1 ; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
3 declare void @llvm.masked.scatter.v2i32.v2p0i32(<2 x i32> , <2 x i32*> , i32 , <2 x i1> )
4 declare <2 x i32> @llvm.masked.gather.v2i32.v2p0i32(<2 x i32*>, i32, <2 x i1>, <2 x i32>)
6 ; This test ensures that masked scatter and gather operations, which take vectors of pointers,
7 ; do not have pointer aliasing ignored when being processed.
8 ; No scatter/gather calls should end up eliminated
9 ; CHECK: llvm.masked.gather
10 ; CHECK: llvm.masked.gather
11 ; CHECK: llvm.masked.scatter
12 ; CHECK: llvm.masked.gather
13 ; CHECK: llvm.masked.scatter
14 ; CHECK: llvm.masked.gather
15 define spir_kernel void @test(<2 x i32*> %in1, <2 x i32*> %in2, i32* %out) {
17 ; Just some temporary storage
20 %tmp.i = insertelement <2 x i32*> undef, i32* %tmp.0, i32 0
21 %tmp = insertelement <2 x i32*> %tmp.i, i32* %tmp.1, i32 1
22 ; Read from in1 and in2
23 %in1.v = call <2 x i32> @llvm.masked.gather.v2i32.v2p0i32(<2 x i32*> %in1, i32 1, <2 x i1> <i1 true, i1 true>, <2 x i32> undef) #1
24 %in2.v = call <2 x i32> @llvm.masked.gather.v2i32.v2p0i32(<2 x i32*> %in2, i32 1, <2 x i1> <i1 true, i1 true>, <2 x i32> undef) #1
25 ; Store in1 to the allocas
26 call void @llvm.masked.scatter.v2i32.v2p0i32(<2 x i32> %in1.v, <2 x i32*> %tmp, i32 1, <2 x i1> <i1 true, i1 true>);
27 ; Read in1 from the allocas
28 ; This gather should alias the scatter we just saw
29 %tmp.v.0 = call <2 x i32> @llvm.masked.gather.v2i32.v2p0i32(<2 x i32*> %tmp, i32 1, <2 x i1> <i1 true, i1 true>, <2 x i32> undef) #1
30 ; Store in2 to the allocas
31 call void @llvm.masked.scatter.v2i32.v2p0i32(<2 x i32> %in2.v, <2 x i32*> %tmp, i32 1, <2 x i1> <i1 true, i1 true>);
32 ; Read in2 from the allocas
33 ; This gather should alias the scatter we just saw, and not be eliminated
34 %tmp.v.1 = call <2 x i32> @llvm.masked.gather.v2i32.v2p0i32(<2 x i32*> %tmp, i32 1, <2 x i1> <i1 true, i1 true>, <2 x i32> undef) #1
35 ; Store in2 to out for good measure
36 %tmp.v.1.0 = extractelement <2 x i32> %tmp.v.1, i32 0
37 %tmp.v.1.1 = extractelement <2 x i32> %tmp.v.1, i32 1
38 store i32 %tmp.v.1.0, i32* %out
39 %out.1 = getelementptr i32, i32* %out, i32 1
40 store i32 %tmp.v.1.1, i32* %out.1