xref: /llvm-project/llvm/test/Transforms/MemCpyOpt/profitable-memset.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
3
4target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
5
6define void @foo(ptr nocapture %P) {
7; CHECK-LABEL: @foo(
8; CHECK-NEXT:  entry:
9; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i16, ptr [[P:%.*]], i64 1
10; CHECK-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds i16, ptr [[P:%.*]], i64 3
11; CHECK-NEXT:    call void @llvm.memset.p0.i64(ptr align 2 [[P:%.*]], i8 0, i64 8, i1 false)
12; CHECK-NEXT:    ret void
13;
14entry:
15  %arrayidx = getelementptr inbounds i16, ptr %P, i64 1
16  %arrayidx1 = getelementptr inbounds i16, ptr %P, i64 3
17  store i16 0, ptr %P, align 2
18  store i32 0, ptr %arrayidx, align 4
19  store i16 0, ptr %arrayidx1, align 2
20  ret void
21}
22
23