diff options
Diffstat (limited to 'tests/codegen')
| -rw-r--r-- | tests/codegen/debug-fndef-size.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/codegen/debug-fndef-size.rs b/tests/codegen/debug-fndef-size.rs new file mode 100644 index 00000000000..80eb35fa32a --- /dev/null +++ b/tests/codegen/debug-fndef-size.rs @@ -0,0 +1,18 @@ +// 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) |