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Sparc code generator update

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5009 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-08-15 18:14:44 +00:00
parent bc352085d2
commit 53c3748794
2 changed files with 149 additions and 96 deletions
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241
tcg/sparc/tcg-target.c
View File

@ -137,8 +137,13 @@ static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
case 'L': /* qemu_ld/st constraint */
ct->ct |= TCG_CT_REG;
tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
tcg_regset_reset_reg(ct->u.regs, TCG_REG_I0);
tcg_regset_reset_reg(ct->u.regs, TCG_REG_I1);
// Helper args
tcg_regset_reset_reg(ct->u.regs, TCG_REG_O0);
tcg_regset_reset_reg(ct->u.regs, TCG_REG_O1);
tcg_regset_reset_reg(ct->u.regs, TCG_REG_O2);
// Internal use
tcg_regset_reset_reg(ct->u.regs, TCG_REG_L0);
tcg_regset_reset_reg(ct->u.regs, TCG_REG_L1);
break;
case 'I':
ct->ct |= TCG_CT_CONST_S11;
@ -290,7 +295,7 @@ static inline void tcg_out_movi_imm13(TCGContext *s, int ret, uint32_t arg)
static inline void tcg_out_movi_imm32(TCGContext *s, int ret, uint32_t arg)
{
if (check_fit_i32(arg, 13))
if (check_fit_i32(arg, 12))
tcg_out_movi_imm13(s, ret, arg);
else {
tcg_out_sethi(s, ret, arg);
@ -393,6 +398,18 @@ static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
}
}
static inline void tcg_out_andi(TCGContext *s, int reg, tcg_target_long val)
{
if (val != 0) {
if (check_fit_tl(val, 13))
tcg_out_arithi(s, reg, reg, val, ARITH_AND);
else {
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, val);
tcg_out_arith(s, reg, reg, TCG_REG_I5, ARITH_AND);
}
}
}
static inline void tcg_out_nop(TCGContext *s)
{
tcg_out_sethi(s, TCG_REG_G0, 0);
@ -480,9 +497,10 @@ static const void * const qemu_st_helpers[4] = {
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
int opc)
{
int addr_reg, data_reg, r0, r1, mem_index, s_bits, ld_op;
int addr_reg, data_reg, r0, r1, arg0, arg1, mem_index, s_bits;
int target_ld_op, host_ld_op;
#if defined(CONFIG_SOFTMMU)
uint8_t *label1_ptr, *label2_ptr;
uint32_t *label1_ptr, *label2_ptr;
#endif
data_reg = *args++;
@ -490,15 +508,24 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
mem_index = *args;
s_bits = opc & 3;
r0 = TCG_REG_I0;
r1 = TCG_REG_I1;
r0 = TCG_REG_L0;
r1 = TCG_REG_L1;
arg0 = TCG_REG_O0;
arg1 = TCG_REG_O1;
#if TARGET_LONG_BITS == 32
ld_op = LDUW;
target_ld_op = LDUW;
#else
ld_op = LDX;
target_ld_op = LDX;
#endif
#ifdef __arch64__
host_ld_op = LDX;
#else
host_ld_op = LDUW;
#endif
#if defined(CONFIG_SOFTMMU)
/* srl addr_reg, x, r1 */
tcg_out_arithi(s, r1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS,
@ -508,56 +535,59 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
ARITH_AND);
/* and r1, x, r1 */
tcg_out_arithi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS,
ARITH_AND);
tcg_out_andi(s, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
/* add r1, x, r1 */
tcg_out_arithi(s, r1, r1, offsetof(CPUState, tlb_table[mem_index][0].addr_read),
ARITH_ADD);
tcg_out_addi(s, r1, offsetof(CPUState, tlb_table[mem_index][0].addr_read));
/* ld [env + r1], r1 */
tcg_out_ldst(s, r1, TCG_AREG0, r1, ld_op);
/* add env, r1, r1 */
tcg_out_arith(s, r1, TCG_AREG0, r1, ARITH_ADD);
/* subcc r0, r1, %g0 */
tcg_out_arith(s, TCG_REG_G0, r0, r1, ARITH_SUBCC);
/* ld [r1], arg1 */
tcg_out32(s, target_ld_op | INSN_RD(arg1) | INSN_RS1(r1) | INSN_RS2(TCG_REG_G0));
/* subcc r0, arg1, %g0 */
tcg_out_arith(s, TCG_REG_G0, r0, arg1, ARITH_SUBCC);
/* will become:
be label1 */
label1_ptr = s->code_ptr;
label1_ptr = (uint32_t *)s->code_ptr;
tcg_out32(s, 0);
/* mov (delay slot)*/
tcg_out_mov(s, r0, addr_reg);
/* mov (delay slot) */
tcg_out_mov(s, arg0, addr_reg);
/* XXX: move that code at the end of the TB */
/* qemu_ld_helper[s_bits](arg0, arg1) */
tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_ld_helpers[s_bits]
- (tcg_target_ulong)s->code_ptr) >> 2)
& 0x3fffffff));
/* mov (delay slot)*/
tcg_out_movi(s, TCG_TYPE_I32, r1, mem_index);
/* mov (delay slot) */
tcg_out_movi(s, TCG_TYPE_I32, arg1, mem_index);
/* data_reg = sign_extend(arg0) */
switch(opc) {
case 0 | 4:
/* sll i0, 24/56, i0 */
tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0,
sizeof(tcg_target_long) * 8 - 8, SHIFT_SLL);
/* sra i0, 24/56, data_reg */
tcg_out_arithi(s, data_reg, TCG_REG_I0,
sizeof(tcg_target_long) * 8 - 8, SHIFT_SRA);
/* sll arg0, 24/56, data_reg */
tcg_out_arithi(s, data_reg, arg0, sizeof(tcg_target_long) * 8 - 8,
SHIFT_SLL);
/* sra data_reg, 24/56, data_reg */
tcg_out_arithi(s, data_reg, data_reg, sizeof(tcg_target_long) * 8 - 8,
SHIFT_SRA);
break;
case 1 | 4:
/* sll i0, 16/48, i0 */
tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0,
sizeof(tcg_target_long) * 8 - 16, SHIFT_SLL);
/* sra i0, 16/48, data_reg */
tcg_out_arithi(s, data_reg, TCG_REG_I0,
sizeof(tcg_target_long) * 8 - 16, SHIFT_SRA);
/* sll arg0, 16/48, data_reg */
tcg_out_arithi(s, data_reg, arg0, sizeof(tcg_target_long) * 8 - 16,
SHIFT_SLL);
/* sra data_reg, 16/48, data_reg */
tcg_out_arithi(s, data_reg, data_reg, sizeof(tcg_target_long) * 8 - 16,
SHIFT_SRA);
break;
case 2 | 4:
/* sll i0, 32, i0 */
tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0, 32, SHIFT_SLL);
/* sra i0, 32, data_reg */
tcg_out_arithi(s, data_reg, TCG_REG_I0, 32, SHIFT_SRA);
/* sll arg0, 32, data_reg */
tcg_out_arithi(s, data_reg, arg0, 32, SHIFT_SLL);
/* sra data_reg, 32, data_reg */
tcg_out_arithi(s, data_reg, data_reg, 32, SHIFT_SRA);
break;
case 0:
case 1:
@ -565,24 +595,27 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
case 3:
default:
/* mov */
tcg_out_mov(s, data_reg, TCG_REG_I0);
tcg_out_mov(s, data_reg, arg0);
break;
}
/* will become:
ba label2 */
label2_ptr = s->code_ptr;
label2_ptr = (uint32_t *)s->code_ptr;
tcg_out32(s, 0);
/* nop (delay slot */
tcg_out_nop(s);
/* label1: */
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) |
INSN_OFF22((unsigned long)label1_ptr -
(unsigned long)s->code_ptr));
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x2) |
INSN_OFF22((unsigned long)s->code_ptr -
(unsigned long)label1_ptr));
/* ld [r1 + x], r1 */
tcg_out_ldst(s, r1, r1, offsetof(CPUTLBEntry, addend) -
offsetof(CPUTLBEntry, addr_read), ld_op);
/* add x(r1), r0 */
offsetof(CPUTLBEntry, addr_read), host_ld_op);
/* add r0, r1, r0 */
tcg_out_arith(s, r0, r1, r0, ARITH_ADD);
#else
r0 = addr_reg;
@ -649,17 +682,18 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
#if defined(CONFIG_SOFTMMU)
/* label2: */
*label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) |
INSN_OFF22((unsigned long)label2_ptr -
(unsigned long)s->code_ptr));
INSN_OFF22((unsigned long)s->code_ptr -
(unsigned long)label2_ptr));
#endif
}
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
int opc)
{
int addr_reg, data_reg, r0, r1, mem_index, s_bits, ld_op;
int addr_reg, data_reg, r0, r1, arg0, arg1, arg2, mem_index, s_bits;
int target_ld_op, host_ld_op;
#if defined(CONFIG_SOFTMMU)
uint8_t *label1_ptr, *label2_ptr;
uint32_t *label1_ptr, *label2_ptr;
#endif
data_reg = *args++;
@ -668,67 +702,77 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
s_bits = opc;
r0 = TCG_REG_I5;
r1 = TCG_REG_I4;
r0 = TCG_REG_L0;
r1 = TCG_REG_L1;
arg0 = TCG_REG_O0;
arg1 = TCG_REG_O1;
arg2 = TCG_REG_O2;
#if TARGET_LONG_BITS == 32
ld_op = LDUW;
target_ld_op = LDUW;
#else
ld_op = LDX;
target_ld_op = LDX;
#endif
#ifdef __arch64__
host_ld_op = LDX;
#else
host_ld_op = LDUW;
#endif
#if defined(CONFIG_SOFTMMU)
/* srl addr_reg, x, r1 */
tcg_out_arithi(s, r1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS,
SHIFT_SRL);
/* and addr_reg, x, r0 */
tcg_out_arithi(s, r0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1),
ARITH_AND);
/* and r1, x, r1 */
tcg_out_arithi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS,
ARITH_AND);
tcg_out_andi(s, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
/* add r1, x, r1 */
tcg_out_arithi(s, r1, r1,
offsetof(CPUState, tlb_table[mem_index][0].addr_write),
ARITH_ADD);
tcg_out_addi(s, r1, offsetof(CPUState, tlb_table[mem_index][0].addr_write));
/* ld [env + r1], r1 */
tcg_out_ldst(s, r1, TCG_AREG0, r1, ld_op);
/* add env, r1, r1 */
tcg_out_arith(s, r1, TCG_AREG0, r1, ARITH_ADD);
/* subcc r0, r1, %g0 */
tcg_out_arith(s, TCG_REG_G0, r0, r1, ARITH_SUBCC);
/* ld [r1], arg1 */
tcg_out32(s, target_ld_op | INSN_RD(arg1) | INSN_RS1(r1) | INSN_RS2(TCG_REG_G0));
/* subcc r0, arg1, %g0 */
tcg_out_arith(s, TCG_REG_G0, r0, arg1, ARITH_SUBCC);
/* will become:
be label1 */
label1_ptr = s->code_ptr;
label1_ptr = (uint32_t *)s->code_ptr;
tcg_out32(s, 0);
/* mov (delay slot)*/
tcg_out_mov(s, r0, addr_reg);
/* mov (delay slot) */
tcg_out_mov(s, arg0, addr_reg);
/* arg1 = sign_extend(data_reg); */
switch(opc) {
case 0 | 4:
/* sll i0, 24/56, i0 */
tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0,
sizeof(tcg_target_long) * 8 - 8, SHIFT_SLL);
/* sra i0, 24/56, data_reg */
tcg_out_arithi(s, data_reg, TCG_REG_I0,
sizeof(tcg_target_long) * 8 - 8, SHIFT_SRA);
/* sll data_reg, 24/56, arg1 */
tcg_out_arithi(s, arg1, data_reg, sizeof(tcg_target_long) * 8 - 8, SHIFT_SLL);
/* sra arg1, 24/56, arg1 */
tcg_out_arithi(s, arg1, arg1, sizeof(tcg_target_long) * 8 - 8,
SHIFT_SRA);
break;
case 1 | 4:
/* sll i0, 16/48, i0 */
tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0,
sizeof(tcg_target_long) * 8 - 16, SHIFT_SLL);
/* sra i0, 16/48, data_reg */
tcg_out_arithi(s, data_reg, TCG_REG_I0,
sizeof(tcg_target_long) * 8 - 16, SHIFT_SRA);
/* sll data_reg, 16/48, arg1 */
tcg_out_arithi(s, data_reg, arg1, sizeof(tcg_target_long) * 8 - 16, SHIFT_SLL);
/* sra arg1, 16/48, arg1 */
tcg_out_arithi(s, arg1, arg1, sizeof(tcg_target_long) * 8 - 16,
SHIFT_SRA);
break;
case 2 | 4:
/* sll i0, 32, i0 */
tcg_out_arithi(s, TCG_REG_I0, TCG_REG_I0, 32, SHIFT_SLL);
/* sra i0, 32, data_reg */
tcg_out_arithi(s, data_reg, TCG_REG_I0, 32, SHIFT_SRA);
/* sll data_reg, 32, arg1 */
tcg_out_arithi(s, data_reg, arg1, 32, SHIFT_SLL);
/* sra arg1, 32, arg1 */
tcg_out_arithi(s, arg1, arg1, 32, SHIFT_SRA);
break;
case 0:
case 1:
@ -736,31 +780,40 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
case 3:
default:
/* mov */
tcg_out_mov(s, data_reg, TCG_REG_I0);
tcg_out_mov(s, arg1, data_reg);
break;
}
/* mov */
tcg_out_mov(s, arg0, addr_reg);
/* XXX: move that code at the end of the TB */
/* qemu_st_helper[s_bits](arg0, arg1, arg2) */
tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_st_helpers[s_bits]
- (tcg_target_ulong)s->code_ptr) >> 2)
& 0x3fffffff));
/* mov (delay slot)*/
tcg_out_movi(s, TCG_TYPE_I32, r1, mem_index);
/* mov (delay slot) */
tcg_out_movi(s, TCG_TYPE_I32, arg2, mem_index);
/* will become:
ba label2 */
label2_ptr = s->code_ptr;
label2_ptr = (uint32_t *)s->code_ptr;
tcg_out32(s, 0);
/* nop (delay slot) */
tcg_out_nop(s);
/* label1: */
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) |
INSN_OFF22((unsigned long)label1_ptr -
(unsigned long)s->code_ptr));
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x2) |
INSN_OFF22((unsigned long)s->code_ptr -
(unsigned long)label1_ptr));
/* ld [r1 + x], r1 */
tcg_out_ldst(s, r1, r1, offsetof(CPUTLBEntry, addend) -
offsetof(CPUTLBEntry, addr_write), ld_op);
/* add x(r1), r0 */
tcg_out_arith(s, r0, r1, r0, ARITH_ADD);
tcg_out_ldst(s, arg1, r1, offsetof(CPUTLBEntry, addend) -
offsetof(CPUTLBEntry, addr_write), host_ld_op);
/* add r0, r1, r0 */
tcg_out_arith(s, r0, arg1, r0, ARITH_ADD);
#else
r0 = addr_reg;
#endif
@ -804,8 +857,8 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
#if defined(CONFIG_SOFTMMU)
/* label2: */
*label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) |
INSN_OFF22((unsigned long)label2_ptr -
(unsigned long)s->code_ptr));
INSN_OFF22((unsigned long)s->code_ptr -
(unsigned long)label2_ptr));
#endif
}

4
tcg/sparc/tcg-target.h
View File

@ -75,11 +75,11 @@ enum {
#define TCG_REG_CALL_STACK TCG_REG_I6
#ifdef __arch64__
// Reserve space for AREG0
#define TCG_TARGET_STACK_MINFRAME (176 + 2 * sizeof(long))
#define TCG_TARGET_STACK_MINFRAME (176 + 2 * (int)sizeof(long))
#define TCG_TARGET_CALL_STACK_OFFSET (2047 + TCG_TARGET_STACK_MINFRAME)
#define TCG_TARGET_STACK_ALIGN 16
#else
#define TCG_TARGET_STACK_MINFRAME (92 + 2 * sizeof(long))
#define TCG_TARGET_STACK_MINFRAME (92 + 2 * (int)sizeof(long))
#define TCG_TARGET_CALL_STACK_OFFSET TCG_TARGET_STACK_MINFRAME
#define TCG_TARGET_STACK_ALIGN 8
#endif