| ; RUN: llc %s -filetype=obj -O0 -mtriple=i386-unknown-linux-gnu -dwarf-version=4 -o %t |
| ; RUN: llvm-dwarfdump %t | FileCheck %s |
| |
| ; From the code: |
| |
| ; debug-loc-offset1.cc |
| ; int bar (int b) { |
| ; return b+4; |
| ; } |
| |
| ; debug-loc-offset2.cc |
| ; struct A { |
| ; int var; |
| ; virtual char foo(); |
| ; }; |
| |
| ; void baz(struct A a) { |
| ; int z = 2; |
| ; if (a.var > 2) |
| ; z++; |
| ; if (a.foo() == 'a') |
| ; z++; |
| ; } |
| |
| ; Compiled separately for i386-pc-linux-gnu and linked together. |
| ; This ensures that we have multiple compile units so that we can verify that |
| ; debug_loc entries are relative to the low_pc of the CU. The loc entry for |
| ; the byval argument in foo.cpp is in the second CU and so should have |
| ; an offset relative to that CU rather than from the beginning of the text |
| ; section. |
| |
| ; Checking that we have two compile units with two sets of high/lo_pc. |
| ; CHECK: .debug_info contents |
| ; CHECK: DW_TAG_compile_unit |
| ; CHECK: DW_AT_low_pc |
| ; CHECK: DW_AT_high_pc |
| |
| ; CHECK: DW_TAG_compile_unit |
| ; CHECK: DW_AT_low_pc |
| ; CHECK: DW_AT_high_pc |
| |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_MIPS_linkage_name [DW_FORM_strp]{{.*}}"_Z3baz1A" |
| ; CHECK-NOT: {{DW_TAG|NULL}} |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_location [DW_FORM_sec_offset] (0x00000000) |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name [DW_FORM_strp]{{.*}}"a" |
| |
| ; CHECK: DW_TAG_variable |
| ; CHECK: DW_AT_location [DW_FORM_exprloc] |
| ; CHECK-NOT: DW_AT_location |
| |
| ; CHECK: .debug_loc contents: |
| ; CHECK: 0x00000000: Beginning address offset: 0x0000000000000000 |
| ; CHECK: Ending address offset: 0x000000000000001a |
| |
| %struct.A = type { i32 (...)**, i32 } |
| |
| ; Function Attrs: nounwind |
| define i32 @_Z3bari(i32 %b) #0 { |
| entry: |
| %b.addr = alloca i32, align 4 |
| store i32 %b, i32* %b.addr, align 4 |
| call void @llvm.dbg.declare(metadata !{i32* %b.addr}, metadata !21), !dbg !22 |
| %0 = load i32* %b.addr, align 4, !dbg !23 |
| %add = add nsw i32 %0, 4, !dbg !23 |
| ret i32 %add, !dbg !23 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata) #1 |
| |
| define void @_Z3baz1A(%struct.A* %a) #2 { |
| entry: |
| %z = alloca i32, align 4 |
| call void @llvm.dbg.declare(metadata !{%struct.A* %a}, metadata !24), !dbg !25 |
| call void @llvm.dbg.declare(metadata !{i32* %z}, metadata !26), !dbg !27 |
| store i32 2, i32* %z, align 4, !dbg !27 |
| %var = getelementptr inbounds %struct.A* %a, i32 0, i32 1, !dbg !28 |
| %0 = load i32* %var, align 4, !dbg !28 |
| %cmp = icmp sgt i32 %0, 2, !dbg !28 |
| br i1 %cmp, label %if.then, label %if.end, !dbg !28 |
| |
| if.then: ; preds = %entry |
| %1 = load i32* %z, align 4, !dbg !30 |
| %inc = add nsw i32 %1, 1, !dbg !30 |
| store i32 %inc, i32* %z, align 4, !dbg !30 |
| br label %if.end, !dbg !30 |
| |
| if.end: ; preds = %if.then, %entry |
| %call = call signext i8 @_ZN1A3fooEv(%struct.A* %a), !dbg !31 |
| %conv = sext i8 %call to i32, !dbg !31 |
| %cmp1 = icmp eq i32 %conv, 97, !dbg !31 |
| br i1 %cmp1, label %if.then2, label %if.end4, !dbg !31 |
| |
| if.then2: ; preds = %if.end |
| %2 = load i32* %z, align 4, !dbg !33 |
| %inc3 = add nsw i32 %2, 1, !dbg !33 |
| store i32 %inc3, i32* %z, align 4, !dbg !33 |
| br label %if.end4, !dbg !33 |
| |
| if.end4: ; preds = %if.then2, %if.end |
| ret void, !dbg !34 |
| } |
| |
| declare signext i8 @_ZN1A3fooEv(%struct.A*) #2 |
| |
| attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind readnone } |
| attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| |
| !llvm.dbg.cu = !{!0, !9} |
| !llvm.module.flags = !{!18, !19} |
| !llvm.ident = !{!20, !20} |
| |
| !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 (210479)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/llvm_cmake_gcc/debug-loc-offset1.cc] [DW_LANG_C_plus_plus] |
| !1 = metadata !{metadata !"debug-loc-offset1.cc", metadata !"/llvm_cmake_gcc"} |
| !2 = metadata !{} |
| !3 = metadata !{metadata !4} |
| !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"bar", metadata !"bar", metadata !"_Z3bari", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @_Z3bari, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [bar] |
| !5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/llvm_cmake_gcc/debug-loc-offset1.cc] |
| !6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] |
| !7 = metadata !{metadata !8, metadata !8} |
| !8 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed] |
| !9 = metadata !{i32 786449, metadata !10, i32 4, metadata !"clang version 3.5.0 (210479)", i1 false, metadata !"", i32 0, metadata !2, metadata !11, metadata !13, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/llvm_cmake_gcc/debug-loc-offset2.cc] [DW_LANG_C_plus_plus] |
| !10 = metadata !{metadata !"debug-loc-offset2.cc", metadata !"/llvm_cmake_gcc"} |
| !11 = metadata !{metadata !12} |
| !12 = metadata !{i32 786451, metadata !10, null, metadata !"A", i32 1, i64 0, i64 0, i32 0, i32 4, null, null, i32 0, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_structure_type ] [A] [line 1, size 0, align 0, offset 0] [decl] [from ] |
| !13 = metadata !{metadata !14} |
| !14 = metadata !{i32 786478, metadata !10, metadata !15, metadata !"baz", metadata !"baz", metadata !"_Z3baz1A", i32 6, metadata !16, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%struct.A*)* @_Z3baz1A, null, null, metadata !2, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [baz] |
| !15 = metadata !{i32 786473, metadata !10} ; [ DW_TAG_file_type ] [/llvm_cmake_gcc/debug-loc-offset2.cc] |
| !16 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !17, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] |
| !17 = metadata !{null, metadata !12} |
| !18 = metadata !{i32 2, metadata !"Dwarf Version", i32 4} |
| !19 = metadata !{i32 2, metadata !"Debug Info Version", i32 1} |
| !20 = metadata !{metadata !"clang version 3.5.0 (210479)"} |
| !21 = metadata !{i32 786689, metadata !4, metadata !"b", metadata !5, i32 16777217, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [b] [line 1] |
| !22 = metadata !{i32 1, i32 0, metadata !4, null} |
| !23 = metadata !{i32 2, i32 0, metadata !4, null} |
| !24 = metadata !{i32 786689, metadata !14, metadata !"a", metadata !15, i32 16777222, metadata !"_ZTS1A", i32 8192, i32 0} ; [ DW_TAG_arg_variable ] [a] [line 6] |
| !25 = metadata !{i32 6, i32 0, metadata !14, null} |
| !26 = metadata !{i32 786688, metadata !14, metadata !"z", metadata !15, i32 7, metadata !8, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [z] [line 7] |
| !27 = metadata !{i32 7, i32 0, metadata !14, null} |
| !28 = metadata !{i32 8, i32 0, metadata !29, null} ; [ DW_TAG_imported_declaration ] |
| !29 = metadata !{i32 786443, metadata !10, metadata !14, i32 8, i32 0, i32 0, i32 0} ; [ DW_TAG_lexical_block ] [/llvm_cmake_gcc/debug-loc-offset2.cc] |
| !30 = metadata !{i32 9, i32 0, metadata !29, null} |
| !31 = metadata !{i32 10, i32 0, metadata !32, null} |
| !32 = metadata !{i32 786443, metadata !10, metadata !14, i32 10, i32 0, i32 0, i32 1} ; [ DW_TAG_lexical_block ] [/llvm_cmake_gcc/debug-loc-offset2.cc] |
| !33 = metadata !{i32 11, i32 0, metadata !32, null} |
| !34 = metadata !{i32 12, i32 0, metadata !14, null} |