forked from OSchip/llvm-project
43 lines
1.2 KiB
LLVM
43 lines
1.2 KiB
LLVM
; RUN: opt %loadPolly -S -polly-codegen \
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; RUN: < %s | FileCheck %s
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;
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; Check that this will not crash our code generation.
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;
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; CHECK: polly.start:
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;
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; void f(int *A, int N) {
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; for (int i = 0; i < N / 4; i++)
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; A[i] += A[i - 1];
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; }
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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, i32 %N) {
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bb:
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%tmp = sdiv i32 %N, 4
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%tmp2 = sext i32 %tmp to i64
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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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%tmp3 = icmp slt i64 %indvars.iv, %tmp2
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br i1 %tmp3, label %bb4, label %bb12
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bb4: ; preds = %bb1
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%tmp5 = add nsw i64 %indvars.iv, -1
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%tmp6 = getelementptr inbounds i32, i32* %A, i64 %tmp5
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%tmp7 = load i32, i32* %tmp6, align 4
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%tmp8 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp9 = load i32, i32* %tmp8, align 4
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%tmp10 = add nsw i32 %tmp9, %tmp7
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store i32 %tmp10, i32* %tmp8, align 4
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br label %bb11
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bb11: ; preds = %bb4
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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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