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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes='sroa<preserve-cfg>' -S < %s | FileCheck %s --check-prefixes=CHECK,CHECK-PRESERVE-CFG3; RUN: opt -passes='sroa<modify-cfg>' -S < %s | FileCheck %s --check-prefixes=CHECK,CHECK-MODIFY-CFG4 5; This test checks that SROA does not introduce ptrtoint and inttoptr6; casts from and to non-integral pointers. The "ni:4" bit in the7; datalayout states that pointers of address space 4 are to be8; considered "non-integral".9 10target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:4"11target triple = "x86_64-unknown-linux-gnu"12 13define void @f0(i1 %alwaysFalse, i64 %val) {14; CHECK-LABEL: @f0(15; CHECK-NEXT: entry:16; CHECK-NEXT: [[LOC:%.*]] = alloca i64, align 817; CHECK-NEXT: store i64 [[VAL:%.*]], ptr [[LOC]], align 818; CHECK-NEXT: br i1 [[ALWAYSFALSE:%.*]], label [[NEVERTAKEN:%.*]], label [[ALWAYSTAKEN:%.*]]19; CHECK: neverTaken:20; CHECK-NEXT: [[LOC_0_PTR:%.*]] = load ptr addrspace(4), ptr [[LOC]], align 821; CHECK-NEXT: store i8 5, ptr addrspace(4) [[LOC_0_PTR]], align 122; CHECK-NEXT: ret void23; CHECK: alwaysTaken:24; CHECK-NEXT: ret void25;26entry:27 %loc = alloca i6428 store i64 %val, ptr %loc29 br i1 %alwaysFalse, label %neverTaken, label %alwaysTaken30 31neverTaken:32 %ptr = load ptr addrspace(4), ptr %loc33 store i8 5, ptr addrspace(4) %ptr34 ret void35 36alwaysTaken:37 ret void38}39 40define i64 @f1(i1 %alwaysFalse, ptr addrspace(4) %val) {41; CHECK-LABEL: @f1(42; CHECK-NEXT: entry:43; CHECK-NEXT: [[LOC:%.*]] = alloca ptr addrspace(4), align 844; CHECK-NEXT: store ptr addrspace(4) [[VAL:%.*]], ptr [[LOC]], align 845; CHECK-NEXT: br i1 [[ALWAYSFALSE:%.*]], label [[NEVERTAKEN:%.*]], label [[ALWAYSTAKEN:%.*]]46; CHECK: neverTaken:47; CHECK-NEXT: [[LOC_0_INT:%.*]] = load i64, ptr [[LOC]], align 848; CHECK-NEXT: ret i64 [[LOC_0_INT]]49; CHECK: alwaysTaken:50; CHECK-NEXT: ret i64 4251;52entry:53 %loc = alloca ptr addrspace(4)54 store ptr addrspace(4) %val, ptr %loc55 br i1 %alwaysFalse, label %neverTaken, label %alwaysTaken56 57neverTaken:58 %int = load i64, ptr %loc59 ret i64 %int60 61alwaysTaken:62 ret i64 4263}64 65define ptr addrspace(4) @memset(i1 %alwaysFalse) {66; CHECK-LABEL: @memset(67; CHECK-NEXT: entry:68; CHECK-NEXT: [[X:%.*]] = alloca ptr addrspace(4), align 869; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 8 [[X]], i8 5, i64 8, i1 false)70; CHECK-NEXT: br i1 [[ALWAYSFALSE:%.*]], label [[NEVERTAKEN:%.*]], label [[ALWAYSTAKEN:%.*]]71; CHECK: neverTaken:72; CHECK-NEXT: [[X_0_X_FIELD_LD_0:%.*]] = load ptr addrspace(4), ptr [[X]], align 873; CHECK-NEXT: ret ptr addrspace(4) [[X_0_X_FIELD_LD_0]]74; CHECK: alwaysTaken:75; CHECK-NEXT: ret ptr addrspace(4) null76;77entry:78 %x = alloca ptr addrspace(4)79 call void @llvm.memset.p0.i64(ptr align 8 %x, i8 5, i64 16, i1 false)80 br i1 %alwaysFalse, label %neverTaken, label %alwaysTaken81 82neverTaken:83 %x.field.ld.0 = load ptr addrspace(4), ptr %x84 ret ptr addrspace(4) %x.field.ld.085 86alwaysTaken:87 ret ptr addrspace(4) null88}89 90;; TODO: This one demonstrates a missed oppurtunity. The only known bit91;; pattern for a non-integral bit pattern is that null is zero. As such92;; we could do SROA and replace the memset w/a null store. This will93;; usually be gotten by instcombine.94define ptr addrspace(4) @memset_null(i1 %alwaysFalse) {95; CHECK-LABEL: @memset_null(96; CHECK-NEXT: entry:97; CHECK-NEXT: [[X:%.*]] = alloca ptr addrspace(4), align 898; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 8 [[X]], i8 0, i64 8, i1 false)99; CHECK-NEXT: br i1 [[ALWAYSFALSE:%.*]], label [[NEVERTAKEN:%.*]], label [[ALWAYSTAKEN:%.*]]100; CHECK: neverTaken:101; CHECK-NEXT: [[X_0_X_FIELD_LD_0:%.*]] = load ptr addrspace(4), ptr [[X]], align 8102; CHECK-NEXT: ret ptr addrspace(4) [[X_0_X_FIELD_LD_0]]103; CHECK: alwaysTaken:104; CHECK-NEXT: ret ptr addrspace(4) null105;106entry:107 %x = alloca ptr addrspace(4)108 call void @llvm.memset.p0.i64(ptr align 8 %x, i8 0, i64 16, i1 false)109 br i1 %alwaysFalse, label %neverTaken, label %alwaysTaken110 111neverTaken:112 %x.field.ld.0 = load ptr addrspace(4), ptr %x113 ret ptr addrspace(4) %x.field.ld.0114 115alwaysTaken:116 ret ptr addrspace(4) null117}118 119%union.anon = type { ptr }120 121define ptr@f2(ptr addrspace(4) %p) {122; CHECK-LABEL: @f2(123; CHECK-NEXT: [[DOTSROA_0:%.*]] = alloca ptr, align 8124; CHECK-NEXT: store ptr addrspace(4) [[P:%.*]], ptr [[DOTSROA_0]], align 8125; CHECK-NEXT: [[DOTSROA_0_0__SROA_0_0_:%.*]] = load ptr, ptr [[DOTSROA_0]], align 8126; CHECK-NEXT: ret ptr [[DOTSROA_0_0__SROA_0_0_]]127;128 %1 = alloca %union.anon, align 8129 store ptr addrspace(4) %p, ptr %1, align 8130 %2 = load ptr, ptr %1, align 8131 ret ptr %2132}133 134declare void @llvm.memset.p0.i64(ptr, i8, i64, i1)135;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:136; CHECK-MODIFY-CFG: {{.*}}137; CHECK-PRESERVE-CFG: {{.*}}138