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ir/ir_emit_llvm.c

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/*
* IR - Lightweight JIT Compilation Framework
* (LLVM code generator)
* Copyright (C) 2022 Zend by Perforce.
* Authors: Dmitry Stogov <dmitry@php.net>
*/
#include "ir.h"
#include "ir_private.h"
#include <math.h>
#define IR_I1 IR_BOOL
#define IR_F64 IR_DOUBLE
#define IR_F32 IR_FLOAT
#define IR_PTR IR_ADDR
#define IR_I8B (IR_LAST_TYPE + 0)
#define IR_I16B (IR_LAST_TYPE + 1)
#define IR_I32B (IR_LAST_TYPE + 2)
#define IR_I64B (IR_LAST_TYPE + 3)
#define IR_F64I (IR_LAST_TYPE + 4)
#define IR_F32I (IR_LAST_TYPE + 5)
#define IR_LAST_LLVM_TYPE (IR_LAST_TYPE + 6)
static const char *ir_type_llvm_name[IR_LAST_LLVM_TYPE] = {
"void", // IR_VOID
"i1", // IR_BOOL
"i8", // IR_U8
"i16", // IR_U16
"i32", // IR_U32
"i64", // IR_U63
"ptr", // IR_ADDR
"i8", // IR_CHAR
"i8", // IR_I8
"i16", // IR_I16
"i32", // IR_I32
"i64", // IR_I64
"double", // IR_DOUBLE
"float", // IR_FLOAT
"{i8, i1}", // IR_I8B
"{i16, i1}", // IR_I16B
"{i32, i1}", // IR_I32B
"{i64, i1}", // IR_I64B
"{double, i32}", // IR_F64I
"{float, i32}", // IR_F32I
};
#ifdef IR_64
# define IR_LLVM_MEMSET_NAME "llvm.memset.p0.i64"
# define IR_LLVM_MEMCPY_NAME "llvm.memcpy.p0.p0.i64"
# define IR_LLVM_MEMMOVE_NAME "llvm.memmove.p0.p0.i64"
#else
# define IR_LLVM_MEMSET_NAME "llvm.memset.p0.i32"
# define IR_LLVM_MEMCPY_NAME "llvm.memcpy.p0.p0.i32"
# define IR_LLVM_MEMMOVE_NAME "llvm.memmove.p0.p0.i32"
#endif
#define IR_BUILTINS(_) \
_("ceil", CEIL_F64) \
_("ceilf", CEIL_F32) \
_("copysign", COPYSIGN_F64) \
_("copysignf", COPYSIGN_F32) \
_("cos", COS_F64) \
_("cosf", COS_F32) \
_("exp", EXP_F64) \
_("exp10", EXP10_F64) \
_("exp10f", EXP10_F32) \
_("exp2", EXP2_F64) \
_("exp2f", EXP2_F32) \
_("expf", EXP_F32) \
_("floor", FLOOR_F64) \
_("floorf", FLOOR_F32) \
_("frexp", FREXP_F64) \
_("frexpf", FREXP_F32) \
_("ldexp", LDEXP_F64) \
_("ldexpf", LDEXP_F32) \
_("log", LOG_F64) \
_("log10", LOG10_F64) \
_("log10f", LOG10_F32) \
_("log2", LOG2_F64) \
_("log2f", LOG2_F32) \
_("logf", LOG_F32) \
_("memcpy", MEMCPY) \
_("memmove", MEMMOVE) \
_("memset", MEMSET) \
_("pow", POW_F64) \
_("powf", POW_F32) \
_("round", ROUND_F64) \
_("roundf", ROUND_F32) \
_("sin", SIN_F64) \
_("sinf", SIN_F32) \
_("sqrt", SQRT_F64) \
_("sqrtf", SQRT_F32) \
_("trunc", TRUNC_F64) \
_("truncf", TRUNC_F32) \
#define IR_LLVM_INTRINSICS(_) \
_(MEMSET, IR_LLVM_MEMSET_NAME, VOID, 4, PTR, I8, SSIZE_T, I1) \
_(MEMCPY, IR_LLVM_MEMCPY_NAME, VOID, 4, PTR, PTR, SSIZE_T, I1) \
_(MEMMOVE, IR_LLVM_MEMMOVE_NAME, VOID, 4, PTR, PTR, SSIZE_T, I1) \
_(FRAMEADDRESS, "llvm.frameaddress.p0", PTR, 1, I32, ___, ___, ___) \
_(VA_START, "llvm.va_start", VOID, 1, PTR, ___, ___, ___) \
_(VA_END, "llvm.va_end", VOID, 1, PTR, ___, ___, ___) \
_(VA_COPY, "llvm.va_copy", VOID, 2, PTR, PTR, ___, ___) \
_(DEBUGTRAP, "llvm.debugtrap", VOID, 0, ___, ___, ___, ___) \
_(SADD_OV_I8, "llvm.sadd.with.overflow.i8", I8B, 2, I8, I8, ___, ___) \
_(SADD_OV_I16, "llvm.sadd.with.overflow.i16", I16B, 2, I16, I16, ___, ___) \
_(SADD_OV_I32, "llvm.sadd.with.overflow.i32", I32B, 2, I32, I32, ___, ___) \
_(SADD_OV_I64, "llvm.sadd.with.overflow.i64", I64B, 2, I64, I64, ___, ___) \
_(UADD_OV_I8, "llvm.uadd.with.overflow.i8", I8B, 2, I8, I8, ___, ___) \
_(UADD_OV_I16, "llvm.uadd.with.overflow.i16", I16B, 2, I16, I16, ___, ___) \
_(UADD_OV_I32, "llvm.uadd.with.overflow.i32", I32B, 2, I32, I32, ___, ___) \
_(UADD_OV_I64, "llvm.uadd.with.overflow.i64", I64B, 2, I64, I64, ___, ___) \
_(SSUB_OV_I8, "llvm.ssub.with.overflow.i8", I8B, 2, I8, I8, ___, ___) \
_(SSUB_OV_I16, "llvm.ssub.with.overflow.i16", I16B, 2, I16, I16, ___, ___) \
_(SSUB_OV_I32, "llvm.ssub.with.overflow.i32", I32B, 2, I32, I32, ___, ___) \
_(USUB_OV_I8, "llvm.usub.with.overflow.i8", I8B, 2, I8, I8, ___, ___) \
_(USUB_OV_I16, "llvm.usub.with.overflow.i16", I16B, 2, I16, I16, ___, ___) \
_(USUB_OV_I32, "llvm.usub.with.overflow.i32", I32B, 2, I32, I32, ___, ___) \
_(USUB_OV_I64, "llvm.usub.with.overflow.i64", I64B, 2, I64, I64, ___, ___) \
_(SSUB_OV_I64, "llvm.ssub.with.overflow.i64", I64B, 2, I64, I64, ___, ___) \
_(SMUL_OV_I8, "llvm.smul.with.overflow.i8", I8B, 2, I8, I8, ___, ___) \
_(SMUL_OV_I16, "llvm.smul.with.overflow.i16", I16B, 2, I16, I16, ___, ___) \
_(SMUL_OV_I32, "llvm.smul.with.overflow.i32", I32B, 2, I32, I32, ___, ___) \
_(SMUL_OV_I64, "llvm.smul.with.overflow.i64", I64B, 2, I64, I64, ___, ___) \
_(UMUL_OV_I8, "llvm.umul.with.overflow.i8", I8B, 2, I8, I8, ___, ___) \
_(UMUL_OV_I16, "llvm.umul.with.overflow.i16", I16B, 2, I16, I16, ___, ___) \
_(UMUL_OV_I32, "llvm.umul.with.overflow.i32", I32B, 2, I32, I32, ___, ___) \
_(UMUL_OV_I64, "llvm.umul.with.overflow.i64", I64B, 2, I64, I64, ___, ___) \
_(FSHL_I8, "llvm.fshl.i8", I8, 3, I8, I8, I8, ___) \
_(FSHL_I16, "llvm.fshl.i16", I16, 3, I16, I16, I16, ___) \
_(FSHL_I32, "llvm.fshl.i32", I32, 3, I32, I32, I32, ___) \
_(FSHL_I64, "llvm.fshl.i64", I64, 3, I64, I64, I64, ___) \
_(FSHR_I8, "llvm.fshr.i8", I8, 3, I8, I8, I8, ___) \
_(FSHR_I16, "llvm.fshr.i16", I16, 3, I16, I16, I16, ___) \
_(FSHR_I32, "llvm.fshr.i32", I32, 3, I32, I32, I32, ___) \
_(FSHR_I64, "llvm.fshr.i64", I64, 3, I64, I64, I64, ___) \
_(BSWAP_I16, "llvm.bswap.i16", I16, 1, I16, ___, ___, ___) \
_(BSWAP_I32, "llvm.bswap.i32", I32, 1, I32, ___, ___, ___) \
_(BSWAP_I64, "llvm.bswap.i64", I64, 1, I64, ___, ___, ___) \
_(CTPOP_I8, "llvm.ctpop.i8", I8, 1, I8, ___, ___, ___) \
_(CTPOP_I16, "llvm.ctpop.i16", I16, 1, I16, ___, ___, ___) \
_(CTPOP_I32, "llvm.ctpop.i32", I32, 1, I32, ___, ___, ___) \
_(CTPOP_I64, "llvm.ctpop.i64", I64, 1, I64, ___, ___, ___) \
_(CTLZ_I8, "llvm.ctlz.i8", I8, 2, I8, I1, ___, ___) \
_(CTLZ_I16, "llvm.ctlz.i16", I16, 2, I16, I1, ___, ___) \
_(CTLZ_I32, "llvm.ctlz.i32", I32, 2, I32, I1, ___, ___) \
_(CTLZ_I64, "llvm.ctlz.i64", I64, 2, I64, I1, ___, ___) \
_(CTTZ_I8, "llvm.cttz.i8", I8, 2, I8, I1, ___, ___) \
_(CTTZ_I16, "llvm.cttz.i16", I16, 2, I16, I1, ___, ___) \
_(CTTZ_I32, "llvm.cttz.i32", I32, 2, I32, I1, ___, ___) \
_(CTTZ_I64, "llvm.cttz.i64", I64, 2, I64, I1, ___, ___) \
_(SMIN_I8, "llvm.smin.i8", I8, 2, I8, I8, ___, ___) \
_(SMIN_I16, "llvm.smin.i16", I16, 2, I16, I16, ___, ___) \
_(SMIN_I32, "llvm.smin.i32", I32, 2, I32, I32, ___, ___) \
_(SMIN_I64, "llvm.smin.i64", I64, 2, I64, I64, ___, ___) \
_(UMIN_I8, "llvm.umin.i8", I8, 2, I8, I8, ___, ___) \
_(UMIN_I16, "llvm.umin.i16", I16, 2, I16, I16, ___, ___) \
_(UMIN_I32, "llvm.umin.i32", I32, 2, I32, I32, ___, ___) \
_(UMIN_I64, "llvm.umin.i64", I64, 2, I64, I64, ___, ___) \
_(MINNUM_F64, "llvm.minnum.f64", F64, 2, F64, F64, ___, ___) \
_(MINNUM_F32, "llvm.minnum.f32", F32, 2, F32, F32, ___, ___) \
_(SMAX_I8, "llvm.smax.i8", I8, 2, I8, I8, ___, ___) \
_(SMAX_I16, "llvm.smax.i16", I16, 2, I16, I16, ___, ___) \
_(SMAX_I32, "llvm.smax.i32", I32, 2, I32, I32, ___, ___) \
_(SMAX_I64, "llvm.smax.i64", I64, 2, I64, I64, ___, ___) \
_(UMAX_I8, "llvm.umax.i8", I8, 2, I8, I8, ___, ___) \
_(UMAX_I16, "llvm.umax.i16", I16, 2, I16, I16, ___, ___) \
_(UMAX_I32, "llvm.umax.i32", I32, 2, I32, I32, ___, ___) \
_(UMAX_I64, "llvm.umax.i64", I64, 2, I64, I64, ___, ___) \
_(MAXNUM_F64, "llvm.maxnum.f64", F64, 2, F64, F64, ___, ___) \
_(MAXNUM_F32, "llvm.maxnum.f32", F32, 2, F32, F32, ___, ___) \
_(ABS_I8, "llvm.abs.i8", I8, 2, I8, I1, ___, ___) \
_(ABS_I16, "llvm.abs.i16", I16, 2, I16, I1, ___, ___) \
_(ABS_I32, "llvm.abs.i32", I32, 2, I32, I1, ___, ___) \
_(ABS_I64, "llvm.abs.i64", I64, 2, I64, I1, ___, ___) \
_(FABS_F64, "llvm.fabs.f64", F64, 1, F64, ___, ___, ___) \
_(FABS_F32, "llvm.fabs.f32", F32, 1, F32, ___, ___, ___) \
_(SQRT_F64, "llvm.sqrt.f64", F64, 1, F64, ___, ___, ___) \
_(SQRT_F32, "llvm.sqrt.f32", F32, 1, F32, ___, ___, ___) \
_(SIN_F64, "llvm.sin.f64", F64, 1, F64, ___, ___, ___) \
_(SIN_F32, "llvm.sin.f32", F32, 1, F32, ___, ___, ___) \
_(COS_F64, "llvm.cos.f64", F64, 1, F64, ___, ___, ___) \
_(COS_F32, "llvm.cos.f32", F32, 1, F32, ___, ___, ___) \
_(POW_F64, "llvm.pow.f64", F64, 2, F64, F64, ___, ___) \
_(POW_F32, "llvm.pow.f32", F32, 2, F32, F32, ___, ___) \
_(EXP_F64, "llvm.exp.f64", F64, 1, F64, ___, ___, ___) \
_(EXP_F32, "llvm.exp.f32", F32, 1, F32, ___, ___, ___) \
_(EXP2_F64, "llvm.exp2.f64", F64, 1, F64, ___, ___, ___) \
_(EXP2_F32, "llvm.exp2.f32", F32, 1, F32, ___, ___, ___) \
_(EXP10_F64, "llvm.exp10.f64", F64, 1, F64, ___, ___, ___) \
_(EXP10_F32, "llvm.exp10.f32", F32, 1, F32, ___, ___, ___) \
_(LDEXP_F64, "llvm.ldexp.f64.i32", F64, 2, F64, I32, ___, ___) \
_(LDEXP_F32, "llvm.ldexp.f32.i32", F32, 2, F32, I32, ___, ___) \
_(LOG_F64, "llvm.log.f64", F64, 1, F64, ___, ___, ___) \
_(LOG_F32, "llvm.log.f32", F32, 1, F32, ___, ___, ___) \
_(LOG2_F64, "llvm.log2.f64", F64, 1, F64, ___, ___, ___) \
_(LOG2_F32, "llvm.log2.f32", F32, 1, F32, ___, ___, ___) \
_(LOG10_F64, "llvm.log10.f64", F64, 1, F64, ___, ___, ___) \
_(LOG10_F32, "llvm.log10.f32", F32, 1, F32, ___, ___, ___) \
_(COPYSIGN_F64, "llvm.copysign.f64", F32, 2, F32, F32, ___, ___) \
_(COPYSIGN_F32, "llvm.copysign.f32", F64, 2, F64, F64, ___, ___) \
_(FLOOR_F64, "llvm.floor.f64", F64, 1, F64, ___, ___, ___) \
_(FLOOR_F32, "llvm.floor.f32", F32, 1, F32, ___, ___, ___) \
_(CEIL_F64, "llvm.ceil.f64", F64, 1, F64, ___, ___, ___) \
_(CEIL_F32, "llvm.ceil.f32", F32, 1, F32, ___, ___, ___) \
_(TRUNC_F64, "llvm.trunc.f64", F64, 1, F64, ___, ___, ___) \
_(TRUNC_F32, "llvm.trunc.f32", F32, 1, F32, ___, ___, ___) \
_(ROUND_F64, "llvm.round.f64", F64, 1, F64, ___, ___, ___) \
_(ROUND_F32, "llvm.round.f32", F32, 1, F32, ___, ___, ___) \
_(FREXP_F64, "llvm.frexp.f64", F64I, 1, F64, ___, ___, ___) \
_(FREXP_F32, "llvm.frexp.f32", F32I, 1, F32, ___, ___, ___) \
#define IR____ 0
#define IR_LLVM_INTRINSIC_ID(id, name, ret, num, arg1, arg2, arg3, arg4) \
IR_LLVM_INTR_ ## id,
#define IR_LLVM_INTRINSIC_DESC(id, name, ret, num, arg1, arg2, arg3, arg4) \
{name, IR_ ## ret, num, {IR_ ## arg1, IR_ ## arg2, IR_ ## arg3, IR_ ## arg4}},
typedef enum _ir_llvm_intrinsic_id {
IR_LLVM_INTRINSICS(IR_LLVM_INTRINSIC_ID)
IR_LLVM_INTR_LAST
} ir_llvm_intrinsic_id;
#define IR_LLVM_INTRINSIC_BITSET_LEN ((IR_LLVM_INTR_LAST + (IR_BITSET_BITS - 1)) / IR_BITSET_BITS)
static const struct {
const char *name;
uint8_t ret_type;
uint8_t params_count;
uint8_t param_types[4];
} ir_llvm_intrinsic_desc[] = {
IR_LLVM_INTRINSICS(IR_LLVM_INTRINSIC_DESC)
};
#define IR_LLVM_BUILTIN_DESC(name, id) \
{name, IR_LLVM_INTR_ ## id},
static const struct {
const char *name;
ir_llvm_intrinsic_id id;
} ir_llvm_builtin_map[] = {
IR_BUILTINS(IR_LLVM_BUILTIN_DESC)
};
static void ir_emit_ref(ir_ctx *ctx, FILE *f, ir_ref ref)
{
if (IR_IS_CONST_REF(ref)) {
ir_insn *insn = &ctx->ir_base[ref];
if (insn->op == IR_FUNC || insn->op == IR_SYM) {
fprintf(f, "@%s", ir_get_str(ctx, insn->val.name));
} else if (insn->op == IR_STR) {
fprintf(f, "@.str%d", -ref);
} else if (insn->op == IR_ADDR) {
if (insn->val.addr == 0) {
fprintf(f, "null");
} else if (insn->op == IR_ADDR) {
fprintf(f, "u0x%" PRIxPTR, insn->val.addr);
// fprintf(f, "inttoptr(i64 u0x%" PRIxPTR " to ptr)", insn->val.addr);
}
} else if (IR_IS_TYPE_FP(insn->type)) {
if (insn->type == IR_DOUBLE) {
double d = insn->val.d;
if (isnan(d)) {
fprintf(f, "nan");
} else if (d == 0.0) {
fprintf(f, "0.0");
} else {
double e = log10(d);
if (e < -4 || e >= 6) {
fprintf(f, "%e", d);
} else if (round(d) == d) {
fprintf(f, "%.0f.0", d);
} else {
fprintf(f, "%g", d);
}
}
} else {
IR_ASSERT(insn->type == IR_FLOAT);
double d = insn->val.f;
if (isnan(d)) {
fprintf(f, "nan");
} else if (d == 0.0) {
fprintf(f, "0.0");
} else {
double e = log10(d);
if (e < -4 || e >= 6) {
fprintf(f, "%e", d);
} else if (round(d) == d) {
fprintf(f, "%.0f.0", d);
} else {
fprintf(f, "%g", d);
}
}
}
} else {
ir_print_const(ctx, &ctx->ir_base[ref], f, true);
}
} else {
fprintf(f, "%%d%d", ref);
}
}
static void ir_emit_def_ref(ir_ctx *ctx, FILE *f, ir_ref def)
{
fprintf(f, "\t%%d%d = ", def);
}
static void ir_emit_phi(ir_ctx *ctx, FILE *f, int def, ir_insn *insn, ir_block *bb)
{
bool first = 1;
uint32_t j, n, *p;
ir_emit_def_ref(ctx, f, def);
fprintf(f, "phi %s ", ir_type_llvm_name[insn->type]);
n = insn->inputs_count;
p = ctx->cfg_edges + bb->predecessors;
for (j = 2; j <= n; j++) {
if (first) {
first = 0;
} else {
fprintf(f, ", ");
}
fprintf(f, "[");
ir_emit_ref(ctx, f, ir_insn_op(insn, j));
fprintf(f, ", %%l%d", *p);
p++;
fprintf(f, "]");
}
fprintf(f, "\n");
}
static void ir_emit_unary_neg(ir_ctx *ctx, FILE *f, int def, ir_insn *insn)
{
ir_type type = insn->type;
ir_emit_def_ref(ctx, f, def);
if (IR_IS_TYPE_FP(type)) {
fprintf(f, "fneg %s ", ir_type_llvm_name[type]);
} else {
fprintf(f, "sub %s 0, ", ir_type_llvm_name[type]);
}
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, "\n");
}
static void ir_emit_unary_not(ir_ctx *ctx, FILE *f, int def, ir_insn *insn)
{
ir_type type = ctx->ir_base[insn->op1].type;
ir_emit_def_ref(ctx, f, def);
if (insn->type == IR_BOOL) {
if (IR_IS_TYPE_FP(type)) {
fprintf(f, "fcmp oeq %s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", 0.0\n");
} else {
fprintf(f, "icmp eq %s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", 0\n");
}
} else {
IR_ASSERT(IR_IS_TYPE_INT(type) && type == insn->type);
fprintf(f, "xor %s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", -1\n");
}
}
static void ir_emit_binary_op(ir_ctx *ctx, FILE *f, int def, ir_insn *insn, const char *op, const char *uop, const char *fop)
{
ir_type type = ctx->ir_base[insn->op1].type;
if (insn->type == IR_ADDR) {
type = sizeof(void*) == 8 ? IR_U64 : IR_U32;
if (!IR_IS_CONST_REF(insn->op1) && ctx->ir_base[insn->op1].type != IR_I64 && ctx->ir_base[insn->op1].type != IR_U64) {
fprintf(f, "\t%%t%d_1 = ptrtoint ptr ", def);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, " to i64\n");
}
if (!IR_IS_CONST_REF(insn->op2) && ctx->ir_base[insn->op2].type != IR_I64 && ctx->ir_base[insn->op2].type != IR_U64) {
fprintf(f, "\t%%t%d_2 = ptrtoint ptr ", def);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, " to i64\n");
}
fprintf(f, "\t%%t%d = %s %s ", def, uop ? uop : op, ir_type_llvm_name[type]);
if (IR_IS_CONST_REF(insn->op1)) {
fprintf(f, "%" PRIu64 ", ", ctx->ir_base[insn->op1].val.u64);
} else if (ctx->ir_base[insn->op1].type == IR_I64 || ctx->ir_base[insn->op1].type == IR_U64) {
fprintf(f, "%%d%d, ", insn->op1);
} else {
fprintf(f, "%%t%d_1, ", def);
}
if (IR_IS_CONST_REF(insn->op2)) {
fprintf(f, "%" PRIu64 "\n", ctx->ir_base[insn->op2].val.u64);
} else if (ctx->ir_base[insn->op2].type == IR_I64 || ctx->ir_base[insn->op2].type == IR_U64) {
fprintf(f, "%%d%d\n", insn->op2);
} else {
fprintf(f, "%%t%d_2\n", def);
}
fprintf(f, "\t%%d%d = inttoptr i64 %%t%d to ptr\n", def, def);
return;
}
ir_emit_def_ref(ctx, f, def);
if (fop && IR_IS_TYPE_FP(type)) {
fprintf(f, "%s ", fop);
} else {
IR_ASSERT(IR_IS_TYPE_INT(type));
if (uop && IR_IS_TYPE_UNSIGNED(type)) {
fprintf(f, "%s ", uop);
} else {
fprintf(f, "%s ", op);
}
}
fprintf(f, "%s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", ");
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, "\n");
}
static void ir_emit_binary_overflow_op(ir_ctx *ctx, FILE *f, int def, ir_insn *insn,
ir_llvm_intrinsic_id id, ir_bitset used_intrinsics)
{
ir_type type = insn->type;
IR_ASSERT(IR_IS_TYPE_INT(type));
if (IR_IS_TYPE_UNSIGNED(type)) id += 4;
switch (ir_type_size[type]) {
case 1: break;
case 2: id += 1; break;
case 4: id += 2; break;
case 8: id += 3; break;
}
ir_bitset_incl(used_intrinsics, id);
fprintf(f, "\t%%t%d = call {%s, i1} @%s(%s ", def, ir_type_llvm_name[type],
ir_llvm_intrinsic_desc[id].name, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", %s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ")\n");
ir_emit_def_ref(ctx, f, def);
fprintf(f, "extractvalue {%s, i1} %%t%d, 0\n", ir_type_llvm_name[type], def);
}
static void ir_emit_rol_ror(ir_ctx *ctx, FILE *f, int def, ir_insn *insn,
ir_llvm_intrinsic_id id, ir_bitset used_intrinsics)
{
ir_type type = ctx->ir_base[insn->op1].type;
switch (ir_type_size[type]) {
case 1: break;
case 2: id += 1; break;
case 4: id += 2; break;
case 8: id += 3; break;
}
ir_bitset_incl(used_intrinsics, id);
ir_emit_def_ref(ctx, f, def);
fprintf(f, "call %s @%s(%s ",
ir_type_llvm_name[type], ir_llvm_intrinsic_desc[id].name, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", %s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", %s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ")\n");
}
static void ir_emit_bitop(ir_ctx *ctx, FILE *f, int def, ir_insn *insn, ir_llvm_intrinsic_id id,
bool poison, ir_bitset used_intrinsics)
{
ir_type type = insn->type;
if (id == IR_LLVM_INTR_BSWAP_I16) {
id -= 1;
}
switch (ir_type_size[type]) {
case 1: break;
case 2: id += 1; break;
case 4: id += 2; break;
case 8: id += 3; break;
}
ir_bitset_incl(used_intrinsics, id);
ir_emit_def_ref(ctx, f, def);
fprintf(f, "call %s @%s(%s ",
ir_type_llvm_name[type], ir_llvm_intrinsic_desc[id].name, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
if (poison) {
fprintf(f, ", 0");
}
fprintf(f, ")\n");
}
static void ir_emit_conv(ir_ctx *ctx, FILE *f, int def, ir_insn *insn, const char *op)
{
ir_emit_def_ref(ctx, f, def);
fprintf(f, "%s %s ", op, ir_type_llvm_name[ctx->ir_base[insn->op1].type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, " to %s\n", ir_type_llvm_name[insn->type]);
}
static void ir_emit_minmax_op(ir_ctx *ctx, FILE *f, int def, ir_insn *insn,
ir_llvm_intrinsic_id id, ir_bitset used_intrinsics)
{
ir_type type = insn->type;
if (IR_IS_TYPE_FP(type)) {
id += (type == IR_DOUBLE) ? 8 : 9;
} else {
if (IR_IS_TYPE_UNSIGNED(type)) {
id += 4;
}
switch (ir_type_size[type]) {
case 2: id += 1; break;
case 4: id += 2; break;
case 8: id += 3; break;
}
}
ir_bitset_incl(used_intrinsics, id);
ir_emit_def_ref(ctx, f, def);
fprintf(f, "call %s @%s(%s ", ir_type_llvm_name[type],
ir_llvm_intrinsic_desc[id].name, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", %s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ")\n");
}
static void ir_emit_conditional_op(ir_ctx *ctx, FILE *f, int def, ir_insn *insn)
{
ir_type type = ctx->ir_base[insn->op1].type;
ir_emit_def_ref(ctx, f, def);
if (type == IR_BOOL) {
fprintf(f, "select i1 ");
ir_emit_ref(ctx, f, insn->op1);
} else if (IR_IS_TYPE_FP(type)) {
fprintf(f, "\t%%t%d = fcmp une %s ", def, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", 0.0\n");
fprintf(f, "select i1 %%t%d", def);
} else {
fprintf(f, "\t%%t%d = icmp ne %s ", def, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", 0\n");
fprintf(f, "select i1 %%t%d", def);
}
fprintf(f, ", %s ", ir_type_llvm_name[insn->type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ", %s ", ir_type_llvm_name[insn->type]);
ir_emit_ref(ctx, f, insn->op3);
fprintf(f, "\n");
}
static void ir_emit_abs(ir_ctx *ctx, FILE *f, int def, ir_insn *insn, ir_bitset used_intrinsics)
{
ir_type type = ctx->ir_base[insn->op1].type;
ir_llvm_intrinsic_id id;
ir_emit_def_ref(ctx, f, def);
if (IR_IS_TYPE_FP(type)) {
id = type == IR_DOUBLE ? IR_LLVM_INTR_FABS_F64 : IR_LLVM_INTR_FABS_F32;
ir_bitset_incl(used_intrinsics, id);
fprintf(f, "call %s @%s(%s ",
ir_type_llvm_name[type], ir_llvm_intrinsic_desc[id].name, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ")\n");
} else {
id = IR_LLVM_INTR_ABS_I8;
switch (ir_type_size[type]) {
case 2: id += 1; break;
case 4: id += 2; break;
case 8: id += 3; break;
}
ir_bitset_incl(used_intrinsics, id);
fprintf(f, "call %s @%s(%s ",
ir_type_llvm_name[type], ir_llvm_intrinsic_desc[id].name, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, ", i1 0)\n");
}
}
static void ir_emit_if(ir_ctx *ctx, FILE *f, uint32_t b, ir_ref def, ir_insn *insn)
{
ir_type type = ctx->ir_base[insn->op2].type;
uint32_t true_block = 0, false_block = 0, next_block;
ir_get_true_false_blocks(ctx, b, &true_block, &false_block, &next_block);
// TODO: i1 @llvm.expect.i1(i1 <val>, i1 <expected_val>) ???
if (type == IR_BOOL) {
fprintf(f, "\tbr i1 ");
ir_emit_ref(ctx, f, insn->op2);
} else if (IR_IS_TYPE_FP(type)) {
fprintf(f, "\t%%t%d = fcmp une %s ", def, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ", 0.0\n");
fprintf(f, "\tbr i1 %%t%d", def);
} else {
fprintf(f, "\t%%t%d = icmp ne %s ", def, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ", 0\n");
fprintf(f, "\tbr i1 %%t%d", def);
}
fprintf(f, ", label %%l%d, label %%l%d\n", true_block, false_block);
}
static void ir_emit_guard(ir_ctx *ctx, FILE *f, ir_ref def, ir_insn *insn)
{
ir_type type = ctx->ir_base[insn->op2].type;
// TODO: i1 @llvm.expect.i1(i1 <val>, i1 <expected_val>) ???
if (type == IR_BOOL) {
fprintf(f, "\tbr i1 ");
ir_emit_ref(ctx, f, insn->op2);
} else if (IR_IS_TYPE_FP(type)) {
fprintf(f, "\t%%t%d = fcmp une %s ", def, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ", 0.0\n");
fprintf(f, "\tbr i1 %%t%d", def);
} else {
fprintf(f, "\t%%t%d = icmp ne %s ", def, ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ", 0\n");
fprintf(f, "\tbr i1 %%t%d", def);
}
fprintf(f, ", label %%l%d_true, label %%l%d_false\n", def, def);
fprintf(f, "l%d_%s:\n", def, insn->op == IR_GUARD ? "false" : "true");
fprintf(f, "\tindirectbr ptr ");
if (IR_IS_CONST_REF(insn->op3) && ctx->ir_base[insn->op3].op == IR_ADDR) {
fprintf(f, "inttoptr(i64 u0x%" PRIxPTR " to ptr)", ctx->ir_base[insn->op3].val.addr);
} else {
ir_emit_ref(ctx, f, insn->op3);
}
fprintf(f, ", []\n");
fprintf(f, "l%d_%s:\n", def, insn->op == IR_GUARD ? "true" : "false");
}
static void ir_emit_switch(ir_ctx *ctx, FILE *f, uint32_t b, ir_ref def, ir_insn *insn)
{
ir_type type = ctx->ir_base[insn->op2].type;
ir_block *bb;
uint32_t n, *p, use_block;
ir_insn *use_insn;
// TODO: i1 @llvm.expect.i1(i1 <val>, i1 <expected_val>) ???
fprintf(f, "\tswitch %s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op2);
bb = &ctx->cfg_blocks[b];
p = &ctx->cfg_edges[bb->successors];
for (n = bb->successors_count; n != 0; p++, n--) {
use_block = *p;
use_insn = &ctx->ir_base[ctx->cfg_blocks[use_block].start];
if (use_insn->op == IR_CASE_DEFAULT) {
fprintf(f, ", label %%l%d", ir_skip_empty_target_blocks(ctx, use_block));
break;
} else {
IR_ASSERT(use_insn->op == IR_CASE_VAL);
}
}
fprintf(f, " [\n");
p = &ctx->cfg_edges[bb->successors];
for (n = bb->successors_count; n != 0; p++, n--) {
use_block = *p;
use_insn = &ctx->ir_base[ctx->cfg_blocks[use_block].start];
if (use_insn->op == IR_CASE_VAL) {
fprintf(f, "\t\t%s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, use_insn->op2);
fprintf(f, ", label %%l%d\n", ir_skip_empty_target_blocks(ctx, use_block));
} else {
IR_ASSERT(use_insn->op == IR_CASE_DEFAULT);
}
}
fprintf(f, "\t]\n");
}
static int ir_builtin_func(const char *name)
{
int l = 0;
int r = sizeof(ir_llvm_builtin_map) / sizeof(ir_llvm_builtin_map[0]);
while (l >= r) {
int n = (l + r) / 2;
int ret = strcmp(name, ir_llvm_builtin_map[n].name);
if (ret < 0) {
l = n + 1;
} else if (ret > 0) {
r = n - 1;
}
return n;
}
return -1;
}
static void ir_emit_call(ir_ctx *ctx, FILE *f, ir_ref def, ir_insn *insn, ir_bitset used_intrinsics)
{
int j, k, n;
ir_ref last_arg = IR_UNUSED;
if (insn->type != IR_VOID) {
ir_emit_def_ref(ctx, f, def);
} else {
fprintf(f, "\t");
}
if (insn->op == IR_TAILCALL) {
fprintf(f, "tail ");
}
fprintf(f, "call ");
if (ir_is_fastcall(ctx, insn)) {
fprintf(f, "x86_fastcallcc ");
}
fprintf(f, "%s ", ir_type_llvm_name[insn->type]);
if (ir_is_vararg(ctx, insn)) {
fprintf(f, "(...) ");
}
// TODO: function prototype ???
if (IR_IS_CONST_REF(insn->op2)) {
const ir_insn *func = &ctx->ir_base[insn->op2];
const char *name;
IR_ASSERT(func->op == IR_FUNC);
name = ir_get_str(ctx, func->val.name);
if (func->proto) {
const ir_proto_t *proto = (const ir_proto_t *)ir_get_str(ctx, func->proto);
if (proto->flags & IR_BUILTIN_FUNC) {
int n = ir_builtin_func(name);
if (n >= 0) {
ir_llvm_intrinsic_id id = ir_llvm_builtin_map[n].id;
if (id == IR_LLVM_INTR_MEMSET
|| id == IR_LLVM_INTR_MEMCPY
|| id == IR_LLVM_INTR_MEMMOVE) {
last_arg = IR_FALSE;
}
ir_bitset_incl(used_intrinsics, ir_llvm_builtin_map[n].id);
name = ir_llvm_builtin_map[n].name;
}
}
}
fprintf(f, "@%s", name);
} else {
ir_emit_ref(ctx, f, insn->op2);
}
fprintf(f, "(");
n = insn->inputs_count;
for (j = 3; j <= n; j++) {
if (j != 3) {
fprintf(f, ", ");
}
k = ir_insn_op(insn, j);
fprintf(f, "%s ", ir_type_llvm_name[ctx->ir_base[k].type]);
ir_emit_ref(ctx, f, k);
}
if (last_arg) {
fprintf(f, ", ");
fprintf(f, "%s ", ir_type_llvm_name[ctx->ir_base[last_arg].type]);
ir_emit_ref(ctx, f, last_arg);
}
fprintf(f, ")\n");
if (insn->op == IR_TAILCALL) {
if (insn->type != IR_VOID) {
fprintf(f, "\tret %s", ir_type_llvm_name[insn->type]);
fprintf(f, " ");
ir_emit_ref(ctx, f, def);
fprintf(f, "\n");
} else {
fprintf(f, "\tunreachable\n");
}
}
}
static void ir_emit_ijmp(ir_ctx *ctx, FILE *f, ir_insn *insn)
{
fprintf(f, "\tindirectbr ptr ");
if (IR_IS_CONST_REF(insn->op2) && ctx->ir_base[insn->op2].op == IR_ADDR) {
fprintf(f, "inttoptr(i64 u0x%" PRIxPTR " to ptr)", ctx->ir_base[insn->op2].val.addr);
} else {
ir_emit_ref(ctx, f, insn->op2);
}
fprintf(f, ", []\n");
}
static void ir_emit_alloca(ir_ctx *ctx, FILE *f, ir_ref def, ir_insn *insn)
{
ir_emit_def_ref(ctx, f, def);
fprintf(f, "alloca i8, %s ", ir_type_llvm_name[ctx->ir_base[insn->op2].type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ", align 16\n");
}
static void ir_emit_vaddr(ir_ctx *ctx, FILE *f, ir_ref def, ir_insn *insn)
{
ir_emit_def_ref(ctx, f, def);
fprintf(f, "bitcast ptr ");
ir_emit_ref(ctx, f, insn->op1);
fprintf(f, " to ptr\n");
}
static void ir_emit_load(ir_ctx *ctx, FILE *f, ir_ref def, ir_insn *insn)
{
ir_emit_def_ref(ctx, f, def);
fprintf(f, "load %s, ptr ", ir_type_llvm_name[insn->type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, "\n");
}
static void ir_emit_store(ir_ctx *ctx, FILE *f, ir_insn *insn)
{
ir_type type = ctx->ir_base[insn->op3].type;
fprintf(f, "\tstore %s ", ir_type_llvm_name[type]);
ir_emit_ref(ctx, f, insn->op3);
fprintf(f, ", ptr ");
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, "\n");
}
static bool may_be_used_by_phi(ir_ctx *ctx, ir_block *bb)
{
if (bb->successors_count == 1) {
bb = &ctx->cfg_blocks[ctx->cfg_edges[bb->successors]];
if (bb->predecessors_count > 1) {
ir_use_list *use_list = &ctx->use_lists[bb->start];
ir_ref i, n, *p;
n = use_list->count;
if (n > 1) {
for (i = 0, p = &ctx->use_edges[use_list->refs]; i < n; i++, p++) {
if (ctx->ir_base[*p].op == IR_PHI) {
return 1;
}
}
}
}
}
return 0;
}
static int ir_emit_func(ir_ctx *ctx, const char *name, FILE *f)
{
ir_ref i, n, *p, use;
ir_insn *insn;
ir_use_list *use_list;
bool first;
uint32_t b, target;
ir_block *bb;
ir_bitset_base_t used_intrinsics[IR_LLVM_INTRINSIC_BITSET_LEN];
memset(used_intrinsics, 0, sizeof(used_intrinsics));
/* Emit function prototype */
fprintf(f, "define ");
if (ctx->flags & IR_STATIC) {
fprintf(f, "internal ");
}
if (ctx->flags & IR_FASTCALL_FUNC) {
fprintf(f, "x86_fastcallcc ");
}
fprintf(f, "%s", ir_type_llvm_name[ctx->ret_type != (ir_type)-1 ? ctx->ret_type : IR_VOID]);
fprintf(f, " @%s(", name);
use_list = &ctx->use_lists[1];
n = use_list->count;
first = 1;
for (i = 0, p = &ctx->use_edges[use_list->refs]; i < n; i++, p++) {
use = *p;
insn = &ctx->ir_base[use];
if (insn->op == IR_PARAM) {
if (first) {
first = 0;
} else {
fprintf(f, ", ");
}
fprintf(f, "%s %%d%d", ir_type_llvm_name[insn->type], use);
}
}
if (ctx->flags & IR_VARARG_FUNC) {
if (first) {
first = 0;
} else {
fprintf(f, ", ");
}
fprintf(f, "...");
}
fprintf(f, ")\n{\n");
for (b = 1, bb = ctx->cfg_blocks + b; b <= ctx->cfg_blocks_count; b++, bb++) {
IR_ASSERT(!(bb->flags & IR_BB_UNREACHABLE));
if ((bb->flags & (IR_BB_START|IR_BB_ENTRY|IR_BB_EMPTY)) == IR_BB_EMPTY) {
continue;
}
if (bb->predecessors_count > 0 || may_be_used_by_phi(ctx, bb)) {
fprintf(f, "l%d:\n", b);
}
for (i = bb->start, insn = ctx->ir_base + i; i <= bb->end;) {
switch (insn->op) {
case IR_START:
case IR_BEGIN:
case IR_IF_TRUE:
case IR_IF_FALSE:
case IR_CASE_VAL:
case IR_CASE_DEFAULT:
case IR_MERGE:
case IR_LOOP_BEGIN:
case IR_PARAM:
/* skip */
break;
case IR_PHI:
ir_emit_phi(ctx, f, i, insn, bb);
break;
case IR_VAR:
use_list = &ctx->use_lists[i];
if (use_list->count > 0) {
fprintf(f, "\t%%d%d = alloca %s\n", i, ir_type_llvm_name[insn->type]);
}
break;
case IR_EQ:
ir_emit_binary_op(ctx, f, i, insn, "icmp eq", NULL, "fcmp oeq");
break;
case IR_NE:
ir_emit_binary_op(ctx, f, i, insn, "icmp ne", NULL, "fcmp une");
break;
case IR_LT:
ir_emit_binary_op(ctx, f, i, insn, "icmp slt", "icmp ult", "fcmp olt");
break;
case IR_GE:
ir_emit_binary_op(ctx, f, i, insn, "icmp sge", "icmp uge", "fcmp oge");
break;
case IR_LE:
ir_emit_binary_op(ctx, f, i, insn, "icmp sle", "icmp ule", "fcmp ole");
break;
case IR_GT:
ir_emit_binary_op(ctx, f, i, insn, "icmp sgt", "icmp ugt", "fcmp ogt");
break;
case IR_ULT:
ir_emit_binary_op(ctx, f, i, insn, "icmp ult", NULL, "fcmp ult");
break;
case IR_UGE:
ir_emit_binary_op(ctx, f, i, insn, "icmp uge", NULL, "fcmp uge");
break;
case IR_ULE:
ir_emit_binary_op(ctx, f, i, insn, "icmp ule", NULL, "fcmp ule");
break;
case IR_UGT:
ir_emit_binary_op(ctx, f, i, insn, "icmp ugt", NULL, "fcmp ugt");
break;
case IR_ADD:
ir_emit_binary_op(ctx, f, i, insn, "add", NULL, "fadd");
break;
case IR_SUB:
ir_emit_binary_op(ctx, f, i, insn, "sub", NULL, "fsub");
break;
case IR_MUL:
ir_emit_binary_op(ctx, f, i, insn, "mul", NULL, "fmul");
break;
case IR_DIV:
ir_emit_binary_op(ctx, f, i, insn, "sdiv", "udiv", "fdiv");
break;
case IR_MOD:
ir_emit_binary_op(ctx, f, i, insn, "srem", "urem", NULL);
break;
case IR_NEG:
ir_emit_unary_neg(ctx, f, i, insn);
break;
case IR_NOT:
ir_emit_unary_not(ctx, f, i, insn);
break;
case IR_OR:
ir_emit_binary_op(ctx, f, i, insn, "or", NULL, NULL);
break;
case IR_AND:
ir_emit_binary_op(ctx, f, i, insn, "and", NULL, NULL);
break;
case IR_XOR:
ir_emit_binary_op(ctx, f, i, insn, "xor", NULL, NULL);
break;
case IR_MIN:
ir_emit_minmax_op(ctx, f, i, insn, IR_LLVM_INTR_SMIN_I8, used_intrinsics);
break;
case IR_MAX:
ir_emit_minmax_op(ctx, f, i, insn, IR_LLVM_INTR_SMAX_I8, used_intrinsics);
break;
case IR_COND:
ir_emit_conditional_op(ctx, f, i, insn);
break;
case IR_ABS:
ir_emit_abs(ctx, f, i, insn, used_intrinsics);
break;
case IR_SHL:
ir_emit_binary_op(ctx, f, i, insn, "shl", NULL, NULL);
break;
case IR_SHR:
ir_emit_binary_op(ctx, f, i, insn, "lshr", NULL, NULL);
break;
case IR_SAR:
ir_emit_binary_op(ctx, f, i, insn, "ashr", NULL, NULL);
break;
case IR_ROL:
ir_emit_rol_ror(ctx, f, i, insn, IR_LLVM_INTR_FSHL_I8, used_intrinsics);
break;
case IR_ROR:
ir_emit_rol_ror(ctx, f, i, insn, IR_LLVM_INTR_FSHR_I8, used_intrinsics);
break;
case IR_BSWAP:
ir_emit_bitop(ctx, f, i, insn, IR_LLVM_INTR_BSWAP_I16, 0, used_intrinsics);
break;
case IR_CTPOP:
ir_emit_bitop(ctx, f, i, insn, IR_LLVM_INTR_CTPOP_I8, 0, used_intrinsics);
break;
case IR_CTLZ:
ir_emit_bitop(ctx, f, i, insn, IR_LLVM_INTR_CTLZ_I8, 1, used_intrinsics);
break;
case IR_CTTZ:
ir_emit_bitop(ctx, f, i, insn, IR_LLVM_INTR_CTTZ_I8, 1, used_intrinsics);
break;
case IR_SEXT:
IR_ASSERT(IR_IS_TYPE_INT(insn->type));
IR_ASSERT(IR_IS_TYPE_INT(ctx->ir_base[insn->op1].type));
IR_ASSERT(ir_type_size[insn->type] > ir_type_size[ctx->ir_base[insn->op1].type]);
ir_emit_conv(ctx, f, i, insn, "sext");
break;
case IR_ZEXT:
IR_ASSERT(IR_IS_TYPE_INT(insn->type));
IR_ASSERT(IR_IS_TYPE_INT(ctx->ir_base[insn->op1].type));
IR_ASSERT(ir_type_size[insn->type] > ir_type_size[ctx->ir_base[insn->op1].type]);
ir_emit_conv(ctx, f, i, insn, "zext");
break;
case IR_TRUNC:
IR_ASSERT(IR_IS_TYPE_INT(insn->type));
IR_ASSERT(IR_IS_TYPE_INT(ctx->ir_base[insn->op1].type));
IR_ASSERT(ir_type_size[insn->type] < ir_type_size[ctx->ir_base[insn->op1].type]);
ir_emit_conv(ctx, f, i, insn, "trunc");
break;
case IR_BITCAST:
if (insn->type == IR_ADDR
&& IR_IS_TYPE_INT(ctx->ir_base[insn->op1].type)
&& ctx->ir_base[insn->op1].type != IR_ADDR) {
ir_emit_conv(ctx, f, i, insn, "inttoptr");
} else if (ctx->ir_base[insn->op1].type == IR_ADDR
&& IR_IS_TYPE_INT(insn->type)
&& insn->type != IR_ADDR) {
ir_emit_conv(ctx, f, i, insn, "ptrtoint");
} else {
ir_emit_conv(ctx, f, i, insn, "bitcast");
}
break;
case IR_PROTO:
ir_emit_conv(ctx, f, i, insn, "bitcast");
break;
case IR_INT2FP:
IR_ASSERT(IR_IS_TYPE_FP(insn->type));
IR_ASSERT(IR_IS_TYPE_INT(ctx->ir_base[insn->op1].type));
ir_emit_conv(ctx, f, i, insn, IR_IS_TYPE_UNSIGNED(ctx->ir_base[insn->op1].type) ? "uitofp" : "sitofp");
break;
case IR_FP2INT:
IR_ASSERT(IR_IS_TYPE_INT(insn->type));
IR_ASSERT(IR_IS_TYPE_FP(ctx->ir_base[insn->op1].type));
ir_emit_conv(ctx, f, i, insn, IR_IS_TYPE_UNSIGNED(insn->type) ? "fptoui" : "fptosi");
break;
case IR_FP2FP:
IR_ASSERT(IR_IS_TYPE_FP(insn->type));
IR_ASSERT(IR_IS_TYPE_FP(ctx->ir_base[insn->op1].type));
ir_emit_conv(ctx, f, i, insn, insn->type == IR_DOUBLE ? "fpext" : "fptrunc");
break;
case IR_COPY:
ir_emit_conv(ctx, f, i, insn, "bitcast");
break;
case IR_ADD_OV:
ir_emit_binary_overflow_op(ctx, f, i, insn, IR_LLVM_INTR_SADD_OV_I8, used_intrinsics);
break;
case IR_SUB_OV:
ir_emit_binary_overflow_op(ctx, f, i, insn, IR_LLVM_INTR_SSUB_OV_I8, used_intrinsics);
break;
case IR_MUL_OV:
ir_emit_binary_overflow_op(ctx, f, i, insn, IR_LLVM_INTR_SMUL_OV_I8, used_intrinsics);
break;
case IR_OVERFLOW:
ir_emit_def_ref(ctx, f, i);
fprintf(f, "extractvalue {%s, i1} %%t%d, 1\n", ir_type_llvm_name[ctx->ir_base[insn->op1].type], insn->op1);
break;
case IR_RETURN:
IR_ASSERT(bb->successors_count == 0);
if (!insn->op2) {
fprintf(f, "\tret void\n");
} else {
fprintf(f, "\tret %s ", ir_type_llvm_name[ctx->ir_base[insn->op2].type]);
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, "\n");
}
break;
case IR_END:
case IR_LOOP_END:
IR_ASSERT(bb->successors_count == 1);
target = ir_skip_empty_target_blocks(ctx, ctx->cfg_edges[bb->successors]);
fprintf(f, "\tbr label %%l%d\n", target);
break;
case IR_IF:
ir_emit_if(ctx, f, b, i, insn);
break;
case IR_SWITCH:
ir_emit_switch(ctx, f, b, i, insn);
break;
case IR_CALL:
case IR_TAILCALL:
ir_emit_call(ctx, f, i, insn, used_intrinsics);
if (insn->op == IR_TAILCALL) {
i = bb->end + 1;
continue;
}
break;
case IR_IJMP:
ir_emit_ijmp(ctx, f, insn);
break;
case IR_ALLOCA:
ir_emit_alloca(ctx, f, i, insn);
break;
case IR_VADDR:
ir_emit_vaddr(ctx, f, i, insn);
break;
case IR_LOAD:
case IR_VLOAD:
ir_emit_load(ctx, f, i, insn);
break;
case IR_STORE:
case IR_VSTORE:
ir_emit_store(ctx, f, insn);
break;
case IR_FRAME_ADDR:
ir_emit_def_ref(ctx, f, i);
ir_bitset_incl(used_intrinsics, IR_LLVM_INTR_FRAMEADDRESS);
fprintf(f, "\tcall ptr @llvm.frameaddress.p0(i32 0)\n");
break;
case IR_VA_START:
ir_bitset_incl(used_intrinsics, IR_LLVM_INTR_VA_START);
fprintf(f, "\tcall void @llvm.va_start(ptr ");
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ")\n");
break;
case IR_VA_END:
ir_bitset_incl(used_intrinsics, IR_LLVM_INTR_VA_END);
fprintf(f, "\tcall void @llvm.va_end(ptr ");
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ")\n");
break;
case IR_VA_COPY:
ir_bitset_incl(used_intrinsics, IR_LLVM_INTR_VA_COPY);
fprintf(f, "\tcall void @llvm.va_copy(ptr");
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ", ptr ");
ir_emit_ref(ctx, f, insn->op3);
fprintf(f, ")\n");
break;
case IR_VA_ARG:
ir_emit_def_ref(ctx, f, i);
fprintf(f, "va_arg ptr ");
ir_emit_ref(ctx, f, insn->op2);
fprintf(f, ", %s\n", ir_type_cname[insn->type]);
break;
case IR_TRAP:
ir_bitset_incl(used_intrinsics, IR_LLVM_INTR_DEBUGTRAP);
fprintf(f, "\tcall void @llvm.debugtrap()\n");
break;
case IR_GUARD:
case IR_GUARD_NOT:
ir_emit_guard(ctx, f, i, insn);
break;
case IR_UNREACHABLE:
fprintf(f, "\tunreachable\n");
break;
case IR_RLOAD:
case IR_RSTORE:
case IR_TLS:
default:
IR_ASSERT(0 && "NIY instruction");
ctx->status = IR_ERROR_UNSUPPORTED_CODE_RULE;
return 0;
}
n = ir_insn_len(insn);
i += n;
insn += n;
}
}
fprintf(f, "}\n");
IR_BITSET_FOREACH(used_intrinsics, IR_LLVM_INTRINSIC_BITSET_LEN, i) {
const char *name = ir_llvm_intrinsic_desc[i].name;
if (!ctx->loader || !ctx->loader->has_sym || !ctx->loader->has_sym(ctx->loader, name)) {
ir_emit_llvm_func_decl(name, 0, ir_llvm_intrinsic_desc[i].ret_type,
ir_llvm_intrinsic_desc[i].params_count, ir_llvm_intrinsic_desc[i].param_types, f);
if (ctx->loader->add_sym) {
ctx->loader->add_sym(ctx->loader, name, NULL);
}
}
} IR_BITSET_FOREACH_END();
for (i = IR_UNUSED + 1, insn = ctx->ir_base - i; i < ctx->consts_count; i++, insn--) {
if (insn->op == IR_FUNC) {
const char *name;
name = ir_get_str(ctx, insn->val.name);
if (insn->proto) {
const ir_proto_t *proto = (const ir_proto_t *)ir_get_str(ctx, insn->proto);
if (proto->flags & IR_BUILTIN_FUNC) {
n = ir_builtin_func(name);
if (n >= 0) {
name = ir_llvm_builtin_map[n].name;
}
}
if (!ctx->loader || !ctx->loader->has_sym || !ctx->loader->has_sym(ctx->loader, name)) {
ir_emit_llvm_func_decl(name, proto->flags, proto->ret_type, proto->params_count, proto->param_types, f);
if (ctx->loader->add_sym) {
ctx->loader->add_sym(ctx->loader, name, NULL);
}
}
} else {
fprintf(f, "declare void @%s()\n", name);
}
} else if (insn->op == IR_SYM) {
const char *name;
name = ir_get_str(ctx, insn->val.name);
if (!ctx->loader || !ctx->loader->has_sym || !ctx->loader->has_sym(ctx->loader, name)) {
// TODO: symbol "global" or "constant" ???
// TODO: symbol type ???
fprintf(f, "@%s = external global ptr\n", name);
if (ctx->loader->add_sym) {
ctx->loader->add_sym(ctx->loader, name, NULL);
}
}
} else if (insn->op == IR_STR) {
const char *str = ir_get_str(ctx, insn->val.str);
// TODO: strlen != size ???
int len = strlen(str);
int j;
fprintf(f, "@.str%d = private unnamed_addr constant [%d x i8] c\"", i, len + 1);
for (j = 0; j < len; j++) {
char c = str[j];
if (c == '\\') {
if (str[j+1] == '\\') {
j++;
c = '\\';
} else if (str[j+1] == '\'') {
j++;
c = '\'';
} else if (str[j+1] == '"') {
j++;
c = '"';
} else if (str[j+1] == 'a') {
j++;
c = '\a';
} else if (str[j+1] == 'b') {
j++;
c = '\b';
} else if (str[j+1] == 'e') {
j++;
c = 27; /* '\e'; */
} else if (str[j+1] == 'f') {
j++;
c = '\f';
} else if (str[j+1] == 'n') {
j++;
c = '\n';
} else if (str[j+1] == 'r') {
j++;
c = '\r';
} else if (str[j+1] == 't') {
j++;
c = '\t';
} else if (str[j+1] == 'v') {
j++;
c = '\v';
} else if (str[j+1] == '?') {
j++;
c = 0x3f;
}
}
if (c < ' ' || c >= 127) {
char c1 = c >> 8;
char c2 = c & 15;
c1 = (c1 < 10) ? (c1 + '0') : (c1 - 10 + 'A');
c2 = (c2 < 10) ? (c2 + '0') : (c2 - 10 + 'A');
fprintf(f, "\\%c%c", c1, c2);
} else {
fprintf(f, "%c", c);
}
}
fprintf(f, "\\00\"\n");
}
}
return 1;
}
int ir_emit_llvm(ir_ctx *ctx, const char *name, FILE *f)
{
return ir_emit_func(ctx, name, f);
}
void ir_emit_llvm_func_decl(const char *name, uint32_t flags, ir_type ret_type, uint32_t params_count, const uint8_t *param_types, FILE *f)
{
fprintf(f, "declare %s%s @%s(",
(flags & IR_FASTCALL_FUNC) ? "x86_fastcallcc ": "",
ir_type_llvm_name[ret_type], name);
if (params_count) {
const uint8_t *p = param_types;
fprintf(f, "%s", ir_type_llvm_name[*p]);
p++;
while (--params_count) {
fprintf(f, ", %s", ir_type_llvm_name[*p]);
p++;
}
if (flags & IR_VARARG_FUNC) {
fprintf(f, ", ...");
}
} else if (flags & IR_VARARG_FUNC) {
fprintf(f, "...");
}
fprintf(f, ")\n");
}
void ir_emit_llvm_sym_decl(const char *name, uint32_t flags, bool has_data, FILE *f)
{
fprintf(f, "@%s = ", name);
if (flags & IR_EXTERN) {
fprintf(f, "external ");
} else if (flags & IR_STATIC) {
fprintf(f, "private ");
}
if (flags & IR_CONST) {
fprintf(f, "constant ");
} else {
fprintf(f, "global ");
}
// TODO: type
fprintf(f, "ptr");
if (!(flags & IR_EXTERN)) {
// TODO: init
fprintf(f, " zeroinitializer");
}
fprintf(f, "\n");
}
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