| ; RUN: opt -S -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -enable-interleaved-mem-accesses=true < %s |
| |
| ; Make sure the vectorizer can handle this loop: The strided load is only used |
| ; by the loop's exit condition, which is not vectorized, and is therefore |
| ; considered uniform while also forming an interleave group. |
| |
| %0 = type { i32 ()*, i32 } |
| |
| @0 = internal unnamed_addr constant [59 x %0] [%0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 {i32 ()* null, i32 258}, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer, %0 zeroinitializer, %0 zeroinitializer, |
| %0 zeroinitializer], align 8 |
| |
| define dso_local void @test_dead_load(i32 %arg) { |
| ; CHECK-LABEL: @test_dead_load( |
| ; CHECK: vector.body: |
| ; CHECK: %wide.vec = load <16 x i32>, <16 x i32>* %3, align 8 |
| ; CHECK: %strided.vec = shufflevector <16 x i32> %wide.vec, <16 x i32> undef, <4 x i32> <i32 0, i32 4, i32 8, i32 12> |
| bb1: |
| br label %bb2 |
| |
| bb2: |
| %tmp = phi %0* [ %tmp6, %bb2 ], [ getelementptr inbounds ([59 x %0], [59 x %0]* @0, i64 0, i64 0), %bb1 ] |
| %tmp3 = getelementptr inbounds %0, %0* %tmp, i64 0, i32 1 |
| %tmp4 = load i32, i32* %tmp3, align 8 |
| %tmp5 = icmp eq i32 %tmp4, 258 |
| %tmp6 = getelementptr inbounds %0, %0* %tmp, i64 1 |
| br i1 %tmp5, label %bb65, label %bb2 |
| |
| bb65: |
| unreachable |
| } |