| //@ 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", |