llvm/test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll - toolchain/llvm-project - Gitiles

 ; RUN: llc -march=x86-64 -mtriple=x86_64-linux < %s | FileCheck %s
 ; RUN: opt -strip-debug < %s | llc -march=x86-64 -mtriple=x86_64-linux | FileCheck %s
 ; http://llvm.org/PR19051. Minor code-motion difference with -g.
 ; Presence of debug info shouldn't affect the codegen. Make sure that
 ; we generated the same code sequence with and without debug info.
 ;
 ; CHECK:      callq   _Z3fooPcjPKc
 ; CHECK:      callq   _Z3fooPcjPKc
 ; CHECK:      leaq    (%rsp), %rdi
 ; CHECK:      movl    $4, %esi
 ; CHECK:      testl   {{%[a-z]+}}, {{%[a-z]+}}
 ; CHECK:      je     .LBB0_4

 ; Regenerate test with this command:
 ;   clang -emit-llvm -S -O2 -g
 ; from this source:
 ;
 ; extern void foo(char *dst,unsigned siz,const char *src);
 ; extern const char * i2str(int);
 ;
 ; struct AAA3 {
 ;  AAA3(const char *value) { foo(text,sizeof(text),value);}
 ;  void operator=(const char *value) { foo(text,sizeof(text),value);}
 ;  operator const char*() const { return text;}
 ;  char text[4];
 ; };
 ;
 ; void bar (int param1,int param2)  {
 ;   const char * temp(0);
 ;
 ;   if (param2) {
 ;     temp = i2str(param2);
 ;   }
 ;   AAA3 var1("");
 ;   AAA3 var2("");
 ;
 ;   if (param1)
 ;     var2 = "+";
 ;   else
 ;     var2 = "-";
 ;   var1 = "";
 ; }

 %struct.AAA3 = type { [4 x i8] }

 @.str = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
 @.str1 = private unnamed_addr constant [2 x i8] c"+\00", align 1
 @.str2 = private unnamed_addr constant [2 x i8] c"-\00", align 1

 ; Function Attrs: uwtable
 define void @_Z3barii(i32 %param1, i32 %param2) #0 {
 entry:
   %var1 = alloca %struct.AAA3, align 1
   %var2 = alloca %struct.AAA3, align 1
   tail call void @llvm.dbg.value(metadata !{i32 %param1}, i64 0, metadata !30, metadata !{metadata !"0x102"}), !dbg !47
   tail call void @llvm.dbg.value(metadata !{i32 %param2}, i64 0, metadata !31, metadata !{metadata !"0x102"}), !dbg !47
   tail call void @llvm.dbg.value(metadata !48, i64 0, metadata !32, metadata !{metadata !"0x102"}), !dbg !49
   %tobool = icmp eq i32 %param2, 0, !dbg !50
   br i1 %tobool, label %if.end, label %if.then, !dbg !50

 if.then:                                          ; preds = %entry
   %call = tail call i8* @_Z5i2stri(i32 %param2), !dbg !52
   tail call void @llvm.dbg.value(metadata !{i8* %call}, i64 0, metadata !32, metadata !{metadata !"0x102"}), !dbg !49
   br label %if.end, !dbg !54

 if.end:                                           ; preds = %entry, %if.then
   tail call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !33, metadata !{metadata !"0x102"}), !dbg !55
   tail call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !56, metadata !{metadata !"0x102"}), !dbg !57
   tail call void @llvm.dbg.value(metadata !58, i64 0, metadata !59, metadata !{metadata !"0x102"}), !dbg !60
   %arraydecay.i = getelementptr inbounds %struct.AAA3* %var1, i64 0, i32 0, i64 0, !dbg !61
   call void @_Z3fooPcjPKc(i8* %arraydecay.i, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)), !dbg !61
   call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !34, metadata !{metadata !"0x102"}), !dbg !63
   call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !64, metadata !{metadata !"0x102"}), !dbg !65
   call void @llvm.dbg.value(metadata !58, i64 0, metadata !66, metadata !{metadata !"0x102"}), !dbg !67
   %arraydecay.i5 = getelementptr inbounds %struct.AAA3* %var2, i64 0, i32 0, i64 0, !dbg !68
   call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)), !dbg !68
   %tobool1 = icmp eq i32 %param1, 0, !dbg !69
   call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !34, metadata !{metadata !"0x102"}), !dbg !63
   br i1 %tobool1, label %if.else, label %if.then2, !dbg !69

 if.then2:                                         ; preds = %if.end
   call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !71, metadata !{metadata !"0x102"}), !dbg !73
   call void @llvm.dbg.value(metadata !74, i64 0, metadata !75, metadata !{metadata !"0x102"}), !dbg !76
   call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([2 x i8]* @.str1, i64 0, i64 0)), !dbg !76
   br label %if.end3, !dbg !72

 if.else:                                          ; preds = %if.end
   call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !77, metadata !{metadata !"0x102"}), !dbg !79
   call void @llvm.dbg.value(metadata !80, i64 0, metadata !81, metadata !{metadata !"0x102"}), !dbg !82
   call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([2 x i8]* @.str2, i64 0, i64 0)), !dbg !82
   br label %if.end3

 if.end3:                                          ; preds = %if.else, %if.then2
   call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !33, metadata !{metadata !"0x102"}), !dbg !55
   call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !83, metadata !{metadata !"0x102"}), !dbg !85
   call void @llvm.dbg.value(metadata !58, i64 0, metadata !86, metadata !{metadata !"0x102"}), !dbg !87
   call void @_Z3fooPcjPKc(i8* %arraydecay.i, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)), !dbg !87
   ret void, !dbg !88
 }

 declare i8* @_Z5i2stri(i32) #1

 declare void @_Z3fooPcjPKc(i8*, i32, i8*) #1

 ; Function Attrs: nounwind readnone
 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2

 attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
 attributes #2 = { nounwind readnone }

 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!44, !45}
 !llvm.ident = !{!46}

 !0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 \001\00\000\00\001", metadata !1, metadata !2, metadata !3, metadata !23, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"dbg-changes-codegen-branch-folding.cpp", metadata !"/tmp/dbginfo"}
 !2 = metadata !{}
 !3 = metadata !{metadata !4}
 !4 = metadata !{metadata !"0x13\00AAA3\004\0032\008\000\000\000", metadata !1, null, null, metadata !5, null, null, metadata !"_ZTS4AAA3"} ; [ DW_TAG_structure_type ] [AAA3] [line 4, size 32, align 8, offset 0] [def] [from ]
 !5 = metadata !{metadata !6, metadata !11, metadata !17, metadata !18}
 !6 = metadata !{metadata !"0xd\00text\008\0032\008\000\000", metadata !1, metadata !"_ZTS4AAA3", metadata !7} ; [ DW_TAG_member ] [text] [line 8, size 32, align 8, offset 0] [from ]
 !7 = metadata !{metadata !"0x1\00\000\0032\008\000\000", null, null, metadata !8, metadata !9, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 32, align 8, offset 0] [from char]
 !8 = metadata !{metadata !"0x24\00char\000\008\008\000\000\006", null, null} ; [ DW_TAG_base_type ] [char] [line 0, size 8, align 8, offset 0, enc DW_ATE_signed_char]
 !9 = metadata !{metadata !10}
 !10 = metadata !{metadata !"0x21\000\004"}        ; [ DW_TAG_subrange_type ] [0, 3]
 !11 = metadata !{metadata !"0x2e\00AAA3\00AAA3\00\005\000\000\000\006\00256\001\005", metadata !1, metadata !"_ZTS4AAA3", metadata !12, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 5] [AAA3]
 !12 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !13, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !13 = metadata !{null, metadata !14, metadata !15}
 !14 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS4AAA3"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS4AAA3]
 !15 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !16} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
 !16 = metadata !{metadata !"0x26\00\000\000\000\000\000", null, null, metadata !8} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from char]
 !17 = metadata !{metadata !"0x2e\00operator=\00operator=\00_ZN4AAA3aSEPKc\006\000\000\000\006\00256\001\006", metadata !1, metadata !"_ZTS4AAA3", metadata !12, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 6] [operator=]
 !18 = metadata !{metadata !"0x2e\00operator const char *\00operator const char *\00_ZNK4AAA3cvPKcEv\007\000\000\000\006\00256\001\007", metadata !1, metadata !"_ZTS4AAA3", metadata !19, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 7] [operator const char *]
 !19 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !20, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !20 = metadata !{metadata !15, metadata !21}
 !21 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !22} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from ]
 !22 = metadata !{metadata !"0x26\00\000\000\000\000\000", null, null, metadata !"_ZTS4AAA3"} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from _ZTS4AAA3]
 !23 = metadata !{metadata !24, metadata !35, metadata !40}
 !24 = metadata !{metadata !"0x2e\00bar\00bar\00_Z3barii\0011\000\001\000\006\00256\001\0011", metadata !1, metadata !25, metadata !26, null, void (i32, i32)* @_Z3barii, null, null, metadata !29} ; [ DW_TAG_subprogram ] [line 11] [def] [bar]
 !25 = metadata !{metadata !"0x29", metadata !1}         ; [ DW_TAG_file_type ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
 !26 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !27, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !27 = metadata !{null, metadata !28, metadata !28}
 !28 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
 !29 = metadata !{metadata !30, metadata !31, metadata !32, metadata !33, metadata !34}
 !30 = metadata !{metadata !"0x101\00param1\0016777227\000", metadata !24, metadata !25, metadata !28} ; [ DW_TAG_arg_variable ] [param1] [line 11]
 !31 = metadata !{metadata !"0x101\00param2\0033554443\000", metadata !24, metadata !25, metadata !28} ; [ DW_TAG_arg_variable ] [param2] [line 11]
 !32 = metadata !{metadata !"0x100\00temp\0012\000", metadata !24, metadata !25, metadata !15} ; [ DW_TAG_auto_variable ] [temp] [line 12]
 !33 = metadata !{metadata !"0x100\00var1\0017\000", metadata !24, metadata !25, metadata !"_ZTS4AAA3"} ; [ DW_TAG_auto_variable ] [var1] [line 17]
 !34 = metadata !{metadata !"0x100\00var2\0018\000", metadata !24, metadata !25, metadata !"_ZTS4AAA3"} ; [ DW_TAG_auto_variable ] [var2] [line 18]
 !35 = metadata !{metadata !"0x2e\00operator=\00operator=\00_ZN4AAA3aSEPKc\006\000\001\000\006\00256\001\006", metadata !1, metadata !"_ZTS4AAA3", metadata !12, null, null, null, metadata !17, metadata !36} ; [ DW_TAG_subprogram ] [line 6] [def] [operator=]
 !36 = metadata !{metadata !37, metadata !39}
 !37 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !35, null, metadata !38} ; [ DW_TAG_arg_variable ] [this] [line 0]
 !38 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS4AAA3"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS4AAA3]
 !39 = metadata !{metadata !"0x101\00value\0033554438\000", metadata !35, metadata !25, metadata !15} ; [ DW_TAG_arg_variable ] [value] [line 6]
 !40 = metadata !{metadata !"0x2e\00AAA3\00AAA3\00_ZN4AAA3C2EPKc\005\000\001\000\006\00256\001\005", metadata !1, metadata !"_ZTS4AAA3", metadata !12, null, null, null, metadata !11, metadata !41} ; [ DW_TAG_subprogram ] [line 5] [def] [AAA3]
 !41 = metadata !{metadata !42, metadata !43}
 !42 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !40, null, metadata !38} ; [ DW_TAG_arg_variable ] [this] [line 0]
 !43 = metadata !{metadata !"0x101\00value\0033554437\000", metadata !40, metadata !25, metadata !15} ; [ DW_TAG_arg_variable ] [value] [line 5]
 !44 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
 !45 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
 !46 = metadata !{metadata !"clang version 3.5.0 "}
 !47 = metadata !{i32 11, i32 0, metadata !24, null}
 !48 = metadata !{i8* null}
 !49 = metadata !{i32 12, i32 0, metadata !24, null}
 !50 = metadata !{i32 14, i32 0, metadata !51, null}
 !51 = metadata !{metadata !"0xb\0014\000\000", metadata !1, metadata !24} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
 !52 = metadata !{i32 15, i32 0, metadata !53, null}
 !53 = metadata !{metadata !"0xb\0014\000\000", metadata !1, metadata !51} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
 !54 = metadata !{i32 16, i32 0, metadata !53, null}
 !55 = metadata !{i32 17, i32 0, metadata !24, null}
 !56 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !40, null, metadata !38, metadata !55} ; [ DW_TAG_arg_variable ] [this] [line 0]
 !57 = metadata !{i32 0, i32 0, metadata !40, metadata !55}
 !58 = metadata !{i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)}
 !59 = metadata !{metadata !"0x101\00value\0033554437\000", metadata !40, metadata !25, metadata !15, metadata !55} ; [ DW_TAG_arg_variable ] [value] [line 5]
 !60 = metadata !{i32 5, i32 0, metadata !40, metadata !55}
 !61 = metadata !{i32 5, i32 0, metadata !62, metadata !55}
 !62 = metadata !{metadata !"0xb\005\000\000", metadata !1, metadata !40} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
 !63 = metadata !{i32 18, i32 0, metadata !24, null}
 !64 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !40, null, metadata !38, metadata !63} ; [ DW_TAG_arg_variable ] [this] [line 0]
 !65 = metadata !{i32 0, i32 0, metadata !40, metadata !63}
 !66 = metadata !{metadata !"0x101\00value\0033554437\000", metadata !40, metadata !25, metadata !15, metadata !63} ; [ DW_TAG_arg_variable ] [value] [line 5]
 !67 = metadata !{i32 5, i32 0, metadata !40, metadata !63}
 !68 = metadata !{i32 5, i32 0, metadata !62, metadata !63}
 !69 = metadata !{i32 20, i32 0, metadata !70, null}
 !70 = metadata !{metadata !"0xb\0020\000\000", metadata !1, metadata !24} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
 !71 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !35, null, metadata !38, metadata !72} ; [ DW_TAG_arg_variable ] [this] [line 0]
 !72 = metadata !{i32 21, i32 0, metadata !70, null}
 !73 = metadata !{i32 0, i32 0, metadata !35, metadata !72}
 !74 = metadata !{i8* getelementptr inbounds ([2 x i8]* @.str1, i64 0, i64 0)}
 !75 = metadata !{metadata !"0x101\00value\0033554438\000", metadata !35, metadata !25, metadata !15, metadata !72} ; [ DW_TAG_arg_variable ] [value] [line 6]
 !76 = metadata !{i32 6, i32 0, metadata !35, metadata !72}
 !77 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !35, null, metadata !38, metadata !78} ; [ DW_TAG_arg_variable ] [this] [line 0]
 !78 = metadata !{i32 23, i32 0, metadata !70, null}
 !79 = metadata !{i32 0, i32 0, metadata !35, metadata !78}
 !80 = metadata !{i8* getelementptr inbounds ([2 x i8]* @.str2, i64 0, i64 0)}
 !81 = metadata !{metadata !"0x101\00value\0033554438\000", metadata !35, metadata !25, metadata !15, metadata !78} ; [ DW_TAG_arg_variable ] [value] [line 6]
 !82 = metadata !{i32 6, i32 0, metadata !35, metadata !78}
 !83 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !35, null, metadata !38, metadata !84} ; [ DW_TAG_arg_variable ] [this] [line 0]
 !84 = metadata !{i32 24, i32 0, metadata !24, null}
 !85 = metadata !{i32 0, i32 0, metadata !35, metadata !84}
 !86 = metadata !{metadata !"0x101\00value\0033554438\000", metadata !35, metadata !25, metadata !15, metadata !84} ; [ DW_TAG_arg_variable ] [value] [line 6]
 !87 = metadata !{i32 6, i32 0, metadata !35, metadata !84}
 !88 = metadata !{i32 25, i32 0, metadata !24, null}
	; RUN: llc -march=x86-64 -mtriple=x86_64-linux < %s \| FileCheck %s
	; RUN: opt -strip-debug < %s \| llc -march=x86-64 -mtriple=x86_64-linux \| FileCheck %s
	; http://llvm.org/PR19051. Minor code-motion difference with -g.
	; Presence of debug info shouldn't affect the codegen. Make sure that
	; we generated the same code sequence with and without debug info.
	;
	; CHECK: callq _Z3fooPcjPKc
	; CHECK: callq _Z3fooPcjPKc
	; CHECK: leaq (%rsp), %rdi
	; CHECK: movl $4, %esi
	; CHECK: testl {{%[a-z]+}}, {{%[a-z]+}}
	; CHECK: je .LBB0_4

	; Regenerate test with this command:
	; clang -emit-llvm -S -O2 -g
	; from this source:
	;
	; extern void foo(char dst,unsigned siz,const char src);
	; extern const char * i2str(int);
	;
	; struct AAA3 {
	; AAA3(const char *value) { foo(text,sizeof(text),value);}
	; void operator=(const char *value) { foo(text,sizeof(text),value);}
	; operator const char*() const { return text;}
	; char text[4];
	; };
	;
	; void bar (int param1,int param2) {
	; const char * temp(0);
	;
	; if (param2) {
	; temp = i2str(param2);
	; }
	; AAA3 var1("");
	; AAA3 var2("");
	;
	; if (param1)
	; var2 = "+";
	; else
	; var2 = "-";
	; var1 = "";
	; }

	%struct.AAA3 = type { [4 x i8] }

	@.str = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
	@.str1 = private unnamed_addr constant [2 x i8] c"+\00", align 1
	@.str2 = private unnamed_addr constant [2 x i8] c"-\00", align 1

	; Function Attrs: uwtable
	define void @_Z3barii(i32 %param1, i32 %param2) #0 {
	entry:
	%var1 = alloca %struct.AAA3, align 1
	%var2 = alloca %struct.AAA3, align 1
	tail call void @llvm.dbg.value(metadata !{i32 %param1}, i64 0, metadata !30, metadata !{metadata !"0x102"}), !dbg !47
	tail call void @llvm.dbg.value(metadata !{i32 %param2}, i64 0, metadata !31, metadata !{metadata !"0x102"}), !dbg !47
	tail call void @llvm.dbg.value(metadata !48, i64 0, metadata !32, metadata !{metadata !"0x102"}), !dbg !49
	%tobool = icmp eq i32 %param2, 0, !dbg !50
	br i1 %tobool, label %if.end, label %if.then, !dbg !50

	if.then: ; preds = %entry
	%call = tail call i8* @_Z5i2stri(i32 %param2), !dbg !52
	tail call void @llvm.dbg.value(metadata !{i8* %call}, i64 0, metadata !32, metadata !{metadata !"0x102"}), !dbg !49
	br label %if.end, !dbg !54

	if.end: ; preds = %entry, %if.then
	tail call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !33, metadata !{metadata !"0x102"}), !dbg !55
	tail call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !56, metadata !{metadata !"0x102"}), !dbg !57
	tail call void @llvm.dbg.value(metadata !58, i64 0, metadata !59, metadata !{metadata !"0x102"}), !dbg !60
	%arraydecay.i = getelementptr inbounds %struct.AAA3* %var1, i64 0, i32 0, i64 0, !dbg !61
	call void @_Z3fooPcjPKc(i8* %arraydecay.i, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)), !dbg !61
	call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !34, metadata !{metadata !"0x102"}), !dbg !63
	call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !64, metadata !{metadata !"0x102"}), !dbg !65
	call void @llvm.dbg.value(metadata !58, i64 0, metadata !66, metadata !{metadata !"0x102"}), !dbg !67
	%arraydecay.i5 = getelementptr inbounds %struct.AAA3* %var2, i64 0, i32 0, i64 0, !dbg !68
	call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)), !dbg !68
	%tobool1 = icmp eq i32 %param1, 0, !dbg !69
	call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !34, metadata !{metadata !"0x102"}), !dbg !63
	br i1 %tobool1, label %if.else, label %if.then2, !dbg !69

	if.then2: ; preds = %if.end
	call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !71, metadata !{metadata !"0x102"}), !dbg !73
	call void @llvm.dbg.value(metadata !74, i64 0, metadata !75, metadata !{metadata !"0x102"}), !dbg !76
	call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([2 x i8]* @.str1, i64 0, i64 0)), !dbg !76
	br label %if.end3, !dbg !72

	if.else: ; preds = %if.end
	call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !77, metadata !{metadata !"0x102"}), !dbg !79
	call void @llvm.dbg.value(metadata !80, i64 0, metadata !81, metadata !{metadata !"0x102"}), !dbg !82
	call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([2 x i8]* @.str2, i64 0, i64 0)), !dbg !82
	br label %if.end3

	if.end3: ; preds = %if.else, %if.then2
	call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !33, metadata !{metadata !"0x102"}), !dbg !55
	call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !83, metadata !{metadata !"0x102"}), !dbg !85
	call void @llvm.dbg.value(metadata !58, i64 0, metadata !86, metadata !{metadata !"0x102"}), !dbg !87
	call void @_Z3fooPcjPKc(i8* %arraydecay.i, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)), !dbg !87
	ret void, !dbg !88
	}

	declare i8* @_Z5i2stri(i32) #1

	declare void @_Z3fooPcjPKc(i8, i32, i8) #1

	; Function Attrs: nounwind readnone
	declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2

	attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
	attributes #2 = { nounwind readnone }

	!llvm.dbg.cu = !{!0}
	!llvm.module.flags = !{!44, !45}
	!llvm.ident = !{!46}

	!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 \001\00\000\00\001", metadata !1, metadata !2, metadata !3, metadata !23, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp] [DW_LANG_C_plus_plus]
	!1 = metadata !{metadata !"dbg-changes-codegen-branch-folding.cpp", metadata !"/tmp/dbginfo"}
	!2 = metadata !{}
	!3 = metadata !{metadata !4}
	!4 = metadata !{metadata !"0x13\00AAA3\004\0032\008\000\000\000", metadata !1, null, null, metadata !5, null, null, metadata !"_ZTS4AAA3"} ; [ DW_TAG_structure_type ] [AAA3] [line 4, size 32, align 8, offset 0] [def] [from ]
	!5 = metadata !{metadata !6, metadata !11, metadata !17, metadata !18}
	!6 = metadata !{metadata !"0xd\00text\008\0032\008\000\000", metadata !1, metadata !"_ZTS4AAA3", metadata !7} ; [ DW_TAG_member ] [text] [line 8, size 32, align 8, offset 0] [from ]
	!7 = metadata !{metadata !"0x1\00\000\0032\008\000\000", null, null, metadata !8, metadata !9, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 32, align 8, offset 0] [from char]
	!8 = metadata !{metadata !"0x24\00char\000\008\008\000\000\006", null, null} ; [ DW_TAG_base_type ] [char] [line 0, size 8, align 8, offset 0, enc DW_ATE_signed_char]
	!9 = metadata !{metadata !10}
	!10 = metadata !{metadata !"0x21\000\004"} ; [ DW_TAG_subrange_type ] [0, 3]
	!11 = metadata !{metadata !"0x2e\00AAA3\00AAA3\00\005\000\000\000\006\00256\001\005", metadata !1, metadata !"_ZTS4AAA3", metadata !12, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 5] [AAA3]
	!12 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !13, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
	!13 = metadata !{null, metadata !14, metadata !15}
	!14 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS4AAA3"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS4AAA3]
	!15 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !16} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
	!16 = metadata !{metadata !"0x26\00\000\000\000\000\000", null, null, metadata !8} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from char]
	!17 = metadata !{metadata !"0x2e\00operator=\00operator=\00_ZN4AAA3aSEPKc\006\000\000\000\006\00256\001\006", metadata !1, metadata !"_ZTS4AAA3", metadata !12, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 6] [operator=]
	!18 = metadata !{metadata !"0x2e\00operator const char \00operator const char \00_ZNK4AAA3cvPKcEv\007\000\000\000\006\00256\001\007", metadata !1, metadata !"_ZTS4AAA3", metadata !19, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 7] [operator const char *]
	!19 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !20, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
	!20 = metadata !{metadata !15, metadata !21}
	!21 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !22} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from ]
	!22 = metadata !{metadata !"0x26\00\000\000\000\000\000", null, null, metadata !"_ZTS4AAA3"} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from _ZTS4AAA3]
	!23 = metadata !{metadata !24, metadata !35, metadata !40}
	!24 = metadata !{metadata !"0x2e\00bar\00bar\00_Z3barii\0011\000\001\000\006\00256\001\0011", metadata !1, metadata !25, metadata !26, null, void (i32, i32)* @_Z3barii, null, null, metadata !29} ; [ DW_TAG_subprogram ] [line 11] [def] [bar]
	!25 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
	!26 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !27, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
	!27 = metadata !{null, metadata !28, metadata !28}
	!28 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
	!29 = metadata !{metadata !30, metadata !31, metadata !32, metadata !33, metadata !34}
	!30 = metadata !{metadata !"0x101\00param1\0016777227\000", metadata !24, metadata !25, metadata !28} ; [ DW_TAG_arg_variable ] [param1] [line 11]
	!31 = metadata !{metadata !"0x101\00param2\0033554443\000", metadata !24, metadata !25, metadata !28} ; [ DW_TAG_arg_variable ] [param2] [line 11]
	!32 = metadata !{metadata !"0x100\00temp\0012\000", metadata !24, metadata !25, metadata !15} ; [ DW_TAG_auto_variable ] [temp] [line 12]
	!33 = metadata !{metadata !"0x100\00var1\0017\000", metadata !24, metadata !25, metadata !"_ZTS4AAA3"} ; [ DW_TAG_auto_variable ] [var1] [line 17]
	!34 = metadata !{metadata !"0x100\00var2\0018\000", metadata !24, metadata !25, metadata !"_ZTS4AAA3"} ; [ DW_TAG_auto_variable ] [var2] [line 18]
	!35 = metadata !{metadata !"0x2e\00operator=\00operator=\00_ZN4AAA3aSEPKc\006\000\001\000\006\00256\001\006", metadata !1, metadata !"_ZTS4AAA3", metadata !12, null, null, null, metadata !17, metadata !36} ; [ DW_TAG_subprogram ] [line 6] [def] [operator=]
	!36 = metadata !{metadata !37, metadata !39}
	!37 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !35, null, metadata !38} ; [ DW_TAG_arg_variable ] [this] [line 0]
	!38 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS4AAA3"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS4AAA3]
	!39 = metadata !{metadata !"0x101\00value\0033554438\000", metadata !35, metadata !25, metadata !15} ; [ DW_TAG_arg_variable ] [value] [line 6]
	!40 = metadata !{metadata !"0x2e\00AAA3\00AAA3\00_ZN4AAA3C2EPKc\005\000\001\000\006\00256\001\005", metadata !1, metadata !"_ZTS4AAA3", metadata !12, null, null, null, metadata !11, metadata !41} ; [ DW_TAG_subprogram ] [line 5] [def] [AAA3]
	!41 = metadata !{metadata !42, metadata !43}
	!42 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !40, null, metadata !38} ; [ DW_TAG_arg_variable ] [this] [line 0]
	!43 = metadata !{metadata !"0x101\00value\0033554437\000", metadata !40, metadata !25, metadata !15} ; [ DW_TAG_arg_variable ] [value] [line 5]
	!44 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
	!45 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
	!46 = metadata !{metadata !"clang version 3.5.0 "}
	!47 = metadata !{i32 11, i32 0, metadata !24, null}
	!48 = metadata !{i8* null}
	!49 = metadata !{i32 12, i32 0, metadata !24, null}
	!50 = metadata !{i32 14, i32 0, metadata !51, null}
	!51 = metadata !{metadata !"0xb\0014\000\000", metadata !1, metadata !24} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
	!52 = metadata !{i32 15, i32 0, metadata !53, null}
	!53 = metadata !{metadata !"0xb\0014\000\000", metadata !1, metadata !51} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
	!54 = metadata !{i32 16, i32 0, metadata !53, null}
	!55 = metadata !{i32 17, i32 0, metadata !24, null}
	!56 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !40, null, metadata !38, metadata !55} ; [ DW_TAG_arg_variable ] [this] [line 0]
	!57 = metadata !{i32 0, i32 0, metadata !40, metadata !55}
	!58 = metadata !{i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)}
	!59 = metadata !{metadata !"0x101\00value\0033554437\000", metadata !40, metadata !25, metadata !15, metadata !55} ; [ DW_TAG_arg_variable ] [value] [line 5]
	!60 = metadata !{i32 5, i32 0, metadata !40, metadata !55}
	!61 = metadata !{i32 5, i32 0, metadata !62, metadata !55}
	!62 = metadata !{metadata !"0xb\005\000\000", metadata !1, metadata !40} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
	!63 = metadata !{i32 18, i32 0, metadata !24, null}
	!64 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !40, null, metadata !38, metadata !63} ; [ DW_TAG_arg_variable ] [this] [line 0]
	!65 = metadata !{i32 0, i32 0, metadata !40, metadata !63}
	!66 = metadata !{metadata !"0x101\00value\0033554437\000", metadata !40, metadata !25, metadata !15, metadata !63} ; [ DW_TAG_arg_variable ] [value] [line 5]
	!67 = metadata !{i32 5, i32 0, metadata !40, metadata !63}
	!68 = metadata !{i32 5, i32 0, metadata !62, metadata !63}
	!69 = metadata !{i32 20, i32 0, metadata !70, null}
	!70 = metadata !{metadata !"0xb\0020\000\000", metadata !1, metadata !24} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
	!71 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !35, null, metadata !38, metadata !72} ; [ DW_TAG_arg_variable ] [this] [line 0]
	!72 = metadata !{i32 21, i32 0, metadata !70, null}
	!73 = metadata !{i32 0, i32 0, metadata !35, metadata !72}
	!74 = metadata !{i8* getelementptr inbounds ([2 x i8]* @.str1, i64 0, i64 0)}
	!75 = metadata !{metadata !"0x101\00value\0033554438\000", metadata !35, metadata !25, metadata !15, metadata !72} ; [ DW_TAG_arg_variable ] [value] [line 6]
	!76 = metadata !{i32 6, i32 0, metadata !35, metadata !72}
	!77 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !35, null, metadata !38, metadata !78} ; [ DW_TAG_arg_variable ] [this] [line 0]
	!78 = metadata !{i32 23, i32 0, metadata !70, null}
	!79 = metadata !{i32 0, i32 0, metadata !35, metadata !78}
	!80 = metadata !{i8* getelementptr inbounds ([2 x i8]* @.str2, i64 0, i64 0)}
	!81 = metadata !{metadata !"0x101\00value\0033554438\000", metadata !35, metadata !25, metadata !15, metadata !78} ; [ DW_TAG_arg_variable ] [value] [line 6]
	!82 = metadata !{i32 6, i32 0, metadata !35, metadata !78}
	!83 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !35, null, metadata !38, metadata !84} ; [ DW_TAG_arg_variable ] [this] [line 0]
	!84 = metadata !{i32 24, i32 0, metadata !24, null}
	!85 = metadata !{i32 0, i32 0, metadata !35, metadata !84}
	!86 = metadata !{metadata !"0x101\00value\0033554438\000", metadata !35, metadata !25, metadata !15, metadata !84} ; [ DW_TAG_arg_variable ] [value] [line 6]
	!87 = metadata !{i32 6, i32 0, metadata !35, metadata !84}
	!88 = metadata !{i32 25, i32 0, metadata !24, null}