separate ifdefs with a consistent way to describe the ABI of a function call. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- tcg/tcg-internal.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tcg/tcg-internal.h b/tcg/tcg-internal.h index 2c06b5116a..f574743ff8 100644 --- a/tcg/tcg-internal.h +++ b/tcg/tcg-internal.h @@ -27,6 +27,21 @@ #define TCG_HIGHWATER 1024 +/* + * Describe the calling convention of a given argument type. + */ +typedef enum { + TCG_CALL_RET_NORMAL, /* by registers */ +} TCGCallReturnKind; + +typedef enum { + TCG_CALL_ARG_NORMAL, /* by registers (continuing onto stack) */ + TCG_CALL_ARG_EVEN, /* like normal, but skipping odd slots */ + TCG_CALL_ARG_EXTEND, /* for i32, as a sign/zero-extended i64 */ + TCG_CALL_ARG_EXTEND_U, /* ... as a zero-extended i64 */ + TCG_CALL_ARG_EXTEND_S, /* ... as a sign-extended i64 */ +} TCGCallArgumentKind; + typedef struct TCGHelperInfo { void *func; const char *name;