25 lines
519 B
Rust
25 lines
519 B
Rust
// This test checks an optimization that is not guaranteed to work. This test case should not block
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// a future LLVM update.
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//@ compile-flags: -O
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#![crate_type = "lib"]
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pub enum Bar {
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A = 1,
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B = 3,
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}
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// CHECK-LABEL: @lookup_inc
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#[no_mangle]
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pub fn lookup_inc(buf: &[u8; 5], f: Bar) -> u8 {
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// CHECK-NOT: panic_bounds_check
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buf[f as usize + 1]
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}
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// CHECK-LABEL: @lookup_dec
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#[no_mangle]
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pub fn lookup_dec(buf: &[u8; 5], f: Bar) -> u8 {
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// CHECK-NOT: panic_bounds_check
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buf[f as usize - 1]
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}
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