1;; This test checks whether DWARF operator DW_OP_push_object_address 2;; is accepted and processed. 3; REQUIRES: x86_64-linux 4 5; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s 6 7;; Test whether DW_OP_push_object_address is accepted. 8 9; CHECK-LABEL: DW_TAG_variable 10; CHECK: DW_AT_location 11; CHECK-SAME: DW_OP_push_object_address 12 13;; Below is the original test case this IR is generated from 14;;--------------------------- 15;;int main() { 16;;int var; 17;;return var; 18;;} 19;;--------------------------- 20;; step 1: generate IR using -g -O0 -S -emit-llvm 21;; step 2: insert DW_OP_push_object_address in dbg.declare instruction 22;; This is meaningless test case focused to test DW_OP_push_object_address. 23 24; ModuleID = 'dwarfdump-pushobjectaddress.c' 25source_filename = "dwarfdump-pushobjectaddress.c" 26target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 27target triple = "x86_64-unknown-linux-gnu" 28 29; Function Attrs: noinline nounwind optnone uwtable 30define dso_local i32 @main() !dbg !7 { 31entry: 32 %retval = alloca i32, align 4 33 %var = alloca i32, align 4 34 store i32 0, i32* %retval, align 4 35 call void @llvm.dbg.declare(metadata i32* %var, metadata !11, metadata !DIExpression(DW_OP_push_object_address)), !dbg !12 36 %0 = load i32, i32* %var, align 4, !dbg !13 37 ret i32 %0, !dbg !14 38} 39 40; Function Attrs: nounwind readnone speculatable willreturn 41declare void @llvm.dbg.declare(metadata, metadata, metadata) 42 43!llvm.dbg.cu = !{!0} 44!llvm.module.flags = !{!3, !4, !5} 45!llvm.ident = !{!6} 46 47!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) 48!1 = !DIFile(filename: "dwarfdump-pushobjectaddress.c", directory: "/dir") 49!2 = !{} 50!3 = !{i32 7, !"Dwarf Version", i32 4} 51!4 = !{i32 2, !"Debug Info Version", i32 3} 52!5 = !{i32 1, !"wchar_size", i32 4} 53!6 = !{!"clang version 11.0.0"} 54!7 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2) 55!8 = !DISubroutineType(types: !9) 56!9 = !{!10} 57!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 58!11 = !DILocalVariable(name: "var", scope: !7, file: !1, line: 2, type: !10) 59!12 = !DILocation(line: 2, column: 5, scope: !7) 60!13 = !DILocation(line: 3, column: 8, scope: !7) 61!14 = !DILocation(line: 3, column: 1, scope: !7) 62