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author | Richard Henderson <richard.henderson@linaro.org> | 2021-01-29 11:28:43 -1000 |
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committer | Richard Henderson <richard.henderson@linaro.org> | 2021-03-06 11:45:21 -0800 |
commit | 984ae87314e24fa272d9c868307236b5caff0a30 (patch) | |
tree | b2116783f4c143ce5a59d549e7a351ac34de1f55 /tcg/tci.c | |
parent | 994edd6719c32b7e9fec15d6f098ae8b899f806b (diff) | |
download | qemu-984ae87314e24fa272d9c868307236b5caff0a30.zip qemu-984ae87314e24fa272d9c868307236b5caff0a30.tar.gz qemu-984ae87314e24fa272d9c868307236b5caff0a30.tar.bz2 |
tcg/tci: Remove tci_read_r32
Use explicit casts for ext32u opcodes, and allow truncation
to happen for other users.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/tci.c')
-rw-r--r-- | tcg/tci.c | 122 |
1 files changed, 54 insertions, 68 deletions
@@ -64,11 +64,6 @@ static int32_t tci_read_reg32s(const tcg_target_ulong *regs, TCGReg index) } #endif -static uint32_t tci_read_reg32(const tcg_target_ulong *regs, TCGReg index) -{ - return (uint32_t)tci_read_reg(regs, index); -} - #if TCG_TARGET_REG_BITS == 64 static uint64_t tci_read_reg64(const tcg_target_ulong *regs, TCGReg index) { @@ -145,22 +140,13 @@ tci_read_r(const tcg_target_ulong *regs, const uint8_t **tb_ptr) return value; } -/* Read indexed register (32 bit) from bytecode. */ -static uint32_t tci_read_r32(const tcg_target_ulong *regs, - const uint8_t **tb_ptr) -{ - uint32_t value = tci_read_reg32(regs, **tb_ptr); - *tb_ptr += 1; - return value; -} - #if TCG_TARGET_REG_BITS == 32 /* Read two indexed registers (2 * 32 bit) from bytecode. */ static uint64_t tci_read_r64(const tcg_target_ulong *regs, const uint8_t **tb_ptr) { - uint32_t low = tci_read_r32(regs, tb_ptr); - return tci_uint64(tci_read_r32(regs, tb_ptr), low); + uint32_t low = tci_read_r(regs, tb_ptr); + return tci_uint64(tci_read_r(regs, tb_ptr), low); } #elif TCG_TARGET_REG_BITS == 64 /* Read indexed register (32 bit signed) from bytecode. */ @@ -404,8 +390,8 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, continue; case INDEX_op_setcond_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); condition = *tb_ptr++; tci_write_reg(regs, t0, tci_compare32(t1, t2, condition)); break; @@ -428,7 +414,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, #endif case INDEX_op_mov_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, t1); break; case INDEX_op_tci_movi_i32: @@ -484,7 +470,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, break; case INDEX_op_st_i32: CASE_64(st32) - t0 = tci_read_r32(regs, &tb_ptr); + t0 = tci_read_r(regs, &tb_ptr); t1 = tci_read_r(regs, &tb_ptr); t2 = tci_read_s32(&tb_ptr); *(uint32_t *)(t1 + t2) = t0; @@ -494,62 +480,62 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, case INDEX_op_add_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, t1 + t2); break; case INDEX_op_sub_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, t1 - t2); break; case INDEX_op_mul_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, t1 * t2); break; case INDEX_op_div_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, (int32_t)t1 / (int32_t)t2); break; case INDEX_op_divu_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); - tci_write_reg(regs, t0, t1 / t2); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); + tci_write_reg(regs, t0, (uint32_t)t1 / (uint32_t)t2); break; case INDEX_op_rem_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, (int32_t)t1 % (int32_t)t2); break; case INDEX_op_remu_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); - tci_write_reg(regs, t0, t1 % t2); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); + tci_write_reg(regs, t0, (uint32_t)t1 % (uint32_t)t2); break; case INDEX_op_and_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, t1 & t2); break; case INDEX_op_or_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, t1 | t2); break; case INDEX_op_xor_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, t1 ^ t2); break; @@ -557,41 +543,41 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, case INDEX_op_shl_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); - tci_write_reg(regs, t0, t1 << (t2 & 31)); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); + tci_write_reg(regs, t0, (uint32_t)t1 << (t2 & 31)); break; case INDEX_op_shr_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); - tci_write_reg(regs, t0, t1 >> (t2 & 31)); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); + tci_write_reg(regs, t0, (uint32_t)t1 >> (t2 & 31)); break; case INDEX_op_sar_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); - tci_write_reg(regs, t0, ((int32_t)t1 >> (t2 & 31))); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); + tci_write_reg(regs, t0, (int32_t)t1 >> (t2 & 31)); break; #if TCG_TARGET_HAS_rot_i32 case INDEX_op_rotl_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, rol32(t1, t2 & 31)); break; case INDEX_op_rotr_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, ror32(t1, t2 & 31)); break; #endif #if TCG_TARGET_HAS_deposit_i32 case INDEX_op_deposit_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - t2 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); + t2 = tci_read_r(regs, &tb_ptr); tmp16 = *tb_ptr++; tmp8 = *tb_ptr++; tmp32 = (((1 << tmp8) - 1) << tmp16); @@ -599,8 +585,8 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, break; #endif case INDEX_op_brcond_i32: - t0 = tci_read_r32(regs, &tb_ptr); - t1 = tci_read_r32(regs, &tb_ptr); + t0 = tci_read_r(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); condition = *tb_ptr++; label = tci_read_label(&tb_ptr); if (tci_compare32(t0, t1, condition)) { @@ -638,9 +624,9 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, case INDEX_op_mulu2_i32: t0 = *tb_ptr++; t1 = *tb_ptr++; - t2 = tci_read_r32(regs, &tb_ptr); - tmp64 = tci_read_r32(regs, &tb_ptr); - tci_write_reg64(regs, t1, t0, t2 * tmp64); + t2 = tci_read_r(regs, &tb_ptr); + tmp64 = (uint32_t)tci_read_r(regs, &tb_ptr); + tci_write_reg64(regs, t1, t0, (uint32_t)t2 * tmp64); break; #endif /* TCG_TARGET_REG_BITS == 32 */ #if TCG_TARGET_HAS_ext8s_i32 @@ -681,21 +667,21 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, #if TCG_TARGET_HAS_bswap32_i32 case INDEX_op_bswap32_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, bswap32(t1)); break; #endif #if TCG_TARGET_HAS_not_i32 case INDEX_op_not_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, ~t1); break; #endif #if TCG_TARGET_HAS_neg_i32 case INDEX_op_neg_i32: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, -t1); break; #endif @@ -892,8 +878,8 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, #endif case INDEX_op_extu_i32_i64: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); - tci_write_reg(regs, t0, t1); + t1 = tci_read_r(regs, &tb_ptr); + tci_write_reg(regs, t0, (uint32_t)t1); break; #if TCG_TARGET_HAS_bswap16_i64 case INDEX_op_bswap16_i64: @@ -905,7 +891,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env, #if TCG_TARGET_HAS_bswap32_i64 case INDEX_op_bswap32_i64: t0 = *tb_ptr++; - t1 = tci_read_r32(regs, &tb_ptr); + t1 = tci_read_r(regs, &tb_ptr); tci_write_reg(regs, t0, bswap32(t1)); break; #endif |