xref: /llvm-project/llvm/test/Transforms/MemCpyOpt/variable-sized-memcpy-uninit.ll (revision a11faeed446882a81e79d780125d93e7199df645) 
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=memcpyopt -S -verify-memoryssa | FileCheck %s
3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4
5define void @test(i64 %size) {
6; CHECK-LABEL: @test(
7; CHECK-NEXT:    [[SRC:%.*]] = alloca i8, i64 [[SIZE:%.*]], align 1
8; CHECK-NEXT:    [[DST:%.*]] = alloca i8, i64 [[SIZE]], align 1
9; CHECK-NEXT:    ret void
10;
11  %src = alloca i8, i64 %size
12  %dst = alloca i8, i64 %size
13  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %dst, ptr align 8 %src, i64 %size, i1 false)
14
15  ret void
16}
17
18define void @test2(i64 %size1, i64 %size2, i64 %cpy_size) {
19; CHECK-LABEL: @test2(
20; CHECK-NEXT:    [[SRC:%.*]] = alloca i8, i64 [[SIZE1:%.*]], align 1
21; CHECK-NEXT:    [[DST:%.*]] = alloca i8, i64 [[SIZE2:%.*]], align 1
22; CHECK-NEXT:    ret void
23;
24  %src = alloca i8, i64 %size1
25  %dst = alloca i8, i64 %size2
26  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %dst, ptr align 8 %src, i64 %cpy_size, i1 false)
27
28  ret void
29}
30
31declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1)
32