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tcg: Add temp allocation for TCGv_i128

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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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60
tcg/tcg.c
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@ -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: