forked from OSchip/llvm-project
65 lines
2.6 KiB
LLVM
65 lines
2.6 KiB
LLVM
; RUN: opt %loadPolly -polly-detect -polly-allow-nonaffine-branches \
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; RUN: -polly-allow-nonaffine-loops=false \
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; RUN: -analyze < %s | FileCheck %s --check-prefix=REJECTNONAFFINELOOPS
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; RUN: opt %loadPolly -polly-detect -polly-allow-nonaffine-branches \
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; RUN: -polly-allow-nonaffine-loops=true \
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; RUN: -analyze < %s | FileCheck %s --check-prefix=ALLOWNONAFFINELOOPS
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; RUN: opt %loadPolly -polly-detect -polly-allow-nonaffine-branches \
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; RUN: -polly-allow-nonaffine-loops=false -polly-allow-nonaffine \
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; RUN: -analyze < %s | FileCheck %s \
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; RUN: --check-prefix=ALLOWNONAFFINEREGIONSANDACCESSES
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; RUN: opt %loadPolly -polly-detect -polly-allow-nonaffine-branches \
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; RUN: -polly-allow-nonaffine-loops=true -polly-allow-nonaffine \
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; RUN: -analyze < %s | FileCheck %s \
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; RUN: --check-prefix=ALLOWNONAFFINELOOPSANDACCESSES
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; RUN: opt %loadPolly -polly-process-unprofitable=false \
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; RUN: -polly-detect -polly-allow-nonaffine-branches \
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; RUN: -polly-allow-nonaffine-loops=true -polly-allow-nonaffine \
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; RUN: -analyze < %s | FileCheck %s \
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; RUN: --check-prefix=PROFIT
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;
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; This function/region does contain a loop, however it is non-affine, hence the access
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; A[i] is also. Furthermore, it is the only loop, thus when we over approximate
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; non-affine loops __and__ accesses __and__ allow regins without a (affine) loop we will
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; detect it, otherwise we won't.
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;
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; void f(int *A) {
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; for (int i = 0; i < A[i]; i++)
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; A[-1]++;
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; }
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;
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; REJECTNONAFFINELOOPS-NOT: Valid
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; ALLOWNONAFFINELOOPS-NOT: Valid
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; ALLOWNONAFFINEREGIONSANDACCESSES-NOT: Valid
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; ALLOWNONAFFINELOOPSANDACCESSES: Valid
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; PROFIT-NOT: Valid
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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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define void @f(i32* %A) {
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bb:
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br label %bb1
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bb1: ; preds = %bb9, %bb
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%indvars.iv = phi i64 [ %indvars.iv.next, %bb9 ], [ 0, %bb ]
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%tmp = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp2 = load i32, i32* %tmp, align 4
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%tmp3 = sext i32 %tmp2 to i64
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%tmp4 = icmp slt i64 %indvars.iv, %tmp3
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br i1 %tmp4, label %bb5, label %bb10
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bb5: ; preds = %bb1
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%tmp6 = getelementptr inbounds i32, i32* %A, i64 -1
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%tmp7 = load i32, i32* %tmp6, align 4
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%tmp8 = add nsw i32 %tmp7, 1
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store i32 %tmp8, i32* %tmp6, align 4
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br label %bb9
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bb9: ; preds = %bb5
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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br label %bb1
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bb10: ; preds = %bb1
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ret void
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}
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