62 lines
2.5 KiB
LLVM
62 lines
2.5 KiB
LLVM
;; This test checks whether DWARF operator DW_OP_push_object_address
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;; is accepted and processed.
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; REQUIRES: x86_64-linux
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s
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;; Test whether DW_OP_push_object_address is accepted.
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; CHECK-LABEL: DW_TAG_variable
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; CHECK: DW_AT_location
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; CHECK-SAME: DW_OP_push_object_address
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;; Below is the original test case this IR is generated from
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;;---------------------------
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;;int main() {
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;;int var;
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;;return var;
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;;}
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;;---------------------------
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;; step 1: generate IR using -g -O0 -S -emit-llvm
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;; step 2: insert DW_OP_push_object_address in dbg.declare instruction
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;; This is meaningless test case focused to test DW_OP_push_object_address.
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; ModuleID = 'dwarfdump-pushobjectaddress.c'
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source_filename = "dwarfdump-pushobjectaddress.c"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: noinline nounwind optnone uwtable
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define dso_local i32 @main() !dbg !7 {
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entry:
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%retval = alloca i32, align 4
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%var = alloca i32, align 4
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store i32 0, i32* %retval, align 4
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call void @llvm.dbg.declare(metadata i32* %var, metadata !11, metadata !DIExpression(DW_OP_push_object_address)), !dbg !12
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%0 = load i32, i32* %var, align 4, !dbg !13
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ret i32 %0, !dbg !14
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!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)
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!1 = !DIFile(filename: "dwarfdump-pushobjectaddress.c", directory: "/dir")
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!2 = !{}
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!3 = !{i32 7, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 11.0.0"}
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!7 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DILocalVariable(name: "var", scope: !7, file: !1, line: 2, type: !10)
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!12 = !DILocation(line: 2, column: 5, scope: !7)
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!13 = !DILocation(line: 3, column: 8, scope: !7)
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!14 = !DILocation(line: 3, column: 1, scope: !7)
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