llvm/test/DebugInfo/MIR/X86/merge-inline-loc2.mir - llvm-project - Git at Google

 # RUN: llc -mtriple=x86_64-pc-linux %s -run-pass=branch-folder -o - | FileCheck %s

 --- |
   ; ModuleID = 'case2.c'
   source_filename = "case2.c"
   target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
   target triple = "x86_64-unknown-linux-gnu"

   @q1 = dso_local local_unnamed_addr global i32 1, align 4, !dbg !0
   @q2 = dso_local local_unnamed_addr global i32 4, align 4, !dbg !5
   @q3 = dso_local local_unnamed_addr global i32 2, align 4, !dbg !8
   @g1 = dso_local local_unnamed_addr global i32 0, align 4, !dbg !10
   @g2 = dso_local local_unnamed_addr global i32 0, align 4, !dbg !12
   @g3 = dso_local local_unnamed_addr global i32 0, align 4, !dbg !14

   ; Function Attrs: nounwind uwtable
   define dso_local i32 @multiple_inl_multiple_loc() local_unnamed_addr #0 !dbg !23 {
   entry:
     %0 = load i32, ptr @q1, align 4, !dbg !27, !tbaa !28
     call void @llvm.dbg.value(metadata i32 %0, metadata !32, metadata !DIExpression()), !dbg !38
     call void @llvm.dbg.value(metadata i32 100, metadata !37, metadata !DIExpression()), !dbg !38
     %cmp.i = icmp sgt i32 %0, 3, !dbg !40
     br i1 %cmp.i, label %if.then.i, label %if.end.i, !dbg !42

   if.then.i:                                        ; preds = %entry
     tail call void @abort() #3, !dbg !43
     unreachable, !dbg !43

   if.end.i:                                         ; preds = %entry
     %cmp1.i = icmp slt i32 %0, 1, !dbg !44
     br i1 %cmp1.i, label %if.then2.i, label %inl2.exit, !dbg !46

   if.then2.i:                                       ; preds = %if.end.i
     tail call void @abort() #3, !dbg !47
     unreachable, !dbg !47

   inl2.exit:                                        ; preds = %if.end.i
     %mul.i = mul nuw nsw i32 %0, 152, !dbg !48
     %add.i = add nuw nsw i32 %mul.i, 100, !dbg !49
     store i32 %add.i, ptr @g1, align 4, !dbg !50, !tbaa !28
     %1 = load i32, ptr @q2, align 4, !dbg !51, !tbaa !28
     call void @llvm.dbg.value(metadata i32 %1, metadata !32, metadata !DIExpression()), !dbg !52
     call void @llvm.dbg.value(metadata i32 200, metadata !37, metadata !DIExpression()), !dbg !52
     %cmp.i3 = icmp sgt i32 %1, 3, !dbg !54
     br i1 %cmp.i3, label %if.then.i4, label %if.end.i6, !dbg !55

   if.then.i4:                                       ; preds = %inl2.exit
     tail call void @abort() #3, !dbg !56
     unreachable, !dbg !56

   if.end.i6:                                        ; preds = %inl2.exit
     %cmp1.i5 = icmp slt i32 %1, 1, !dbg !57
     br i1 %cmp1.i5, label %if.then2.i7, label %inl2.exit10, !dbg !58

   if.then2.i7:                                      ; preds = %if.end.i6
     tail call void @abort() #3, !dbg !59
     unreachable, !dbg !59

   inl2.exit10:                                      ; preds = %if.end.i6
     %mul.i8 = mul nuw nsw i32 %1, 152, !dbg !60
     %add.i9 = add nuw nsw i32 %mul.i8, 200, !dbg !61
     store i32 %add.i9, ptr @g2, align 4, !dbg !62, !tbaa !28
     %2 = load i32, ptr @q3, align 4, !dbg !63, !tbaa !28
     call void @llvm.dbg.value(metadata i32 %2, metadata !32, metadata !DIExpression()), !dbg !64
     call void @llvm.dbg.value(metadata i32 300, metadata !37, metadata !DIExpression()), !dbg !64
     %cmp.i11 = icmp sgt i32 %2, 3, !dbg !66
     br i1 %cmp.i11, label %if.then.i12, label %if.end.i14, !dbg !67

   if.then.i12:                                      ; preds = %inl2.exit10
     tail call void @abort() #3, !dbg !68
     unreachable, !dbg !68

   if.end.i14:                                       ; preds = %inl2.exit10
     %cmp1.i13 = icmp slt i32 %2, 1, !dbg !69
     br i1 %cmp1.i13, label %if.then2.i15, label %inl2.exit18, !dbg !70

   if.then2.i15:                                     ; preds = %if.end.i14
     tail call void @abort() #3, !dbg !71
     unreachable, !dbg !71

   inl2.exit18:                                      ; preds = %if.end.i14
     %mul.i16 = mul nuw nsw i32 %2, 152, !dbg !72
     %add.i17 = add nuw nsw i32 %mul.i16, 300, !dbg !73
     store i32 %add.i17, ptr @q3, align 4, !dbg !74, !tbaa !28
     ret i32 0, !dbg !75
   }

   ; Function Attrs: noreturn nounwind
   declare !dbg !76 void @abort() local_unnamed_addr #1

   ; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
   declare void @llvm.dbg.value(metadata, metadata, metadata) #2

   attributes #0 = { nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
   attributes #1 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
   attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
   attributes #3 = { noreturn nounwind }

   !llvm.dbg.cu = !{!2}
   !llvm.module.flags = !{!16, !17, !18, !19, !20, !21}
   !llvm.ident = !{!22}

   !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
   !1 = distinct !DIGlobalVariable(name: "q1", scope: !2, file: !3, line: 12, type: !7, isLocal: false, isDefinition: true)
   !2 = distinct !DICompileUnit(language: DW_LANG_C11, file: !3, producer: "clang version 16.0.0.prerel", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: None)
   !3 = !DIFile(filename: "case2.c", directory: "/", checksumkind: CSK_MD5, checksum: "5093c50294e57eaa7f9ed00bfd62075c")
   !4 = !{!0, !5, !8, !10, !12, !14}
   !5 = !DIGlobalVariableExpression(var: !6, expr: !DIExpression())
   !6 = distinct !DIGlobalVariable(name: "q2", scope: !2, file: !3, line: 12, type: !7, isLocal: false, isDefinition: true)
   !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
   !8 = !DIGlobalVariableExpression(var: !9, expr: !DIExpression())
   !9 = distinct !DIGlobalVariable(name: "q3", scope: !2, file: !3, line: 12, type: !7, isLocal: false, isDefinition: true)
   !10 = !DIGlobalVariableExpression(var: !11, expr: !DIExpression())
   !11 = distinct !DIGlobalVariable(name: "g1", scope: !2, file: !3, line: 13, type: !7, isLocal: false, isDefinition: true)
   !12 = !DIGlobalVariableExpression(var: !13, expr: !DIExpression())
   !13 = distinct !DIGlobalVariable(name: "g2", scope: !2, file: !3, line: 13, type: !7, isLocal: false, isDefinition: true)
   !14 = !DIGlobalVariableExpression(var: !15, expr: !DIExpression())
   !15 = distinct !DIGlobalVariable(name: "g3", scope: !2, file: !3, line: 13, type: !7, isLocal: false, isDefinition: true)
   !16 = !{i32 7, !"Dwarf Version", i32 5}
   !17 = !{i32 2, !"Debug Info Version", i32 3}
   !18 = !{i32 1, !"wchar_size", i32 4}
   !19 = !{i32 8, !"PIC Level", i32 2}
   !20 = !{i32 7, !"PIE Level", i32 2}
   !21 = !{i32 7, !"uwtable", i32 2}
   !22 = !{!"clang version 16.0.0.prerel"}
   !23 = distinct !DISubprogram(name: "multiple_inl_multiple_loc", scope: !3, file: !3, line: 15, type: !24, scopeLine: 16, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !26)
   !24 = !DISubroutineType(types: !25)
   !25 = !{!7}
   !26 = !{}
   !27 = !DILocation(line: 17, column: 13, scope: !23)
   !28 = !{!29, !29, i64 0}
   !29 = !{!"int", !30, i64 0}
   !30 = !{!"omnipotent char", !31, i64 0}
   !31 = !{!"Simple C/C++ TBAA"}
   !32 = !DILocalVariable(name: "q", arg: 1, scope: !33, file: !3, line: 3, type: !7)
   !33 = distinct !DISubprogram(name: "inl2", scope: !3, file: !3, line: 3, type: !34, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !36)
   !34 = !DISubroutineType(types: !35)
   !35 = !{!7, !7, !7}
   !36 = !{!32, !37}
   !37 = !DILocalVariable(name: "n", arg: 2, scope: !33, file: !3, line: 3, type: !7)
   !38 = !DILocation(line: 0, scope: !33, inlinedAt: !39)
   !39 = distinct !DILocation(line: 17, column: 8, scope: !23)
   !40 = !DILocation(line: 5, column: 9, scope: !41, inlinedAt: !39)
   !41 = distinct !DILexicalBlock(scope: !33, file: !3, line: 5, column: 7)
   !42 = !DILocation(line: 5, column: 7, scope: !33, inlinedAt: !39)
   !43 = !DILocation(line: 6, column: 5, scope: !41, inlinedAt: !39)
   !44 = !DILocation(line: 7, column: 9, scope: !45, inlinedAt: !39)
   !45 = distinct !DILexicalBlock(scope: !33, file: !3, line: 7, column: 7)
   !46 = !DILocation(line: 7, column: 7, scope: !33, inlinedAt: !39)
   !47 = !DILocation(line: 8, column: 5, scope: !45, inlinedAt: !39)
   !48 = !DILocation(line: 9, column: 12, scope: !33, inlinedAt: !39)
   !49 = !DILocation(line: 9, column: 18, scope: !33, inlinedAt: !39)
   !50 = !DILocation(line: 17, column: 6, scope: !23)
   !51 = !DILocation(line: 18, column: 13, scope: !23)
   !52 = !DILocation(line: 0, scope: !33, inlinedAt: !53)
   !53 = distinct !DILocation(line: 18, column: 8, scope: !23)
   !54 = !DILocation(line: 5, column: 9, scope: !41, inlinedAt: !53)
   !55 = !DILocation(line: 5, column: 7, scope: !33, inlinedAt: !53)
   !56 = !DILocation(line: 6, column: 5, scope: !41, inlinedAt: !53)
   !57 = !DILocation(line: 7, column: 9, scope: !45, inlinedAt: !53)
   !58 = !DILocation(line: 7, column: 7, scope: !33, inlinedAt: !53)
   !59 = !DILocation(line: 8, column: 5, scope: !45, inlinedAt: !53)
   !60 = !DILocation(line: 9, column: 12, scope: !33, inlinedAt: !53)
   !61 = !DILocation(line: 9, column: 18, scope: !33, inlinedAt: !53)
   !62 = !DILocation(line: 18, column: 6, scope: !23)
   !63 = !DILocation(line: 19, column: 13, scope: !23)
   !64 = !DILocation(line: 0, scope: !33, inlinedAt: !65)
   !65 = distinct !DILocation(line: 19, column: 8, scope: !23)
   !66 = !DILocation(line: 5, column: 9, scope: !41, inlinedAt: !65)
   !67 = !DILocation(line: 5, column: 7, scope: !33, inlinedAt: !65)
   !68 = !DILocation(line: 6, column: 5, scope: !41, inlinedAt: !65)
   !69 = !DILocation(line: 7, column: 9, scope: !45, inlinedAt: !65)
   !70 = !DILocation(line: 7, column: 7, scope: !33, inlinedAt: !65)
   !71 = !DILocation(line: 8, column: 5, scope: !45, inlinedAt: !65)
   !72 = !DILocation(line: 9, column: 12, scope: !33, inlinedAt: !65)
   !73 = !DILocation(line: 9, column: 18, scope: !33, inlinedAt: !65)
   !74 = !DILocation(line: 19, column: 6, scope: !23)
   !75 = !DILocation(line: 20, column: 3, scope: !23)
   !76 = !DISubprogram(name: "abort", scope: !77, file: !77, line: 514, type: !78, flags: DIFlagPrototyped | DIFlagNoReturn, spFlags: DISPFlagOptimized, retainedNodes: !26)
   !77 = !DIFile(filename: "/usr/include/stdlib.h", directory: "", checksumkind: CSK_MD5, checksum: "f7a1412d75d9e3df251dfc21b02d59ef")
   !78 = !DISubroutineType(types: !79)
   !79 = !{null}

 ...
 ---
 name:            multiple_inl_multiple_loc
 alignment:       16
 tracksRegLiveness: true
 tracksDebugUserValues: true
 frameInfo:
   stackSize:       8
   offsetAdjustment: -8
   maxAlignment:    1
   adjustsStack:    true
   hasCalls:        true
   maxCallFrameSize: 0
 machineFunctionInfo: {}
 body:             |
   bb.0.entry:
     successors: %bb.1(0x00000800), %bb.2(0x7ffff800)

     frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp
     frame-setup CFI_INSTRUCTION def_cfa_offset 16
     renamable $eax = MOV32rm $rip, 1, $noreg, @q1, $noreg, debug-instr-number 1, debug-location !27 :: (dereferenceable load (s32) from @q1, !tbaa !28)
     DBG_INSTR_REF !32, !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0), debug-location !38
     DBG_VALUE 100, $noreg, !37, !DIExpression(), debug-location !38
     CMP32ri8 renamable $eax, 4, implicit-def $eflags, debug-location !40
     JCC_1 %bb.2, 12, implicit killed $eflags, debug-location !42
     JMP_1 %bb.1, debug-location !42

   bb.1.if.then.i:
     successors:

     CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !43

   bb.2.if.end.i:
     successors: %bb.3(0x00000800), %bb.4(0x7ffff800)
     liveins: $eax

     TEST32rr renamable $eax, renamable $eax, implicit-def $eflags, debug-location !44
     JCC_1 %bb.4, 15, implicit killed $eflags, debug-location !46
     JMP_1 %bb.3, debug-location !46

   bb.3.if.then2.i:
     successors:

     CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !47

   bb.4.inl2.exit:
     successors: %bb.5(0x00000800), %bb.6(0x7ffff800)
     liveins: $eax

     renamable $eax = nuw nsw IMUL32rri killed renamable $eax, 152, implicit-def dead $eflags, debug-location !48
     renamable $eax = nuw nsw ADD32ri8 killed renamable $eax, 100, implicit-def dead $eflags, debug-location !49
     MOV32mr $rip, 1, $noreg, @g1, $noreg, killed renamable $eax, debug-location !50 :: (store (s32) into @g1, !tbaa !28)
     renamable $eax = MOV32rm $rip, 1, $noreg, @q2, $noreg, debug-instr-number 2, debug-location !51 :: (dereferenceable load (s32) from @q2, !tbaa !28)
     DBG_INSTR_REF !32, !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(2, 0), debug-location !52
     DBG_VALUE 200, $noreg, !37, !DIExpression(), debug-location !52
     CMP32ri8 renamable $eax, 4, implicit-def $eflags, debug-location !54
     JCC_1 %bb.6, 12, implicit killed $eflags, debug-location !55
     JMP_1 %bb.5, debug-location !55

   bb.5.if.then.i4:
     successors:

     CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !56

   bb.6.if.end.i6:
     successors: %bb.7(0x00000800), %bb.8(0x7ffff800)
     liveins: $eax

     TEST32rr renamable $eax, renamable $eax, implicit-def $eflags, debug-location !57
     JCC_1 %bb.8, 15, implicit killed $eflags, debug-location !58
     JMP_1 %bb.7, debug-location !58

   bb.7.if.then2.i7:
     successors:

     CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !59

   bb.8.inl2.exit10:
     successors: %bb.9(0x00000800), %bb.10(0x7ffff800)
     liveins: $eax

     renamable $eax = nuw nsw IMUL32rri killed renamable $eax, 152, implicit-def dead $eflags, debug-location !60
     renamable $eax = nuw nsw ADD32ri killed renamable $eax, 200, implicit-def dead $eflags, debug-location !61
     MOV32mr $rip, 1, $noreg, @g2, $noreg, killed renamable $eax, debug-location !62 :: (store (s32) into @g2, !tbaa !28)
     renamable $eax = MOV32rm $rip, 1, $noreg, @q3, $noreg, debug-instr-number 3, debug-location !63 :: (dereferenceable load (s32) from @q3, !tbaa !28)
     DBG_INSTR_REF !32, !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(3, 0), debug-location !64
     DBG_VALUE 300, $noreg, !37, !DIExpression(), debug-location !64
     CMP32ri8 renamable $eax, 4, implicit-def $eflags, debug-location !66
     JCC_1 %bb.10, 12, implicit killed $eflags, debug-location !67
     JMP_1 %bb.9, debug-location !67

   bb.9.if.then.i12:
     successors:

     CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !68

   bb.10.if.end.i14:
     successors: %bb.11(0x00000800), %bb.12(0x7ffff800)
     liveins: $eax

     TEST32rr renamable $eax, renamable $eax, implicit-def $eflags, debug-location !69
     JCC_1 %bb.12, 15, implicit killed $eflags, debug-location !70
     JMP_1 %bb.11, debug-location !70

   bb.11.if.then2.i15:
     successors:

     CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !71

   bb.12.inl2.exit18:
     liveins: $eax

     renamable $eax = nuw nsw IMUL32rri killed renamable $eax, 152, implicit-def dead $eflags, debug-location !72
     renamable $eax = nuw nsw ADD32ri killed renamable $eax, 300, implicit-def dead $eflags, debug-location !73
     MOV32mr $rip, 1, $noreg, @q3, $noreg, killed renamable $eax, debug-location !74 :: (store (s32) into @q3, !tbaa !28)
     $eax = MOV32r0 implicit-def dead $eflags, debug-location !75
     $rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !75
     frame-destroy CFI_INSTRUCTION def_cfa_offset 8, debug-location !75
     RET 0, $eax, debug-location !75

 ...

 # In this case we have a abort call block folded from two locations in
 # three inlined instances of inl1():
 #
 #  1 | #include <stdlib.h>
 #  2 |
 #  3 | static inline int inl2(int q, int n)
 #  4 | {
 #  5 |   if (q > 3)
 #  6 |     abort();
 #  7 |   if (q < 1)
 #  8 |     abort();
 #  9 |   return q * 152 + n;
 # 10 | }
 # 11 |
 # 12 | int q1 = 1, q2 = 4, q3 = 2;
 # 13 | int g1, g2, g3;
 # 14 |
 # 15 | int multiple_inl_multiple_loc()
 # 16 | {
 # 17 |   g1 = inl2(q1, 100);
 # 18 |   g2 = inl2(q2, 200);
 # 19 |   q3 = inl2(q3, 300);
 # 20 |   return 0;
 # 21 | }
 #
 # We should produce a merged location describing that the abort call is located
 # at line 0 in inl2() inlined at line 0 in multiple_inl_multiple_loc().

 # CHECK-DAG: [[INLINER:![0-9]+]] = distinct !DISubprogram(name: "multiple_inl_multiple_loc"
 # CHECK-DAG: [[INLINEE:![0-9]+]] = distinct !DISubprogram(name: "inl2"

 # CHECK-NOT: CALL64pcrel32
 # CHECK: CALL64pcrel32 target-flags(x86-plt) @abort, {{.*}} debug-location !DILocation(line: 0, scope: [[INLINEE]], inlinedAt: !DILocation(line: 0, scope: [[INLINER]]))
 # CHECK-NOT: CALL64pcrel32
	# RUN: llc -mtriple=x86_64-pc-linux %s -run-pass=branch-folder -o - \| FileCheck %s

	--- \|
	; ModuleID = 'case2.c'
	source_filename = "case2.c"
	target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
	target triple = "x86_64-unknown-linux-gnu"

	@q1 = dso_local local_unnamed_addr global i32 1, align 4, !dbg !0
	@q2 = dso_local local_unnamed_addr global i32 4, align 4, !dbg !5
	@q3 = dso_local local_unnamed_addr global i32 2, align 4, !dbg !8
	@g1 = dso_local local_unnamed_addr global i32 0, align 4, !dbg !10
	@g2 = dso_local local_unnamed_addr global i32 0, align 4, !dbg !12
	@g3 = dso_local local_unnamed_addr global i32 0, align 4, !dbg !14

	; Function Attrs: nounwind uwtable
	define dso_local i32 @multiple_inl_multiple_loc() local_unnamed_addr #0 !dbg !23 {
	entry:
	%0 = load i32, ptr @q1, align 4, !dbg !27, !tbaa !28
	call void @llvm.dbg.value(metadata i32 %0, metadata !32, metadata !DIExpression()), !dbg !38
	call void @llvm.dbg.value(metadata i32 100, metadata !37, metadata !DIExpression()), !dbg !38
	%cmp.i = icmp sgt i32 %0, 3, !dbg !40
	br i1 %cmp.i, label %if.then.i, label %if.end.i, !dbg !42

	if.then.i: ; preds = %entry
	tail call void @abort() #3, !dbg !43
	unreachable, !dbg !43

	if.end.i: ; preds = %entry
	%cmp1.i = icmp slt i32 %0, 1, !dbg !44
	br i1 %cmp1.i, label %if.then2.i, label %inl2.exit, !dbg !46

	if.then2.i: ; preds = %if.end.i
	tail call void @abort() #3, !dbg !47
	unreachable, !dbg !47

	inl2.exit: ; preds = %if.end.i
	%mul.i = mul nuw nsw i32 %0, 152, !dbg !48
	%add.i = add nuw nsw i32 %mul.i, 100, !dbg !49
	store i32 %add.i, ptr @g1, align 4, !dbg !50, !tbaa !28
	%1 = load i32, ptr @q2, align 4, !dbg !51, !tbaa !28
	call void @llvm.dbg.value(metadata i32 %1, metadata !32, metadata !DIExpression()), !dbg !52
	call void @llvm.dbg.value(metadata i32 200, metadata !37, metadata !DIExpression()), !dbg !52
	%cmp.i3 = icmp sgt i32 %1, 3, !dbg !54
	br i1 %cmp.i3, label %if.then.i4, label %if.end.i6, !dbg !55

	if.then.i4: ; preds = %inl2.exit
	tail call void @abort() #3, !dbg !56
	unreachable, !dbg !56

	if.end.i6: ; preds = %inl2.exit
	%cmp1.i5 = icmp slt i32 %1, 1, !dbg !57
	br i1 %cmp1.i5, label %if.then2.i7, label %inl2.exit10, !dbg !58

	if.then2.i7: ; preds = %if.end.i6
	tail call void @abort() #3, !dbg !59
	unreachable, !dbg !59

	inl2.exit10: ; preds = %if.end.i6
	%mul.i8 = mul nuw nsw i32 %1, 152, !dbg !60
	%add.i9 = add nuw nsw i32 %mul.i8, 200, !dbg !61
	store i32 %add.i9, ptr @g2, align 4, !dbg !62, !tbaa !28
	%2 = load i32, ptr @q3, align 4, !dbg !63, !tbaa !28
	call void @llvm.dbg.value(metadata i32 %2, metadata !32, metadata !DIExpression()), !dbg !64
	call void @llvm.dbg.value(metadata i32 300, metadata !37, metadata !DIExpression()), !dbg !64
	%cmp.i11 = icmp sgt i32 %2, 3, !dbg !66
	br i1 %cmp.i11, label %if.then.i12, label %if.end.i14, !dbg !67

	if.then.i12: ; preds = %inl2.exit10
	tail call void @abort() #3, !dbg !68
	unreachable, !dbg !68

	if.end.i14: ; preds = %inl2.exit10
	%cmp1.i13 = icmp slt i32 %2, 1, !dbg !69
	br i1 %cmp1.i13, label %if.then2.i15, label %inl2.exit18, !dbg !70

	if.then2.i15: ; preds = %if.end.i14
	tail call void @abort() #3, !dbg !71
	unreachable, !dbg !71

	inl2.exit18: ; preds = %if.end.i14
	%mul.i16 = mul nuw nsw i32 %2, 152, !dbg !72
	%add.i17 = add nuw nsw i32 %mul.i16, 300, !dbg !73
	store i32 %add.i17, ptr @q3, align 4, !dbg !74, !tbaa !28
	ret i32 0, !dbg !75
	}

	; Function Attrs: noreturn nounwind
	declare !dbg !76 void @abort() local_unnamed_addr #1

	; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
	declare void @llvm.dbg.value(metadata, metadata, metadata) #2

	attributes #0 = { nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
	attributes #1 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
	attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
	attributes #3 = { noreturn nounwind }

	!llvm.dbg.cu = !{!2}
	!llvm.module.flags = !{!16, !17, !18, !19, !20, !21}
	!llvm.ident = !{!22}

	!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
	!1 = distinct !DIGlobalVariable(name: "q1", scope: !2, file: !3, line: 12, type: !7, isLocal: false, isDefinition: true)
	!2 = distinct !DICompileUnit(language: DW_LANG_C11, file: !3, producer: "clang version 16.0.0.prerel", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: None)
	!3 = !DIFile(filename: "case2.c", directory: "/", checksumkind: CSK_MD5, checksum: "5093c50294e57eaa7f9ed00bfd62075c")
	!4 = !{!0, !5, !8, !10, !12, !14}
	!5 = !DIGlobalVariableExpression(var: !6, expr: !DIExpression())
	!6 = distinct !DIGlobalVariable(name: "q2", scope: !2, file: !3, line: 12, type: !7, isLocal: false, isDefinition: true)
	!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
	!8 = !DIGlobalVariableExpression(var: !9, expr: !DIExpression())
	!9 = distinct !DIGlobalVariable(name: "q3", scope: !2, file: !3, line: 12, type: !7, isLocal: false, isDefinition: true)
	!10 = !DIGlobalVariableExpression(var: !11, expr: !DIExpression())
	!11 = distinct !DIGlobalVariable(name: "g1", scope: !2, file: !3, line: 13, type: !7, isLocal: false, isDefinition: true)
	!12 = !DIGlobalVariableExpression(var: !13, expr: !DIExpression())
	!13 = distinct !DIGlobalVariable(name: "g2", scope: !2, file: !3, line: 13, type: !7, isLocal: false, isDefinition: true)
	!14 = !DIGlobalVariableExpression(var: !15, expr: !DIExpression())
	!15 = distinct !DIGlobalVariable(name: "g3", scope: !2, file: !3, line: 13, type: !7, isLocal: false, isDefinition: true)
	!16 = !{i32 7, !"Dwarf Version", i32 5}
	!17 = !{i32 2, !"Debug Info Version", i32 3}
	!18 = !{i32 1, !"wchar_size", i32 4}
	!19 = !{i32 8, !"PIC Level", i32 2}
	!20 = !{i32 7, !"PIE Level", i32 2}
	!21 = !{i32 7, !"uwtable", i32 2}
	!22 = !{!"clang version 16.0.0.prerel"}
	!23 = distinct !DISubprogram(name: "multiple_inl_multiple_loc", scope: !3, file: !3, line: 15, type: !24, scopeLine: 16, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition \| DISPFlagOptimized, unit: !2, retainedNodes: !26)
	!24 = !DISubroutineType(types: !25)
	!25 = !{!7}
	!26 = !{}
	!27 = !DILocation(line: 17, column: 13, scope: !23)
	!28 = !{!29, !29, i64 0}
	!29 = !{!"int", !30, i64 0}
	!30 = !{!"omnipotent char", !31, i64 0}
	!31 = !{!"Simple C/C++ TBAA"}
	!32 = !DILocalVariable(name: "q", arg: 1, scope: !33, file: !3, line: 3, type: !7)
	!33 = distinct !DISubprogram(name: "inl2", scope: !3, file: !3, line: 3, type: !34, scopeLine: 4, flags: DIFlagPrototyped \| DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit \| DISPFlagDefinition \| DISPFlagOptimized, unit: !2, retainedNodes: !36)
	!34 = !DISubroutineType(types: !35)
	!35 = !{!7, !7, !7}
	!36 = !{!32, !37}
	!37 = !DILocalVariable(name: "n", arg: 2, scope: !33, file: !3, line: 3, type: !7)
	!38 = !DILocation(line: 0, scope: !33, inlinedAt: !39)
	!39 = distinct !DILocation(line: 17, column: 8, scope: !23)
	!40 = !DILocation(line: 5, column: 9, scope: !41, inlinedAt: !39)
	!41 = distinct !DILexicalBlock(scope: !33, file: !3, line: 5, column: 7)
	!42 = !DILocation(line: 5, column: 7, scope: !33, inlinedAt: !39)
	!43 = !DILocation(line: 6, column: 5, scope: !41, inlinedAt: !39)
	!44 = !DILocation(line: 7, column: 9, scope: !45, inlinedAt: !39)
	!45 = distinct !DILexicalBlock(scope: !33, file: !3, line: 7, column: 7)
	!46 = !DILocation(line: 7, column: 7, scope: !33, inlinedAt: !39)
	!47 = !DILocation(line: 8, column: 5, scope: !45, inlinedAt: !39)
	!48 = !DILocation(line: 9, column: 12, scope: !33, inlinedAt: !39)
	!49 = !DILocation(line: 9, column: 18, scope: !33, inlinedAt: !39)
	!50 = !DILocation(line: 17, column: 6, scope: !23)
	!51 = !DILocation(line: 18, column: 13, scope: !23)
	!52 = !DILocation(line: 0, scope: !33, inlinedAt: !53)
	!53 = distinct !DILocation(line: 18, column: 8, scope: !23)
	!54 = !DILocation(line: 5, column: 9, scope: !41, inlinedAt: !53)
	!55 = !DILocation(line: 5, column: 7, scope: !33, inlinedAt: !53)
	!56 = !DILocation(line: 6, column: 5, scope: !41, inlinedAt: !53)
	!57 = !DILocation(line: 7, column: 9, scope: !45, inlinedAt: !53)
	!58 = !DILocation(line: 7, column: 7, scope: !33, inlinedAt: !53)
	!59 = !DILocation(line: 8, column: 5, scope: !45, inlinedAt: !53)
	!60 = !DILocation(line: 9, column: 12, scope: !33, inlinedAt: !53)
	!61 = !DILocation(line: 9, column: 18, scope: !33, inlinedAt: !53)
	!62 = !DILocation(line: 18, column: 6, scope: !23)
	!63 = !DILocation(line: 19, column: 13, scope: !23)
	!64 = !DILocation(line: 0, scope: !33, inlinedAt: !65)
	!65 = distinct !DILocation(line: 19, column: 8, scope: !23)
	!66 = !DILocation(line: 5, column: 9, scope: !41, inlinedAt: !65)
	!67 = !DILocation(line: 5, column: 7, scope: !33, inlinedAt: !65)
	!68 = !DILocation(line: 6, column: 5, scope: !41, inlinedAt: !65)
	!69 = !DILocation(line: 7, column: 9, scope: !45, inlinedAt: !65)
	!70 = !DILocation(line: 7, column: 7, scope: !33, inlinedAt: !65)
	!71 = !DILocation(line: 8, column: 5, scope: !45, inlinedAt: !65)
	!72 = !DILocation(line: 9, column: 12, scope: !33, inlinedAt: !65)
	!73 = !DILocation(line: 9, column: 18, scope: !33, inlinedAt: !65)
	!74 = !DILocation(line: 19, column: 6, scope: !23)
	!75 = !DILocation(line: 20, column: 3, scope: !23)
	!76 = !DISubprogram(name: "abort", scope: !77, file: !77, line: 514, type: !78, flags: DIFlagPrototyped \| DIFlagNoReturn, spFlags: DISPFlagOptimized, retainedNodes: !26)
	!77 = !DIFile(filename: "/usr/include/stdlib.h", directory: "", checksumkind: CSK_MD5, checksum: "f7a1412d75d9e3df251dfc21b02d59ef")
	!78 = !DISubroutineType(types: !79)
	!79 = !{null}

	...
	---
	name: multiple_inl_multiple_loc
	alignment: 16
	tracksRegLiveness: true
	tracksDebugUserValues: true
	frameInfo:
	stackSize: 8
	offsetAdjustment: -8
	maxAlignment: 1
	adjustsStack: true
	hasCalls: true
	maxCallFrameSize: 0
	machineFunctionInfo: {}
	body: \|
	bb.0.entry:
	successors: %bb.1(0x00000800), %bb.2(0x7ffff800)

	frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp
	frame-setup CFI_INSTRUCTION def_cfa_offset 16
	renamable $eax = MOV32rm $rip, 1, $noreg, @q1, $noreg, debug-instr-number 1, debug-location !27 :: (dereferenceable load (s32) from @q1, !tbaa !28)
	DBG_INSTR_REF !32, !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0), debug-location !38
	DBG_VALUE 100, $noreg, !37, !DIExpression(), debug-location !38
	CMP32ri8 renamable $eax, 4, implicit-def $eflags, debug-location !40
	JCC_1 %bb.2, 12, implicit killed $eflags, debug-location !42
	JMP_1 %bb.1, debug-location !42

	bb.1.if.then.i:
	successors:

	CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !43

	bb.2.if.end.i:
	successors: %bb.3(0x00000800), %bb.4(0x7ffff800)
	liveins: $eax

	TEST32rr renamable $eax, renamable $eax, implicit-def $eflags, debug-location !44
	JCC_1 %bb.4, 15, implicit killed $eflags, debug-location !46
	JMP_1 %bb.3, debug-location !46

	bb.3.if.then2.i:
	successors:

	CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !47

	bb.4.inl2.exit:
	successors: %bb.5(0x00000800), %bb.6(0x7ffff800)
	liveins: $eax

	renamable $eax = nuw nsw IMUL32rri killed renamable $eax, 152, implicit-def dead $eflags, debug-location !48
	renamable $eax = nuw nsw ADD32ri8 killed renamable $eax, 100, implicit-def dead $eflags, debug-location !49
	MOV32mr $rip, 1, $noreg, @g1, $noreg, killed renamable $eax, debug-location !50 :: (store (s32) into @g1, !tbaa !28)
	renamable $eax = MOV32rm $rip, 1, $noreg, @q2, $noreg, debug-instr-number 2, debug-location !51 :: (dereferenceable load (s32) from @q2, !tbaa !28)
	DBG_INSTR_REF !32, !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(2, 0), debug-location !52
	DBG_VALUE 200, $noreg, !37, !DIExpression(), debug-location !52
	CMP32ri8 renamable $eax, 4, implicit-def $eflags, debug-location !54
	JCC_1 %bb.6, 12, implicit killed $eflags, debug-location !55
	JMP_1 %bb.5, debug-location !55

	bb.5.if.then.i4:
	successors:

	CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !56

	bb.6.if.end.i6:
	successors: %bb.7(0x00000800), %bb.8(0x7ffff800)
	liveins: $eax

	TEST32rr renamable $eax, renamable $eax, implicit-def $eflags, debug-location !57
	JCC_1 %bb.8, 15, implicit killed $eflags, debug-location !58
	JMP_1 %bb.7, debug-location !58

	bb.7.if.then2.i7:
	successors:

	CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !59

	bb.8.inl2.exit10:
	successors: %bb.9(0x00000800), %bb.10(0x7ffff800)
	liveins: $eax

	renamable $eax = nuw nsw IMUL32rri killed renamable $eax, 152, implicit-def dead $eflags, debug-location !60
	renamable $eax = nuw nsw ADD32ri killed renamable $eax, 200, implicit-def dead $eflags, debug-location !61
	MOV32mr $rip, 1, $noreg, @g2, $noreg, killed renamable $eax, debug-location !62 :: (store (s32) into @g2, !tbaa !28)
	renamable $eax = MOV32rm $rip, 1, $noreg, @q3, $noreg, debug-instr-number 3, debug-location !63 :: (dereferenceable load (s32) from @q3, !tbaa !28)
	DBG_INSTR_REF !32, !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(3, 0), debug-location !64
	DBG_VALUE 300, $noreg, !37, !DIExpression(), debug-location !64
	CMP32ri8 renamable $eax, 4, implicit-def $eflags, debug-location !66
	JCC_1 %bb.10, 12, implicit killed $eflags, debug-location !67
	JMP_1 %bb.9, debug-location !67

	bb.9.if.then.i12:
	successors:

	CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !68

	bb.10.if.end.i14:
	successors: %bb.11(0x00000800), %bb.12(0x7ffff800)
	liveins: $eax

	TEST32rr renamable $eax, renamable $eax, implicit-def $eflags, debug-location !69
	JCC_1 %bb.12, 15, implicit killed $eflags, debug-location !70
	JMP_1 %bb.11, debug-location !70

	bb.11.if.then2.i15:
	successors:

	CALL64pcrel32 target-flags(x86-plt) @abort, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, debug-location !71

	bb.12.inl2.exit18:
	liveins: $eax

	renamable $eax = nuw nsw IMUL32rri killed renamable $eax, 152, implicit-def dead $eflags, debug-location !72
	renamable $eax = nuw nsw ADD32ri killed renamable $eax, 300, implicit-def dead $eflags, debug-location !73
	MOV32mr $rip, 1, $noreg, @q3, $noreg, killed renamable $eax, debug-location !74 :: (store (s32) into @q3, !tbaa !28)
	$eax = MOV32r0 implicit-def dead $eflags, debug-location !75
	$rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !75
	frame-destroy CFI_INSTRUCTION def_cfa_offset 8, debug-location !75
	RET 0, $eax, debug-location !75

	...

	# In this case we have a abort call block folded from two locations in
	# three inlined instances of inl1():
	#
	# 1 \| #include <stdlib.h>
	# 2 \|
	# 3 \| static inline int inl2(int q, int n)
	# 4 \| {
	# 5 \| if (q > 3)
	# 6 \| abort();
	# 7 \| if (q < 1)
	# 8 \| abort();
	# 9 \| return q * 152 + n;
	# 10 \| }
	# 11 \|
	# 12 \| int q1 = 1, q2 = 4, q3 = 2;
	# 13 \| int g1, g2, g3;
	# 14 \|
	# 15 \| int multiple_inl_multiple_loc()
	# 16 \| {
	# 17 \| g1 = inl2(q1, 100);
	# 18 \| g2 = inl2(q2, 200);
	# 19 \| q3 = inl2(q3, 300);
	# 20 \| return 0;
	# 21 \| }
	#
	# We should produce a merged location describing that the abort call is located
	# at line 0 in inl2() inlined at line 0 in multiple_inl_multiple_loc().

	# CHECK-DAG: [[INLINER:![0-9]+]] = distinct !DISubprogram(name: "multiple_inl_multiple_loc"
	# CHECK-DAG: [[INLINEE:![0-9]+]] = distinct !DISubprogram(name: "inl2"

	# CHECK-NOT: CALL64pcrel32
	# CHECK: CALL64pcrel32 target-flags(x86-plt) @abort, {{.*}} debug-location !DILocation(line: 0, scope: [[INLINEE]], inlinedAt: !DILocation(line: 0, scope: [[INLINER]]))
	# CHECK-NOT: CALL64pcrel32