mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 07:01:04 +01:00
Richard Smith
428d11323a
If the initializing representation is the same as the value representation, don't materialize a temporary and perform a value binding. Instead, directly extract the value, using a new `value_of_initializer` node. This removes a lot of redundant `alloca`s from our generated LLVM IR.
67 lines
2.0 KiB
Plaintext
67 lines
2.0 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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class Class {
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fn F(n: i32) -> i32 {
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return n;
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}
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fn G(n: i32) -> i32;
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var k: i32;
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}
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fn Class.G(n: i32) -> i32 {
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return n;
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}
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fn Run() -> i32 {
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return Class.F(4);
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}
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// CHECK:STDOUT: file "basic.carbon" {
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// CHECK:STDOUT: class_declaration @Class, ()
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// CHECK:STDOUT: %Class: type = class_type @Class
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// CHECK:STDOUT: %.loc15: type = struct_type {.k: i32}
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// CHECK:STDOUT: %G: <function> = fn_decl @G
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// CHECK:STDOUT: %Run: <function> = fn_decl @Run
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: class @Class {
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// CHECK:STDOUT: %F: <function> = fn_decl @F
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// CHECK:STDOUT: %G: <function> = fn_decl @G
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// CHECK:STDOUT: %.loc14_8.1: type = unbound_field_type Class, i32
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// CHECK:STDOUT: %.loc14_8.2: <unbound field of class Class> = field "k", member0
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// CHECK:STDOUT: %k: <unbound field of class Class> = bind_name "k", %.loc14_8.2
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .F = %F
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// CHECK:STDOUT: .G = %G
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// CHECK:STDOUT: .k = %k
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F(%n: i32) -> i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %n.ref: i32 = name_reference "n", %n
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// CHECK:STDOUT: return %n.ref
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @G(%n: i32) -> i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %n.ref: i32 = name_reference "n", %n
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// CHECK:STDOUT: return %n.ref
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @Run() -> i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %Class.ref: type = name_reference "Class", file.%Class
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// CHECK:STDOUT: %F.ref: <function> = name_reference "F", @Class.%F
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// CHECK:STDOUT: %.loc22_18: i32 = int_literal 4
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// CHECK:STDOUT: %.loc22_17: init i32 = call %F.ref(%.loc22_18)
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// CHECK:STDOUT: %.loc22_20: i32 = value_of_initializer %.loc22_17
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// CHECK:STDOUT: return %.loc22_20
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// CHECK:STDOUT: }
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