| // Verify that `i32::cmp` FnDef type is declared with size 0 and align 1 in LLVM debuginfo. |
| // compile-flags: -O -g -Cno-prepopulate-passes |
| // ignore-msvc the types are mangled differently |
| |
| use std::cmp::Ordering; |
| |
| fn foo<F: FnOnce(&i32, &i32) -> Ordering>(v1: i32, v2: i32, compare: F) -> Ordering { |
| compare(&v1, &v2) |
| } |
| |
| pub fn main() { |
| foo(0, 1, i32::cmp); |
| } |
| |
| // CHECK: %compare.dbg.spill = alloca {}, align 1 |
| // CHECK: call void @llvm.dbg.declare(metadata ptr %compare.dbg.spill, metadata ![[VAR:.*]], metadata !DIExpression()), !dbg !{{.*}} |
| // CHECK: ![[TYPE:.*]] = !DIDerivedType(tag: DW_TAG_pointer_type, name: "fn(&i32, &i32) -> core::cmp::Ordering", baseType: !{{.*}}, align: 1, dwarfAddressSpace: {{.*}}) |
| // CHECK: ![[VAR]] = !DILocalVariable(name: "compare", scope: !{{.*}}, file: !{{.*}}, line: {{.*}}, type: ![[TYPE]], align: 1) |
