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
|
; RUN: opt -aa-pipeline=globals-aa -passes='require<globals-aa>,gvn' -S < %s | FileCheck %s
; RUN: opt -aa-pipeline=basic-aa,globals-aa -passes='require<globals-aa>,gvn' -S < %s | FileCheck %s
;
; Functions w/o `nosync` attribute may communicate via memory and must be
; treated conservatively. Taken from https://reviews.llvm.org/D115302.
target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64"
target triple = "nvptx64-nvidia-cuda"
@s = internal local_unnamed_addr addrspace(3) global i32 undef, align 4
; CHECK-LABEL: @bar_sync
; CHECK: store
; CHECK: tail call void @llvm.nvvm.bar.sync(i32 0)
; CHECK: load
define dso_local i32 @bar_sync(i32 %0) local_unnamed_addr {
store i32 %0, ptr addrspacecast (ptr addrspace(3) @s to ptr), align 4
tail call void @llvm.nvvm.bar.sync(i32 0)
%2 = load i32, ptr addrspacecast (ptr addrspace(3) @s to ptr), align 4
ret i32 %2
}
declare void @llvm.nvvm.bar.sync(i32) #0
; CHECK-LABEL: @barrier0
; CHECK: store
; CHECK: tail call void @llvm.nvvm.barrier0()
; CHECK: load
define dso_local i32 @barrier0(i32 %0) local_unnamed_addr {
store i32 %0, ptr addrspacecast (ptr addrspace(3) @s to ptr), align 4
tail call void @llvm.nvvm.barrier0()
%2 = load i32, ptr addrspacecast (ptr addrspace(3) @s to ptr), align 4
ret i32 %2
}
declare void @llvm.nvvm.barrier0() #0
attributes #0 = { convergent nounwind }
|
