4b3a878e8a
The patch sets the vectorization metadata to false for Polly's fallback loops. These are the loops executed when RTCs fail. This minimizes the multiple loop versioning carried out by Polly and subsequently by the Loop Vectorizer. --------- Co-authored-by: Michael Kruse <github@meinersbur.de>
53 lines
1.7 KiB
LLVM
53 lines
1.7 KiB
LLVM
; RUN: opt %loadNPMPolly -passes=polly-codegen -polly-parallel -S < %s | FileCheck %s
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;
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; void foo(float *A, float *B) {
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; for (long i = 0; i < 1000; i++)
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; for (long j = 0; j < 1000; j++)
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; A[i] = B[i];
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; }
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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; CHECK: define internal void @foo_polly_subfn
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define void @foo(ptr %A, ptr %B) {
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bb:
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br label %bb2
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bb2: ; preds = %bb11, %bb
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%i.0 = phi i64 [ 0, %bb ], [ %tmp12, %bb11 ]
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%exitcond1 = icmp ne i64 %i.0, 1000
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br i1 %exitcond1, label %bb3, label %bb13
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bb3: ; preds = %bb2
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br label %bb4
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bb4: ; preds = %bb8, %bb3
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%j.0 = phi i64 [ 0, %bb3 ], [ %tmp9, %bb8 ]
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%exitcond = icmp ne i64 %j.0, 1000
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br i1 %exitcond, label %bb5, label %bb10
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bb5: ; preds = %bb4
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%tmp = getelementptr inbounds float, ptr %B, i64 %i.0
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%tmp7 = getelementptr inbounds float, ptr %A, i64 %i.0
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%tmp6 = load float, ptr %tmp, align 4
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store float %tmp6, ptr %tmp7, align 4
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; CHECK: %tmp6_p_scalar_ = load float, ptr %scevgep, align 4, !alias.scope !3, !noalias !6
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; CHECK: store float %tmp6_p_scalar_, ptr %scevgep7, align 4, !alias.scope !6, !noalias !3
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br label %bb8
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bb8: ; preds = %bb5
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%tmp9 = add nsw i64 %j.0, 1
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br label %bb4
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bb10: ; preds = %bb4
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br label %bb11
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bb11: ; preds = %bb10
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%tmp12 = add nsw i64 %i.0, 1
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br label %bb2
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bb13: ; preds = %bb2
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ret void
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}
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