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Rollup merge of #82799 - bugadani:codegen-tests, r=nagisa

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Add regression test for #75525
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Mara Bos 2021-03-09 09:05:23 +00:00 • committed by GitHub
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src/test/codegen/issue-75525-bounds-checks.rs Normal file
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// Regression test for #75525, verifies that no bounds checks are generated.
// min-llvm-version: 12.0.0
// compile-flags: -O
#![crate_type = "lib"]
// CHECK-LABEL: @f0
// CHECK-NOT: panic
#[no_mangle]
pub fn f0(idx: usize, buf: &[u8; 10]) -> u8 {
if idx < 8 { buf[idx + 1] } else { 0 }
}
// CHECK-LABEL: @f1
// CHECK-NOT: panic
#[no_mangle]
pub fn f1(idx: usize, buf: &[u8; 10]) -> u8 {
if idx > 5 && idx < 8 { buf[idx - 1] } else { 0 }
}
// CHECK-LABEL: @f2
// CHECK-NOT: panic
#[no_mangle]
pub fn f2(idx: usize, buf: &[u8; 10]) -> u8 {
if idx > 5 && idx < 8 { buf[idx] } else { 0 }
}