29 lines
555 B
Rust
29 lines
555 B
Rust
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// compile-flags: -C opt-level=3
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#![crate_type = "lib"]
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// Verify that we don't miscompile this even if rustc didn't apply the trivial loop detection to
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// insert the sideeffect intrinsic.
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fn infinite_loop() -> u8 {
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let mut x = 0;
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// CHECK-NOT: sideeffect
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loop {
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if x == 42 {
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x = 0;
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} else {
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x = 42;
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}
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}
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}
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// CHECK-LABEL: @test
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#[no_mangle]
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fn test() -> u8 {
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// CHECK-NOT: unreachable
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// CHECK: br label %{{.+}}
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// CHECK-NOT: unreachable
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let x = infinite_loop();
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x
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}
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