1; RUN: llc < %s -experimental-debug-variable-locations=true | FileCheck %s 2 3; C source: 4; void escape(int *); 5; int ssp(int a) { 6; int arr[4] = {a, a, a, a}; 7; escape(&arr[0]); 8; return a; 9; } 10 11; CHECK: _ssp: # @ssp 12; CHECK: .cv_fpo_proc _ssp 4 13; CHECK: pushl %esi 14; CHECK: .cv_fpo_pushreg %esi 15; CHECK: subl $20, %esp 16; CHECK: .cv_fpo_stackalloc 20 17; CHECK: .cv_fpo_endprologue 18; CHECK: ___security_cookie 19 20; CHECK: movl 28(%esp), %esi 21; CHECK: movl %esi, {{[0-9]*}}(%esp) 22; CHECK: movl %esi, {{[0-9]*}}(%esp) 23; CHECK: movl %esi, {{[0-9]*}}(%esp) 24; CHECK: movl %esi, {{[0-9]*}}(%esp) 25 26; CHECK: calll _escape 27; CHECK: calll @__security_check_cookie@4 28 29; CHECK: movl %esi, %eax 30; CHECK: addl $20, %esp 31; CHECK: popl %esi 32; CHECK: retl 33; CHECK: Ltmp4: 34; CHECK: .cv_fpo_endproc 35 36; ModuleID = 't.c' 37source_filename = "t.c" 38target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" 39target triple = "i386-pc-windows-msvc19.11.25508" 40 41; Function Attrs: nounwind sspstrong 42define i32 @ssp(i32 returned %a) local_unnamed_addr #0 !dbg !8 { 43entry: 44 %arr = alloca [4 x i32], align 4 45 tail call void @llvm.dbg.value(metadata i32 %a, metadata !13, metadata !DIExpression()), !dbg !18 46 call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %arr) #4, !dbg !19 47 tail call void @llvm.dbg.declare(metadata ptr %arr, metadata !14, metadata !DIExpression()), !dbg !20 48 store i32 %a, ptr %arr, align 4, !dbg !21, !tbaa !22 49 %arrayinit.element = getelementptr inbounds [4 x i32], ptr %arr, i32 0, i32 1, !dbg !21 50 store i32 %a, ptr %arrayinit.element, align 4, !dbg !21, !tbaa !22 51 %arrayinit.element1 = getelementptr inbounds [4 x i32], ptr %arr, i32 0, i32 2, !dbg !21 52 store i32 %a, ptr %arrayinit.element1, align 4, !dbg !21, !tbaa !22 53 %arrayinit.element2 = getelementptr inbounds [4 x i32], ptr %arr, i32 0, i32 3, !dbg !21 54 store i32 %a, ptr %arrayinit.element2, align 4, !dbg !21, !tbaa !22 55 call void @escape(ptr nonnull %arr) #4, !dbg !26 56 call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %arr) #4, !dbg !27 57 ret i32 %a, !dbg !28 58} 59 60; Function Attrs: nounwind readnone speculatable 61declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 62 63; Function Attrs: argmemonly nounwind 64declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #2 65 66declare void @escape(ptr) local_unnamed_addr #3 67 68; Function Attrs: argmemonly nounwind 69declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #2 70 71; Function Attrs: nounwind readnone speculatable 72declare void @llvm.dbg.value(metadata, metadata, metadata) #1 73 74attributes #0 = { nounwind sspstrong "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 75attributes #1 = { nounwind readnone speculatable } 76attributes #2 = { argmemonly nounwind } 77attributes #3 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 78attributes #4 = { nounwind } 79 80!llvm.dbg.cu = !{!0} 81!llvm.module.flags = !{!3, !4, !5, !6} 82!llvm.ident = !{!7} 83 84!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 85!1 = !DIFile(filename: "t.c", directory: "C:\5Csrc\5Cllvm-project\5Cbuild", checksumkind: CSK_MD5, checksum: "df0c1a43acd19a1255d45a3f2802cf9f") 86!2 = !{} 87!3 = !{i32 1, !"NumRegisterParameters", i32 0} 88!4 = !{i32 2, !"CodeView", i32 1} 89!5 = !{i32 2, !"Debug Info Version", i32 3} 90!6 = !{i32 1, !"wchar_size", i32 2} 91!7 = !{!"clang version 6.0.0 "} 92!8 = distinct !DISubprogram(name: "ssp", scope: !1, file: !1, line: 2, type: !9, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !12) 93!9 = !DISubroutineType(types: !10) 94!10 = !{!11, !11} 95!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 96!12 = !{!13, !14} 97!13 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 2, type: !11) 98!14 = !DILocalVariable(name: "arr", scope: !8, file: !1, line: 3, type: !15) 99!15 = !DICompositeType(tag: DW_TAG_array_type, baseType: !11, size: 128, elements: !16) 100!16 = !{!17} 101!17 = !DISubrange(count: 4) 102!18 = !DILocation(line: 2, column: 13, scope: !8) 103!19 = !DILocation(line: 3, column: 3, scope: !8) 104!20 = !DILocation(line: 3, column: 7, scope: !8) 105!21 = !DILocation(line: 3, column: 16, scope: !8) 106!22 = !{!23, !23, i64 0} 107!23 = !{!"int", !24, i64 0} 108!24 = !{!"omnipotent char", !25, i64 0} 109!25 = !{!"Simple C/C++ TBAA"} 110!26 = !DILocation(line: 4, column: 3, scope: !8) 111!27 = !DILocation(line: 6, column: 1, scope: !8) 112!28 = !DILocation(line: 5, column: 3, scope: !8) 113