diff options
Diffstat (limited to 'test/Transforms/LoopVectorize/SystemZ/load-store-scalarization-cost.ll')
| -rw-r--r-- | test/Transforms/LoopVectorize/SystemZ/load-store-scalarization-cost.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/Transforms/LoopVectorize/SystemZ/load-store-scalarization-cost.ll b/test/Transforms/LoopVectorize/SystemZ/load-store-scalarization-cost.ll new file mode 100644 index 000000000000..e7096c29b994 --- /dev/null +++ b/test/Transforms/LoopVectorize/SystemZ/load-store-scalarization-cost.ll @@ -0,0 +1,33 @@ +; REQUIRES: asserts +; RUN: opt -mtriple=s390x-unknown-linux -mcpu=z13 -loop-vectorize \ +; RUN: -force-vector-width=4 -debug-only=loop-vectorize \ +; RUN: -disable-output -enable-interleaved-mem-accesses=false < %s 2>&1 | \ +; RUN: FileCheck %s +; +; Check that a scalarized load/store does not get a cost for insterts/ +; extracts, since z13 supports element load/store. + +define void @fun(i32* %data, i64 %n) { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %tmp0 = getelementptr inbounds i32, i32* %data, i64 %i + %tmp1 = load i32, i32* %tmp0, align 4 + %tmp2 = add i32 %tmp1, 1 + store i32 %tmp2, i32* %tmp0, align 4 + %i.next = add nuw nsw i64 %i, 2 + %cond = icmp slt i64 %i.next, %n + br i1 %cond, label %for.body, label %for.end + +for.end: + ret void + +; CHECK: LV: Found an estimated cost of 4 for VF 4 For instruction: %tmp1 = load i32, i32* %tmp0, align 4 +; CHECK: LV: Found an estimated cost of 4 for VF 4 For instruction: store i32 %tmp2, i32* %tmp0, align 4 + +; CHECK: LV: Scalarizing: %tmp1 = load i32, i32* %tmp0, align 4 +; CHECK: LV: Scalarizing: store i32 %tmp2, i32* %tmp0, align 4 +} + |