diff options
Diffstat (limited to 'llvm/test/Transforms/LoopUnroll/peel-loop-scev-invalidate.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopUnroll/peel-loop-scev-invalidate.ll | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopUnroll/peel-loop-scev-invalidate.ll b/llvm/test/Transforms/LoopUnroll/peel-loop-scev-invalidate.ll new file mode 100644 index 00000000000..c44da31cebd --- /dev/null +++ b/llvm/test/Transforms/LoopUnroll/peel-loop-scev-invalidate.ll @@ -0,0 +1,42 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt < %s -S -loop-unroll -unroll-force-peel-count=1 -verify-scev -verify-dom-info | FileCheck %s + + +define void @test1(i32 %k) { +; CHECK-LABEL: @test1( +; CHECK-NEXT: entry: +; CHECK-NEXT: br label [[FOR_BODY_PEEL_BEGIN:%.*]] +; CHECK: for.body.peel.begin: +; CHECK-NEXT: br label [[FOR_BODY_PEEL:%.*]] +; CHECK: for.body.peel: +; CHECK-NEXT: [[INC_PEEL:%.*]] = add nsw i32 0, 1 +; CHECK-NEXT: [[CMP_PEEL:%.*]] = icmp ult i32 0, [[K:%.*]] +; CHECK-NEXT: br i1 [[CMP_PEEL]], label [[FOR_BODY_PEEL_NEXT:%.*]], label [[FOR_END:%.*]] +; CHECK: for.body.peel.next: +; CHECK-NEXT: br label [[FOR_BODY_PEEL_NEXT1:%.*]] +; CHECK: for.body.peel.next1: +; CHECK-NEXT: br label [[ENTRY_PEEL_NEWPH:%.*]] +; CHECK: entry.peel.newph: +; CHECK-NEXT: br label [[FOR_BODY:%.*]] +; CHECK: for.body: +; CHECK-NEXT: [[I_05:%.*]] = phi i32 [ [[INC_PEEL]], [[ENTRY_PEEL_NEWPH]] ], [ [[INC:%.*]], [[FOR_BODY]] ] +; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_05]], 1 +; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[I_05]], [[K]] +; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]], !llvm.loop !0 +; CHECK: for.end.loopexit: +; CHECK-NEXT: br label [[FOR_END]] +; CHECK: for.end: +; CHECK-NEXT: ret void +; +entry: + br label %for.body + +for.body: + %i.05 = phi i32 [ 0, %entry ], [ %inc, %for.body ] + %inc = add nsw i32 %i.05, 1 + %cmp = icmp ult i32 %i.05, %k + br i1 %cmp, label %for.body, label %for.end + +for.end: + ret void +} |
