llvm/test/Transforms/HotColdSplit/issue-197982.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -S -passes=hotcoldsplit < %s | FileCheck %s

; Reproducer for https://github.com/llvm/llvm-project/issues/197982

@g = external global ptr

declare void @ext()

define void @ctor(ptr %this) cold !prof !14 {
; CHECK-LABEL: define void @ctor(
; CHECK-SAME: ptr [[THIS:%.*]]) #[[ATTR0:[0-9]+]] !prof [[PROF14:![0-9]+]] {
; CHECK-NEXT:    tail call void @ext()
; CHECK-NEXT:    store ptr null, ptr [[THIS]], align 16
; CHECK-NEXT:    [[P:%.*]] = getelementptr i8, ptr [[THIS]], i64 16
; CHECK-NEXT:    store ptr null, ptr [[P]], align 16
; CHECK-NEXT:    store i8 0, ptr [[THIS]], align 16
; CHECK-NEXT:    tail call void @ext()
; CHECK-NEXT:    store i32 0, ptr [[THIS]], align 16
; CHECK-NEXT:    ret void
;
  tail call void @ext()
  store ptr null, ptr %this, align 16
  %p = getelementptr i8, ptr %this, i64 16
  store ptr null, ptr %p, align 16
  store i8 0, ptr %this, align 16
  tail call void @ext()
  store i32 0, ptr %this, align 16
  ret void
}

define void @writeAsOperandInternal(ptr %WriterCtx, i1 %cond) {
; CHECK-LABEL: define void @writeAsOperandInternal(
; CHECK-SAME: ptr [[WRITERCTX:%.*]], i1 [[COND:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    br i1 [[COND]], label %[[CODEREPL:.*]], label %[[IF_END:.*]]
; CHECK:       [[CODEREPL]]:
; CHECK-NEXT:    [[TMP0:%.*]] = call ptr @writeAsOperandInternal.cold.1() #[[ATTR2:[0-9]+]]
; CHECK-NEXT:    br label %[[IF_END]]
; CHECK:       [[IF_END]]:
; CHECK-NEXT:    [[S_SROA_0_0:%.*]] = phi ptr [ [[TMP0]], %[[CODEREPL]] ], [ @g, %[[ENTRY]] ]
; CHECK-NEXT:    [[P:%.*]] = phi ptr [ [[TMP0]], %[[CODEREPL]] ], [ @g, %[[ENTRY]] ]
; CHECK-NEXT:    [[FP:%.*]] = load ptr, ptr [[WRITERCTX]], align 8
; CHECK-NEXT:    [[R:%.*]] = tail call i32 [[FP]](ptr [[P]], ptr @g)
; CHECK-NEXT:    store volatile i32 0, ptr [[S_SROA_0_0]], align 4
; CHECK-NEXT:    ret void
;
entry:
  br i1 %cond, label %if.then, label %if.end

if.then:
  tail call void @ctor(ptr @g)
  %call.i = load volatile ptr, ptr @g, align 8
  store volatile i32 0, ptr @g, align 4
  br label %if.end

if.end:
  %s.sroa.0.0 = phi ptr [ %call.i, %if.then ], [ @g, %entry ]
  %p = phi ptr [ %call.i, %if.then ], [ @g, %entry ]
  %fp = load ptr, ptr %WriterCtx, align 8
  %r = tail call i32 %fp(ptr %p, ptr @g)
  store volatile i32 0, ptr %s.sroa.0.0, align 4
  ret void
}

!llvm.module.flags = !{!0}

!0 = !{i32 1, !"ProfileSummary", !1}
!1 = !{!2, !3, !4, !5, !6, !7, !8, !9, !10, !11}
!2 = !{!"ProfileFormat", !"InstrProf"}
!3 = !{!"TotalCount", i64 436329363820}
!4 = !{!"MaxCount", i64 7373450795}
!5 = !{!"MaxInternalCount", i64 502022957}
!6 = !{!"MaxFunctionCount", i64 7373450795}
!7 = !{!"NumCounts", i64 3070596}
!8 = !{!"NumFunctions", i64 874091}
!9 = !{!"IsPartialProfile", i64 0}
!10 = !{!"PartialProfileRatio", double 0.000000e+00}
!11 = !{!"DetailedSummary", !12}
!12 = !{!13}
!13 = !{i32 999999, i64 24, i32 423785}
!14 = !{!"function_entry_count", i64 0}
;.
; CHECK: [[PROF14]] = !{!"function_entry_count", i64 0}
;.