| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -instsimplify < %s | FileCheck %s |
| ; A 0 valued byval pointer may be valid |
| define i1 @byval_may_be_zero(i32 addrspace(5)* byval(i32) %ptr) { |
| ; CHECK-LABEL: @byval_may_be_zero( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 addrspace(5)* [[PTR:%.*]], null |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| %cmp = icmp eq i32 addrspace(5)* %ptr, null |
| ; FIXME: The interpretation of nonnull assumes a 0 pointer value, so |
| ; this really is an incorrect fold. |
| define i1 @nonnull_may_be_zero(i32 addrspace(5)* nonnull %ptr) { |
| ; CHECK-LABEL: @nonnull_may_be_zero( |
| ; CHECK-NEXT: ret i1 false |
| %cmp = icmp eq i32 addrspace(5)* %ptr, null |