mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Richard Smith
1b335402d1
Move completeness check to the point where the function is defined or first called. This means we also defer deciding whether the function has a return slot until that point. Instead of storing a return slot per function, store the location of the return storage, which may or may not be used, and compute and store a separate flag saying whether to use it at the point of first use or definition. This is the final piece in supporting simple `Make` functions in classes as a replacement for constructors.
51 lines
1.8 KiB
Plaintext
51 lines
1.8 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
|
|
// Exceptions. See /LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
// AUTOUPDATE
|
|
|
|
fn F() -> i32 {
|
|
var n: i32 = 0;
|
|
var p: i32* = &n;
|
|
|
|
return *p;
|
|
}
|
|
|
|
// CHECK:STDOUT: --- basic.carbon
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: constants {
|
|
// CHECK:STDOUT: %.1: i32 = int_literal 0 [template]
|
|
// CHECK:STDOUT: %.2: type = ptr_type i32 [template]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: file {
|
|
// CHECK:STDOUT: package: <namespace> = namespace [template] {
|
|
// CHECK:STDOUT: .Core = %Core
|
|
// CHECK:STDOUT: .F = %F
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %Core: <namespace> = namespace [template] {}
|
|
// CHECK:STDOUT: %F: <function> = fn_decl @F [template] {
|
|
// CHECK:STDOUT: @F.%return: ref i32 = var <return slot>
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: fn @F() -> i32 {
|
|
// CHECK:STDOUT: !entry:
|
|
// CHECK:STDOUT: %n.var: ref i32 = var n
|
|
// CHECK:STDOUT: %n: ref i32 = bind_name n, %n.var
|
|
// CHECK:STDOUT: %.loc8: i32 = int_literal 0 [template = constants.%.1]
|
|
// CHECK:STDOUT: assign %n.var, %.loc8
|
|
// CHECK:STDOUT: %.loc9_13: type = ptr_type i32 [template = constants.%.2]
|
|
// CHECK:STDOUT: %p.var: ref i32* = var p
|
|
// CHECK:STDOUT: %p: ref i32* = bind_name p, %p.var
|
|
// CHECK:STDOUT: %n.ref: ref i32 = name_ref n, %n
|
|
// CHECK:STDOUT: %.loc9_17: i32* = addr_of %n.ref
|
|
// CHECK:STDOUT: assign %p.var, %.loc9_17
|
|
// CHECK:STDOUT: %p.ref: ref i32* = name_ref p, %p
|
|
// CHECK:STDOUT: %.loc11_11: i32* = bind_value %p.ref
|
|
// CHECK:STDOUT: %.loc11_10.1: ref i32 = deref %.loc11_11
|
|
// CHECK:STDOUT: %.loc11_10.2: i32 = bind_value %.loc11_10.1
|
|
// CHECK:STDOUT: return %.loc11_10.2
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|