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tcg: Add temp allocation for TCGv_i128 

This enables allocation of i128.  The type is not yet
usable, as we have not yet added data movement ops.

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 2022-10-20 08:03:41 +10:00
parent 5427a9a760
commit 43eef72f41
2 changed files with 74 additions and 18 deletions
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32
include/tcg/tcg.h
View File

@ -687,6 +687,11 @@ static inline TCGTemp *tcgv_i64_temp(TCGv_i64 v)
return tcgv_i32_temp((TCGv_i32)v);
}
static inline TCGTemp *tcgv_i128_temp(TCGv_i128 v)
{
return tcgv_i32_temp((TCGv_i32)v);
}
static inline TCGTemp *tcgv_ptr_temp(TCGv_ptr v)
{
return tcgv_i32_temp((TCGv_i32)v);
@ -707,6 +712,11 @@ static inline TCGArg tcgv_i64_arg(TCGv_i64 v)
return temp_arg(tcgv_i64_temp(v));
}
static inline TCGArg tcgv_i128_arg(TCGv_i128 v)
{
return temp_arg(tcgv_i128_temp(v));
}
static inline TCGArg tcgv_ptr_arg(TCGv_ptr v)
{
return temp_arg(tcgv_ptr_temp(v));
@ -728,6 +738,11 @@ static inline TCGv_i64 temp_tcgv_i64(TCGTemp *t)
return (TCGv_i64)temp_tcgv_i32(t);
}
static inline TCGv_i128 temp_tcgv_i128(TCGTemp *t)
{
return (TCGv_i128)temp_tcgv_i32(t);
}
static inline TCGv_ptr temp_tcgv_ptr(TCGTemp *t)
{
return (TCGv_ptr)temp_tcgv_i32(t);
@ -853,6 +868,11 @@ static inline void tcg_temp_free_i64(TCGv_i64 arg)
tcg_temp_free_internal(tcgv_i64_temp(arg));
}
static inline void tcg_temp_free_i128(TCGv_i128 arg)
{
tcg_temp_free_internal(tcgv_i128_temp(arg));
}
static inline void tcg_temp_free_ptr(TCGv_ptr arg)
{
tcg_temp_free_internal(tcgv_ptr_temp(arg));
@ -901,6 +921,18 @@ static inline TCGv_i64 tcg_temp_local_new_i64(void)
return temp_tcgv_i64(t);
}
static inline TCGv_i128 tcg_temp_new_i128(void)
{
TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, false);
return temp_tcgv_i128(t);
}
static inline TCGv_i128 tcg_temp_local_new_i128(void)
{
TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, true);
return temp_tcgv_i128(t);
}
static inline TCGv_ptr tcg_global_mem_new_ptr(TCGv_ptr reg, intptr_t offset,
const char *name)
{

60
tcg/tcg.c
View File

@ -1273,26 +1273,45 @@ TCGTemp *tcg_temp_new_internal(TCGType type, bool temp_local)
tcg_debug_assert(ts->base_type == type);
tcg_debug_assert(ts->kind == kind);
} else {
int i, n;
switch (type) {
case TCG_TYPE_I32:
case TCG_TYPE_V64:
case TCG_TYPE_V128:
case TCG_TYPE_V256:
n = 1;
break;
case TCG_TYPE_I64:
n = 64 / TCG_TARGET_REG_BITS;
break;
case TCG_TYPE_I128:
n = 128 / TCG_TARGET_REG_BITS;
break;
default:
g_assert_not_reached();
}
ts = tcg_temp_alloc(s);
if (TCG_TARGET_REG_BITS == 32 && type == TCG_TYPE_I64) {
TCGTemp *ts2 = tcg_temp_alloc(s);
ts->base_type = type;
ts->temp_allocated = 1;
ts->kind = kind;
ts->base_type = type;
ts->type = TCG_TYPE_I32;
ts->temp_allocated = 1;
ts->kind = kind;
tcg_debug_assert(ts2 == ts + 1);
ts2->base_type = TCG_TYPE_I64;
ts2->type = TCG_TYPE_I32;
ts2->temp_allocated = 1;
ts2->temp_subindex = 1;
ts2->kind = kind;
} else {
ts->base_type = type;
if (n == 1) {
ts->type = type;
ts->temp_allocated = 1;
ts->kind = kind;
} else {
ts->type = TCG_TYPE_REG;
for (i = 1; i < n; ++i) {
TCGTemp *ts2 = tcg_temp_alloc(s);
tcg_debug_assert(ts2 == ts + i);
ts2->base_type = type;
ts2->type = TCG_TYPE_REG;
ts2->temp_allocated = 1;
ts2->temp_subindex = i;
ts2->kind = kind;
}
}
}
@ -3384,9 +3403,14 @@ static void temp_allocate_frame(TCGContext *s, TCGTemp *ts)
case TCG_TYPE_V64:
align = 8;
break;
case TCG_TYPE_I128:
case TCG_TYPE_V128:
case TCG_TYPE_V256:
/* Note that we do not require aligned storage for V256. */
/*
* Note that we do not require aligned storage for V256,
* and that we provide alignment for I128 to match V128,
* even if that's above what the host ABI requires.
*/
align = 16;
break;
default: