test/DebugInfo/MIR/X86/live-debug-values.mir - llvm-project/llvm - Git at Google

 # RUN: llc -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s

 # Test the extension of debug ranges from predecessors.
 # Generated from the source file LiveDebugValues.c:
 # #include <stdio.h>
 # int m;
 # extern int inc(int n);
 # extern int change(int n);
 # extern int modify(int n);
 # int main(int argc, char **argv) {
 #   int n;
 #   if (argc != 2)
 #     n = 2;
 #   else
 #     n = atoi(argv[1]);
 #   n = change(n);
 #   if (n > 10) {
 #     m = modify(n);
 #     m = m + n;  // var `m' doesn't has a dbg.value
 #   }
 #   else
 #     m = inc(n); // var `m' doesn't has a dbg.value
 #   printf("m(main): %d\n", m);
 #   return 0;
 # }
 # with clang -g -O3 -c -emit-llvm LiveDebugValues.c -S -o live-debug-values.ll
 # then llc -stop-after stackmap-liveness live-debug-values.ll -o /dev/null > live-debug-values.mir
 # This case will also produce multiple locations but only the debug range
 # extension is tested here. This test case is tested with DWARF information under
 # llvm/test/DebugInfo/live-debug-values.ll and present here for testing under
 # MIR->MIR serialization.

 # DBG_VALUE for variable "n" is extended into %bb.5 from its predecessors %bb.3
 # and %bb.4.
 # CHECK: ![[N_VAR:[0-9]+]] = !DILocalVariable(name: "n",{{.*}})
 #
 # CHECK:      bb.5.if.end.7:
 # CHECK:        DBG_VALUE $ebx, $noreg, ![[N_VAR]], !DIExpression()


 --- |
   ; ModuleID = 'live-debug-values.ll'
   target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
   target triple = "x86_64-unknown-linux-gnu"

   @m = common global i32 0, align 4, !dbg !16
   @.str = private unnamed_addr constant [13 x i8] c"m(main): %d\0A\00", align 1

   ; Function Attrs: nounwind uwtable
   define i32 @main(i32 %argc, i8** nocapture readonly %argv) #0 !dbg !4 {
   entry:
     tail call void @llvm.dbg.value(metadata i32 %argc, i64 0, metadata !12, metadata !20), !dbg !21
     tail call void @llvm.dbg.value(metadata i8** %argv, i64 0, metadata !13, metadata !20), !dbg !22
     %cmp = icmp eq i32 %argc, 2, !dbg !24
     br i1 %cmp, label %if.else, label %if.end, !dbg !26

   if.else:                                          ; preds = %entry
     %arrayidx = getelementptr inbounds i8*, i8** %argv, i64 1, !dbg !27
     %0 = load i8*, i8** %arrayidx, align 8, !dbg !27, !tbaa !28
     %call = tail call i32 (i8*, ...) bitcast (i32 (...)* @atoi to i32 (i8*, ...)*)(i8* %0) #4, !dbg !32
     tail call void @llvm.dbg.value(metadata i32 %call, i64 0, metadata !14, metadata !20), !dbg !33
     br label %if.end

   if.end:                                           ; preds = %if.else, %entry
     %n.0 = phi i32 [ %call, %if.else ], [ 2, %entry ]
     %call1 = tail call i32 @change(i32 %n.0) #4, !dbg !34
     tail call void @llvm.dbg.value(metadata i32 %call1, i64 0, metadata !14, metadata !20), !dbg !33
     %cmp2 = icmp sgt i32 %call1, 10, !dbg !35
     br i1 %cmp2, label %if.then.3, label %if.else.5, !dbg !37

   if.then.3:                                        ; preds = %if.end
     %call4 = tail call i32 @modify(i32 %call1) #4, !dbg !38
     %add = add nsw i32 %call4, %call1, !dbg !40
     br label %if.end.7, !dbg !41

   if.else.5:                                        ; preds = %if.end
     %call6 = tail call i32 @inc(i32 %call1) #4, !dbg !42
     br label %if.end.7

   if.end.7:                                         ; preds = %if.else.5, %if.then.3
     %storemerge = phi i32 [ %call6, %if.else.5 ], [ %add, %if.then.3 ]
     store i32 %storemerge, i32* @m, align 4, !dbg !43, !tbaa !44
     %call8 = tail call i32 (i8*, ...) @printf(i8* nonnull getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), i32 %storemerge) #4, !dbg !46
     ret i32 0, !dbg !47
   }

   declare i32 @atoi(...) #1

   declare i32 @change(i32) #1

   declare i32 @modify(i32) #1

   declare i32 @inc(i32) #1

   ; Function Attrs: nounwind
   declare i32 @printf(i8* nocapture readonly, ...) #2

   ; Function Attrs: nounwind readnone
   declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #3

   attributes #0 = { nounwind uwtable }
   attributes #1 = { nounwind }
   attributes #2 = { nounwind }
   attributes #3 = { nounwind readnone }
   attributes #4 = { nounwind }

   !llvm.dbg.cu = !{!0}
   !llvm.module.flags = !{!17, !18}
   !llvm.ident = !{!19}

   !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 253049) ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !15)
   !1 = !DIFile(filename: "LiveDebugValues.c", directory: "/home/vt/julia/test/tvvikram")
   !2 = !{}
   !4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 6, type: !5, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11)
   !5 = !DISubroutineType(types: !6)
   !6 = !{!7, !7, !8}
   !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
   !8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, align: 64)
   !9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64, align: 64)
   !10 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
   !11 = !{!12, !13, !14}
   !12 = !DILocalVariable(name: "argc", arg: 1, scope: !4, file: !1, line: 6, type: !7)
   !13 = !DILocalVariable(name: "argv", arg: 2, scope: !4, file: !1, line: 6, type: !8)
   !14 = !DILocalVariable(name: "n", scope: !4, file: !1, line: 7, type: !7)
   !15 = !{!16}
   !16 = !DIGlobalVariableExpression(var: !DIGlobalVariable(name: "m", scope: !0, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true), expr: !DIExpression())
   !17 = !{i32 2, !"Dwarf Version", i32 4}
   !18 = !{i32 2, !"Debug Info Version", i32 3}
   !19 = !{!"clang version 3.8.0 (trunk 253049)"}
   !20 = !DIExpression()
   !21 = !DILocation(line: 6, column: 14, scope: !4)
   !22 = !DILocation(line: 6, column: 27, scope: !23)
   !23 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 1)
   !24 = !DILocation(line: 8, column: 12, scope: !25)
   !25 = distinct !DILexicalBlock(scope: !4, file: !1, line: 8, column: 7)
   !26 = !DILocation(line: 8, column: 7, scope: !4)
   !27 = !DILocation(line: 11, column: 14, scope: !25)
   !28 = !{!29, !29, i64 0}
   !29 = !{!"any pointer", !30, i64 0}
   !30 = !{!"omnipotent char", !31, i64 0}
   !31 = !{!"Simple C/C++ TBAA"}
   !32 = !DILocation(line: 11, column: 9, scope: !25)
   !33 = !DILocation(line: 7, column: 7, scope: !23)
   !34 = !DILocation(line: 12, column: 7, scope: !4)
   !35 = !DILocation(line: 13, column: 9, scope: !36)
   !36 = distinct !DILexicalBlock(scope: !4, file: !1, line: 13, column: 7)
   !37 = !DILocation(line: 13, column: 7, scope: !4)
   !38 = !DILocation(line: 14, column: 9, scope: !39)
   !39 = distinct !DILexicalBlock(scope: !36, file: !1, line: 13, column: 15)
   !40 = !DILocation(line: 15, column: 11, scope: !39)
   !41 = !DILocation(line: 16, column: 3, scope: !39)
   !42 = !DILocation(line: 18, column: 9, scope: !36)
   !43 = !DILocation(line: 15, column: 7, scope: !39)
   !44 = !{!45, !45, i64 0}
   !45 = !{!"int", !30, i64 0}
   !46 = !DILocation(line: 19, column: 3, scope: !4)
   !47 = !DILocation(line: 20, column: 3, scope: !4)

 ...
 ---
 name:            main
 alignment:       16
 exposesReturnsTwice: false
 tracksRegLiveness: true
 liveins:
   - { reg: '$edi' }
   - { reg: '$rsi' }
 calleeSavedRegisters: [ '$bh', '$bl', '$bp', '$bpl', '$bx', '$ebp', '$ebx',
                         '$rbp', '$rbx', '$r12', '$r13', '$r14', '$r15',
                         '$r12b', '$r13b', '$r14b', '$r15b', '$r12d', '$r13d',
                         '$r14d', '$r15d', '$r12w', '$r13w', '$r14w', '$r15w' ]
 frameInfo:
   isFrameAddressTaken: false
   isReturnAddressTaken: false
   hasStackMap:     false
   hasPatchPoint:   false
   stackSize:       8
   offsetAdjustment: 0
   maxAlignment:    0
   adjustsStack:    true
   hasCalls:        true
   maxCallFrameSize: 0
   hasOpaqueSPAdjustment: false
   hasVAStart:      false
   hasMustTailInVarArgFunc: false
 fixedStack:
   - { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16, callee-saved-register: '$rbx' }
 body:             |
   bb.0.entry:
     successors: %bb.1.if.else(16), %bb.2.if.end(16)
     liveins: $edi, $rsi, $rbx

     frame-setup PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp
     CFI_INSTRUCTION def_cfa_offset 16
     CFI_INSTRUCTION offset $rbx, -16
     DBG_VALUE $edi, _, !12, !20, debug-location !21
     DBG_VALUE $rsi, _, !13, !20, debug-location !22
     $eax = MOV32rr $edi
     DBG_VALUE $eax, _, !12, !20, debug-location !21
     $edi = MOV32ri 2
     CMP32ri8 killed $eax, 2, implicit-def $eflags, debug-location !26
     JCC_1 %bb.2.if.end, 5, implicit $eflags

   bb.1.if.else:
     successors: %bb.2.if.end(0)
     liveins: $rsi

     DBG_VALUE $rsi, _, !13, !20, debug-location !22
     $rdi = MOV64rm killed $rsi, 1, _, 8, _, debug-location !27 :: (load 8 from %ir.arrayidx, !tbaa !28)
     dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !32
     CALL64pcrel32 @atoi, csr_64, implicit $rsp, implicit $rdi, implicit $al, implicit-def $rsp, implicit-def $eax, debug-location !32
     $edi = MOV32rr $eax, debug-location !32
     DBG_VALUE $edi, _, !14, !20, debug-location !33

   bb.2.if.end:
     successors: %bb.3.if.then.3(16), %bb.4.if.else.5(16)
     liveins: $edi

     CALL64pcrel32 @change, csr_64, implicit $rsp, implicit $edi, implicit-def $rsp, implicit-def $eax, debug-location !34
     $ebx = MOV32rr $eax, debug-location !34
     DBG_VALUE $ebx, _, !14, !20, debug-location !33
     CMP32ri8 $ebx, 11, implicit-def $eflags, debug-location !37
     JCC_1 %bb.4.if.else.5, 12, implicit killed $eflags, debug-location !37

   bb.3.if.then.3:
     successors: %bb.5.if.end.7(0)
     liveins: $ebx

     DBG_VALUE $ebx, _, !14, !20, debug-location !33
     $edi = MOV32rr $ebx, debug-location !38
     CALL64pcrel32 @modify, csr_64, implicit $rsp, implicit $edi, implicit-def $rsp, implicit-def $eax, debug-location !38
     $ecx = MOV32rr $eax, debug-location !38
     $ecx = ADD32rr killed $ecx, killed $ebx, implicit-def dead $eflags, debug-location !40
     JMP_1 %bb.5.if.end.7

   bb.4.if.else.5:
     successors: %bb.5.if.end.7(0)
     liveins: $ebx

     DBG_VALUE $ebx, _, !14, !20, debug-location !33
     $edi = MOV32rr killed $ebx, debug-location !42
     CALL64pcrel32 @inc, csr_64, implicit $rsp, implicit $edi, implicit-def $rsp, implicit-def $eax, debug-location !42
     $ecx = MOV32rr $eax, debug-location !42

   bb.5.if.end.7:
     liveins: $ecx

     MOV32mr $rip, 1, _, @m, _, $ecx, debug-location !43 :: (store 4 into @m, !tbaa !44)
     dead undef $edi = MOV32ri @.str, implicit-def $rdi, debug-location !46
     dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !47
     $esi = MOV32rr killed $ecx, debug-location !46
     CALL64pcrel32 @printf, csr_64, implicit $rsp, implicit $rdi, implicit $esi, implicit $al, implicit-def $rsp, implicit-def dead $eax, debug-location !46
     $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, debug-location !47
     $rbx = POP64r implicit-def $rsp, implicit $rsp, debug-location !47
     RETQ $eax, debug-location !47

 ...
	# RUN: llc -run-pass=livedebugvalues -march=x86-64 -o - %s \| FileCheck %s

	# Test the extension of debug ranges from predecessors.
	# Generated from the source file LiveDebugValues.c:
	# #include <stdio.h>
	# int m;
	# extern int inc(int n);
	# extern int change(int n);
	# extern int modify(int n);
	# int main(int argc, char **argv) {
	# int n;
	# if (argc != 2)
	# n = 2;
	# else
	# n = atoi(argv[1]);
	# n = change(n);
	# if (n > 10) {
	# m = modify(n);
	# m = m + n; // var `m' doesn't has a dbg.value
	# }
	# else
	# m = inc(n); // var `m' doesn't has a dbg.value
	# printf("m(main): %d\n", m);
	# return 0;
	# }
	# with clang -g -O3 -c -emit-llvm LiveDebugValues.c -S -o live-debug-values.ll
	# then llc -stop-after stackmap-liveness live-debug-values.ll -o /dev/null > live-debug-values.mir
	# This case will also produce multiple locations but only the debug range
	# extension is tested here. This test case is tested with DWARF information under
	# llvm/test/DebugInfo/live-debug-values.ll and present here for testing under
	# MIR->MIR serialization.

	# DBG_VALUE for variable "n" is extended into %bb.5 from its predecessors %bb.3
	# and %bb.4.
	# CHECK: ![[N_VAR:[0-9]+]] = !DILocalVariable(name: "n",{{.*}})
	#
	# CHECK: bb.5.if.end.7:
	# CHECK: DBG_VALUE $ebx, $noreg, ![[N_VAR]], !DIExpression()


	--- \|
	; ModuleID = 'live-debug-values.ll'
	target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
	target triple = "x86_64-unknown-linux-gnu"

	@m = common global i32 0, align 4, !dbg !16
	@.str = private unnamed_addr constant [13 x i8] c"m(main): %d\0A\00", align 1

	; Function Attrs: nounwind uwtable
	define i32 @main(i32 %argc, i8** nocapture readonly %argv) #0 !dbg !4 {
	entry:
	tail call void @llvm.dbg.value(metadata i32 %argc, i64 0, metadata !12, metadata !20), !dbg !21
	tail call void @llvm.dbg.value(metadata i8** %argv, i64 0, metadata !13, metadata !20), !dbg !22
	%cmp = icmp eq i32 %argc, 2, !dbg !24
	br i1 %cmp, label %if.else, label %if.end, !dbg !26

	if.else: ; preds = %entry
	%arrayidx = getelementptr inbounds i8, i8* %argv, i64 1, !dbg !27
	%0 = load i8, i8* %arrayidx, align 8, !dbg !27, !tbaa !28
	%call = tail call i32 (i8, ...) bitcast (i32 (...) @atoi to i32 (i8, ...))(i8* %0) #4, !dbg !32
	tail call void @llvm.dbg.value(metadata i32 %call, i64 0, metadata !14, metadata !20), !dbg !33
	br label %if.end

	if.end: ; preds = %if.else, %entry
	%n.0 = phi i32 [ %call, %if.else ], [ 2, %entry ]
	%call1 = tail call i32 @change(i32 %n.0) #4, !dbg !34
	tail call void @llvm.dbg.value(metadata i32 %call1, i64 0, metadata !14, metadata !20), !dbg !33
	%cmp2 = icmp sgt i32 %call1, 10, !dbg !35
	br i1 %cmp2, label %if.then.3, label %if.else.5, !dbg !37

	if.then.3: ; preds = %if.end
	%call4 = tail call i32 @modify(i32 %call1) #4, !dbg !38
	%add = add nsw i32 %call4, %call1, !dbg !40
	br label %if.end.7, !dbg !41

	if.else.5: ; preds = %if.end
	%call6 = tail call i32 @inc(i32 %call1) #4, !dbg !42
	br label %if.end.7

	if.end.7: ; preds = %if.else.5, %if.then.3
	%storemerge = phi i32 [ %call6, %if.else.5 ], [ %add, %if.then.3 ]
	store i32 %storemerge, i32* @m, align 4, !dbg !43, !tbaa !44
	%call8 = tail call i32 (i8, ...) @printf(i8 nonnull getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), i32 %storemerge) #4, !dbg !46
	ret i32 0, !dbg !47
	}

	declare i32 @atoi(...) #1

	declare i32 @change(i32) #1

	declare i32 @modify(i32) #1

	declare i32 @inc(i32) #1

	; Function Attrs: nounwind
	declare i32 @printf(i8* nocapture readonly, ...) #2

	; Function Attrs: nounwind readnone
	declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #3

	attributes #0 = { nounwind uwtable }
	attributes #1 = { nounwind }
	attributes #2 = { nounwind }
	attributes #3 = { nounwind readnone }
	attributes #4 = { nounwind }

	!llvm.dbg.cu = !{!0}
	!llvm.module.flags = !{!17, !18}
	!llvm.ident = !{!19}

	!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 253049) ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !15)
	!1 = !DIFile(filename: "LiveDebugValues.c", directory: "/home/vt/julia/test/tvvikram")
	!2 = !{}
	!4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 6, type: !5, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11)
	!5 = !DISubroutineType(types: !6)
	!6 = !{!7, !7, !8}
	!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
	!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, align: 64)
	!9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64, align: 64)
	!10 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
	!11 = !{!12, !13, !14}
	!12 = !DILocalVariable(name: "argc", arg: 1, scope: !4, file: !1, line: 6, type: !7)
	!13 = !DILocalVariable(name: "argv", arg: 2, scope: !4, file: !1, line: 6, type: !8)
	!14 = !DILocalVariable(name: "n", scope: !4, file: !1, line: 7, type: !7)
	!15 = !{!16}
	!16 = !DIGlobalVariableExpression(var: !DIGlobalVariable(name: "m", scope: !0, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true), expr: !DIExpression())
	!17 = !{i32 2, !"Dwarf Version", i32 4}
	!18 = !{i32 2, !"Debug Info Version", i32 3}
	!19 = !{!"clang version 3.8.0 (trunk 253049)"}
	!20 = !DIExpression()
	!21 = !DILocation(line: 6, column: 14, scope: !4)
	!22 = !DILocation(line: 6, column: 27, scope: !23)
	!23 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 1)
	!24 = !DILocation(line: 8, column: 12, scope: !25)
	!25 = distinct !DILexicalBlock(scope: !4, file: !1, line: 8, column: 7)
	!26 = !DILocation(line: 8, column: 7, scope: !4)
	!27 = !DILocation(line: 11, column: 14, scope: !25)
	!28 = !{!29, !29, i64 0}
	!29 = !{!"any pointer", !30, i64 0}
	!30 = !{!"omnipotent char", !31, i64 0}
	!31 = !{!"Simple C/C++ TBAA"}
	!32 = !DILocation(line: 11, column: 9, scope: !25)
	!33 = !DILocation(line: 7, column: 7, scope: !23)
	!34 = !DILocation(line: 12, column: 7, scope: !4)
	!35 = !DILocation(line: 13, column: 9, scope: !36)
	!36 = distinct !DILexicalBlock(scope: !4, file: !1, line: 13, column: 7)
	!37 = !DILocation(line: 13, column: 7, scope: !4)
	!38 = !DILocation(line: 14, column: 9, scope: !39)
	!39 = distinct !DILexicalBlock(scope: !36, file: !1, line: 13, column: 15)
	!40 = !DILocation(line: 15, column: 11, scope: !39)
	!41 = !DILocation(line: 16, column: 3, scope: !39)
	!42 = !DILocation(line: 18, column: 9, scope: !36)
	!43 = !DILocation(line: 15, column: 7, scope: !39)
	!44 = !{!45, !45, i64 0}
	!45 = !{!"int", !30, i64 0}
	!46 = !DILocation(line: 19, column: 3, scope: !4)
	!47 = !DILocation(line: 20, column: 3, scope: !4)

	...
	---
	name: main
	alignment: 16
	exposesReturnsTwice: false
	tracksRegLiveness: true
	liveins:
	- { reg: '$edi' }
	- { reg: '$rsi' }
	calleeSavedRegisters: [ '$bh', '$bl', '$bp', '$bpl', '$bx', '$ebp', '$ebx',
	'$rbp', '$rbx', '$r12', '$r13', '$r14', '$r15',
	'$r12b', '$r13b', '$r14b', '$r15b', '$r12d', '$r13d',
	'$r14d', '$r15d', '$r12w', '$r13w', '$r14w', '$r15w' ]
	frameInfo:
	isFrameAddressTaken: false
	isReturnAddressTaken: false
	hasStackMap: false
	hasPatchPoint: false
	stackSize: 8
	offsetAdjustment: 0
	maxAlignment: 0
	adjustsStack: true
	hasCalls: true
	maxCallFrameSize: 0
	hasOpaqueSPAdjustment: false
	hasVAStart: false
	hasMustTailInVarArgFunc: false
	fixedStack:
	- { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16, callee-saved-register: '$rbx' }
	body: \|
	bb.0.entry:
	successors: %bb.1.if.else(16), %bb.2.if.end(16)
	liveins: $edi, $rsi, $rbx

	frame-setup PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp
	CFI_INSTRUCTION def_cfa_offset 16
	CFI_INSTRUCTION offset $rbx, -16
	DBG_VALUE $edi, _, !12, !20, debug-location !21
	DBG_VALUE $rsi, _, !13, !20, debug-location !22
	$eax = MOV32rr $edi
	DBG_VALUE $eax, _, !12, !20, debug-location !21
	$edi = MOV32ri 2
	CMP32ri8 killed $eax, 2, implicit-def $eflags, debug-location !26
	JCC_1 %bb.2.if.end, 5, implicit $eflags

	bb.1.if.else:
	successors: %bb.2.if.end(0)
	liveins: $rsi

	DBG_VALUE $rsi, _, !13, !20, debug-location !22
	$rdi = MOV64rm killed $rsi, 1, _, 8, _, debug-location !27 :: (load 8 from %ir.arrayidx, !tbaa !28)
	dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !32
	CALL64pcrel32 @atoi, csr_64, implicit $rsp, implicit $rdi, implicit $al, implicit-def $rsp, implicit-def $eax, debug-location !32
	$edi = MOV32rr $eax, debug-location !32
	DBG_VALUE $edi, _, !14, !20, debug-location !33

	bb.2.if.end:
	successors: %bb.3.if.then.3(16), %bb.4.if.else.5(16)
	liveins: $edi

	CALL64pcrel32 @change, csr_64, implicit $rsp, implicit $edi, implicit-def $rsp, implicit-def $eax, debug-location !34
	$ebx = MOV32rr $eax, debug-location !34
	DBG_VALUE $ebx, _, !14, !20, debug-location !33
	CMP32ri8 $ebx, 11, implicit-def $eflags, debug-location !37
	JCC_1 %bb.4.if.else.5, 12, implicit killed $eflags, debug-location !37

	bb.3.if.then.3:
	successors: %bb.5.if.end.7(0)
	liveins: $ebx

	DBG_VALUE $ebx, _, !14, !20, debug-location !33
	$edi = MOV32rr $ebx, debug-location !38
	CALL64pcrel32 @modify, csr_64, implicit $rsp, implicit $edi, implicit-def $rsp, implicit-def $eax, debug-location !38
	$ecx = MOV32rr $eax, debug-location !38
	$ecx = ADD32rr killed $ecx, killed $ebx, implicit-def dead $eflags, debug-location !40
	JMP_1 %bb.5.if.end.7

	bb.4.if.else.5:
	successors: %bb.5.if.end.7(0)
	liveins: $ebx

	DBG_VALUE $ebx, _, !14, !20, debug-location !33
	$edi = MOV32rr killed $ebx, debug-location !42
	CALL64pcrel32 @inc, csr_64, implicit $rsp, implicit $edi, implicit-def $rsp, implicit-def $eax, debug-location !42
	$ecx = MOV32rr $eax, debug-location !42

	bb.5.if.end.7:
	liveins: $ecx

	MOV32mr $rip, 1, _, @m, _, $ecx, debug-location !43 :: (store 4 into @m, !tbaa !44)
	dead undef $edi = MOV32ri @.str, implicit-def $rdi, debug-location !46
	dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !47
	$esi = MOV32rr killed $ecx, debug-location !46
	CALL64pcrel32 @printf, csr_64, implicit $rsp, implicit $rdi, implicit $esi, implicit $al, implicit-def $rsp, implicit-def dead $eax, debug-location !46
	$eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, debug-location !47
	$rbx = POP64r implicit-def $rsp, implicit $rsp, debug-location !47
	RETQ $eax, debug-location !47

	...