mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-02 06:55:55 +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.
54 lines
2.4 KiB
Plaintext
54 lines
2.4 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() {
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// 8 and 9 trigger special behavior in APInt when mishandling signed versus
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// unsigned, so we pay extra attention to those.
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var ints: [i32; 4] = (
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8,
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9,
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0x8,
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0b1000,
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);
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var floats: [f64; 6] = (
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0.9,
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8.0,
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80.0,
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1.0e7,
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1.0e8,
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1.0e-8,
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);
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}
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// CHECK:STDOUT: ; ModuleID = 'numeric_literals.carbon'
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// CHECK:STDOUT: source_filename = "numeric_literals.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: define void @F() {
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// CHECK:STDOUT: %ints = alloca [4 x i32], align 4
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// CHECK:STDOUT: %array.index = getelementptr inbounds [4 x i32], ptr %ints, i32 0, i32 0
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// CHECK:STDOUT: store i32 8, ptr %array.index, align 4
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// CHECK:STDOUT: %array.index1 = getelementptr inbounds [4 x i32], ptr %ints, i32 0, i32 1
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// CHECK:STDOUT: store i32 9, ptr %array.index1, align 4
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// CHECK:STDOUT: %array.index2 = getelementptr inbounds [4 x i32], ptr %ints, i32 0, i32 2
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// CHECK:STDOUT: store i32 8, ptr %array.index2, align 4
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// CHECK:STDOUT: %array.index3 = getelementptr inbounds [4 x i32], ptr %ints, i32 0, i32 3
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// CHECK:STDOUT: store i32 8, ptr %array.index3, align 4
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// CHECK:STDOUT: %floats = alloca [6 x double], align 8
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// CHECK:STDOUT: %array.index4 = getelementptr inbounds [6 x double], ptr %floats, i32 0, i32 0
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// CHECK:STDOUT: store double 9.000000e-01, ptr %array.index4, align 8
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// CHECK:STDOUT: %array.index5 = getelementptr inbounds [6 x double], ptr %floats, i32 0, i32 1
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// CHECK:STDOUT: store double 8.000000e+00, ptr %array.index5, align 8
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// CHECK:STDOUT: %array.index6 = getelementptr inbounds [6 x double], ptr %floats, i32 0, i32 2
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// CHECK:STDOUT: store double 8.000000e+01, ptr %array.index6, align 8
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// CHECK:STDOUT: %array.index7 = getelementptr inbounds [6 x double], ptr %floats, i32 0, i32 3
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// CHECK:STDOUT: store double 1.000000e+07, ptr %array.index7, align 8
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// CHECK:STDOUT: %array.index8 = getelementptr inbounds [6 x double], ptr %floats, i32 0, i32 4
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// CHECK:STDOUT: store double 1.000000e+08, ptr %array.index8, align 8
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// CHECK:STDOUT: %array.index9 = getelementptr inbounds [6 x double], ptr %floats, i32 0, i32 5
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// CHECK:STDOUT: store double 1.000000e-08, ptr %array.index9, align 8
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// CHECK:STDOUT: ret void
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// CHECK:STDOUT: }
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