xref: /llvm-project/llvm/test/Transforms/LICM/pr51333.ll (revision 07253bc8c0a1f7f502fc5bb94f4205752c0d22e4)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -passes='early-cse<memssa>,loop-mssa(licm)' < %s | FileCheck %s
3
4; This used to assert because was have a MemoryDef for what turns out to be
5; a readnone call after EarlyCSE.
6
7@fn_ptr = external global ptr, align 1
8
9define void @test() {
10; CHECK-LABEL: @test(
11; CHECK-NEXT:  entry:
12; CHECK-NEXT:    br label [[DO_BODY:%.*]]
13; CHECK:       do.body:
14; CHECK-NEXT:    store ptr @readnone_fn, ptr @fn_ptr, align 8
15; CHECK-NEXT:    call void @readnone_fn()
16; CHECK-NEXT:    call void @foo()
17; CHECK-NEXT:    br label [[DO_BODY]]
18;
19entry:
20  br label %do.body
21
22do.body:
23  store ptr @readnone_fn, ptr @fn_ptr
24  %fn = load ptr, ptr @fn_ptr
25  call void %fn()
26  call void @foo()
27  br label %do.body
28}
29
30declare void @foo()
31declare void @readnone_fn() readnone
32