forked from OSchip/llvm-project
104 lines
4.0 KiB
LLVM
104 lines
4.0 KiB
LLVM
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; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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;
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; See http://research.microsoft.com/pubs/151917/divmodnote-letter.pdf
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;
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; void f(long *A) {
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; for (long i = 0; i < 10; i++) {
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; A[8 / 3] = A[8 % 3];
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; A[8 / -3] = A[8 % -3];
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; A[-8 / 3] = A[-8 % 3];
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; A[-8 / -3] = A[-8 % -3];
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; A[1 / 2] = A[1 % 2];
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; A[1 / -2] = A[1 % -2];
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; A[-1 / 2] = A[-1 % 2];
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; A[-1 / -2] = A[-1 % -2];
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; }
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; }
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;
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; CHECK: { Stmt_for_body[i0] -> MemRef_R[2] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_R[2] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_R[-2] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_R[-2] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_R[1] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_R[1] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_R[-1] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_R[-1] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_D[2] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_D[-2] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_D[-2] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_D[2] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_D[0] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_D[0] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_D[0] };
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; CHECK: { Stmt_for_body[i0] -> MemRef_D[0] };
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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(i64* %D, i64* %R) {
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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, 10
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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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%rem = srem i64 8, 3
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%arrayidx = getelementptr inbounds i64, i64* %R, i64 %rem
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%tmp = load i64, i64* %arrayidx, align 8
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%div = sdiv i64 8, 3
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%arrayidx1 = getelementptr inbounds i64, i64* %D, i64 %div
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store i64 %tmp, i64* %arrayidx1, align 8
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%rem2 = srem i64 8, -3
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%arrayidx3 = getelementptr inbounds i64, i64* %R, i64 %rem2
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%tmp1 = load i64, i64* %arrayidx3, align 8
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%div5 = sdiv i64 8, -3
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%arrayidx6 = getelementptr inbounds i64, i64* %D, i64 %div5
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store i64 %tmp1, i64* %arrayidx6, align 8
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%rem8 = srem i64 -8, 3
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%arrayidx9 = getelementptr inbounds i64, i64* %R, i64 %rem8
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%tmp2 = load i64, i64* %arrayidx9, align 8
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%div11 = sdiv i64 -8, 3
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%arrayidx12 = getelementptr inbounds i64, i64* %D, i64 %div11
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store i64 %tmp2, i64* %arrayidx12, align 8
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%rem15 = srem i64 -8, -3
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%arrayidx16 = getelementptr inbounds i64, i64* %R, i64 %rem15
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%tmp3 = load i64, i64* %arrayidx16, align 8
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%div19 = sdiv i64 -8, -3
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%arrayidx20 = getelementptr inbounds i64, i64* %D, i64 %div19
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store i64 %tmp3, i64* %arrayidx20, align 8
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%rem29 = srem i64 1, 2
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%arrayidx30 = getelementptr inbounds i64, i64* %R, i64 %rem29
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%tmp5 = load i64, i64* %arrayidx30, align 8
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%div31 = sdiv i64 1, 2
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%arrayidx32 = getelementptr inbounds i64, i64* %D, i64 %div31
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store i64 %tmp5, i64* %arrayidx32, align 8
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%rem34 = srem i64 1, -2
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%arrayidx35 = getelementptr inbounds i64, i64* %R, i64 %rem34
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%tmp6 = load i64, i64* %arrayidx35, align 8
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%div37 = sdiv i64 1, -2
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%arrayidx38 = getelementptr inbounds i64, i64* %D, i64 %div37
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store i64 %tmp6, i64* %arrayidx38, align 8
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%rem40 = srem i64 -1, 2
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%arrayidx41 = getelementptr inbounds i64, i64* %R, i64 %rem40
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%tmp7 = load i64, i64* %arrayidx41, align 8
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%div43 = sdiv i64 -1, 2
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%arrayidx44 = getelementptr inbounds i64, i64* %D, i64 %div43
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store i64 %tmp7, i64* %arrayidx44, align 8
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%rem47 = srem i64 -1, -2
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%arrayidx48 = getelementptr inbounds i64, i64* %R, i64 %rem47
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%tmp8 = load i64, i64* %arrayidx48, align 8
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%div51 = sdiv i64 -1, -2
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%arrayidx52 = getelementptr inbounds i64, i64* %D, i64 %div51
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store i64 %tmp8, i64* %arrayidx52, align 8
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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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