20 lines
491 B
Rust
20 lines
491 B
Rust
// min-llvm-version: 15.0.0
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// ignore-debug: The debug assertions get in the way
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// compile-flags: -O
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#![crate_type = "lib"]
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// There should be no calls to panic / len_mismatch_fail.
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#[no_mangle]
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pub fn test(a: &mut [u8], offset: usize, bytes: &[u8]) {
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// CHECK-LABEL: @test(
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// CHECK-NOT: call
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// CHECK: call void @llvm.memcpy
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// CHECK-NOT: call
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// CHECK: }
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if let Some(dst) = a.get_mut(offset..offset + bytes.len()) {
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dst.copy_from_slice(bytes);
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}
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}
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