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7d136d952e
Some Polly ACC test cases fail without a working NVPTX backend. We explicitly specify this dependence in REQUIRES. Alternatively, we could have only marked polly-acc as supported in case the NVPTX backend is available, but as we might use other backends in the future, this does not seem to be the best choice. For this to work, we also need to make the 'targets_to_build' information available. Suggested-by: Michael Kruse <llvm@meinersbur.de> llvm-svn: 296853
68 lines
2.2 KiB
LLVM
68 lines
2.2 KiB
LLVM
; RUN: opt %loadPolly -polly-codegen-ppcg -polly-acc-dump-kernel-ir \
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; RUN: -disable-output < %s | \
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; RUN: FileCheck -check-prefix=IR %s
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; REQUIRES: pollyacc,nvptx
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; void foo(long n, float A[][n]) {
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; for (long i = 0; i < 32; i++)
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; for (long j = 0; j < 32; j++)
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; A[i][j] += A[i + 1][j + 1];
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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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; This test case failed at some point as %n was only available in this kernel
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; when referenced through an isl_id in an isl ast expression, but not when
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; it was referenced from a SCEV or instruction that not part of any loop
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; bound.
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; IR: %polly.access.mul.MemRef_A6 = mul nsw i64 {{.*}}, %n
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define void @foo(i64 %n, float* %A) {
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bb:
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br label %bb2
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bb2: ; preds = %bb19, %bb
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%i.0 = phi i64 [ 0, %bb ], [ %tmp20, %bb19 ]
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%exitcond1 = icmp ne i64 %i.0, 32
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br i1 %exitcond1, label %bb3, label %bb21
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bb3: ; preds = %bb2
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br label %bb4
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bb4: ; preds = %bb16, %bb3
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%j.0 = phi i64 [ 0, %bb3 ], [ %tmp17, %bb16 ]
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%exitcond = icmp ne i64 %j.0, 32
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br i1 %exitcond, label %bb5, label %bb18
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bb5: ; preds = %bb4
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%tmp = add nuw nsw i64 %j.0, 1
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%tmp6 = add nuw nsw i64 %i.0, 1
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%tmp7 = mul nsw i64 %tmp6, %n
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%tmp8 = getelementptr inbounds float, float* %A, i64 %tmp7
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%tmp9 = getelementptr inbounds float, float* %tmp8, i64 %tmp
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%tmp10 = load float, float* %tmp9, align 4
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%tmp11 = mul nsw i64 %i.0, %n
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%tmp12 = getelementptr inbounds float, float* %A, i64 %tmp11
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%tmp13 = getelementptr inbounds float, float* %tmp12, i64 %j.0
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%tmp14 = load float, float* %tmp13, align 4
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%tmp15 = fadd float %tmp14, %tmp10
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store float %tmp15, float* %tmp13, align 4
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br label %bb16
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bb16: ; preds = %bb5
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%tmp17 = add nuw nsw i64 %j.0, 1
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br label %bb4
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bb18: ; preds = %bb4
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br label %bb19
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bb19: ; preds = %bb18
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%tmp20 = add nuw nsw i64 %i.0, 1
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br label %bb2
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bb21: ; preds = %bb2
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ret void
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}
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