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.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/tcg-op.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index 702da7afb7..5dbcd1b0cf 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);
--
2.25.1