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Add runtime.bswap_* required for -llvm-api

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gingerBill
2020-04-11 19:26:16 +01:00
parent 62dc99dbef
commit baf5b9edc3
5 changed files with 106 additions and 58 deletions
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67
src/llvm_backend.cpp
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@@ -7783,6 +7783,23 @@ void lb_emit_increment(lbProcedure *p, lbValue addr) {
}
LLVMValueRef lb_lookup_runtime_procedure(lbModule *m, String const &name) {
AstPackage *pkg = m->info->runtime_package;
Entity *e = scope_lookup_current(pkg->scope, name);
lbValue *found = nullptr;
if (m != e->code_gen_module) {
gb_mutex_lock(&m->mutex);
}
found = map_get(&e->code_gen_module->values, hash_entity(e));
if (m != e->code_gen_module) {
gb_mutex_unlock(&m->mutex);
}
GB_ASSERT(found != nullptr);
return found->value;
}
lbValue lb_emit_byte_swap(lbProcedure *p, lbValue value, Type *platform_type) {
Type *vt = core_type(value.type);
GB_ASSERT(type_size_of(vt) == type_size_of(platform_type));
@@ -7793,21 +7810,20 @@ lbValue lb_emit_byte_swap(lbProcedure *p, lbValue value, Type *platform_type) {
res.type = platform_type;
res.value = value.value;
// int sz = cast(int)type_size_of(vt);
// if (sz > 1) {
// char buf[32] = {};
// gb_snprintf(buf, gb_count_of(buf), "llvm.bswap.i%d", sz*8);
// unsigned id = LLVMLookupIntrinsicID(buf, gb_strlen(buf));
// gb_printf(">>> %s %u\n", buf, id);
int sz = cast(int)type_size_of(vt);
if (sz > 1) {
String name = {};
switch (sz) {
case 2: name = str_lit("bswap_16"); break;
case 4: name = str_lit("bswap_32"); break;
case 8: name = str_lit("bswap_64"); break;
case 16: name = str_lit("bswap_128"); break;
default: GB_PANIC("unhandled byteswap size"); break;
}
LLVMValueRef fn = lb_lookup_runtime_procedure(p->module, name);
// LLVMTypeRef types[2] = {};
// types[0] = lb_type(p->module, value.type);
// types[1] = lb_type(p->module, value.type);
// LLVMValueRef fn = LLVMGetIntrinsicDeclaration(p->module->mod, id, types, gb_count_of(types));
// res.value = LLVMBuildCall(p->builder, fn, &value.value, 1, "");
// }
res.value = LLVMBuildCall(p->builder, fn, &value.value, 1, "");
}
return res;
}
@@ -7972,8 +7988,8 @@ lbValue lb_emit_comp_against_nil(lbProcedure *p, TokenKind op_kind, lbValue x) {
lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left, lbValue right) {
Type *a = base_type(left.type);
Type *b = base_type(right.type);
Type *a = core_type(left.type);
Type *b = core_type(right.type);
GB_ASSERT(gb_is_between(op_kind, Token__ComparisonBegin+1, Token__ComparisonEnd-1));
@@ -8235,14 +8251,17 @@ lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left, lbValue ri
}
}
a = core_type(left.type);
b = core_type(right.type);
lbValue res = {};
res.type = t_llvm_bool;
if (is_type_integer(left.type) ||
is_type_boolean(left.type) ||
is_type_pointer(left.type) ||
is_type_proc(left.type) ||
is_type_enum(left.type)) {
if (is_type_integer(a) ||
is_type_boolean(a) ||
is_type_pointer(a) ||
is_type_proc(a) ||
is_type_enum(a)) {
LLVMIntPredicate pred = {};
if (is_type_unsigned(left.type)) {
switch (op_kind) {
@@ -8264,7 +8283,7 @@ lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left, lbValue ri
case Token_NotEq: pred = LLVMIntNE; break;
}
res.value = LLVMBuildICmp(p->builder, pred, left.value, right.value, "");
} else if (is_type_float(left.type)) {
} else if (is_type_float(a)) {
LLVMRealPredicate pred = {};
switch (op_kind) {
case Token_CmpEq: pred = LLVMRealOEQ; break;
@@ -8275,7 +8294,7 @@ lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left, lbValue ri
case Token_NotEq: pred = LLVMRealONE; break;
}
res.value = LLVMBuildFCmp(p->builder, pred, left.value, right.value, "");
} else if (is_type_typeid(left.type)) {
} else if (is_type_typeid(a)) {
LLVMIntPredicate pred = {};
switch (op_kind) {
case Token_Gt: pred = LLVMIntUGT; break;
@@ -8287,7 +8306,7 @@ lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left, lbValue ri
}
res.value = LLVMBuildICmp(p->builder, pred, left.value, right.value, "");
} else {
GB_PANIC("Unhandled comparison kind %s %.*s %s", type_to_string(left.type), LIT(token_strings[op_kind]), type_to_string(right.type));
GB_PANIC("Unhandled comparison kind %s (%s) %.*s %s (%s)", type_to_string(left.type), type_to_string(base_type(left.type)), LIT(token_strings[op_kind]), type_to_string(right.type), type_to_string(base_type(right.type)));
}
return res;