1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -mtriple=amdgcn-amd-amdhsa -infer-address-spaces -o - %s | FileCheck %s
; https://github.com/llvm/llvm-project/issues/53665
define i32 @addrspacecast_ptrtoint_inttoptr(i8 addrspace(1)* %arg) {
; CHECK-LABEL: @addrspacecast_ptrtoint_inttoptr(
; CHECK-NEXT: bb:
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i8 addrspace(1)* [[ARG:%.*]] to i32 addrspace(1)*
; CHECK-NEXT: [[LOAD:%.*]] = load i32, i32 addrspace(1)* [[TMP0]], align 4
; CHECK-NEXT: ret i32 [[LOAD]]
;
bb:
%asc = addrspacecast i8 addrspace(1)* %arg to i8*
%p2i = ptrtoint i8* %asc to i64
%i2p = inttoptr i64 %p2i to i32*
%load = load i32, i32* %i2p
ret i32 %load
}
define i32 @assumed_ptrtoint_inttoptr(i8* %arg) {
bb:
%is.priv = call i1 @llvm.amdgcn.is.private(i8* %arg)
%not.is.priv = xor i1 %is.priv, -1
%is.shared = call i1 @llvm.amdgcn.is.shared(i8* %arg)
%not.is.shared = xor i1 %is.shared, -1
%and = and i1 %not.is.priv, %not.is.shared
tail call void @llvm.assume(i1 %and)
%p2i = ptrtoint i8* %arg to i64
%i2p = inttoptr i64 %p2i to i32*
%load = load i32, i32* %i2p
ret i32 %load
}
define i32 @addrspacecast_ptrtoint_inttptr_nontrivial(i8 addrspace(3)* %arg) {
; CHECK-LABEL: @addrspacecast_ptrtoint_inttptr_nontrivial(
; CHECK-NEXT: bb:
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i8 addrspace(3)* [[ARG:%.*]] to i32 addrspace(3)*
; CHECK-NEXT: [[LOAD:%.*]] = load i32, i32 addrspace(3)* [[TMP0]], align 4
; CHECK-NEXT: ret i32 [[LOAD]]
;
bb:
%asc = addrspacecast i8 addrspace(3)* %arg to i8*
%p2i = ptrtoint i8* %asc to i64
%i2p = inttoptr i64 %p2i to i32*
%load = load i32, i32* %i2p
ret i32 %load
}
declare void @llvm.assume(i1 noundef) #0
declare i1 @llvm.amdgcn.is.shared(i8* nocapture) #1
declare i1 @llvm.amdgcn.is.private(i8* nocapture) #1
attributes #0 = { inaccessiblememonly nofree nosync nounwind willreturn }
attributes #1 = { nounwind readnone speculatable willreturn }
|
