forked from OSchip/llvm-project
74 lines
2.4 KiB
LLVM
74 lines
2.4 KiB
LLVM
; RUN: opt %loadPolly -polly-detect-unprofitable -polly-allow-nonaffine -polly-no-early-exit -S < %s | FileCheck %s --check-prefix=CODE
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; RUN: opt %loadPolly -polly-detect-unprofitable -polly-allow-nonaffine -polly-no-early-exit -polly-scops -analyze < %s | FileCheck %s
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;
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; Verify there is a phi in the non-affine region but it is not represented in
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; the SCoP as all operands as well as the uses are inside the region too.
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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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; int x = 0;
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; if (i > 512)
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; x = 1 + A[i];
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; A[i] = x;
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; }
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; }
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; }
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;
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; CODE-LABEL: bb11:
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; CODE: %x.0 = phi i32
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;
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; We have 3 accesses to A that should be present in the SCoP but no scalar access.
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;
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; CHECK-NOT: [Scalar: 1]
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; CHECK: [Scalar: 0]
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; CHECK-NOT: [Scalar: 1]
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; CHECK: [Scalar: 0]
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; CHECK-NOT: [Scalar: 1]
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; CHECK: [Scalar: 0]
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; CHECK-NOT: [Scalar: 1]
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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) {
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bb:
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br label %bb1
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bb1: ; preds = %bb14, %bb
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%indvars.iv = phi i64 [ %indvars.iv.next, %bb14 ], [ 0, %bb ]
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%exitcond = icmp ne i64 %indvars.iv, 1024
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br i1 %exitcond, label %bb2, label %bb15
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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 %bb13, label %bb5
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bb5: ; preds = %bb2
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%tmp6 = icmp sgt i64 %indvars.iv, 512
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br i1 %tmp6, label %bb7, label %bb11
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bb7: ; preds = %bb5
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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, 1
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br label %bb11
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bb11: ; preds = %bb7, %bb5
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%x.0 = phi i32 [ %tmp10, %bb7 ], [ 0, %bb5 ]
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%tmp12 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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store i32 %x.0, i32* %tmp12, align 4
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br label %bb13
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bb13: ; preds = %bb2, %bb11
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br label %bb14
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bb14: ; preds = %bb13
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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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bb15: ; preds = %bb1
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ret void
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}
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