diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2021-01-29 11:26:34 -1000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-03-06 11:45:21 -0800 |
| commit | 0dd0170cb1f697f4d8b8d6fa0243363f22c9649e (patch) | |
| tree | c62f695be3ae55280513932648cb22b4679f4a98 /tcg | |
| parent | 9758c8cbbdeaefc4e065c7614a6d10c9db810c25 (diff) | |
tcg/tci: Remove tci_read_r16
Use explicit casts for ext16u opcodes, and allow truncation
to happen with the store for st16 opcodes, and with the call
for bswap16 opcodes.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/tci.c | 28 |
1 files changed, 7 insertions, 21 deletions
@@ -71,11 +71,6 @@ static int32_t tci_read_reg32s(const tcg_target_ulong *regs, TCGReg index) } #endif -static uint16_t tci_read_reg16(const tcg_target_ulong *regs, TCGReg index) -{ - return (uint16_t)tci_read_reg(regs, index); -} - static uint32_t tci_read_reg32(const tcg_target_ulong *regs, TCGReg index) { return (uint32_t)tci_read_reg(regs, index); @@ -157,15 +152,6 @@ tci_read_r(const tcg_target_ulong *regs, const uint8_t **tb_ptr) return value; } -/* Read indexed register (16 bit) from bytecode. */ -static uint16_t tci_read_r16(const tcg_target_ulong *regs, - const uint8_t **tb_ptr) -{ - uint16_t value = tci_read_reg16(regs, **tb_ptr); - *tb_ptr += 1; - return value; -} - #if TCG_TARGET_HAS_ext16s_i32 || TCG_TARGET_HAS_ext16s_i64 /* Read indexed register (16 bit signed) from bytecode. */ static int16_t tci_read_r16s(const tcg_target_ulong *regs, @@ -509,7 +495,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, *(uint8_t *)(t1 + t2) = t0; break; CASE_32_64(st16) - t0 = tci_read_r16(regs, &tb_ptr); + t0 = tci_read_r(regs, &tb_ptr); t1 = tci_read_r(regs, &tb_ptr); t2 = tci_read_s32(&tb_ptr); *(uint16_t *)(t1 + t2) = t0; @@ -699,14 +685,14 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, #if TCG_TARGET_HAS_ext16u_i32 case INDEX_op_ext16u_i32: t0 = *tb_ptr++; - t1 = tci_read_r16(regs, &tb_ptr); - tci_write_reg(regs, t0, t1); + t1 = tci_read_r(regs, &tb_ptr); + tci_write_reg(regs, t0, (uint16_t)t1); break; #endif #if TCG_TARGET_HAS_bswap16_i32 case INDEX_op_bswap16_i32: t0 = *tb_ptr++; - t1 = tci_read_r16(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, bswap16(t1)); break; #endif @@ -907,8 +893,8 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, #if TCG_TARGET_HAS_ext16u_i64 case INDEX_op_ext16u_i64: t0 = *tb_ptr++; - t1 = tci_read_r16(regs, &tb_ptr); - tci_write_reg(regs, t0, t1); + t1 = tci_read_r(regs, &tb_ptr); + tci_write_reg(regs, t0, (uint16_t)t1); break; #endif #if TCG_TARGET_HAS_ext32s_i64 @@ -930,7 +916,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, #if TCG_TARGET_HAS_bswap16_i64 case INDEX_op_bswap16_i64: t0 = *tb_ptr++; - t1 = tci_read_r16(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, bswap16(t1)); break; #endif |