derek.holloway
7502bf64a4
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45 lines
1.4 KiB
LLVM
45 lines
1.4 KiB
LLVM
; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<simplify>' -polly-print-scops -polly-print-simplify -disable-output < %s 2>&1 | FileCheck %s
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;
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; %tmp5 must keep the Value WRITE MemoryAccess, because as an incoming value of
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; %tmp4, it is an "external use".
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;
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; A common mistake is to assume that %tmp5 is used by %tmp4 in bb3, when
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; practically it's the incoming block %bb9 which is the user.
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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 @hoge() {
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bb:
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br label %bb2
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bb2: ; preds = %bb
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%tmp = load ptr, ptr undef
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br label %bb3
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bb3: ; preds = %bb9, %bb2
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%tmp4 = phi ptr [ %tmp, %bb2 ], [ %tmp5, %bb9 ]
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%tmp5 = getelementptr inbounds i64, ptr %tmp4, i64 1
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%tmp6 = load i64, ptr %tmp5
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%tmp7 = and i64 %tmp6, 4160749568
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br i1 false, label %bb8, label %bb9
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bb8: ; preds = %bb3
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br label %bb9
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bb9: ; preds = %bb8, %bb3
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%tmp10 = icmp eq i64 %tmp7, 134217728
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br i1 %tmp10, label %bb11, label %bb3
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bb11: ; preds = %bb9
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br label %bb12
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bb12: ; preds = %bb11
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ret void
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}
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; CHECK: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: [p_0] -> { Stmt_bb3[] -> MemRef_tmp5[] };
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; CHECK: SCoP could not be simplified
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