mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Richard Smith
842b471e67
This implements initializing expression semantics for structs and tuples, following #2006 and discussions since. Tuple and (and analogously, struct) literals are treated as having a mixed expression category that is later resolved based on how the literal is used, as either a tuple initializer or a tuple value, at which point we create a `TupleInit` or `TupleValue` that represents the formation of the tuple initializer or tuple value from the tuple literal. There's quite a lot of TODOs here, and the SemIR representation is still not quite right, but this seems like a good place to checkpoint some incremental progress.
38 lines
1.5 KiB
Plaintext
38 lines
1.5 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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fn F(arr: [i32; 3], i: i32) -> i32 {
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return arr[i];
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}
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fn G() -> i32 {
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return F((1, 2, 3), 1);
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}
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// CHECK:STDOUT: ; ModuleID = 'function_param.carbon'
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// CHECK:STDOUT: source_filename = "function_param.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: define i32 @F(ptr %arr, i32 %i) {
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// CHECK:STDOUT: %array.index = getelementptr inbounds [3 x i32], ptr %arr, i32 0, i32 %i
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// CHECK:STDOUT: %1 = load i32, ptr %array.index, align 4
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// CHECK:STDOUT: ret i32 %1
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: define i32 @G() {
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// CHECK:STDOUT: %temp = alloca [3 x i32], align 4
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// CHECK:STDOUT: %array.index = getelementptr inbounds [3 x i32], ptr %temp, i32 0, i32 0
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// CHECK:STDOUT: store i32 1, ptr %array.index, align 4
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// CHECK:STDOUT: %array.index1 = getelementptr inbounds [3 x i32], ptr %temp, i32 0, i32 1
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// CHECK:STDOUT: store i32 2, ptr %array.index1, align 4
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// CHECK:STDOUT: %array.index2 = getelementptr inbounds [3 x i32], ptr %temp, i32 0, i32 2
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// CHECK:STDOUT: store i32 3, ptr %array.index2, align 4
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// CHECK:STDOUT: %F = call i32 @F(ptr %temp, i32 1)
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// CHECK:STDOUT: %temp3 = alloca i32, align 4
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// CHECK:STDOUT: store i32 %F, ptr %temp3, align 4
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// CHECK:STDOUT: %1 = load i32, ptr %temp3, align 4
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// CHECK:STDOUT: ret i32 %1
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// CHECK:STDOUT: }
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