diff options
Diffstat (limited to 'src/test/codegen/issue-75525-bounds-checks.rs')
-rw-r--r-- | src/test/codegen/issue-75525-bounds-checks.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/test/codegen/issue-75525-bounds-checks.rs b/src/test/codegen/issue-75525-bounds-checks.rs new file mode 100644 index 000000000..2d363d8f7 --- /dev/null +++ b/src/test/codegen/issue-75525-bounds-checks.rs @@ -0,0 +1,26 @@ +// Regression test for #75525, verifies that no bounds checks are generated. + +// 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 } +} |