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>
77 lines
3.1 KiB
LLVM
77 lines
3.1 KiB
LLVM
; RUN: opt %loadNPMPolly '-passes=print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s
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; RUN: opt %loadNPMPolly -S -passes=polly-codegen < %s 2>&1 | FileCheck %s --check-prefix=IR
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;
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; void f(long *A, long *ptr, long val) {
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; for (long i = 0; i < 100; i++) {
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; long ptrV = ((long)(ptr + 1)) + 1;
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; long valP = (long)(((long *)(val + 1)) + 1);
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; A[ptrV] += A[valP];
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; }
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; }
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;
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; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + val] };
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + ptr] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + ptr] };
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;
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; IR: entry:
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; IR-NEXT: %ptr1 = ptrtoint ptr %ptr to i32
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;
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; IR: polly.stmt.for.body:
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; IR-NEXT: %p_tmp1 = inttoptr i64 %14 to ptr
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; IR-NEXT: %p_add.ptr2 = getelementptr inbounds i64, ptr %p_tmp1, i64 1
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; IR-NEXT: %p_tmp2 = ptrtoint ptr %p_add.ptr2 to i64
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; IR-NEXT: %p_arrayidx = getelementptr inbounds i64, ptr %A, i64 %p_tmp2
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; IR-NEXT: %tmp3_p_scalar_ = load i64, ptr %p_arrayidx, align 8, !alias.scope !2, !noalias !5
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; IR-NEXT: %tmp4_p_scalar_ = load i64, ptr %scevgep, align 8, !alias.scope !2, !noalias !5
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; IR-NEXT: %p_add4 = add nsw i64 %tmp4_p_scalar_, %tmp3_p_scalar_
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; IR-NEXT: store i64 %p_add4, ptr %scevgep, align 8, !alias.scope !2, !noalias !5
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; IR-NEXT: %polly.indvar_next = add nsw i64 %polly.indvar, 1
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; IR-NEXT: %polly.loop_cond = icmp sle i64 %polly.indvar_next, 99
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; IR-NEXT: br i1 %polly.loop_cond, label %polly.loop_header, label %polly.loop_exit
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;
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; IR: polly.loop_preheader:
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; IR-NEXT: %14 = add i64 %val, 1
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; IR-NEXT: %15 = shl i32 %ptr1, 3
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; IR-NEXT: %16 = add i32 %15, 72
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; IR-NEXT: %scevgep = getelementptr i8, ptr %A, i32 %16
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; IR-NEXT: br label %polly.loop_header
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;
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target datalayout = "e-p:32:32:32-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @f(ptr %A, ptr %ptr, i64 %val) {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
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%exitcond = icmp ne i64 %i.0, 100
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br i1 %exitcond, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%add.ptr = getelementptr inbounds i64, ptr %ptr, i64 1
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%tmp = ptrtoint ptr %add.ptr to i64
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%add = add nsw i64 %tmp, 1
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%add1 = add nsw i64 %val, 1
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%tmp1 = inttoptr i64 %add1 to ptr
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%add.ptr2 = getelementptr inbounds i64, ptr %tmp1, i64 1
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%tmp2 = ptrtoint ptr %add.ptr2 to i64
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%arrayidx = getelementptr inbounds i64, ptr %A, i64 %tmp2
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%tmp3 = load i64, ptr %arrayidx
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%arrayidx3 = getelementptr inbounds i64, ptr %A, i64 %add
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%tmp4 = load i64, ptr %arrayidx3
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%add4 = add nsw i64 %tmp4, %tmp3
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store i64 %add4, ptr %arrayidx3
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br label %for.inc
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for.inc: ; preds = %for.body
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%inc = add nuw nsw i64 %i.0, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret void
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}
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