86 lines
3.4 KiB
LLVM
86 lines
3.4 KiB
LLVM
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; REQUIRES: asserts
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; RUN: opt -loop-vectorize -S -mcpu=core-avx2 --debug-only=loop-vectorize -vectorizer-maximize-bandwidth < %s 2>&1 | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: norecurse nounwind uwtable
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define void @doit_stride3(i8* nocapture %Ptr, i32 %Nels) local_unnamed_addr {
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;CHECK: LV: Found an estimated cost of 1 for VF 1 For instruction: store i8 %conv4
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;CHECK: LV: Found an estimated cost of 8 for VF 2 For instruction: store i8 %conv4
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;CHECK: LV: Found an estimated cost of 9 for VF 4 For instruction: store i8 %conv4
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;CHECK: LV: Found an estimated cost of 12 for VF 8 For instruction: store i8 %conv4
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;CHECK: LV: Found an estimated cost of 13 for VF 16 For instruction: store i8 %conv4
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;CHECK: LV: Found an estimated cost of 16 for VF 32 For instruction: store i8 %conv4
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entry:
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%cmp14 = icmp sgt i32 %Nels, 0
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br i1 %cmp14, label %for.body.lr.ph, label %for.end
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for.body.lr.ph:
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%conv = trunc i32 %Nels to i8
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%conv1 = shl i8 %conv, 1
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%conv4 = shl i8 %conv, 2
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br label %for.body
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for.body:
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%i.016 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
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%Ptr.addr.015 = phi i8* [ %Ptr, %for.body.lr.ph ], [ %incdec.ptr5, %for.body ]
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%incdec.ptr = getelementptr inbounds i8, i8* %Ptr.addr.015, i64 1
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store i8 %conv, i8* %Ptr.addr.015, align 1
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%incdec.ptr2 = getelementptr inbounds i8, i8* %Ptr.addr.015, i64 2
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store i8 %conv1, i8* %incdec.ptr, align 1
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%incdec.ptr5 = getelementptr inbounds i8, i8* %Ptr.addr.015, i64 3
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store i8 %conv4, i8* %incdec.ptr2, align 1
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%inc = add nuw nsw i32 %i.016, 1
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%exitcond = icmp eq i32 %inc, %Nels
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br i1 %exitcond, label %for.end.loopexit, label %for.body
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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; Function Attrs: norecurse nounwind uwtable
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define void @doit_stride4(i8* nocapture %Ptr, i32 %Nels) local_unnamed_addr {
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;CHECK: LV: Found an estimated cost of 1 for VF 1 For instruction: store i8 %conv7
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;CHECK: LV: Found an estimated cost of 13 for VF 2 For instruction: store i8 %conv7
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;CHECK: LV: Found an estimated cost of 10 for VF 4 For instruction: store i8 %conv7
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;CHECK: LV: Found an estimated cost of 11 for VF 8 For instruction: store i8 %conv7
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;CHECK: LV: Found an estimated cost of 12 for VF 16 For instruction: store i8 %conv7
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;CHECK: LV: Found an estimated cost of 16 for VF 32 For instruction: store i8 %conv7
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entry:
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%cmp19 = icmp sgt i32 %Nels, 0
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br i1 %cmp19, label %for.body.lr.ph, label %for.end
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for.body.lr.ph:
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%conv = trunc i32 %Nels to i8
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%conv1 = shl i8 %conv, 1
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%conv4 = shl i8 %conv, 2
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%mul6 = mul nsw i32 %Nels, 5
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%conv7 = trunc i32 %mul6 to i8
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br label %for.body
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for.body:
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%i.021 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
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%Ptr.addr.020 = phi i8* [ %Ptr, %for.body.lr.ph ], [ %incdec.ptr8, %for.body ]
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%incdec.ptr = getelementptr inbounds i8, i8* %Ptr.addr.020, i64 1
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store i8 %conv, i8* %Ptr.addr.020, align 1
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%incdec.ptr2 = getelementptr inbounds i8, i8* %Ptr.addr.020, i64 2
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store i8 %conv1, i8* %incdec.ptr, align 1
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%incdec.ptr5 = getelementptr inbounds i8, i8* %Ptr.addr.020, i64 3
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store i8 %conv4, i8* %incdec.ptr2, align 1
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%incdec.ptr8 = getelementptr inbounds i8, i8* %Ptr.addr.020, i64 4
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store i8 %conv7, i8* %incdec.ptr5, align 1
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%inc = add nuw nsw i32 %i.021, 1
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%exitcond = icmp eq i32 %inc, %Nels
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br i1 %exitcond, label %for.end.loopexit, label %for.body
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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