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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-06-13 15:53:43 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-06-29 10:04:57 -0700 |
| commit | b53357acb4d2c96adaf4dbf1f21999b0e1cf5bda (patch) | |
| tree | a66d463214d30e3a641cc71f5097d21f4f11deb1 /tcg | |
| parent | 359feba534b3473471d35934ffd66781aaff468d (diff) | |
| download | qemu-b53357acb4d2c96adaf4dbf1f21999b0e1cf5bda.zip qemu-b53357acb4d2c96adaf4dbf1f21999b0e1cf5bda.tar.gz qemu-b53357acb4d2c96adaf4dbf1f21999b0e1cf5bda.tar.bz2 | |
tcg: Make use of bswap flags in tcg_gen_qemu_st_*
By removing TCG_BSWAP_IZ we indicate that the input is
not zero-extended, and thus can remove an explicit extend.
By removing TCG_BSWAP_OZ, we allow the implementation to
leave high bits set, which will be ignored by the store.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/tcg-op.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index 0eac2d1..44d711c 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -2915,8 +2915,7 @@ void tcg_gen_qemu_st_i32(TCGv_i32 val, TCGv addr, TCGArg idx, MemOp memop) swap = tcg_temp_new_i32(); switch (memop & MO_SIZE) { case MO_16: - tcg_gen_ext16u_i32(swap, val); - tcg_gen_bswap16_i32(swap, swap, TCG_BSWAP_IZ | TCG_BSWAP_OZ); + tcg_gen_bswap16_i32(swap, val, 0); break; case MO_32: tcg_gen_bswap32_i32(swap, val); @@ -3013,12 +3012,10 @@ void tcg_gen_qemu_st_i64(TCGv_i64 val, TCGv addr, TCGArg idx, MemOp memop) swap = tcg_temp_new_i64(); switch (memop & MO_SIZE) { case MO_16: - tcg_gen_ext16u_i64(swap, val); - tcg_gen_bswap16_i64(swap, swap, TCG_BSWAP_IZ | TCG_BSWAP_OZ); + tcg_gen_bswap16_i64(swap, val, 0); break; case MO_32: - tcg_gen_ext32u_i64(swap, val); - tcg_gen_bswap32_i64(swap, swap, TCG_BSWAP_IZ | TCG_BSWAP_OZ); + tcg_gen_bswap32_i64(swap, val, 0); break; case MO_64: tcg_gen_bswap64_i64(swap, val); |