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tcg: Define TCG_TYPE_I128 and related helper macros

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Begin staging in support for TCGv_i128 with Int128.
Define the type enumerator, the typedef, and the
helper-head.h macros.

This cannot yet be used, because you can't allocate
temporaries of this new type.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-11-11 10:49:52 +10:00
parent e1e6465244
commit ecbea3ec1c
2 changed files with 17 additions and 7 deletions
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17
include/tcg/tcg.h
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@ -270,6 +270,7 @@ typedef struct TCGPool {
typedef enum TCGType {
TCG_TYPE_I32,
TCG_TYPE_I64,
TCG_TYPE_I128,
TCG_TYPE_V64,
TCG_TYPE_V128,
@ -351,13 +352,14 @@ typedef tcg_target_ulong TCGArg;
in tcg/README. Target CPU front-end code uses these types to deal
with TCG variables as it emits TCG code via the tcg_gen_* functions.
They come in several flavours:
* TCGv_i32 : 32 bit integer type
* TCGv_i64 : 64 bit integer type
* TCGv_ptr : a host pointer type
* TCGv_vec : a host vector type; the exact size is not exposed
to the CPU front-end code.
* TCGv : an integer type the same size as target_ulong
(an alias for either TCGv_i32 or TCGv_i64)
* TCGv_i32 : 32 bit integer type
* TCGv_i64 : 64 bit integer type
* TCGv_i128 : 128 bit integer type
* TCGv_ptr : a host pointer type
* TCGv_vec : a host vector type; the exact size is not exposed
to the CPU front-end code.
* TCGv : an integer type the same size as target_ulong
(an alias for either TCGv_i32 or TCGv_i64)
The compiler's type checking will complain if you mix them
up and pass the wrong sized TCGv to a function.
@ -377,6 +379,7 @@ typedef tcg_target_ulong TCGArg;
typedef struct TCGv_i32_d *TCGv_i32;
typedef struct TCGv_i64_d *TCGv_i64;
typedef struct TCGv_i128_d *TCGv_i128;
typedef struct TCGv_ptr_d *TCGv_ptr;
typedef struct TCGv_vec_d *TCGv_vec;
typedef TCGv_ptr TCGv_env;