1# RUN: llc -mtriple=x86_64-unknown-windows-msvc -start-before=x86-flags-copy-lowering -o - %s | FileCheck %s
2#
3# Test the emission of heap alloc site instruction labels.
4
5--- |
6  declare i8* @alloc(i32) nounwind
7
8  define i32 @test(i32 %x) nounwind !dbg !6 {
9  entry:
10    call i8* @alloc(i32 %x), !dbg !11, !heapallocsite !2
11    ret i32 0, !dbg !12
12  }
13
14  !llvm.dbg.cu = !{!0}
15  !llvm.module.flags = !{!3, !4, !5}
16
17  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
18  !1 = !DIFile(filename: "<stdin>", directory: "")
19  !2 = !{}
20  !3 = !{i32 2, !"CodeView", i32 1}
21  !4 = !{i32 2, !"Debug Info Version", i32 3}
22  !5 = !{i32 1, !"wchar_size", i32 2}
23  !6 = distinct !DISubprogram(name: "test", scope: !7, file: !7, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
24  !7 = !DIFile(filename: "test.c", directory: "")
25  !8 = !DISubroutineType(types: !9)
26  !9 = !{!10, !10}
27  !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
28  !11 = !DILocation(line: 3, scope: !6)
29  !12 = !DILocation(line: 4, scope: !6)
30
31...
32---
33name: test
34# CHECK-LABEL: {{^}}test:
35tracksRegLiveness: true
36frameInfo:
37  hasCalls: true
38body: |
39  bb.0.entry:
40    liveins: $ecx
41
42    ADJCALLSTACKDOWN64 32, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp, debug-location !11
43    CALL64pcrel32 @alloc, csr_win64, implicit $rsp, implicit $ssp, implicit $ecx, implicit-def $rsp, implicit-def $ssp, implicit-def dead $rax, heap-alloc-marker !2, debug-location !11
44  ; CHECK:      callq alloc
45  ; CHECK-NEXT: .Ltmp{{.*}}:
46    ADJCALLSTACKUP64 32, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp, debug-location !11
47    $eax = MOV32r0 implicit-def dead $eflags, debug-location !12
48    RET 0, killed $eax, debug-location !12
49
50...
51