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tcg: Add basic data movement for TCGv_i128

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Add code generation functions for data movement between
TCGv_i128 (mov) and to/from TCGv_i64 (concat, extract).

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 08:00:51 +10:00
parent 43eef72f41
commit 4771e71c28
3 changed files with 37 additions and 0 deletions
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13
tcg/tcg-internal.h
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@ -117,4 +117,17 @@ extern TCGv_i32 TCGV_LOW(TCGv_i64) QEMU_ERROR("32-bit code path is reachable");
extern TCGv_i32 TCGV_HIGH(TCGv_i64) QEMU_ERROR("32-bit code path is reachable");
#endif
static inline TCGv_i64 TCGV128_LOW(TCGv_i128 t)
{
/* For 32-bit, offset by 2, which may then have TCGV_{LOW,HIGH} applied. */
int o = HOST_BIG_ENDIAN ? 64 / TCG_TARGET_REG_BITS : 0;
return temp_tcgv_i64(tcgv_i128_temp(t) + o);
}
static inline TCGv_i64 TCGV128_HIGH(TCGv_i128 t)
{
int o = HOST_BIG_ENDIAN ? 0 : 64 / TCG_TARGET_REG_BITS;
return temp_tcgv_i64(tcgv_i128_temp(t) + o);
}
#endif /* TCG_INTERNAL_H */