1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
2 ; RUN: opt -passes=bpf-aspace-simplify -mtriple=bpf-pc-linux -S < %s | FileCheck %s
4 ; Check that when bpf-aspace-simplify pass modifies chain
5 ; 'cast M->N -> GEP -> cast N->M' it does not remove GEP,
6 ; when that GEP is used by some other instruction.
8 define dso_local ptr addrspace(1) @test (ptr addrspace(1) %p) {
9 ; CHECK-LABEL: define dso_local ptr addrspace(1) @test(
10 ; CHECK-SAME: ptr addrspace(1) [[P:%.*]]) {
12 ; CHECK-NEXT: [[A:%.*]] = addrspacecast ptr addrspace(1) [[P]] to ptr
13 ; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 8
14 ; CHECK-NEXT: [[B1:%.*]] = getelementptr inbounds i8, ptr addrspace(1) [[P]], i64 8
15 ; CHECK-NEXT: call void @sink(ptr [[B]])
16 ; CHECK-NEXT: ret ptr addrspace(1) [[B1]]
19 %a = addrspacecast ptr addrspace(1) %p to ptr
20 %b = getelementptr inbounds i8, ptr %a, i64 8
21 %c = addrspacecast ptr %b to ptr addrspace(1)
22 call void @sink(ptr %b)
23 ret ptr addrspace(1) %c
26 declare dso_local void @sink(ptr)