forked from OSchip/llvm-project
48 lines
1.4 KiB
LLVM
48 lines
1.4 KiB
LLVM
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; RUN: opt %loadPolly -polly-detect -polly-allow-nonaffine-loops -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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; while (A[i])
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; A[i]--;
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; }
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; }
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;
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; CHECK: Valid Region for Scop: bb1 => bb12
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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 = %bb11, %bb
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%indvars.iv = phi i64 [ %indvars.iv.next, %bb11 ], [ 0, %bb ]
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%exitcond = icmp ne i64 %indvars.iv, 1024
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br i1 %exitcond, label %bb2, label %bb12
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bb2: ; preds = %bb1
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br label %bb3
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bb3: ; preds = %bb6, %bb2
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%tmp = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp4 = load i32, i32* %tmp, align 4
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%tmp5 = icmp eq i32 %tmp4, 0
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br i1 %tmp5, label %bb10, label %bb6
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bb6: ; preds = %bb3
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%tmp7 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp8 = load i32, i32* %tmp7, align 4
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%tmp9 = add nsw i32 %tmp8, -1
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store i32 %tmp9, i32* %tmp7, align 4
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br label %bb3
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bb10: ; preds = %bb3
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br label %bb11
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bb11: ; preds = %bb10
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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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bb12: ; preds = %bb1
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ret void
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}
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