diff options
Diffstat (limited to 'src/codegen/llvm.zig')
| -rw-r--r-- | src/codegen/llvm.zig | 74 |
1 files changed, 35 insertions, 39 deletions
diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig index 45426c5ee0..004d152e1f 100644 --- a/src/codegen/llvm.zig +++ b/src/codegen/llvm.zig @@ -9051,7 +9051,7 @@ pub const FuncGen = struct { } }, }, - .Union => return self.unionFieldPtr(inst, struct_ptr, struct_ty, field_index), + .Union => return self.unionFieldPtr(inst, struct_ptr, struct_ty), else => unreachable, } } @@ -9061,16 +9061,13 @@ pub const FuncGen = struct { inst: Air.Inst.Index, union_ptr: *const llvm.Value, union_ty: Type, - field_index: c_uint, ) !?*const llvm.Value { - const union_obj = union_ty.cast(Type.Payload.Union).?.data; - const field = &union_obj.fields.values()[field_index]; const result_llvm_ty = try self.dg.lowerType(self.air.typeOfIndex(inst)); - if (!field.ty.hasRuntimeBitsIgnoreComptime()) { - return null; - } const target = self.dg.module.getTarget(); const layout = union_ty.unionGetLayout(target); + if (layout.payload_size == 0) { + return self.builder.buildBitCast(union_ptr, result_llvm_ty, ""); + } const payload_index = @boolToInt(layout.tag_align >= layout.payload_align); const union_field_ptr = self.builder.buildStructGEP(union_ptr, payload_index, ""); return self.builder.buildBitCast(union_field_ptr, result_llvm_ty, ""); @@ -9677,22 +9674,7 @@ fn lowerFnRetTy(dg: *DeclGen, fn_info: Type.Payload.Function.Data) !*const llvm. } }, .C => { - const is_scalar = switch (fn_info.return_type.zigTypeTag()) { - .Void, - .Bool, - .NoReturn, - .Int, - .Float, - .Pointer, - .Optional, - .ErrorSet, - .Enum, - .AnyFrame, - .Vector, - => true, - - else => false, - }; + const is_scalar = isScalar(fn_info.return_type); switch (target.cpu.arch) { .mips, .mipsel => return dg.lowerType(fn_info.return_type), .x86_64 => switch (target.os.tag) { @@ -9705,6 +9687,7 @@ fn lowerFnRetTy(dg: *DeclGen, fn_info: Type.Payload.Function.Data) !*const llvm. return dg.context.intType(@intCast(c_uint, abi_size * 8)); } }, + .win_i128 => return dg.context.intType(64).vectorType(2), .memory => return dg.context.voidType(), .sse => return dg.lowerType(fn_info.return_type), else => unreachable, @@ -9745,6 +9728,7 @@ fn lowerFnRetTy(dg: *DeclGen, fn_info: Type.Payload.Function.Data) !*const llvm. @panic("TODO"); }, .memory => unreachable, // handled above + .win_i128 => unreachable, // windows only .none => break, } } @@ -9840,22 +9824,7 @@ const ParamTypeIterator = struct { @panic("TODO implement async function lowering in the LLVM backend"); }, .C => { - const is_scalar = switch (ty.zigTypeTag()) { - .Void, - .Bool, - .NoReturn, - .Int, - .Float, - .Pointer, - .Optional, - .ErrorSet, - .Enum, - .AnyFrame, - .Vector, - => true, - - else => false, - }; + const is_scalar = isScalar(ty); switch (it.target.cpu.arch) { .riscv32, .riscv64 => { it.zig_index += 1; @@ -9884,6 +9853,11 @@ const ParamTypeIterator = struct { return .abi_sized_int; } }, + .win_i128 => { + it.zig_index += 1; + it.llvm_index += 1; + return .byref; + }, .memory => { it.zig_index += 1; it.llvm_index += 1; @@ -9938,6 +9912,7 @@ const ParamTypeIterator = struct { @panic("TODO"); }, .memory => unreachable, // handled above + .win_i128 => unreachable, // windows only .none => break, } } @@ -10109,6 +10084,27 @@ fn isByRef(ty: Type) bool { } } +fn isScalar(ty: Type) bool { + return switch (ty.zigTypeTag()) { + .Void, + .Bool, + .NoReturn, + .Int, + .Float, + .Pointer, + .Optional, + .ErrorSet, + .Enum, + .AnyFrame, + .Vector, + => true, + + .Struct => ty.containerLayout() == .Packed, + .Union => ty.containerLayout() == .Packed, + else => false, + }; +} + /// This function returns true if we expect LLVM to lower x86_fp80 correctly /// and false if we expect LLVM to crash if it counters an x86_fp80 type. fn backendSupportsF80(target: std.Target) bool { |