1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=instsimplify < %s | FileCheck %s
target datalayout = "A5"
; A 0 valued byval pointer may be valid
define i1 @byval_may_be_zero(ptr addrspace(5) byval(i32) %ptr) {
; CHECK-LABEL: @byval_may_be_zero(
; CHECK-NEXT: [[CMP:%.*]] = icmp eq ptr addrspace(5) [[PTR:%.*]], null
; CHECK-NEXT: ret i1 [[CMP]]
;
%cmp = icmp eq ptr addrspace(5) %ptr, null
ret i1 %cmp
}
; FIXME: The interpretation of nonnull assumes a 0 pointer value, so
; this really is an incorrect fold.
define i1 @nonnull_may_be_zero(ptr addrspace(5) nonnull %ptr) {
; CHECK-LABEL: @nonnull_may_be_zero(
; CHECK-NEXT: ret i1 false
;
%cmp = icmp eq ptr addrspace(5) %ptr, null
ret i1 %cmp
}
|
