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tcg/i386: Drop BYTEH deposits for 64-bit

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It is more useful to allow low-part deposits into all registers
than to restrict allocation for high-byte deposits.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-08-13 10:42:54 -07:00
parent 64919f710f
commit 36df88c040
4 changed files with 6 additions and 8 deletions
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4
tcg/i386/tcg-target.h
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@ -227,8 +227,8 @@ typedef enum {
#define TCG_TARGET_HAS_cmpsel_vec -1
#define TCG_TARGET_deposit_i32_valid(ofs, len) \
(((ofs) == 0 && (len) == 8) || ((ofs) == 8 && (len) == 8) || \
((ofs) == 0 && (len) == 16))
(((ofs) == 0 && ((len) == 8 || (len) == 16)) || \
(TCG_TARGET_REG_BITS == 32 && (ofs) == 8 && (len) == 8))
#define TCG_TARGET_deposit_i64_valid TCG_TARGET_deposit_i32_valid
/* Check for the possibility of high-byte extraction and, for 64-bit,