mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-01 22:02:45 +01:00
Richard Smith
6e9d83e746
Basic support for type-checking and lowering of `while` statements, as well as `break` and `continue`.
67 lines
2.3 KiB
Plaintext
67 lines
2.3 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 A() -> bool;
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fn B() -> bool;
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fn C() -> bool;
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fn While() {
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while (A()) {
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if (B()) { continue; }
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if (C()) { break; }
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}
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}
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// CHECK:STDOUT: ; ModuleID = 'break_continue.carbon'
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// CHECK:STDOUT: source_filename = "break_continue.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare i1 @A()
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare i1 @B()
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare i1 @C()
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// CHECK:STDOUT:
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// CHECK:STDOUT: define void @While() {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: br label %0
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// CHECK:STDOUT:
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// CHECK:STDOUT: 0: ; preds = %entry, %8, %4
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// CHECK:STDOUT: %A = call i1 @A()
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// CHECK:STDOUT: %temp = alloca i1, align 1
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// CHECK:STDOUT: store i1 %A, ptr %temp, align 1
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// CHECK:STDOUT: %1 = load i1, ptr %temp, align 1
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// CHECK:STDOUT: br i1 %1, label %2, label %9
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// CHECK:STDOUT:
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// CHECK:STDOUT: 2: ; preds = %0
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// CHECK:STDOUT: %B = call i1 @B()
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// CHECK:STDOUT: %temp1 = alloca i1, align 1
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// CHECK:STDOUT: store i1 %B, ptr %temp1, align 1
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// CHECK:STDOUT: %3 = load i1, ptr %temp1, align 1
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// CHECK:STDOUT: br i1 %3, label %4, label %5
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// CHECK:STDOUT:
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// CHECK:STDOUT: 4: ; preds = %2
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// CHECK:STDOUT: br label %0
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// CHECK:STDOUT:
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// CHECK:STDOUT: 5: ; preds = %2
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// CHECK:STDOUT: %C = call i1 @C()
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// CHECK:STDOUT: %temp2 = alloca i1, align 1
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// CHECK:STDOUT: store i1 %C, ptr %temp2, align 1
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// CHECK:STDOUT: %6 = load i1, ptr %temp2, align 1
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// CHECK:STDOUT: br i1 %6, label %7, label %8
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// CHECK:STDOUT:
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// CHECK:STDOUT: 7: ; preds = %5
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// CHECK:STDOUT: br label %9
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// CHECK:STDOUT:
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// CHECK:STDOUT: 8: ; preds = %5
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// CHECK:STDOUT: br label %0
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// CHECK:STDOUT:
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// CHECK:STDOUT: 9: ; preds = %7, %0
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// CHECK:STDOUT: ret void
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; uselistorder directives
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// CHECK:STDOUT: uselistorder label %0, { 1, 2, 0 }
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// CHECK:STDOUT: }
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