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//@ 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",
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