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Make lb_create_enum_attribute ignore certain attributes (they are not properly supported by the actual LLVM C API)

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gingerBill
2021-02-25 11:39:46 +00:00
parent 82275082ff
commit 84deee75cc
2 changed files with 20 additions and 12 deletions
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15
src/llvm_abi.cpp
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@@ -443,9 +443,7 @@ namespace lbAbi386 {
case 4: return lb_arg_type_direct(return_type, LLVMIntTypeInContext(c, 32), nullptr, nullptr);
case 8: return lb_arg_type_direct(return_type, LLVMIntTypeInContext(c, 64), nullptr, nullptr);
}
LLVMAttributeRef attr = nullptr;
// TODO(bill): sret doesn't work correct for LLVM C API
// attr = lb_create_enum_attribute(c, "sret", true);
LLVMAttributeRef attr = lb_create_enum_attribute(c, "sret", true);
return lb_arg_type_indirect(return_type, attr);
}
return non_struct(c, return_type, true);
@@ -604,8 +602,7 @@ namespace lbAbiAmd64SysV {
if (attribute_kind == Amd64TypeAttribute_ByVal) {
attribute = lb_create_enum_attribute(c, "byval", true);
} else if (attribute_kind == Amd64TypeAttribute_StructRect) {
// TODO(bill): sret doesn't work correct for LLVM C API
// attribute = lb_create_enum_attribute(c, "sret", true);
attribute = lb_create_enum_attribute(c, "sret", true);
}
return lb_arg_type_indirect(type, attribute);
} else {
@@ -904,9 +901,7 @@ namespace lbAbiAmd64SysV {
case 4: return lb_arg_type_direct(return_type, LLVMIntTypeInContext(c, 32), nullptr, nullptr);
case 8: return lb_arg_type_direct(return_type, LLVMIntTypeInContext(c, 64), nullptr, nullptr);
}
LLVMAttributeRef attr = nullptr;
// TODO(bill): sret doesn't work correct for LLVM C API
// attr = lb_create_enum_attribute(c, "sret", true);
LLVMAttributeRef attr = lb_create_enum_attribute(c, "sret", true);
return lb_arg_type_indirect(return_type, attr);
} else if (build_context.metrics.os == TargetOs_windows && lb_is_type_kind(return_type, LLVMIntegerTypeKind) && lb_sizeof(return_type) == 16) {
return lb_arg_type_direct(return_type, LLVMIntTypeInContext(c, 128), nullptr, nullptr);
@@ -1055,9 +1050,7 @@ namespace lbAbiArm64 {
}
return lb_arg_type_direct(type, cast_type, nullptr, nullptr);
} else {
LLVMAttributeRef attr = nullptr;
// TODO(bill): sret doesn't work correct for LLVM C API
// attr = lb_create_enum_attribute(c, "sret", true);
LLVMAttributeRef attr = lb_create_enum_attribute(c, "sret", true);
return lb_arg_type_indirect(type, attr);
}
}

17
src/llvm_backend.cpp
View File

@@ -1977,7 +1977,22 @@ lbValue lb_emit_string(lbProcedure *p, lbValue str_elem, lbValue str_len) {
}
LLVMAttributeRef lb_create_enum_attribute(LLVMContextRef ctx, char const *name, u64 value) {
unsigned kind = LLVMGetEnumAttributeKindForName(name, gb_strlen(name));
String s = make_string_c(name);
// NOTE(2021-02-25, bill); All this attributes require a type associated with them
// and the current LLVM C API does not expose this functionality yet.
// It is better to ignore the attributes for the time being
if (s == "byval") {
return nullptr;
} else if (s == "byref") {
return nullptr;
} else if (s == "preallocated") {
return nullptr;
} else if (s == "sret") {
return nullptr;
}
unsigned kind = LLVMGetEnumAttributeKindForName(name, s.len);
GB_ASSERT_MSG(kind != 0, "unknown attribute: %s", name);
return LLVMCreateEnumAttribute(ctx, kind, value);
}