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fix tripping llvm assert

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```
Assertion `!isa<DIType>(Scope) && "shouldn't
make a namespace scope for a type"
```

We've had this problem and solved it before; see #579.
This commit is contained in:
Andrew Kelley 2019-09-16 14:02:00 -04:00
parent c4416b224d
commit 5e34fb3597
No known key found for this signature in database
GPG Key ID: 7C5F548F728501A9
2 changed files with 28 additions and 17 deletions
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42
src/analyze.cpp
View File

@ -7864,6 +7864,26 @@ static void resolve_llvm_types_struct(CodeGen *g, ZigType *struct_type, ResolveS
}
}
// This is to be used instead of void for debug info types, to avoid tripping
// Assertion `!isa<DIType>(Scope) && "shouldn't make a namespace scope for a type"'
// when targeting CodeView (Windows).
static ZigLLVMDIType *make_empty_namespace_llvm_di_type(CodeGen *g, ZigType *import, const char *name,
AstNode *decl_node)
{
uint64_t debug_size_in_bits = 0;
uint64_t debug_align_in_bits = 0;
ZigLLVMDIType **di_element_types = nullptr;
size_t debug_field_count = 0;
return ZigLLVMCreateDebugStructType(g->dbuilder,
ZigLLVMFileToScope(import->data.structure.root_struct->di_file),
name,
import->data.structure.root_struct->di_file, (unsigned)(decl_node->line + 1),
debug_size_in_bits,
debug_align_in_bits,
ZigLLVM_DIFlags_Zero,
nullptr, di_element_types, (int)debug_field_count, 0, nullptr, "");
}
static void resolve_llvm_types_enum(CodeGen *g, ZigType *enum_type, ResolveStatus wanted_resolve_status) {
assert(enum_type->data.enumeration.resolve_status >= ResolveStatusSizeKnown);
if (enum_type->data.enumeration.resolve_status >= wanted_resolve_status) return;
@ -7874,19 +7894,8 @@ static void resolve_llvm_types_enum(CodeGen *g, ZigType *enum_type, ResolveStatu
if (!type_has_bits(enum_type)) {
enum_type->llvm_type = g->builtin_types.entry_void->llvm_type;
uint64_t debug_size_in_bits = 0;
uint64_t debug_align_in_bits = 0;
ZigLLVMDIType **di_element_types = nullptr;
size_t debug_field_count = 0;
enum_type->llvm_di_type = ZigLLVMCreateDebugStructType(g->dbuilder,
ZigLLVMFileToScope(import->data.structure.root_struct->di_file),
buf_ptr(&enum_type->name),
import->data.structure.root_struct->di_file, (unsigned)(decl_node->line + 1),
debug_size_in_bits,
debug_align_in_bits,
ZigLLVM_DIFlags_Zero,
nullptr, di_element_types, (int)debug_field_count, 0, nullptr, "");
enum_type->llvm_di_type = make_empty_namespace_llvm_di_type(g, import, buf_ptr(&enum_type->name),
decl_node);
enum_type->data.enumeration.resolve_status = ResolveStatusLLVMFull;
return;
}
@ -7927,6 +7936,8 @@ static void resolve_llvm_types_union(CodeGen *g, ZigType *union_type, ResolveSta
if (union_type->data.unionation.resolve_status >= wanted_resolve_status) return;
bool packed = (union_type->data.unionation.layout == ContainerLayoutPacked);
Scope *scope = &union_type->data.unionation.decls_scope->base;
ZigType *import = get_scope_import(scope);
TypeUnionField *most_aligned_union_member = union_type->data.unionation.most_aligned_union_member;
ZigType *tag_type = union_type->data.unionation.tag_type;
@ -7934,7 +7945,8 @@ static void resolve_llvm_types_union(CodeGen *g, ZigType *union_type, ResolveSta
if (gen_field_count == 0) {
if (tag_type == nullptr) {
union_type->llvm_type = g->builtin_types.entry_void->llvm_type;
union_type->llvm_di_type = g->builtin_types.entry_void->llvm_di_type;
union_type->llvm_di_type = make_empty_namespace_llvm_di_type(g, import, buf_ptr(&union_type->name),
union_type->data.unionation.decl_node);
} else {
union_type->llvm_type = get_llvm_type(g, tag_type);
union_type->llvm_di_type = get_llvm_di_type(g, tag_type);
@ -7943,8 +7955,6 @@ static void resolve_llvm_types_union(CodeGen *g, ZigType *union_type, ResolveSta
return;
}
Scope *scope = &union_type->data.unionation.decls_scope->base;
ZigType *import = get_scope_import(scope);
AstNode *decl_node = union_type->data.unionation.decl_node;
if (union_type->data.unionation.resolve_status < ResolveStatusLLVMFwdDecl) {

3
test/stage1/behavior/union.zig
View File

@ -1,4 +1,5 @@
const expect = @import("std").testing.expect;
const std = @import("std");
const expect = std.testing.expect;
const Value = union(enum) {
Int: u64,