27 lines
790 B
Rust
27 lines
790 B
Rust
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// no-system-llvm
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// compile-flags: -O
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#![crate_type = "lib"]
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// CHECK-LABEL: @already_sliced_no_bounds_check
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#[no_mangle]
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pub fn already_sliced_no_bounds_check(a: &[u8], b: &[u8], c: &mut [u8]) {
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// CHECK: slice_index_len_fail
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// CHECK-NOT: panic_bounds_check
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let _ = (&a[..2048], &b[..2048], &mut c[..2048]);
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for i in 0..1024 {
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c[i] = a[i] ^ b[i];
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}
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}
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// make sure we're checking for the right thing: there can be a panic if the slice is too small
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// CHECK-LABEL: @already_sliced_bounds_check
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#[no_mangle]
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pub fn already_sliced_bounds_check(a: &[u8], b: &[u8], c: &mut [u8]) {
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// CHECK: slice_index_len_fail
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// CHECK: panic_bounds_check
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let _ = (&a[..1023], &b[..2048], &mut c[..2048]);
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for i in 0..1024 {
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c[i] = a[i] ^ b[i];
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}
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}
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