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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes='bdce,sroa<preserve-cfg>,bdce' -S | FileCheck %s --check-prefixes=CHECK,CHECK-PRESERVE-CFG3; RUN: opt < %s -passes='bdce,sroa<modify-cfg>,bdce' -S | FileCheck %s --check-prefixes=CHECK,CHECK-MODIFY-CFG4 5; SROA fails to rewrite allocs but does rewrite some phis and delete6; dead instructions. Ensure that this invalidates analyses required7; for other passes.8 9target datalayout = "e-m:e-i64:64-n32:64"10target triple = "powerpc64le-grtev4-linux-gnu"11 12%class.b = type { i64 }13 14declare void @D(ptr sret(%class.b), ptr dereferenceable(32)) local_unnamed_addr15 16; Function Attrs: nounwind17define void @H(ptr noalias nocapture readnone, [2 x i64], ptr %ptr, i32 signext %v, i64 %l, i64 %idx, ptr nonnull dereferenceable(32) %ptr2) {18; CHECK-LABEL: @H(19; CHECK-NEXT: [[TMP3:%.*]] = alloca [[CLASS_B:%.*]], align 820; CHECK-NEXT: [[TMP4:%.*]] = extractvalue [2 x i64] [[TMP1:%.*]], 121; CHECK-NEXT: switch i64 [[TMP4]], label [[TMP6:%.*]] [22; CHECK-NEXT: i64 4, label [[FOO:%.*]]23; CHECK-NEXT: i64 5, label [[TMP5:%.*]]24; CHECK-NEXT: ]25; CHECK: 5:26; CHECK-NEXT: br label [[TMP12:%.*]]27; CHECK: 6:28; CHECK-NEXT: [[TMP7:%.*]] = icmp ugt i64 [[TMP4]], 529; CHECK-NEXT: br i1 [[TMP7]], label [[TMP8:%.*]], label [[TMP12]]30; CHECK: 8:31; CHECK-NEXT: [[TMP9:%.*]] = load i8, ptr inttoptr (i64 4 to ptr), align 432; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i8 [[TMP9]], 4733; CHECK-NEXT: [[TMP11:%.*]] = select i1 [[TMP10]], i64 5, i64 434; CHECK-NEXT: br label [[TMP12]]35; CHECK: 12:36; CHECK-NEXT: [[TMP13:%.*]] = phi i64 [ 4, [[TMP5]] ], [ [[TMP11]], [[TMP8]] ], [ 4, [[TMP6]] ]37; CHECK-NEXT: [[TMP14:%.*]] = icmp ne i64 [[TMP4]], 038; CHECK-NEXT: [[TMP15:%.*]] = icmp ugt i64 [[TMP4]], [[TMP13]]39; CHECK-NEXT: [[TMP16:%.*]] = and i1 [[TMP14]], [[TMP15]]40; CHECK-NEXT: br i1 [[TMP16]], label [[TMP17:%.*]], label [[A_EXIT:%.*]]41; CHECK: 17:42; CHECK-NEXT: [[TMP18:%.*]] = tail call ptr @memchr(ptr [[PTR:%.*]], i32 signext [[V:%.*]], i64 [[L:%.*]])43; CHECK-NEXT: [[TMP19:%.*]] = icmp eq ptr [[TMP18]], null44; CHECK-NEXT: [[TMP20:%.*]] = sext i1 [[TMP19]] to i6445; CHECK-NEXT: br label [[A_EXIT]]46; CHECK: a.exit:47; CHECK-NEXT: [[TMP21:%.*]] = phi i64 [ -1, [[TMP12]] ], [ [[TMP20]], [[TMP17]] ]48; CHECK-NEXT: [[TMP22:%.*]] = inttoptr i64 0 to ptr49; CHECK-NEXT: [[TMP23:%.*]] = sub nsw i64 [[TMP21]], [[TMP13]]50; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[TMP3]])51; CHECK-NEXT: [[TMP24:%.*]] = icmp ult i64 [[TMP23]], 252; CHECK-NEXT: br i1 [[TMP24]], label [[G_EXIT:%.*]], label [[TMP25:%.*]]53; CHECK: 25:54; CHECK-NEXT: [[TMP26:%.*]] = getelementptr inbounds i8, ptr [[TMP22]], i64 [[IDX:%.*]]55; CHECK-NEXT: [[TMP27:%.*]] = icmp eq ptr [[TMP26]], null56; CHECK-NEXT: br i1 [[TMP27]], label [[TMP28:%.*]], label [[TMP29:%.*]]57; CHECK: 28:58; CHECK-NEXT: unreachable59; CHECK: 29:60; CHECK-NEXT: call void @D(ptr nonnull sret([[CLASS_B]]) [[TMP3]], ptr nonnull dereferenceable(32) [[PTR2:%.*]])61; CHECK-NEXT: br label [[G_EXIT]]62; CHECK: G.exit:63; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[TMP3]])64; CHECK-NEXT: br label [[FOO]]65; CHECK: foo:66; CHECK-NEXT: ret void67;68 %3 = alloca %class.b, align 869 %.sroa.0 = alloca i64, align 870 store i64 0, ptr %.sroa.0, align 871 %4 = extractvalue [2 x i64] %1, 172 switch i64 %4, label %6 [73 i64 4, label %foo74 i64 5, label %575 ]76 77; <label>:5:78 br label %1279 80; <label>:6:81 %7 = icmp ugt i64 %4, 582 br i1 %7, label %8, label %1283 84; <label>:8:85 %9 = load i8, ptr inttoptr (i64 4 to ptr), align 486 %10 = icmp eq i8 %9, 4787 %11 = select i1 %10, i64 5, i64 488 br label %1289 90; <label>:12:91 %13 = phi ptr [ %.sroa.0, %5 ], [ %.sroa.0, %8 ], [ %.sroa.0, %6 ]92 %14 = phi i64 [ 4, %5 ], [ %11, %8 ], [ 4, %6 ]93 %15 = icmp ne i64 %4, 094 %16 = icmp ugt i64 %4, %1495 %17 = and i1 %15, %1696 br i1 %17, label %18, label %a.exit97 98; <label>:18:99 %19 = tail call ptr @memchr(ptr %ptr, i32 signext %v, i64 %l)100 %20 = icmp eq ptr %19, null101 %21 = sext i1 %20 to i64102 br label %a.exit103 104a.exit:105 %22 = phi i64 [ -1, %12 ], [ %21, %18 ]106 %23 = load ptr, ptr %13, align 8107 %24 = sub nsw i64 %22, %14108 call void @llvm.lifetime.start.p0(ptr nonnull %3)109 %25 = icmp ult i64 %24, 2110 br i1 %25, label %G.exit, label %26111 112; <label>:27:113 %27 = getelementptr inbounds i8, ptr %23, i64 %idx114 %28 = icmp eq ptr %27, null115 br i1 %28, label %29, label %30116 117; <label>:30:118 unreachable119 120; <label>:31:121 call void @D(ptr nonnull sret(%class.b) %3, ptr nonnull dereferenceable(32) %ptr2)122 br label %G.exit123 124G.exit:125 call void @llvm.lifetime.end.p0(ptr nonnull %3)126 br label %foo127 128foo:129 ret void130}131 132; Function Attrs: nounwind readonly133declare ptr @memchr(ptr, i32 signext, i64) local_unnamed_addr134 135; Function Attrs: argmemonly nounwind136declare void @llvm.lifetime.start.p0(ptr nocapture)137 138; Function Attrs: argmemonly nounwind139declare void @llvm.lifetime.end.p0(ptr nocapture)140;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:141; CHECK-MODIFY-CFG: {{.*}}142; CHECK-PRESERVE-CFG: {{.*}}143