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Aarch64 back-end (incomplete)

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This commit is contained in:
Dmitry Stogov 2022-06-03 12:47:02 +03:00
parent c28fe2734d
commit 054a70012e
3 changed files with 68 additions and 37 deletions
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4
Makefile
View File

@ -1,6 +1,6 @@
CC = gcc
#CFLAGS = -O2 -g -Wall -Wno-array-bounds -DIR_TARGET_X64 -DIR_DEBUG_REGSET
CFLAGS = -O0 -g -Wall -DIR_DEBUG -DIR_TARGET_X64
CFLAGS = -O2 -g -Wall -Wno-array-bounds -DIR_TARGET_X64 -DIR_DEBUG_REGSET
#CFLAGS = -O0 -g -Wall -DIR_DEBUG -DIR_TARGET_X64
LDFLAGS = -lm
PHP = php
LLK = /home/dmitry/php/llk/llk.php

98
ir_aarch64.dasc
View File

@ -1087,22 +1087,18 @@ static void ir_emit_load_mem_int(ir_ctx *ctx, ir_type type, ir_reg reg, ir_reg b
| ldr Rx(reg), [Rx(base_reg), #offset]
break;
case 4:
if (IR_IS_TYPE_SIGNED(type)) {
| ldrsw Rx(reg), [Rx(base_reg), #offset]
} else {
| ldr Rw(reg), [Rx(base_reg), #offset]
}
| ldr Rw(reg), [Rx(base_reg), #offset]
break;
case 2:
if (IR_IS_TYPE_SIGNED(type)) {
| ldrsh Rx(reg), [Rx(base_reg), #offset]
| ldrsh Rw(reg), [Rx(base_reg), #offset]
} else {
| ldrh Rw(reg), [Rx(base_reg), #offset]
}
break;
case 1:
if (IR_IS_TYPE_SIGNED(type)) {
| ldrsb Rx(reg), [Rx(base_reg), #offset]
| ldrsb Rw(reg), [Rx(base_reg), #offset]
} else {
| ldrb Rw(reg), [Rx(base_reg), #offset]
}
@ -1117,22 +1113,18 @@ static void ir_emit_load_mem_int(ir_ctx *ctx, ir_type type, ir_reg reg, ir_reg b
| ldr Rx(reg), [Rx(base_reg), Rx(reg)]
break;
case 4:
if (IR_IS_TYPE_SIGNED(type)) {
| ldrsw Rx(reg), [Rx(base_reg), Rx(reg)]
} else {
| ldr Rw(reg), [Rx(base_reg), Rx(reg)]
}
| ldr Rw(reg), [Rx(base_reg), Rx(reg)]
break;
case 2:
if (IR_IS_TYPE_SIGNED(type)) {
| ldrsh Rx(reg), [Rx(base_reg), Rx(reg)]
| ldrsh Rw(reg), [Rx(base_reg), Rx(reg)]
} else {
| ldrh Rw(reg), [Rx(base_reg), Rx(reg)]
}
break;
case 1:
if (IR_IS_TYPE_SIGNED(type)) {
| ldrsb Rx(reg), [Rx(base_reg), Rx(reg)]
| ldrsb Rw(reg), [Rx(base_reg), Rx(reg)]
} else {
| ldrb Rw(reg), [Rx(base_reg), Rx(reg)]
}
@ -1366,24 +1358,45 @@ static void ir_emit_prologue(ir_ctx *ctx)
if (data->used_preserved_regs) {
int offset;
uint32_t i;
ir_reg prev = IR_REG_NONE;
ir_reg fp = (ctx->flags & IR_USE_FRAME_POINTER) ? IR_REG_FRAME_POINTER : IR_REG_STACK_POINTER;
if (ctx->flags & IR_USE_FRAME_POINTER) {
offset = 0;
offset = data->ra_data.stack_frame_size + sizeof(void*) * 2;
} else {
offset = data->ra_data.stack_frame_size + data->call_stack_size;
}
for (i = 0; i < IR_REG_NUM; i++) {
if (IR_REGSET_IN(data->used_preserved_regs, i)) {
if (i < IR_REG_FP_FIRST) {
ir_reg fp = (ctx->flags & IR_USE_FRAME_POINTER) ? IR_REG_FRAME_POINTER : IR_REG_STACK_POINTER;
offset -= sizeof(void*);
//??? | mov aword [Ra(fp)+offset], Ra(i)
if (prev == IR_REG_NONE) {
prev = i;
} else if (i < IR_REG_FP_FIRST) {
offset -= sizeof(void*) * 2;
| stp Rx(prev), Rx(i), [Rx(fp), #offset]
prev = IR_REG_NONE;
} else {
IR_ASSERT(0 && "NIY FP register saing");
if (prev < IR_REG_FP_FIRST) {
offset -= sizeof(void*);
| str Rx(prev), [Rx(fp), #offset]
offset -= sizeof(void*);
| str Rd(i-IR_REG_FP_FIRST), [Rx(fp), #offset]
} else {
offset -= sizeof(void*) * 2;
| stp Rd(prev-IR_REG_FP_FIRST), Rd(i-IR_REG_FP_FIRST), [Rx(fp), #offset]
}
prev = IR_REG_NONE;
}
}
}
if (prev != IR_REG_NONE) {
if (prev < IR_REG_FP_FIRST) {
offset -= sizeof(void*);
| str Rx(prev), [Rx(fp), #offset]
} else {
offset -= sizeof(void*);
| str Rd(prev-IR_REG_FP_FIRST), [Rx(fp), #offset]
}
}
}
}
@ -1395,24 +1408,45 @@ static void ir_emit_epilogue(ir_ctx *ctx)
if (data->used_preserved_regs) {
int offset;
uint32_t i;
ir_reg prev = IR_REG_NONE;
ir_reg fp = (ctx->flags & IR_USE_FRAME_POINTER) ? IR_REG_FRAME_POINTER : IR_REG_STACK_POINTER;
if (ctx->flags & IR_USE_FRAME_POINTER) {
offset = 0;
offset = data->ra_data.stack_frame_size + sizeof(void*) * 2;
} else {
offset = data->ra_data.stack_frame_size + data->call_stack_size;
}
for (i = 0; i < IR_REG_NUM; i++) {
if (IR_REGSET_IN(data->used_preserved_regs, i)) {
if (i < IR_REG_FP_FIRST) {
ir_reg fp = (ctx->flags & IR_USE_FRAME_POINTER) ? IR_REG_FRAME_POINTER : IR_REG_STACK_POINTER;
offset -= sizeof(void*);
//??? | mov Ra(i), aword [Ra(fp)+offset]
if (prev == IR_REG_NONE) {
prev = i;
} else if (i < IR_REG_FP_FIRST) {
offset -= sizeof(void*) * 2;
| ldp Rx(prev), Rx(i), [Rx(fp), #offset]
prev = IR_REG_NONE;
} else {
IR_ASSERT(0 && "NIY FP register saing");
if (prev < IR_REG_FP_FIRST) {
offset -= sizeof(void*);
| ldr Rx(prev), [Rx(fp), #offset]
offset -= sizeof(void*);
| ldr Rd(i-IR_REG_FP_FIRST), [Rx(fp), #offset]
} else {
offset -= sizeof(void*) * 2;
| ldp Rd(prev-IR_REG_FP_FIRST), Rd(i-IR_REG_FP_FIRST), [Rx(fp), #offset]
}
prev = IR_REG_NONE;
}
}
}
if (prev != IR_REG_NONE) {
if (prev < IR_REG_FP_FIRST) {
offset -= sizeof(void*);
| ldr Rx(prev), [Rx(fp), #offset]
} else {
offset -= sizeof(void*);
| ldr Rd(prev-IR_REG_FP_FIRST), [Rx(fp), #offset]
}
}
}
if (ctx->flags & IR_USE_FRAME_POINTER) {
@ -3650,7 +3684,6 @@ static void ir_emit_ijmp(ir_ctx *ctx, ir_ref def, ir_insn *insn)
static int ir_emit_dessa_move(ir_ctx *ctx, uint8_t type, ir_ref from, ir_ref to)
{
ir_backend_data *data = ctx->data;
dasm_State **Dst = &data->dasm_state;
uint32_t from_block = data->dessa_from_block;
ir_block *from_bb = &ctx->cfg_blocks[from_block];
ir_ref ref = from_bb->end;
@ -3704,10 +3737,6 @@ static int ir_emit_dessa_move(ir_ctx *ctx, uint8_t type, ir_ref from, ir_ref to)
ir_emit_load(ctx, type, to_reg, from);
} else if (from_reg != IR_REG_NONE) {
ir_emit_store(ctx, type, to, from_reg);
//??? } else if (IR_IS_CONST_REF(from) && (ir_type_size[type] != 8 || IR_IS_SIGNED_32BIT(ctx->ir_base[from].val.i64))) {
//??? | ASM_MREF_IMM_OP mov, type, to, ctx->ir_base[from].val.i32
//??? } else if (IR_IS_CONST_REF(from) && ir_type_size[type] == 8 && IR_IS_UNSIGNED_32BIT(ctx->ir_base[from].val.u64)) {
//??? | mov Rd(to), ctx->ir_base[from].val.u32
} else if (IR_IS_CONST_REF(from) || !ir_is_same_mem(ctx, from, to)) {
from_reg = ctx->regs[ref][1]; /* temporary register for int mem->mem (see ir_fix_dessa_tmps) */
IR_ASSERT(from_reg != IR_REG_NONE);
@ -4553,7 +4582,8 @@ void *ir_emit_code(ir_ctx *ctx, size_t *size)
ret = dasm_link(&data.dasm_state, size);
if (ret != DASM_S_OK) {
return 0;
IR_ASSERT(0);
return NULL;
}
entry = ir_mem_mmap(4096);

3
ir_x86.dasc
View File

@ -6606,7 +6606,8 @@ void *ir_emit_code(ir_ctx *ctx, size_t *size)
ret = dasm_link(&data.dasm_state, size);
if (ret != DASM_S_OK) {
return 0;
IR_ASSERT(0);
return NULL;
}
entry = ir_mem_mmap(4096);