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>
78 lines
3.2 KiB
LLVM
78 lines
3.2 KiB
LLVM
; RUN: opt %loadPolly -polly-print-import-jscop \
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; RUN: -disable-output < %s | FileCheck %s
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; RUN: opt %loadPolly -polly-import-jscop \
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; RUN: -polly-codegen -S < %s \
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; RUN: -polly-parallel \
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; RUN: | FileCheck %s -check-prefix=IR
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; void new_multidim_access(long n, long m, float A[][m]) {
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; for (long i = 0; i < n; i++)
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; for (long j = 0; j < 100; j++)
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; A[i][2 * j] += i + j;
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; }
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; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK: [n, m] -> { Stmt_bb4[i0, i1] -> MemRef_A[i0, 2i1] };
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; CHECK: new: [n, m] -> { Stmt_bb4[i0, i1] -> MemRef_A[i0, 13 + i1] };
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; CHECK: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK: [n, m] -> { Stmt_bb4[i0, i1] -> MemRef_A[i0, 2i1] };
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; CHECK: new: [n, m] -> { Stmt_bb4[i0, i1] -> MemRef_A[i0, 43 + i1] };
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; IR: %polly.access.mul.polly.subfunc.arg.A = mul nsw i64 %polly.indvar, %polly.subfunc.arg.m
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; IR: %6 = add nsw i64 %polly.indvar4, 13
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; IR: %polly.access.add.polly.subfunc.arg.A = add nsw i64 %polly.access.mul.polly.subfunc.arg.A, %6
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; IR: %polly.access.polly.subfunc.arg.A = getelementptr float, ptr %polly.subfunc.arg.A, i64 %polly.access.add.polly.subfunc.arg.A
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; IR: %tmp10_p_scalar_ = load float, ptr %polly.access.polly.subfunc.arg.A, align 4, !alias.scope !3, !noalias !6, !llvm.access.group !7
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; IR: %polly.access.mul.polly.subfunc.arg.A7 = mul nsw i64 %polly.indvar, %polly.subfunc.arg.m
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; IR: %7 = add nsw i64 %polly.indvar4, 43
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; IR: %polly.access.add.polly.subfunc.arg.A8 = add nsw i64 %polly.access.mul.polly.subfunc.arg.A7, %7
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; IR: %polly.access.polly.subfunc.arg.A9 = getelementptr float, ptr %polly.subfunc.arg.A, i64 %polly.access.add.polly.subfunc.arg.A8
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; IR: store float %p_tmp11, ptr %polly.access.polly.subfunc.arg.A9, align 4, !alias.scope !3, !noalias !6, !llvm.access.group !7
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @new_multidim_access(i64 %n, i64 %m, ptr %A) {
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bb:
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br label %bb1
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bb1: ; preds = %bb15, %bb
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%i.0 = phi i64 [ 0, %bb ], [ %tmp16, %bb15 ]
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%tmp = icmp slt i64 %i.0, %n
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br i1 %tmp, label %bb2, label %bb17
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bb2: ; preds = %bb1
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br label %bb3
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bb3: ; preds = %bb12, %bb2
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%j.0 = phi i64 [ 0, %bb2 ], [ %tmp13, %bb12 ]
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%exitcond = icmp ne i64 %j.0, 100
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br i1 %exitcond, label %bb4, label %bb14
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bb4: ; preds = %bb3
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%tmp5 = add nsw i64 %i.0, %j.0
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%tmp6 = sitofp i64 %tmp5 to float
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%tmp7 = shl nsw i64 %j.0, 1
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%tmp8 = mul nsw i64 %i.0, %m
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%.sum = add i64 %tmp8, %tmp7
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%tmp9 = getelementptr inbounds float, ptr %A, i64 %.sum
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%tmp10 = load float, ptr %tmp9, align 4
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%tmp11 = fadd float %tmp10, %tmp6
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store float %tmp11, ptr %tmp9, align 4
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br label %bb12
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bb12: ; preds = %bb4
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%tmp13 = add nsw i64 %j.0, 1
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br label %bb3
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bb14: ; preds = %bb3
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br label %bb15
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bb15: ; preds = %bb14
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%tmp16 = add nsw i64 %i.0, 1
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br label %bb1
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bb17: ; preds = %bb1
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ret void
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}
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