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tcg: Remove GET_TCGV_* and MAKE_TCGV_*

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The GET and MAKE functions weren't really specific enough.
We now have a full complement of functions that convert exactly
between temporaries, arguments, tcgv pointers, and indices.

The target/sparc change is also a bug fix, which would have affected
a host that defines TCG_TARGET_HAS_extr[lh]_i64_i32, i.e. MIPS64.

Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2017-10-20 00:30:24 -07:00
parent 085272b35e
commit dc41aa7d34
5 changed files with 34 additions and 69 deletions
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4
include/exec/helper-head.h
View File

@ -20,10 +20,6 @@
#define HELPER(name) glue(helper_, name)
#define GET_TCGV_i32 GET_TCGV_I32
#define GET_TCGV_i64 GET_TCGV_I64
#define GET_TCGV_ptr GET_TCGV_PTR
/* Some types that make sense in C, but not for TCG. */
#define dh_alias_i32 i32
#define dh_alias_s32 i32

15
target/sparc/translate.c
View File

@ -171,18 +171,13 @@ static TCGv_i32 gen_load_fpr_F(DisasContext *dc, unsigned int src)
return TCGV_HIGH(cpu_fpr[src / 2]);
}
#else
TCGv_i32 ret = get_temp_i32(dc);
if (src & 1) {
return MAKE_TCGV_I32(GET_TCGV_I64(cpu_fpr[src / 2]));
tcg_gen_extrl_i64_i32(ret, cpu_fpr[src / 2]);
} else {
TCGv_i32 ret = get_temp_i32(dc);
TCGv_i64 t = tcg_temp_new_i64();
tcg_gen_shri_i64(t, cpu_fpr[src / 2], 32);
tcg_gen_extrl_i64_i32(ret, t);
tcg_temp_free_i64(t);
return ret;
tcg_gen_extrh_i64_i32(ret, cpu_fpr[src / 2]);
}
return ret;
#endif
}
@ -195,7 +190,7 @@ static void gen_store_fpr_F(DisasContext *dc, unsigned int dst, TCGv_i32 v)
tcg_gen_mov_i32(TCGV_HIGH(cpu_fpr[dst / 2]), v);
}
#else
TCGv_i64 t = MAKE_TCGV_I64(GET_TCGV_I32(v));
TCGv_i64 t = (TCGv_i64)v;
tcg_gen_deposit_i64(cpu_fpr[dst / 2], cpu_fpr[dst / 2], t,
(dst & 1 ? 0 : 32), 32);
#endif

4
tcg/tcg-op.c
View File

@ -2460,7 +2460,7 @@ void tcg_gen_extrl_i64_i32(TCGv_i32 ret, TCGv_i64 arg)
tcg_gen_op2(INDEX_op_extrl_i64_i32,
tcgv_i32_arg(ret), tcgv_i64_arg(arg));
} else {
tcg_gen_mov_i32(ret, MAKE_TCGV_I32(GET_TCGV_I64(arg)));
tcg_gen_mov_i32(ret, (TCGv_i32)arg);
}
}
@ -2474,7 +2474,7 @@ void tcg_gen_extrh_i64_i32(TCGv_i32 ret, TCGv_i64 arg)
} else {
TCGv_i64 t = tcg_temp_new_i64();
tcg_gen_shri_i64(t, arg, 32);
tcg_gen_mov_i32(ret, MAKE_TCGV_I32(GET_TCGV_I64(t)));
tcg_gen_mov_i32(ret, (TCGv_i32)t);
tcg_temp_free_i64(t);
}
}

2
tcg/tcg.c
View File

@ -548,7 +548,7 @@ TCGTemp *tcg_global_mem_new_internal(TCGType type, TCGv_ptr base,
intptr_t offset, const char *name)
{
TCGContext *s = &tcg_ctx;
TCGTemp *base_ts = &s->temps[GET_TCGV_PTR(base)];
TCGTemp *base_ts = tcgv_ptr_temp(base);
TCGTemp *ts = tcg_global_alloc(s);
int indirect_reg = 0, bigendian = 0;
#ifdef HOST_WORDS_BIGENDIAN

78
tcg/tcg.h
View File

@ -414,10 +414,7 @@ typedef tcg_target_ulong TCGArg;
integers, but keeping them in pointer types like this means that the
compiler will complain if you accidentally pass a TCGv_i32 to a
function which takes a TCGv_i64, and so on. Only the internals of
TCG need to care about the actual contents of the types, and they always
box and unbox via the MAKE_TCGV_* and GET_TCGV_* functions.
Converting to and from intptr_t rather than int reduces the number
of sign-extension instructions that get implied on 64-bit hosts. */
TCG need to care about the actual contents of the types. */
typedef struct TCGv_i32_d *TCGv_i32;
typedef struct TCGv_i64_d *TCGv_i64;
@ -431,53 +428,18 @@ typedef TCGv_ptr TCGv_env;
#error Unhandled TARGET_LONG_BITS value
#endif
static inline TCGv_i32 QEMU_ARTIFICIAL MAKE_TCGV_I32(intptr_t i)
{
return (TCGv_i32)i;
}
static inline TCGv_i64 QEMU_ARTIFICIAL MAKE_TCGV_I64(intptr_t i)
{
return (TCGv_i64)i;
}
static inline TCGv_ptr QEMU_ARTIFICIAL MAKE_TCGV_PTR(intptr_t i)
{
return (TCGv_ptr)i;
}
static inline intptr_t QEMU_ARTIFICIAL GET_TCGV_I32(TCGv_i32 t)
{
return (intptr_t)t;
}
static inline intptr_t QEMU_ARTIFICIAL GET_TCGV_I64(TCGv_i64 t)
{
return (intptr_t)t;
}
static inline intptr_t QEMU_ARTIFICIAL GET_TCGV_PTR(TCGv_ptr t)
{
return (intptr_t)t;
}
#if TCG_TARGET_REG_BITS == 32
#define TCGV_LOW(t) MAKE_TCGV_I32(GET_TCGV_I64(t))
#define TCGV_HIGH(t) MAKE_TCGV_I32(GET_TCGV_I64(t) + 1)
#endif
#define TCGV_EQUAL_I32(a, b) (GET_TCGV_I32(a) == GET_TCGV_I32(b))
#define TCGV_EQUAL_I64(a, b) (GET_TCGV_I64(a) == GET_TCGV_I64(b))
#define TCGV_EQUAL_PTR(a, b) (GET_TCGV_PTR(a) == GET_TCGV_PTR(b))
#define TCGV_EQUAL_I32(a, b) ((a) == (b))
#define TCGV_EQUAL_I64(a, b) ((a) == (b))
#define TCGV_EQUAL_PTR(a, b) ((a) == (b))
/* Dummy definition to avoid compiler warnings. */
#define TCGV_UNUSED_I32(x) x = MAKE_TCGV_I32(-1)
#define TCGV_UNUSED_I64(x) x = MAKE_TCGV_I64(-1)
#define TCGV_UNUSED_PTR(x) x = MAKE_TCGV_PTR(-1)
#define TCGV_UNUSED_I32(x) (x = (TCGv_i32)-1)
#define TCGV_UNUSED_I64(x) (x = (TCGv_i64)-1)
#define TCGV_UNUSED_PTR(x) (x = (TCGv_ptr)-1)
#define TCGV_IS_UNUSED_I32(x) (GET_TCGV_I32(x) == -1)
#define TCGV_IS_UNUSED_I64(x) (GET_TCGV_I64(x) == -1)
#define TCGV_IS_UNUSED_PTR(x) (GET_TCGV_PTR(x) == -1)
#define TCGV_IS_UNUSED_I32(x) ((x) == (TCGv_i32)-1)
#define TCGV_IS_UNUSED_I64(x) ((x) == (TCGv_i64)-1)
#define TCGV_IS_UNUSED_PTR(x) ((x) == (TCGv_ptr)-1)
/* call flags */
/* Helper does not read globals (either directly or through an exception). It
@ -801,6 +763,18 @@ static inline TCGv_ptr temp_tcgv_ptr(TCGTemp *t)
return (TCGv_ptr)temp_idx(t);
}
#if TCG_TARGET_REG_BITS == 32
static inline TCGv_i32 TCGV_LOW(TCGv_i64 t)
{
return temp_tcgv_i32(tcgv_i64_temp(t));
}
static inline TCGv_i32 TCGV_HIGH(TCGv_i64 t)
{
return temp_tcgv_i32(tcgv_i64_temp(t) + 1);
}
#endif
static inline void tcg_set_insn_param(int op_idx, int arg, TCGArg v)
{
tcg_ctx.gen_op_buf[op_idx].args[arg] = v;
@ -972,8 +946,8 @@ do {\
} while (0)
#if UINTPTR_MAX == UINT32_MAX
#define TCGV_NAT_TO_PTR(n) MAKE_TCGV_PTR(GET_TCGV_I32(n))
#define TCGV_PTR_TO_NAT(n) MAKE_TCGV_I32(GET_TCGV_PTR(n))
static inline TCGv_ptr TCGV_NAT_TO_PTR(TCGv_i32 n) { return (TCGv_ptr)n; }
static inline TCGv_i32 TCGV_PTR_TO_NAT(TCGv_ptr n) { return (TCGv_i32)n; }
#define tcg_const_ptr(V) TCGV_NAT_TO_PTR(tcg_const_i32((intptr_t)(V)))
#define tcg_global_reg_new_ptr(R, N) \
@ -983,8 +957,8 @@ do {\
#define tcg_temp_new_ptr() TCGV_NAT_TO_PTR(tcg_temp_new_i32())
#define tcg_temp_free_ptr(T) tcg_temp_free_i32(TCGV_PTR_TO_NAT(T))
#else
#define TCGV_NAT_TO_PTR(n) MAKE_TCGV_PTR(GET_TCGV_I64(n))
#define TCGV_PTR_TO_NAT(n) MAKE_TCGV_I64(GET_TCGV_PTR(n))
static inline TCGv_ptr TCGV_NAT_TO_PTR(TCGv_i64 n) { return (TCGv_ptr)n; }
static inline TCGv_i64 TCGV_PTR_TO_NAT(TCGv_ptr n) { return (TCGv_i64)n; }
#define tcg_const_ptr(V) TCGV_NAT_TO_PTR(tcg_const_i64((intptr_t)(V)))
#define tcg_global_reg_new_ptr(R, N) \