test/Transforms/HotColdSplit/sink-multiple-bitcasts-of-allocas-pr42451.ll

; RUN: opt -hotcoldsplit -hotcoldsplit-threshold=-1 -S < %s | FileCheck %s

target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.14.0"

@c = common global i32 0, align 4
@h = common global i32 0, align 4

declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1

declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1

declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg) #1

declare i32* @m()

; CHECK-LABEL: define void @main()
; CHECK-NEXT:   %.sroa.4.i = alloca [20 x i8], align 2
; CHECK-NEXT:   %.sroa.5.i = alloca [6 x i8], align 8
; CHECK-NEXT:   %1 = bitcast [6 x i8]* %.sroa.5.i to i8*

define void @main() #0 {
  %.sroa.4.i = alloca [20 x i8], align 2
  %.sroa.5.i = alloca [6 x i8], align 8
  %1 = bitcast [6 x i8]* %.sroa.5.i to i8*
  %2 = load i32, i32* @h, align 4, !tbaa !4
  %3 = icmp ne i32 %2, 0
  br i1 %3, label %12, label %4

4:                                                ; preds = %0
  %5 = call i32* @m() #3
  %.sroa.4.0..sroa_idx21.i = getelementptr inbounds [20 x i8], [20 x i8]* %.sroa.4.i, i64 0, i64 0
  call void @llvm.lifetime.start.p0i8(i64 20, i8* %.sroa.4.0..sroa_idx21.i) #3
  %.sroa.5.0..sroa_idx16.i = getelementptr inbounds [6 x i8], [6 x i8]* %.sroa.5.i, i64 0, i64 0
  call void @llvm.lifetime.start.p0i8(i64 6, i8* %.sroa.5.0..sroa_idx16.i) #3
  call void @llvm.memset.p0i8.i64(i8* align 2 %.sroa.4.0..sroa_idx21.i, i8 0, i64 20, i1 false) #3
  call void @llvm.memset.p0i8.i64(i8* align 8 %.sroa.5.0..sroa_idx16.i, i8 0, i64 6, i1 false) #3
  %6 = load i32, i32* @c, align 4, !tbaa !4
  %7 = trunc i32 %6 to i16
  call void @llvm.lifetime.end.p0i8(i64 20, i8* %.sroa.4.0..sroa_idx21.i) #3
  call void @llvm.lifetime.end.p0i8(i64 6, i8* %.sroa.5.0..sroa_idx16.i) #3
  call void @llvm.lifetime.start.p0i8(i64 6, i8* %1) #3
  call void @llvm.memset.p0i8.i64(i8* align 1 %1, i8 3, i64 6, i1 false)
  br label %8

8:                                                ; preds = %8, %4
  %.0.i = phi i32 [ 0, %4 ], [ %10, %8 ]
  %9 = sext i32 %.0.i to i64
  %10 = add nsw i32 %.0.i, 1
  %11 = icmp slt i32 %10, 6
  br i1 %11, label %8, label %l.exit

l.exit:                                           ; preds = %8
  call void @llvm.lifetime.end.p0i8(i64 6, i8* %1) #3
  br label %12

12:                                               ; preds = %l.exit, %0
  %13 = phi i1 [ true, %0 ], [ true, %l.exit ]
  ret void
}

attributes #0 = { cold }

!llvm.module.flags = !{!0, !1, !2}
!llvm.ident = !{!3}

!0 = !{i32 2, !"SDK Version", [2 x i32] [i32 10, i32 14]}
!1 = !{i32 1, !"wchar_size", i32 4}
!2 = !{i32 7, !"PIC Level", i32 2}
!3 = !{!"Apple clang version 11.0.0 (clang-1100.0.20.17)"}
!4 = !{!5, !5, i64 0}
!5 = !{!"int", !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}