test/DebugInfo/MIR/X86/live-debug-values-3preds.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 3 predecessors.
 # Generated from the source file LiveDebugValues-3preds.c:
 # #include <stdio.h>
 # int add(int x, int y, int z, int a) {
 #  int i;
 #  for (i = 0; i < x * y; i++) {
 #    if (i < x) {
 #      a = a * x;
 #      break;
 #    }
 #    if (i < y) {
 #      a = a * y;
 #      break;
 #    }
 #    if (i < z) {
 #      a = a * z;
 #      break;
 #    }
 #  }
 #  return a;
 # }
 # with clang -g -O1 -c -emit-llvm LiveDebugValues-3preds.c -S -o live-debug-values-3preds.ll
 # then llc -stop-after stackmap-liveness live-debug-values-3preds.ll -o /dev/null > live-debug-values-3preds.mir

 # CHECK: ![[X_VAR:[0-9]+]] = !DILocalVariable(name: "x", {{.*}})
 # CHECK: ![[Y_VAR:[0-9]+]] = !DILocalVariable(name: "y", {{.*}})
 # CHECK: ![[Z_VAR:[0-9]+]] = !DILocalVariable(name: "z", {{.*}})

 # DBG_VALUE for variables "x", "y" and "z" are extended into %bb.9 from its
 # predecessors %bb.0, %bb.2 and %bb.8.
 # CHECK:      bb.9.for.end:
 # CHECK-DAG:  DBG_VALUE $edi, $noreg, ![[X_VAR]], !DIExpression()
 # CHECK-DAG:  DBG_VALUE $esi, $noreg, ![[Y_VAR]], !DIExpression()
 # CHECK-DAG:  DBG_VALUE $edx, $noreg, ![[Z_VAR]], !DIExpression()
 # CHECK:      RET

 --- |
   ; ModuleID = 'live-debug-values-3preds.ll'
   target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
   target triple = "x86_64-unknown-linux-gnu"

   ; Function Attrs: norecurse nounwind readnone uwtable
   define i32 @add(i32 %x, i32 %y, i32 %z, i32 %a) #0 !dbg !4 {
   entry:
     tail call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !9, metadata !17), !dbg !18
     tail call void @llvm.dbg.value(metadata i32 %y, i64 0, metadata !10, metadata !17), !dbg !19
     tail call void @llvm.dbg.value(metadata i32 %z, i64 0, metadata !11, metadata !17), !dbg !21
     tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !12, metadata !17), !dbg !23
     tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !13, metadata !17), !dbg !25
     %mul = mul nsw i32 %y, %x, !dbg !26
     %cmp.24 = icmp sgt i32 %mul, 0, !dbg !30
     br i1 %cmp.24, label %for.body.preheader, label %for.end, !dbg !31

   for.body.preheader:                               ; preds = %entry
     br label %for.body, !dbg !32

   for.cond:                                         ; preds = %if.end.6
     %cmp = icmp slt i32 %inc, %mul, !dbg !30
     br i1 %cmp, label %for.body, label %for.end, !dbg !31

   for.body:                                         ; preds = %for.cond, %for.body.preheader
     %i.025 = phi i32 [ %inc, %for.cond ], [ 0, %for.body.preheader ]
     %0 = icmp sgt i32 %x, 0
     br i1 %0, label %if.then, label %if.end, !dbg !35

   if.then:                                          ; preds = %for.body
     %mul2 = mul nsw i32 %a, %x, !dbg !36
     tail call void @llvm.dbg.value(metadata i32 %mul2, i64 0, metadata !12, metadata !17), !dbg !23
     br label %for.end, !dbg !38

   if.end:                                           ; preds = %for.body
     %1 = icmp sgt i32 %y, 0
     br i1 %1, label %if.then.4, label %if.end.6, !dbg !39

   if.then.4:                                        ; preds = %if.end
     %mul5 = mul nsw i32 %a, %y, !dbg !40
     tail call void @llvm.dbg.value(metadata i32 %mul5, i64 0, metadata !12, metadata !17), !dbg !23
     br label %for.end, !dbg !43

   if.end.6:                                         ; preds = %if.end
     %2 = icmp sgt i32 %z, 0
     %inc = add nuw nsw i32 %i.025, 1, !dbg !44
     tail call void @llvm.dbg.value(metadata i32 %inc, i64 0, metadata !13, metadata !17), !dbg !25
     br i1 %2, label %if.then.8, label %for.cond, !dbg !45

   if.then.8:                                        ; preds = %if.end.6
     %mul9 = mul nsw i32 %a, %z, !dbg !46
     tail call void @llvm.dbg.value(metadata i32 %mul9, i64 0, metadata !12, metadata !17), !dbg !23
     br label %for.end, !dbg !49

   for.end:                                          ; preds = %for.cond, %if.then.8, %if.then.4, %if.then, %entry
     %a.addr.0 = phi i32 [ %mul2, %if.then ], [ %mul5, %if.then.4 ], [ %mul9, %if.then.8 ], [ %a, %entry ], [ %a, %for.cond ]
     ret i32 %a.addr.0, !dbg !50
   }

   ; Function Attrs: nounwind readnone
   declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1

   attributes #0 = { norecurse nounwind readnone uwtable }
   attributes #1 = { nounwind readnone }

   !llvm.dbg.cu = !{!0}
   !llvm.module.flags = !{!14, !15}
   !llvm.ident = !{!16}

   !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)
   !1 = !DIFile(filename: "LiveDebugValues-3preds.c", directory: "/home/vt/julia/test/tvvikram")
   !2 = !{}
   !4 = distinct !DISubprogram(name: "add", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8)
   !5 = !DISubroutineType(types: !6)
   !6 = !{!7, !7, !7, !7, !7}
   !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
   !8 = !{!9, !10, !11, !12, !13}
   !9 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !1, line: 1, type: !7)
   !10 = !DILocalVariable(name: "y", arg: 2, scope: !4, file: !1, line: 1, type: !7)
   !11 = !DILocalVariable(name: "z", arg: 3, scope: !4, file: !1, line: 1, type: !7)
   !12 = !DILocalVariable(name: "a", arg: 4, scope: !4, file: !1, line: 1, type: !7)
   !13 = !DILocalVariable(name: "i", scope: !4, file: !1, line: 2, type: !7)
   !14 = !{i32 2, !"Dwarf Version", i32 4}
   !15 = !{i32 2, !"Debug Info Version", i32 3}
   !16 = !{!"clang version 3.8.0 (trunk 253049) "}
   !17 = !DIExpression()
   !18 = !DILocation(line: 1, column: 13, scope: !4)
   !19 = !DILocation(line: 1, column: 20, scope: !20)
   !20 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 1)
   !21 = !DILocation(line: 1, column: 27, scope: !22)
   !22 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 2)
   !23 = !DILocation(line: 1, column: 34, scope: !24)
   !24 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 3)
   !25 = !DILocation(line: 2, column: 7, scope: !20)
   !26 = !DILocation(line: 3, column: 21, scope: !27)
   !27 = !DILexicalBlockFile(scope: !28, file: !1, discriminator: 1)
   !28 = distinct !DILexicalBlock(scope: !29, file: !1, line: 3, column: 3)
   !29 = distinct !DILexicalBlock(scope: !4, file: !1, line: 3, column: 3)
   !30 = !DILocation(line: 3, column: 17, scope: !27)
   !31 = !DILocation(line: 3, column: 3, scope: !27)
   !32 = !DILocation(line: 4, column: 11, scope: !33)
   !33 = distinct !DILexicalBlock(scope: !34, file: !1, line: 4, column: 9)
   !34 = distinct !DILexicalBlock(scope: !28, file: !1, line: 3, column: 31)
   !35 = !DILocation(line: 4, column: 9, scope: !34)
   !36 = !DILocation(line: 5, column: 13, scope: !37)
   !37 = distinct !DILexicalBlock(scope: !33, file: !1, line: 4, column: 16)
   !38 = !DILocation(line: 6, column: 7, scope: !37)
   !39 = !DILocation(line: 8, column: 9, scope: !34)
   !40 = !DILocation(line: 9, column: 13, scope: !41)
   !41 = distinct !DILexicalBlock(scope: !42, file: !1, line: 8, column: 16)
   !42 = distinct !DILexicalBlock(scope: !34, file: !1, line: 8, column: 9)
   !43 = !DILocation(line: 10, column: 7, scope: !41)
   !44 = !DILocation(line: 3, column: 27, scope: !28)
   !45 = !DILocation(line: 12, column: 9, scope: !34)
   !46 = !DILocation(line: 13, column: 13, scope: !47)
   !47 = distinct !DILexicalBlock(scope: !48, file: !1, line: 12, column: 16)
   !48 = distinct !DILexicalBlock(scope: !34, file: !1, line: 12, column: 9)
   !49 = !DILocation(line: 14, column: 7, scope: !47)
   !50 = !DILocation(line: 17, column: 3, scope: !4)

 ...
 ---
 name:            add
 alignment:       16
 exposesReturnsTwice: false
 tracksRegLiveness: true
 liveins:
   - { reg: '$edi' }
   - { reg: '$esi' }
   - { reg: '$edx' }
   - { reg: '$ecx' }
 frameInfo:
   isFrameAddressTaken: false
   isReturnAddressTaken: false
   hasStackMap:     false
   hasPatchPoint:   false
   stackSize:       0
   offsetAdjustment: 0
   maxAlignment:    0
   adjustsStack:    false
   hasCalls:        false
   maxCallFrameSize: 0
   hasOpaqueSPAdjustment: false
   hasVAStart:      false
   hasMustTailInVarArgFunc: false
 body:             |
   bb.0.entry:
     successors: %bb.1.for.body.preheader(20), %bb.9.for.end(12)
     liveins: $ecx, $edi, $edx, $esi

     DBG_VALUE $edi, _, !9, !17, debug-location !18
     DBG_VALUE $esi, _, !10, !17, debug-location !19
     DBG_VALUE $edx, _, !11, !17, debug-location !21
     DBG_VALUE $ecx, _, !12, !17, debug-location !23
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     $r8d = MOV32rr $esi, debug-location !26
     $r8d = IMUL32rr killed $r8d, $edi, implicit-def dead $eflags, debug-location !26
     TEST32rr $r8d, $r8d, implicit-def $eflags, debug-location !31
     JCC_1 %bb.9.for.end, 14, implicit $eflags

   bb.1.for.body.preheader:
     successors: %bb.3.for.body(0)
     liveins: $ecx, $edi, $edx, $esi, $r8d

     DBG_VALUE $edi, _, !9, !17, debug-location !18
     DBG_VALUE $esi, _, !10, !17, debug-location !19
     DBG_VALUE $edx, _, !11, !17, debug-location !21
     DBG_VALUE $ecx, _, !12, !17, debug-location !23
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags

   bb.3.for.body (align 4):
     successors: %bb.4.if.then(4), %bb.5.if.end(124)
     liveins: $eax, $ecx, $edi, $edx, $esi, $r8d

     DBG_VALUE $edi, _, !9, !17, debug-location !18
     DBG_VALUE $esi, _, !10, !17, debug-location !19
     DBG_VALUE $edx, _, !11, !17, debug-location !21
     DBG_VALUE $ecx, _, !12, !17, debug-location !23
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     TEST32rr $edi, $edi, implicit-def $eflags, debug-location !35
     JCC_1 %bb.4.if.then, 15, implicit $eflags

   bb.5.if.end:
     successors: %bb.6.if.then.4(4), %bb.7.if.end.6(124)
     liveins: $eax, $ecx, $edi, $edx, $esi, $r8d

     DBG_VALUE $edi, _, !9, !17, debug-location !18
     DBG_VALUE $esi, _, !10, !17, debug-location !19
     DBG_VALUE $edx, _, !11, !17, debug-location !21
     DBG_VALUE $ecx, _, !12, !17, debug-location !23
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     TEST32rr $esi, $esi, implicit-def $eflags, debug-location !39
     JCC_1 %bb.6.if.then.4, 15, implicit $eflags

   bb.7.if.end.6:
     successors: %bb.8.if.then.8(4), %bb.2.for.cond(124)
     liveins: $eax, $ecx, $edi, $edx, $esi, $r8d

     DBG_VALUE $edi, _, !9, !17, debug-location !18
     DBG_VALUE $esi, _, !10, !17, debug-location !19
     DBG_VALUE $edx, _, !11, !17, debug-location !21
     DBG_VALUE $ecx, _, !12, !17, debug-location !23
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     TEST32rr $edx, $edx, implicit-def $eflags, debug-location !45
     JCC_1 %bb.8.if.then.8, 15, implicit $eflags

   bb.2.for.cond:
     successors: %bb.3.for.body(124), %bb.9.for.end(4)
     liveins: $eax, $ecx, $edi, $edx, $esi, $r8d

     DBG_VALUE $edi, _, !9, !17, debug-location !18
     DBG_VALUE $esi, _, !10, !17, debug-location !19
     DBG_VALUE $edx, _, !11, !17, debug-location !21
     DBG_VALUE $ecx, _, !12, !17, debug-location !23
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     $eax = INC32r killed $eax, implicit-def dead $eflags, debug-location !44
     DBG_VALUE $eax, _, !13, !17, debug-location !25
     CMP32rr $eax, $r8d, implicit-def $eflags, debug-location !31
     JCC_1 %bb.3.for.body, 12, implicit $eflags
     JMP_1 %bb.9.for.end

   bb.4.if.then:
     liveins: $ecx, $edi

     DBG_VALUE $edi, _, !9, !17, debug-location !18
     DBG_VALUE $ecx, _, !12, !17, debug-location !23
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     $ecx = IMUL32rr killed $ecx, killed $edi, implicit-def dead $eflags, debug-location !36
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     $eax = MOV32rr killed $ecx, debug-location !50
     RETQ $eax, debug-location !50

   bb.6.if.then.4:
     liveins: $ecx, $esi

     DBG_VALUE $esi, _, !10, !17, debug-location !19
     DBG_VALUE $ecx, _, !12, !17, debug-location !23
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     $ecx = IMUL32rr killed $ecx, killed $esi, implicit-def dead $eflags, debug-location !40
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     $eax = MOV32rr killed $ecx, debug-location !50
     RETQ $eax, debug-location !50

   bb.8.if.then.8:
     successors: %bb.9.for.end(0)
     liveins: $ecx, $edx

     DBG_VALUE $edx, _, !11, !17, debug-location !21
     DBG_VALUE $ecx, _, !12, !17, debug-location !23
     DBG_VALUE 0, 0, !13, !17, debug-location !25
     $ecx = IMUL32rr killed $ecx, killed $edx, implicit-def dead $eflags, debug-location !46

   bb.9.for.end:
     liveins: $ecx

     DBG_VALUE 0, 0, !13, !17, debug-location !25
     $eax = MOV32rr killed $ecx, debug-location !50
     RETQ $eax, debug-location !50

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

	# Test the extension of debug ranges from 3 predecessors.
	# Generated from the source file LiveDebugValues-3preds.c:
	# #include <stdio.h>
	# int add(int x, int y, int z, int a) {
	# int i;
	# for (i = 0; i < x * y; i++) {
	# if (i < x) {
	# a = a * x;
	# break;
	# }
	# if (i < y) {
	# a = a * y;
	# break;
	# }
	# if (i < z) {
	# a = a * z;
	# break;
	# }
	# }
	# return a;
	# }
	# with clang -g -O1 -c -emit-llvm LiveDebugValues-3preds.c -S -o live-debug-values-3preds.ll
	# then llc -stop-after stackmap-liveness live-debug-values-3preds.ll -o /dev/null > live-debug-values-3preds.mir

	# CHECK: ![[X_VAR:[0-9]+]] = !DILocalVariable(name: "x", {{.*}})
	# CHECK: ![[Y_VAR:[0-9]+]] = !DILocalVariable(name: "y", {{.*}})
	# CHECK: ![[Z_VAR:[0-9]+]] = !DILocalVariable(name: "z", {{.*}})

	# DBG_VALUE for variables "x", "y" and "z" are extended into %bb.9 from its
	# predecessors %bb.0, %bb.2 and %bb.8.
	# CHECK: bb.9.for.end:
	# CHECK-DAG: DBG_VALUE $edi, $noreg, ![[X_VAR]], !DIExpression()
	# CHECK-DAG: DBG_VALUE $esi, $noreg, ![[Y_VAR]], !DIExpression()
	# CHECK-DAG: DBG_VALUE $edx, $noreg, ![[Z_VAR]], !DIExpression()
	# CHECK: RET

	--- \|
	; ModuleID = 'live-debug-values-3preds.ll'
	target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
	target triple = "x86_64-unknown-linux-gnu"

	; Function Attrs: norecurse nounwind readnone uwtable
	define i32 @add(i32 %x, i32 %y, i32 %z, i32 %a) #0 !dbg !4 {
	entry:
	tail call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !9, metadata !17), !dbg !18
	tail call void @llvm.dbg.value(metadata i32 %y, i64 0, metadata !10, metadata !17), !dbg !19
	tail call void @llvm.dbg.value(metadata i32 %z, i64 0, metadata !11, metadata !17), !dbg !21
	tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !12, metadata !17), !dbg !23
	tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !13, metadata !17), !dbg !25
	%mul = mul nsw i32 %y, %x, !dbg !26
	%cmp.24 = icmp sgt i32 %mul, 0, !dbg !30
	br i1 %cmp.24, label %for.body.preheader, label %for.end, !dbg !31

	for.body.preheader: ; preds = %entry
	br label %for.body, !dbg !32

	for.cond: ; preds = %if.end.6
	%cmp = icmp slt i32 %inc, %mul, !dbg !30
	br i1 %cmp, label %for.body, label %for.end, !dbg !31

	for.body: ; preds = %for.cond, %for.body.preheader
	%i.025 = phi i32 [ %inc, %for.cond ], [ 0, %for.body.preheader ]
	%0 = icmp sgt i32 %x, 0
	br i1 %0, label %if.then, label %if.end, !dbg !35

	if.then: ; preds = %for.body
	%mul2 = mul nsw i32 %a, %x, !dbg !36
	tail call void @llvm.dbg.value(metadata i32 %mul2, i64 0, metadata !12, metadata !17), !dbg !23
	br label %for.end, !dbg !38

	if.end: ; preds = %for.body
	%1 = icmp sgt i32 %y, 0
	br i1 %1, label %if.then.4, label %if.end.6, !dbg !39

	if.then.4: ; preds = %if.end
	%mul5 = mul nsw i32 %a, %y, !dbg !40
	tail call void @llvm.dbg.value(metadata i32 %mul5, i64 0, metadata !12, metadata !17), !dbg !23
	br label %for.end, !dbg !43

	if.end.6: ; preds = %if.end
	%2 = icmp sgt i32 %z, 0
	%inc = add nuw nsw i32 %i.025, 1, !dbg !44
	tail call void @llvm.dbg.value(metadata i32 %inc, i64 0, metadata !13, metadata !17), !dbg !25
	br i1 %2, label %if.then.8, label %for.cond, !dbg !45

	if.then.8: ; preds = %if.end.6
	%mul9 = mul nsw i32 %a, %z, !dbg !46
	tail call void @llvm.dbg.value(metadata i32 %mul9, i64 0, metadata !12, metadata !17), !dbg !23
	br label %for.end, !dbg !49

	for.end: ; preds = %for.cond, %if.then.8, %if.then.4, %if.then, %entry
	%a.addr.0 = phi i32 [ %mul2, %if.then ], [ %mul5, %if.then.4 ], [ %mul9, %if.then.8 ], [ %a, %entry ], [ %a, %for.cond ]
	ret i32 %a.addr.0, !dbg !50
	}

	; Function Attrs: nounwind readnone
	declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1

	attributes #0 = { norecurse nounwind readnone uwtable }
	attributes #1 = { nounwind readnone }

	!llvm.dbg.cu = !{!0}
	!llvm.module.flags = !{!14, !15}
	!llvm.ident = !{!16}

	!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)
	!1 = !DIFile(filename: "LiveDebugValues-3preds.c", directory: "/home/vt/julia/test/tvvikram")
	!2 = !{}
	!4 = distinct !DISubprogram(name: "add", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8)
	!5 = !DISubroutineType(types: !6)
	!6 = !{!7, !7, !7, !7, !7}
	!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
	!8 = !{!9, !10, !11, !12, !13}
	!9 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !1, line: 1, type: !7)
	!10 = !DILocalVariable(name: "y", arg: 2, scope: !4, file: !1, line: 1, type: !7)
	!11 = !DILocalVariable(name: "z", arg: 3, scope: !4, file: !1, line: 1, type: !7)
	!12 = !DILocalVariable(name: "a", arg: 4, scope: !4, file: !1, line: 1, type: !7)
	!13 = !DILocalVariable(name: "i", scope: !4, file: !1, line: 2, type: !7)
	!14 = !{i32 2, !"Dwarf Version", i32 4}
	!15 = !{i32 2, !"Debug Info Version", i32 3}
	!16 = !{!"clang version 3.8.0 (trunk 253049) "}
	!17 = !DIExpression()
	!18 = !DILocation(line: 1, column: 13, scope: !4)
	!19 = !DILocation(line: 1, column: 20, scope: !20)
	!20 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 1)
	!21 = !DILocation(line: 1, column: 27, scope: !22)
	!22 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 2)
	!23 = !DILocation(line: 1, column: 34, scope: !24)
	!24 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 3)
	!25 = !DILocation(line: 2, column: 7, scope: !20)
	!26 = !DILocation(line: 3, column: 21, scope: !27)
	!27 = !DILexicalBlockFile(scope: !28, file: !1, discriminator: 1)
	!28 = distinct !DILexicalBlock(scope: !29, file: !1, line: 3, column: 3)
	!29 = distinct !DILexicalBlock(scope: !4, file: !1, line: 3, column: 3)
	!30 = !DILocation(line: 3, column: 17, scope: !27)
	!31 = !DILocation(line: 3, column: 3, scope: !27)
	!32 = !DILocation(line: 4, column: 11, scope: !33)
	!33 = distinct !DILexicalBlock(scope: !34, file: !1, line: 4, column: 9)
	!34 = distinct !DILexicalBlock(scope: !28, file: !1, line: 3, column: 31)
	!35 = !DILocation(line: 4, column: 9, scope: !34)
	!36 = !DILocation(line: 5, column: 13, scope: !37)
	!37 = distinct !DILexicalBlock(scope: !33, file: !1, line: 4, column: 16)
	!38 = !DILocation(line: 6, column: 7, scope: !37)
	!39 = !DILocation(line: 8, column: 9, scope: !34)
	!40 = !DILocation(line: 9, column: 13, scope: !41)
	!41 = distinct !DILexicalBlock(scope: !42, file: !1, line: 8, column: 16)
	!42 = distinct !DILexicalBlock(scope: !34, file: !1, line: 8, column: 9)
	!43 = !DILocation(line: 10, column: 7, scope: !41)
	!44 = !DILocation(line: 3, column: 27, scope: !28)
	!45 = !DILocation(line: 12, column: 9, scope: !34)
	!46 = !DILocation(line: 13, column: 13, scope: !47)
	!47 = distinct !DILexicalBlock(scope: !48, file: !1, line: 12, column: 16)
	!48 = distinct !DILexicalBlock(scope: !34, file: !1, line: 12, column: 9)
	!49 = !DILocation(line: 14, column: 7, scope: !47)
	!50 = !DILocation(line: 17, column: 3, scope: !4)

	...
	---
	name: add
	alignment: 16
	exposesReturnsTwice: false
	tracksRegLiveness: true
	liveins:
	- { reg: '$edi' }
	- { reg: '$esi' }
	- { reg: '$edx' }
	- { reg: '$ecx' }
	frameInfo:
	isFrameAddressTaken: false
	isReturnAddressTaken: false
	hasStackMap: false
	hasPatchPoint: false
	stackSize: 0
	offsetAdjustment: 0
	maxAlignment: 0
	adjustsStack: false
	hasCalls: false
	maxCallFrameSize: 0
	hasOpaqueSPAdjustment: false
	hasVAStart: false
	hasMustTailInVarArgFunc: false
	body: \|
	bb.0.entry:
	successors: %bb.1.for.body.preheader(20), %bb.9.for.end(12)
	liveins: $ecx, $edi, $edx, $esi

	DBG_VALUE $edi, _, !9, !17, debug-location !18
	DBG_VALUE $esi, _, !10, !17, debug-location !19
	DBG_VALUE $edx, _, !11, !17, debug-location !21
	DBG_VALUE $ecx, _, !12, !17, debug-location !23
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	$r8d = MOV32rr $esi, debug-location !26
	$r8d = IMUL32rr killed $r8d, $edi, implicit-def dead $eflags, debug-location !26
	TEST32rr $r8d, $r8d, implicit-def $eflags, debug-location !31
	JCC_1 %bb.9.for.end, 14, implicit $eflags

	bb.1.for.body.preheader:
	successors: %bb.3.for.body(0)
	liveins: $ecx, $edi, $edx, $esi, $r8d

	DBG_VALUE $edi, _, !9, !17, debug-location !18
	DBG_VALUE $esi, _, !10, !17, debug-location !19
	DBG_VALUE $edx, _, !11, !17, debug-location !21
	DBG_VALUE $ecx, _, !12, !17, debug-location !23
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	$eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags

	bb.3.for.body (align 4):
	successors: %bb.4.if.then(4), %bb.5.if.end(124)
	liveins: $eax, $ecx, $edi, $edx, $esi, $r8d

	DBG_VALUE $edi, _, !9, !17, debug-location !18
	DBG_VALUE $esi, _, !10, !17, debug-location !19
	DBG_VALUE $edx, _, !11, !17, debug-location !21
	DBG_VALUE $ecx, _, !12, !17, debug-location !23
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	TEST32rr $edi, $edi, implicit-def $eflags, debug-location !35
	JCC_1 %bb.4.if.then, 15, implicit $eflags

	bb.5.if.end:
	successors: %bb.6.if.then.4(4), %bb.7.if.end.6(124)
	liveins: $eax, $ecx, $edi, $edx, $esi, $r8d

	DBG_VALUE $edi, _, !9, !17, debug-location !18
	DBG_VALUE $esi, _, !10, !17, debug-location !19
	DBG_VALUE $edx, _, !11, !17, debug-location !21
	DBG_VALUE $ecx, _, !12, !17, debug-location !23
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	TEST32rr $esi, $esi, implicit-def $eflags, debug-location !39
	JCC_1 %bb.6.if.then.4, 15, implicit $eflags

	bb.7.if.end.6:
	successors: %bb.8.if.then.8(4), %bb.2.for.cond(124)
	liveins: $eax, $ecx, $edi, $edx, $esi, $r8d

	DBG_VALUE $edi, _, !9, !17, debug-location !18
	DBG_VALUE $esi, _, !10, !17, debug-location !19
	DBG_VALUE $edx, _, !11, !17, debug-location !21
	DBG_VALUE $ecx, _, !12, !17, debug-location !23
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	TEST32rr $edx, $edx, implicit-def $eflags, debug-location !45
	JCC_1 %bb.8.if.then.8, 15, implicit $eflags

	bb.2.for.cond:
	successors: %bb.3.for.body(124), %bb.9.for.end(4)
	liveins: $eax, $ecx, $edi, $edx, $esi, $r8d

	DBG_VALUE $edi, _, !9, !17, debug-location !18
	DBG_VALUE $esi, _, !10, !17, debug-location !19
	DBG_VALUE $edx, _, !11, !17, debug-location !21
	DBG_VALUE $ecx, _, !12, !17, debug-location !23
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	$eax = INC32r killed $eax, implicit-def dead $eflags, debug-location !44
	DBG_VALUE $eax, _, !13, !17, debug-location !25
	CMP32rr $eax, $r8d, implicit-def $eflags, debug-location !31
	JCC_1 %bb.3.for.body, 12, implicit $eflags
	JMP_1 %bb.9.for.end

	bb.4.if.then:
	liveins: $ecx, $edi

	DBG_VALUE $edi, _, !9, !17, debug-location !18
	DBG_VALUE $ecx, _, !12, !17, debug-location !23
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	$ecx = IMUL32rr killed $ecx, killed $edi, implicit-def dead $eflags, debug-location !36
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	$eax = MOV32rr killed $ecx, debug-location !50
	RETQ $eax, debug-location !50

	bb.6.if.then.4:
	liveins: $ecx, $esi

	DBG_VALUE $esi, _, !10, !17, debug-location !19
	DBG_VALUE $ecx, _, !12, !17, debug-location !23
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	$ecx = IMUL32rr killed $ecx, killed $esi, implicit-def dead $eflags, debug-location !40
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	$eax = MOV32rr killed $ecx, debug-location !50
	RETQ $eax, debug-location !50

	bb.8.if.then.8:
	successors: %bb.9.for.end(0)
	liveins: $ecx, $edx

	DBG_VALUE $edx, _, !11, !17, debug-location !21
	DBG_VALUE $ecx, _, !12, !17, debug-location !23
	DBG_VALUE 0, 0, !13, !17, debug-location !25
	$ecx = IMUL32rr killed $ecx, killed $edx, implicit-def dead $eflags, debug-location !46

	bb.9.for.end:
	liveins: $ecx

	DBG_VALUE 0, 0, !13, !17, debug-location !25
	$eax = MOV32rr killed $ecx, debug-location !50
	RETQ $eax, debug-location !50

	...