Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/test/DebugInfo/SystemZ/variable-loc.ll

@@ -0,0 +1,80 @@
+; RUN: llc -mtriple=s390x-linux-gnu -disable-fp-elim < %s | FileCheck %s
+; RUN: llc -mtriple=s390x-linux-gnu -disable-fp-elim -filetype=obj < %s \
+; RUN:     | llvm-dwarfdump -v -debug-info - | FileCheck --check-prefix=DEBUG %s
+;
+; This is a regression test making sure the location of variables is correct in
+; debugging information, even if they're addressed via the frame pointer.
+; Originally a copy of the AArch64 test, commandeered for SystemZ.
+;
+; First make sure main_arr is where we expect it: %r11 + 164
+;
+; CHECK: main:
+; CHECK: aghi    %r15, -568
+; CHECK: la      %r2, 164(%r11)
+; CHECK: brasl   %r14, populate_array@PLT
+
+; DEBUG: DW_TAG_variable
+; DEBUG-NOT: DW_TAG
+; DEBUG: DW_AT_location {{.*}}(DW_OP_fbreg +164)
+; DEBUG-NOT: DW_TAG
+; DEBUG: DW_AT_name {{.*}} "main_arr"
+
+
+@.str = private unnamed_addr constant [13 x i8] c"Total is %d\0A\00", align 2
+
+declare void @populate_array(i32*, i32) nounwind
+
+declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
+
+declare i32 @sum_array(i32*, i32) nounwind
+
+define i32 @main() nounwind !dbg !14 {
+entry:
+  %retval = alloca i32, align 4
+  %main_arr = alloca [100 x i32], align 4
+  %val = alloca i32, align 4
+  store volatile i32 0, i32* %retval
+  call void @llvm.dbg.declare(metadata [100 x i32]* %main_arr, metadata !17, metadata !DIExpression()), !dbg !22
+  call void @llvm.dbg.declare(metadata i32* %val, metadata !23, metadata !DIExpression()), !dbg !24
+  %arraydecay = getelementptr inbounds [100 x i32], [100 x i32]* %main_arr, i32 0, i32 0, !dbg !25
+  call void @populate_array(i32* %arraydecay, i32 100), !dbg !25
+  %arraydecay1 = getelementptr inbounds [100 x i32], [100 x i32]* %main_arr, i32 0, i32 0, !dbg !26
+  %call = call i32 @sum_array(i32* %arraydecay1, i32 100), !dbg !26
+  store i32 %call, i32* %val, align 4, !dbg !26
+  %0 = load i32, i32* %val, align 4, !dbg !27
+  %call2 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i32 0, i32 0), i32 %0), !dbg !27
+  ret i32 0, !dbg !28
+}
+
+declare i32 @printf(i8*, ...)
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!30}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.2 ", isOptimized: false, emissionKind: FullDebug, file: !29, enums: !1, retainedTypes: !1, globals: !1, imports:  !1)
+!1 = !{}
+!5 = distinct !DISubprogram(name: "populate_array", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 4, file: !29, scope: !6, type: !7, variables: !1)
+!6 = !DIFile(filename: "simple.c", directory: "/home/timnor01/a64-trunk/build")
+!7 = !DISubroutineType(types: !8)
+!8 = !{null, !9, !10}
+!9 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !10)
+!10 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!11 = distinct !DISubprogram(name: "sum_array", line: 9, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 9, file: !29, scope: !6, type: !12, variables: !1)
+!12 = !DISubroutineType(types: !13)
+!13 = !{!10, !9, !10}
+!14 = distinct !DISubprogram(name: "main", line: 18, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 18, file: !29, scope: !6, type: !15, variables: !1)
+!15 = !DISubroutineType(types: !16)
+!16 = !{!10}
+!17 = !DILocalVariable(name: "main_arr", line: 19, scope: !18, file: !6, type: !19)
+!18 = distinct !DILexicalBlock(line: 18, column: 16, file: !29, scope: !14)
+!19 = !DICompositeType(tag: DW_TAG_array_type, size: 3200, align: 32, baseType: !10, elements: !{!20})
+!20 = !DISubrange(count: 99)
+!22 = !DILocation(line: 19, column: 7, scope: !18)
+!23 = !DILocalVariable(name: "val", line: 20, scope: !18, file: !6, type: !10)
+!24 = !DILocation(line: 20, column: 7, scope: !18)
+!25 = !DILocation(line: 22, column: 3, scope: !18)
+!26 = !DILocation(line: 23, column: 9, scope: !18)
+!27 = !DILocation(line: 24, column: 3, scope: !18)
+!28 = !DILocation(line: 26, column: 3, scope: !18)
+!29 = !DIFile(filename: "simple.c", directory: "/home/timnor01/a64-trunk/build")
+!30 = !{i32 1, !"Debug Info Version", i32 3}