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