2023-09-18 16:29:50 +00:00
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// Verify that `i32::cmp` FnDef type is declared with size 0 and align 1 in LLVM debuginfo.
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// compile-flags: -O -g -Cno-prepopulate-passes
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2023-10-08 16:43:57 +00:00
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// ignore-msvc the types are mangled differently
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2023-09-18 16:29:50 +00:00
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use std::cmp::Ordering;
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fn foo<F: FnOnce(&i32, &i32) -> Ordering>(v1: i32, v2: i32, compare: F) -> Ordering {
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compare(&v1, &v2)
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}
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pub fn main() {
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foo(0, 1, i32::cmp);
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}
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// CHECK: %compare.dbg.spill = alloca {}, align 1
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// CHECK: call void @llvm.dbg.declare(metadata ptr %compare.dbg.spill, metadata ![[VAR:.*]], metadata !DIExpression()), !dbg !{{.*}}
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// CHECK: ![[TYPE:.*]] = !DIDerivedType(tag: DW_TAG_pointer_type, name: "fn(&i32, &i32) -> core::cmp::Ordering", baseType: !{{.*}}, align: 1, dwarfAddressSpace: {{.*}})
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// CHECK: ![[VAR]] = !DILocalVariable(name: "compare", scope: !{{.*}}, file: !{{.*}}, line: {{.*}}, type: ![[TYPE]], align: 1)
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