xref: /llvm-project/llvm/test/Transforms/NewGVN/readattrs.ll (revision 229640343e400394b315c6798c7c19e8a9bd188c)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
2; RUN: opt -passes=newgvn -S -o - < %s | FileCheck %s
3
4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
5target triple = "x86_64-unknown-linux-gnu"
6
7declare void @use(ptr readonly nocapture)
8
9define i8 @test() {
10; CHECK-LABEL: define i8 @test() {
11; CHECK-NEXT:    [[A:%.*]] = alloca i8, align 1
12; CHECK-NEXT:    store i8 1, ptr [[A]], align 1
13; CHECK-NEXT:    call void @use(ptr [[A]])
14; CHECK-NEXT:    ret i8 1
15;
16  %a = alloca i8
17  store i8 1, ptr %a
18  call void @use(ptr %a)
19  %b = load i8, ptr %a
20  ret i8 %b
21}
22