| // Verify that `i32::cmp` FnDef type is declared with a size of 0 and an | |
| // alignment of 8 bits (1 byte) in LLVM debuginfo. | |
| //@ compile-flags: -Copt-level=3 -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 [0 x i8], align 1 | |
| // CHECK: dbg{{.}}declare({{(metadata )?}}ptr %compare.dbg.spill, {{(metadata )?}}![[VAR:.*]], {{(metadata )?}}!DIExpression() | |
| // CHECK-DAG: ![[TYPE:.*]] = !DIDerivedType(tag: DW_TAG_pointer_type, name: "fn(&i32, &i32) -> core::cmp::Ordering", baseType: !{{.*}}, align: 8, dwarfAddressSpace: {{.*}}) | |
| // CHECK-DAG: ![[VAR]] = !DILocalVariable(name: "compare", scope: !{{.*}}, file: !{{.*}}, line: {{.*}}, type: ![[TYPE]], align: 8) |