rust/tests/codegen/issues/issue-105386-ub-in-debuginfo.rs
Nicholas Nethercote 72800d3b89 Run rustfmt on tests/codegen/.
Except for `simd-intrinsic/`, which has a lot of files containing
multiple types like `u8x64` which really are better when hand-formatted.

There is a surprising amount of two-space indenting in this directory.

Non-trivial changes:
- `rustfmt::skip` needed in `debug-column.rs` to preserve meaning of the
  test.
- `rustfmt::skip` used in a few places where hand-formatting read more
  nicely: `enum/enum-match.rs`
- Line number adjustments needed for the expected output of
  `debug-column.rs` and `coroutine-debug.rs`.
2024-05-31 15:56:43 +10:00

25 lines
887 B
Rust

//@ compile-flags: --crate-type=lib -O -Cdebuginfo=2 -Cno-prepopulate-passes -Zmir-enable-passes=-ScalarReplacementOfAggregates
// MIR SROA will decompose the closure
#![feature(stmt_expr_attributes)]
pub struct S([usize; 8]);
#[no_mangle]
pub fn outer_function(x: S, y: S) -> usize {
(#[inline(always)]
|| {
let _z = x;
y.0[0]
})()
}
// Check that we do not attempt to load from the spilled arg before it is assigned to
// when generating debuginfo.
// CHECK-LABEL: @outer_function
// CHECK: [[spill:%.*]] = alloca
// CHECK-NOT: [[ptr_tmp:%.*]] = getelementptr inbounds i8, ptr [[spill]]
// CHECK-NOT: [[load:%.*]] = load ptr, ptr
// CHECK: call void @llvm.lifetime.start{{.*}}({{.*}}, ptr [[spill]])
// CHECK: [[inner:%.*]] = getelementptr inbounds i8, ptr [[spill]]
// CHECK: call void @llvm.memcpy{{.*}}(ptr {{align .*}} [[inner]], ptr {{align .*}} %x