| //@ compile-flags: -g -Zmir-opt-level=0 -Zmir-enable-passes=+ScalarReplacementOfAggregates |
| //@ compile-flags: -Cno-prepopulate-passes |
| // |
| // Tested offsets are only correct for x86_64. |
| //@ only-x86_64 |
| |
| #![crate_type = "lib"] |
| |
| pub struct ExtraSlice<'input> { |
| slice: &'input [u8], |
| extra: u32, |
| } |
| |
| #[no_mangle] |
| pub fn extra(s: &[u8]) { |
| // CHECK: void @extra( |
| // CHECK: %slice.dbg.spill1 = alloca [4 x i8], |
| // CHECK: %slice.dbg.spill = alloca [16 x i8], |
| // CHECK: %s.dbg.spill = alloca [16 x i8], |
| // CHECK: dbg{{.}}declare({{(metadata )?}}ptr %s.dbg.spill, {{(metadata )?}}![[S_EXTRA:.*]], {{(metadata )?}}!DIExpression() |
| // CHECK: dbg{{.}}declare({{(metadata )?}}ptr %slice.dbg.spill, {{(metadata )?}}![[SLICE_EXTRA:.*]], {{(metadata )?}}!DIExpression(DW_OP_LLVM_fragment, 0, 128) |
| // CHECK: dbg{{.}}declare({{(metadata )?}}ptr %slice.dbg.spill1, {{(metadata )?}}![[SLICE_EXTRA]], {{(metadata )?}}!DIExpression(DW_OP_LLVM_fragment, 128, 32) |
| let slice = ExtraSlice { slice: s, extra: s.len() as u32 }; |
| } |
| |
| struct Zst; |
| |
| pub struct ZstSlice<'input> { |
| slice: &'input [u8], |
| extra: Zst, |
| } |
| |
| #[no_mangle] |
| pub fn zst(s: &[u8]) { |
| // The field `extra` is a ZST. The fragment for the field `slice` encompasses the whole |
| // variable, so is not a fragment. In that case, the variable must have no fragment. |
| |
| // CHECK: void @zst( |
| // CHECK-NOT: dbg{{.}}declare({{(metadata )?}}ptr %slice.dbg.spill, {{(metadata )?}}!{}, {{(metadata )?}}!DIExpression(DW_OP_LLVM_fragment, |
| // CHECK: dbg{{.}}declare({{(metadata )?}}ptr %{{.*}}, {{(metadata )?}}![[SLICE_ZST:.*]], {{(metadata )?}}!DIExpression() |
| // CHECK-NOT: dbg{{.}}declare({{(metadata )?}}ptr %{{.*}}, {{(metadata )?}}![[SLICE_ZST]], |
| let slice = ZstSlice { slice: s, extra: Zst }; |
| } |
| |
| // CHECK: ![[S_EXTRA]] = !DILocalVariable(name: "s", |
| // CHECK: ![[SLICE_EXTRA]] = !DILocalVariable(name: "slice", |
