40 lines
830 B
Rust
40 lines
830 B
Rust
// This test case checks that slice::{r}position functions do not
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// prevent optimizing away bounds checks
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// compile-flags: -O
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// ignore-debug: the debug assertions get in the way
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#![crate_type="rlib"]
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// CHECK-LABEL: @test
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#[no_mangle]
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pub fn test(y: &[u32], x: &u32, z: &u32) -> bool {
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let result = match y.iter().position(|a| a == x) {
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Some(p) => Ok(p),
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None => Err(()),
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};
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if let Ok(p) = result {
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// CHECK-NOT: panic
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y[p] == *z
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} else {
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false
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}
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}
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// CHECK-LABEL: @rtest
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#[no_mangle]
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pub fn rtest(y: &[u32], x: &u32, z: &u32) -> bool {
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let result = match y.iter().rposition(|a| a == x) {
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Some(p) => Ok(p),
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None => Err(()),
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};
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if let Ok(p) = result {
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// CHECK-NOT: panic
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y[p] == *z
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} else {
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false
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}
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}
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