| ; REQUIRES: object-emission |
| ; |
| ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -O0 -filetype=obj < %s > %t |
| ; RUN: llvm-dwarfdump %t | FileCheck %s |
| |
| ; Test case derived from compiling the following source with clang -g: |
| ; |
| ; namespace pr14763 { |
| ; struct foo { |
| ; foo(const foo&); |
| ; }; |
| ; |
| ; foo func(foo f) { |
| ; return f; // reference 'f' for now because otherwise we hit another bug |
| ; } |
| ; |
| ; void sink(void*); |
| ; |
| ; void func2(bool b, foo g) { |
| ; if (b) |
| ; sink(&g); // reference 'f' for now because otherwise we hit another bug |
| ; } |
| ; } |
| |
| ; CHECK: debug_info contents |
| ; 0x74 is DW_OP_breg4, showing that the parameter is accessed indirectly |
| ; (with a zero offset) from the register parameter |
| ; CHECK: DW_AT_location{{.*}}(<0x0{{.}}> 74 00 |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name{{.*}} = "f" |
| |
| ; CHECK: DW_AT_location{{.*}}([[G_LOC:0x[0-9]*]]) |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name{{.*}} = "g" |
| ; CHECK: debug_loc contents |
| ; CHECK-NEXT: [[G_LOC]]: Beginning |
| ; CHECK-NEXT: Ending |
| ; CHECK-NEXT: Location description: 74 00 |
| |
| %"struct.pr14763::foo" = type { i8 } |
| |
| ; Function Attrs: uwtable |
| define void @_ZN7pr147634funcENS_3fooE(%"struct.pr14763::foo"* noalias sret %agg.result, %"struct.pr14763::foo"* %f) #0 { |
| entry: |
| call void @llvm.dbg.declare(metadata %"struct.pr14763::foo"* %f, metadata !22, metadata !{!"0x102"}), !dbg !24 |
| call void @_ZN7pr147633fooC1ERKS0_(%"struct.pr14763::foo"* %agg.result, %"struct.pr14763::foo"* %f), !dbg !25 |
| ret void, !dbg !25 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| declare void @_ZN7pr147633fooC1ERKS0_(%"struct.pr14763::foo"*, %"struct.pr14763::foo"*) #2 |
| |
| ; Function Attrs: uwtable |
| define void @_ZN7pr147635func2EbNS_3fooE(i1 zeroext %b, %"struct.pr14763::foo"* %g) #0 { |
| entry: |
| %b.addr = alloca i8, align 1 |
| %frombool = zext i1 %b to i8 |
| store i8 %frombool, i8* %b.addr, align 1 |
| call void @llvm.dbg.declare(metadata i8* %b.addr, metadata !26, metadata !{!"0x102"}), !dbg !27 |
| call void @llvm.dbg.declare(metadata %"struct.pr14763::foo"* %g, metadata !28, metadata !{!"0x102"}), !dbg !27 |
| %0 = load i8* %b.addr, align 1, !dbg !29 |
| %tobool = trunc i8 %0 to i1, !dbg !29 |
| br i1 %tobool, label %if.then, label %if.end, !dbg !29 |
| |
| if.then: ; preds = %entry |
| %1 = bitcast %"struct.pr14763::foo"* %g to i8*, !dbg !31 |
| call void @_ZN7pr147634sinkEPv(i8* %1), !dbg !31 |
| br label %if.end, !dbg !31 |
| |
| if.end: ; preds = %if.then, %entry |
| ret void, !dbg !32 |
| } |
| |
| declare void @_ZN7pr147634sinkEPv(i8*) #2 |
| |
| attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "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"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!21, !33} |
| |
| !0 = !{!"0x11\004\00clang version 3.4 \000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/tmp/pass.cpp] [DW_LANG_C_plus_plus] |
| !1 = !{!"pass.cpp", !"/tmp"} |
| !2 = !{} |
| !3 = !{!4, !17} |
| !4 = !{!"0x2e\00func\00func\00_ZN7pr147634funcENS_3fooE\006\000\001\000\006\00256\000\006", !1, !5, !6, null, void (%"struct.pr14763::foo"*, %"struct.pr14763::foo"*)* @_ZN7pr147634funcENS_3fooE, null, null, !2} ; [ DW_TAG_subprogram ] [line 6] [def] [func] |
| !5 = !{!"0x39\00pr14763\001", !1, null} ; [ DW_TAG_namespace ] [pr14763] [line 1] |
| !6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] |
| !7 = !{!8, !8} |
| !8 = !{!"0x13\00foo\002\008\008\000\000\000", !1, !5, null, !9, null, null, null} ; [ DW_TAG_structure_type ] [foo] [line 2, size 8, align 8, offset 0] [def] [from ] |
| !9 = !{!10} |
| !10 = !{!"0x2e\00foo\00foo\00\003\000\000\000\006\00256\000\003", !1, !8, !11, null, null, null, i32 0, !16} ; [ DW_TAG_subprogram ] [line 3] [foo] |
| !11 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] |
| !12 = !{null, !13, !14} |
| !13 = !{!"0xf\00\000\0064\0064\000\001088", i32 0, null, !8} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from foo] |
| !14 = !{!"0x10\00\000\000\000\000\000", null, null, !15} ; [ DW_TAG_reference_type ] [line 0, size 0, align 0, offset 0] [from ] |
| !15 = !{!"0x26\00\000\000\000\000\000", null, null, !8} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from foo] |
| !16 = !{i32 786468} |
| !17 = !{!"0x2e\00func2\00func2\00_ZN7pr147635func2EbNS_3fooE\0012\000\001\000\006\00256\000\0012", !1, !5, !18, null, void (i1, %"struct.pr14763::foo"*)* @_ZN7pr147635func2EbNS_3fooE, null, null, !2} ; [ DW_TAG_subprogram ] [line 12] [def] [func2] |
| !18 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !19, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] |
| !19 = !{null, !20, !8} |
| !20 = !{!"0x24\00bool\000\008\008\000\000\002", null, null} ; [ DW_TAG_base_type ] [bool] [line 0, size 8, align 8, offset 0, enc DW_ATE_boolean] |
| !21 = !{i32 2, !"Dwarf Version", i32 3} |
| !22 = !{!"0x101\00f\0016777222\008192", !4, !23, !8} ; [ DW_TAG_arg_variable ] [f] [line 6] |
| !23 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/tmp/pass.cpp] |
| !24 = !MDLocation(line: 6, scope: !4) |
| !25 = !MDLocation(line: 7, scope: !4) |
| !26 = !{!"0x101\00b\0016777228\000", !17, !23, !20} ; [ DW_TAG_arg_variable ] [b] [line 12] |
| !27 = !MDLocation(line: 12, scope: !17) |
| !28 = !{!"0x101\00g\0033554444\008192", !17, !23, !8} ; [ DW_TAG_arg_variable ] [g] [line 12] |
| !29 = !MDLocation(line: 13, scope: !30) |
| !30 = !{!"0xb\0013\000\000", !1, !17} ; [ DW_TAG_lexical_block ] [/tmp/pass.cpp] |
| !31 = !MDLocation(line: 14, scope: !30) |
| !32 = !MDLocation(line: 15, scope: !17) |
| !33 = !{i32 1, !"Debug Info Version", i32 2} |