; RUN: opt < %s -basic-aa -gvn -S | FileCheck %s declare void @llvm.masked.scatter.v2i32.v2p0i32(<2 x i32> , <2 x i32*> , i32 , <2 x i1> ) declare <2 x i32> @llvm.masked.gather.v2i32.v2p0i32(<2 x i32*>, i32, <2 x i1>, <2 x i32>) ; This test ensures that masked scatter and gather operations, which take vectors of pointers, ; do not have pointer aliasing ignored when being processed. ; No scatter/gather calls should end up eliminated ; CHECK: llvm.masked.gather ; CHECK: llvm.masked.gather ; CHECK: llvm.masked.scatter ; CHECK: llvm.masked.gather ; CHECK: llvm.masked.scatter ; CHECK: llvm.masked.gather define spir_kernel void @test(<2 x i32*> %in1, <2 x i32*> %in2, i32* %out) { entry: ; Just some temporary storage %tmp.0 = alloca i32 %tmp.1 = alloca i32 %tmp.i = insertelement <2 x i32*> undef, i32* %tmp.0, i32 0 %tmp = insertelement <2 x i32*> %tmp.i, i32* %tmp.1, i32 1 ; Read from in1 and in2 %in1.v = call <2 x i32> @llvm.masked.gather.v2i32.v2p0i32(<2 x i32*> %in1, i32 1, <2 x i1> , <2 x i32> undef) #1 %in2.v = call <2 x i32> @llvm.masked.gather.v2i32.v2p0i32(<2 x i32*> %in2, i32 1, <2 x i1> , <2 x i32> undef) #1 ; Store in1 to the allocas call void @llvm.masked.scatter.v2i32.v2p0i32(<2 x i32> %in1.v, <2 x i32*> %tmp, i32 1, <2 x i1> ); ; Read in1 from the allocas ; This gather should alias the scatter we just saw %tmp.v.0 = call <2 x i32> @llvm.masked.gather.v2i32.v2p0i32(<2 x i32*> %tmp, i32 1, <2 x i1> , <2 x i32> undef) #1 ; Store in2 to the allocas call void @llvm.masked.scatter.v2i32.v2p0i32(<2 x i32> %in2.v, <2 x i32*> %tmp, i32 1, <2 x i1> ); ; Read in2 from the allocas ; This gather should alias the scatter we just saw, and not be eliminated %tmp.v.1 = call <2 x i32> @llvm.masked.gather.v2i32.v2p0i32(<2 x i32*> %tmp, i32 1, <2 x i1> , <2 x i32> undef) #1 ; Store in2 to out for good measure %tmp.v.1.0 = extractelement <2 x i32> %tmp.v.1, i32 0 %tmp.v.1.1 = extractelement <2 x i32> %tmp.v.1, i32 1 store i32 %tmp.v.1.0, i32* %out %out.1 = getelementptr i32, i32* %out, i32 1 store i32 %tmp.v.1.1, i32* %out.1 ret void }