forked from OSchip/llvm-project
72 lines
2.6 KiB
LLVM
72 lines
2.6 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -polly-allow-nonaffine-branches \
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; RUN: -analyze < %s | FileCheck %s
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;
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; void f(int *A) {
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; for (int i = 0; i < 1024; i++)
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; if (A[i])
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; if (A[i - 1])
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; A[i] = A[i - 2];
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; }
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;
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; CHECK: Region: %bb1---%bb18
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; CHECK: Max Loop Depth: 1
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; CHECK: Statements {
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; CHECK: Stmt_bb2__TO__bb16
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; CHECK: Schedule :=
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; CHECK: { Stmt_bb2__TO__bb16[i0] -> [i0] };
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; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK: { Stmt_bb2__TO__bb16[i0] -> MemRef_A[i0] };
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; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK: { Stmt_bb2__TO__bb16[i0] -> MemRef_A[-1 + i0] };
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; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK: { Stmt_bb2__TO__bb16[i0] -> MemRef_A[-2 + i0] };
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; CHECK: MayWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK: { Stmt_bb2__TO__bb16[i0] -> MemRef_A[i0] };
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; CHECK: }
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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 = %bb17, %bb
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%indvars.iv = phi i64 [ %indvars.iv.next, %bb17 ], [ 0, %bb ]
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%exitcond = icmp ne i64 %indvars.iv, 1024
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br i1 %exitcond, label %bb2, label %bb18
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bb2: ; preds = %bb1
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%tmp = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp3 = load i32, i32* %tmp, align 4
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%tmp4 = icmp eq i32 %tmp3, 0
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br i1 %tmp4, label %bb16, label %bb5
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bb5: ; preds = %bb2
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%tmp6 = add nsw i64 %indvars.iv, -1
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%tmp7 = getelementptr inbounds i32, i32* %A, i64 %tmp6
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%tmp8 = load i32, i32* %tmp7, align 4
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%tmp9 = icmp eq i32 %tmp8, 0
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br i1 %tmp9, label %bb15, label %bb10
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bb10: ; preds = %bb5
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%tmp11 = add nsw i64 %indvars.iv, -2
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%tmp12 = getelementptr inbounds i32, i32* %A, i64 %tmp11
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%tmp13 = load i32, i32* %tmp12, align 4
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%tmp14 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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store i32 %tmp13, i32* %tmp14, align 4
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br label %bb15
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bb15: ; preds = %bb5, %bb10
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br label %bb16
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bb16: ; preds = %bb2, %bb15
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br label %bb17
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bb17: ; preds = %bb16
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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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bb18: ; preds = %bb1
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ret void
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}
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