diff options
| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-21 14:34:12 +0200 |
|---|---|---|
| committer | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-22 14:28:48 +0200 |
| commit | a27f3e3fd1e4d16160f8885b6b06665b5319f56c (patch) | |
| tree | b033935392cbadf6f85d2dbddf433a88e323aeeb /tests/codegen-llvm/issues/issue-105386-ub-in-debuginfo.rs | |
| parent | ed93c1783b404d728d4809973a0550eb33cd293f (diff) | |
| download | rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.tar.gz rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.zip | |
Rename `tests/codegen` into `tests/codegen-llvm`
Diffstat (limited to 'tests/codegen-llvm/issues/issue-105386-ub-in-debuginfo.rs')
| -rw-r--r-- | tests/codegen-llvm/issues/issue-105386-ub-in-debuginfo.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/codegen-llvm/issues/issue-105386-ub-in-debuginfo.rs b/tests/codegen-llvm/issues/issue-105386-ub-in-debuginfo.rs new file mode 100644 index 00000000000..848aa910b58 --- /dev/null +++ b/tests/codegen-llvm/issues/issue-105386-ub-in-debuginfo.rs @@ -0,0 +1,24 @@ +//@ compile-flags: --crate-type=lib -Copt-level=3 -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 |