xref: /llvm-project/llvm/test/Transforms/SROA/pr26972.ll (revision 4f7e5d22060e8a89237ffb93c3e7be6e92fee8fe)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes='sroa<preserve-cfg>' -S | FileCheck %s --check-prefixes=CHECK,CHECK-PRESERVE-CFG
3; RUN: opt < %s -passes='sroa<modify-cfg>' -S | FileCheck %s --check-prefixes=CHECK,CHECK-MODIFY-CFG
4target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
5target triple = "x86_64-pc-linux"
6
7; Make sure we properly handle allocas where the allocated
8; size overflows a uint32_t. This specific constant results in
9; the size in bits being 32 after truncation to a 32-bit int.
10define void @fn1() {
11; CHECK-LABEL: @fn1(
12; CHECK-NEXT:    ret void
13;
14  %a = alloca [1073741825 x i32], align 16
15  call void @llvm.lifetime.end.p0(i64 4294967300, ptr %a)
16  ret void
17}
18
19declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
20;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
21; CHECK-MODIFY-CFG: {{.*}}
22; CHECK-PRESERVE-CFG: {{.*}}
23