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authorRichard Henderson <richard.henderson@linaro.org>2021-01-28 15:07:41 -1000
committerRichard Henderson <richard.henderson@linaro.org>2021-02-05 10:24:14 -1000
commit2f74f45e32beb0ae24366128fdf685a5121c0f67 (patch)
treec42e7ad0532bfa98c43796ffb705d696ab44cae5 /tcg/tci.c
parent552672bae63dd2c470fc533f276b746bae90b813 (diff)
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tcg/tci: Remove TCG_CONST
Restrict all operands to registers. All constants will be forced into registers by the middle-end. Removing the difference in how immediate integers were encoded will allow more code to be shared between 32-bit and 64-bit operations. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/tci.c')
-rw-r--r--tcg/tci.c189
1 files changed, 67 insertions, 122 deletions
diff --git a/tcg/tci.c b/tcg/tci.c
index 935eb87..fb3c97a 100644
--- a/tcg/tci.c
+++ b/tcg/tci.c
@@ -255,61 +255,6 @@ tci_read_ulong(const tcg_target_ulong *regs, const uint8_t **tb_ptr)
return taddr;
}
-/* Read indexed register or constant (native size) from bytecode. */
-static tcg_target_ulong
-tci_read_ri(const tcg_target_ulong *regs, const uint8_t **tb_ptr)
-{
- tcg_target_ulong value;
- TCGReg r = **tb_ptr;
- *tb_ptr += 1;
- if (r == TCG_CONST) {
- value = tci_read_i(tb_ptr);
- } else {
- value = tci_read_reg(regs, r);
- }
- return value;
-}
-
-/* Read indexed register or constant (32 bit) from bytecode. */
-static uint32_t tci_read_ri32(const tcg_target_ulong *regs,
- const uint8_t **tb_ptr)
-{
- uint32_t value;
- TCGReg r = **tb_ptr;
- *tb_ptr += 1;
- if (r == TCG_CONST) {
- value = tci_read_i32(tb_ptr);
- } else {
- value = tci_read_reg32(regs, r);
- }
- return value;
-}
-
-#if TCG_TARGET_REG_BITS == 32
-/* Read two indexed registers or constants (2 * 32 bit) from bytecode. */
-static uint64_t tci_read_ri64(const tcg_target_ulong *regs,
- const uint8_t **tb_ptr)
-{
- uint32_t low = tci_read_ri32(regs, tb_ptr);
- return tci_uint64(tci_read_ri32(regs, tb_ptr), low);
-}
-#elif TCG_TARGET_REG_BITS == 64
-/* Read indexed register or constant (64 bit) from bytecode. */
-static uint64_t tci_read_ri64(const tcg_target_ulong *regs,
- const uint8_t **tb_ptr)
-{
- uint64_t value;
- TCGReg r = **tb_ptr;
- *tb_ptr += 1;
- if (r == TCG_CONST) {
- value = tci_read_i64(tb_ptr);
- } else {
- value = tci_read_reg64(regs, r);
- }
- return value;
-}
-#endif
-
static tcg_target_ulong tci_read_label(const uint8_t **tb_ptr)
{
tcg_target_ulong label = tci_read_i(tb_ptr);
@@ -504,7 +449,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
switch (opc) {
case INDEX_op_call:
- t0 = tci_read_ri(regs, &tb_ptr);
+ t0 = tci_read_i(&tb_ptr);
tci_tb_ptr = (uintptr_t)tb_ptr;
#if TCG_TARGET_REG_BITS == 32
tmp64 = ((helper_function)t0)(tci_read_reg(regs, TCG_REG_R0),
@@ -539,7 +484,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
case INDEX_op_setcond_i32:
t0 = *tb_ptr++;
t1 = tci_read_r32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
condition = *tb_ptr++;
tci_write_reg(regs, t0, tci_compare32(t1, t2, condition));
break;
@@ -547,7 +492,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
case INDEX_op_setcond2_i32:
t0 = *tb_ptr++;
tmp64 = tci_read_r64(regs, &tb_ptr);
- v64 = tci_read_ri64(regs, &tb_ptr);
+ v64 = tci_read_r64(regs, &tb_ptr);
condition = *tb_ptr++;
tci_write_reg(regs, t0, tci_compare64(tmp64, v64, condition));
break;
@@ -555,7 +500,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
case INDEX_op_setcond_i64:
t0 = *tb_ptr++;
t1 = tci_read_r64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
condition = *tb_ptr++;
tci_write_reg(regs, t0, tci_compare64(t1, t2, condition));
break;
@@ -628,62 +573,62 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
case INDEX_op_add_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 + t2);
break;
case INDEX_op_sub_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 - t2);
break;
case INDEX_op_mul_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 * t2);
break;
case INDEX_op_div_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(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_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 / t2);
break;
case INDEX_op_rem_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(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_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 % t2);
break;
case INDEX_op_and_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 & t2);
break;
case INDEX_op_or_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 | t2);
break;
case INDEX_op_xor_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 ^ t2);
break;
@@ -691,33 +636,33 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
case INDEX_op_shl_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 << (t2 & 31));
break;
case INDEX_op_shr_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 >> (t2 & 31));
break;
case INDEX_op_sar_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &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)));
break;
#if TCG_TARGET_HAS_rot_i32
case INDEX_op_rotl_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, rol32(t1, t2 & 31));
break;
case INDEX_op_rotr_i32:
t0 = *tb_ptr++;
- t1 = tci_read_ri32(regs, &tb_ptr);
- t2 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
+ t2 = tci_read_r32(regs, &tb_ptr);
tci_write_reg(regs, t0, ror32(t1, t2 & 31));
break;
#endif
@@ -734,7 +679,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
#endif
case INDEX_op_brcond_i32:
t0 = tci_read_r32(regs, &tb_ptr);
- t1 = tci_read_ri32(regs, &tb_ptr);
+ t1 = tci_read_r32(regs, &tb_ptr);
condition = *tb_ptr++;
label = tci_read_label(&tb_ptr);
if (tci_compare32(t0, t1, condition)) {
@@ -760,7 +705,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
break;
case INDEX_op_brcond2_i32:
tmp64 = tci_read_r64(regs, &tb_ptr);
- v64 = tci_read_ri64(regs, &tb_ptr);
+ v64 = tci_read_r64(regs, &tb_ptr);
condition = *tb_ptr++;
label = tci_read_label(&tb_ptr);
if (tci_compare64(tmp64, v64, condition)) {
@@ -870,62 +815,62 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
case INDEX_op_add_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 + t2);
break;
case INDEX_op_sub_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 - t2);
break;
case INDEX_op_mul_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 * t2);
break;
case INDEX_op_div_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, (int64_t)t1 / (int64_t)t2);
break;
case INDEX_op_divu_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, (uint64_t)t1 / (uint64_t)t2);
break;
case INDEX_op_rem_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, (int64_t)t1 % (int64_t)t2);
break;
case INDEX_op_remu_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, (uint64_t)t1 % (uint64_t)t2);
break;
case INDEX_op_and_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 & t2);
break;
case INDEX_op_or_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 | t2);
break;
case INDEX_op_xor_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 ^ t2);
break;
@@ -933,33 +878,33 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
case INDEX_op_shl_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 << (t2 & 63));
break;
case INDEX_op_shr_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, t1 >> (t2 & 63));
break;
case INDEX_op_sar_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, ((int64_t)t1 >> (t2 & 63)));
break;
#if TCG_TARGET_HAS_rot_i64
case INDEX_op_rotl_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, rol64(t1, t2 & 63));
break;
case INDEX_op_rotr_i64:
t0 = *tb_ptr++;
- t1 = tci_read_ri64(regs, &tb_ptr);
- t2 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
+ t2 = tci_read_r64(regs, &tb_ptr);
tci_write_reg(regs, t0, ror64(t1, t2 & 63));
break;
#endif
@@ -976,7 +921,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
#endif
case INDEX_op_brcond_i64:
t0 = tci_read_r64(regs, &tb_ptr);
- t1 = tci_read_ri64(regs, &tb_ptr);
+ t1 = tci_read_r64(regs, &tb_ptr);
condition = *tb_ptr++;
label = tci_read_label(&tb_ptr);
if (tci_compare64(t0, t1, condition)) {