xref: /llvm-project/llvm/test/Analysis/ValueTracking/func-ptr-lsb.ll (revision 69bd66b3ced6a295b302c6548aba11d7734c2cd7)
1; RUN: opt -passes=instcombine -S < %s | FileCheck %s
2
3target datalayout = "e-p:32:32-n32-S64"
4
5; CHECK-LABEL: @foo_ptr
6; CHECK: and
7define i32 @foo_ptr() {
8entry:
9  ; Even though the address of @foo is aligned, we cannot assume that the
10  ; pointer has the same alignment. This is not true for e.g. ARM targets
11  ; which store ARM/Thumb state in the LSB
12  %and = and i32 ptrtoint (ptr @foo to i32), -4
13  ret i32 %and
14}
15
16define internal void @foo() align 16 {
17entry:
18  ret void
19}
20