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stage2: add support for optionals in the LLVM backend

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We can now codegen optionals! This includes the following instructions:
- is_null
- is_null_ptr
- is_non_null
- is_non_null_ptr
- optional_payload
- optional_payload_ptr
- br_void

Also includes a test for optionals.
This commit is contained in:
Timon Kruiper
2021-01-09 16:22:43 +01:00
committed by Andrew Kelley
parent 3ad9cb8b47
commit d4ec0279d3
4 changed files with 176 additions and 15 deletions
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9
src/codegen/llvm/bindings.zig
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@@ -21,9 +21,15 @@ pub const Context = opaque {
pub const voidType = LLVMVoidTypeInContext;
extern fn LLVMVoidTypeInContext(C: *const Context) *const Type;
pub const structType = LLVMStructTypeInContext;
extern fn LLVMStructTypeInContext(C: *const Context, ElementTypes: [*]*const Type, ElementCount: c_uint, Packed: LLVMBool) *const Type;
pub const constString = LLVMConstStringInContext;
extern fn LLVMConstStringInContext(C: *const Context, Str: [*]const u8, Length: c_uint, DontNullTerminate: LLVMBool) *const Value;
pub const constStruct = LLVMConstStructInContext;
extern fn LLVMConstStructInContext(C: *const Context, ConstantVals: [*]*const Value, Count: c_uint, Packed: LLVMBool) *const Value;
pub const createBasicBlock = LLVMCreateBasicBlockInContext;
extern fn LLVMCreateBasicBlockInContext(C: *const Context, Name: [*:0]const u8) *const BasicBlock;
@@ -204,6 +210,9 @@ pub const Builder = opaque {
pub const buildPhi = LLVMBuildPhi;
extern fn LLVMBuildPhi(*const Builder, Ty: *const Type, Name: [*:0]const u8) *const Value;
pub const buildExtractValue = LLVMBuildExtractValue;
extern fn LLVMBuildExtractValue(*const Builder, AggVal: *const Value, Index: c_uint, Name: [*:0]const u8) *const Value;
};
pub const IntPredicate = extern enum {