1 ;; This test checks whether DWARF operator DW_OP_push_object_address
2 ;; is accepted and processed.
3 ; REQUIRES: x86_64-linux
5 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s
7 ;; Test whether DW_OP_push_object_address is accepted.
9 ; CHECK-LABEL: DW_TAG_variable
10 ; CHECK: DW_AT_location
11 ; CHECK-SAME: DW_OP_push_object_address
13 ;; Below is the original test case this IR is generated from
14 ;;---------------------------
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.
24 ; ModuleID = 'dwarfdump-pushobjectaddress.c'
25 source_filename = "dwarfdump-pushobjectaddress.c"
26 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
27 target triple = "x86_64-unknown-linux-gnu"
29 ; Function Attrs: noinline nounwind optnone uwtable
30 define dso_local i32 @main() !dbg !7 {
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
40 ; Function Attrs: nounwind readnone speculatable willreturn
41 declare void @llvm.dbg.declare(metadata, metadata, metadata)
44 !llvm.module.flags = !{!3, !4, !5}
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")
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)
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)