diff options
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Analysis/ScalarEvolution/trip-count-unknown-stride.ll | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/llvm/test/Analysis/ScalarEvolution/trip-count-unknown-stride.ll b/llvm/test/Analysis/ScalarEvolution/trip-count-unknown-stride.ll deleted file mode 100644 index 37e9b1a9e9e..00000000000 --- a/llvm/test/Analysis/ScalarEvolution/trip-count-unknown-stride.ll +++ /dev/null @@ -1,54 +0,0 @@ -; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s - -; ScalarEvolution should be able to compute trip count of the loop by proving -; that this is not an infinite loop with side effects. - -; CHECK: Determining loop execution counts for: @foo1 -; CHECK: backedge-taken count is ((-1 + %n) /u %s) - -target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128" - -; Function Attrs: norecurse nounwind -define void @foo1(i32* nocapture %A, i32 %n, i32 %s) #0 { -entry: - %cmp4 = icmp sgt i32 %n, 0 - br i1 %cmp4, label %for.body, label %for.end - -for.body: ; preds = %entry, %for.body - %i.05 = phi i32 [ %add, %for.body ], [ 0, %entry ] - %arrayidx = getelementptr inbounds i32, i32* %A, i32 %i.05 - %0 = load i32, i32* %arrayidx, align 4 - %inc = add nsw i32 %0, 1 - store i32 %inc, i32* %arrayidx, align 4 - %add = add nsw i32 %i.05, %s - %cmp = icmp slt i32 %add, %n - br i1 %cmp, label %for.body, label %for.end - -for.end: ; preds = %for.body, %entry - ret void -} - - -; Check that we are able to compute trip count of a loop without an entry guard. -; CHECK: Determining loop execution counts for: @foo2 -; CHECK: backedge-taken count is ((-1 + (%n smax %s)) /u %s) - -; Function Attrs: norecurse nounwind -define void @foo2(i32* nocapture %A, i32 %n, i32 %s) #0 { -entry: - br label %for.body - -for.body: ; preds = %entry, %for.body - %i.05 = phi i32 [ %add, %for.body ], [ 0, %entry ] - %arrayidx = getelementptr inbounds i32, i32* %A, i32 %i.05 - %0 = load i32, i32* %arrayidx, align 4 - %inc = add nsw i32 %0, 1 - store i32 %inc, i32* %arrayidx, align 4 - %add = add nsw i32 %i.05, %s - %cmp = icmp slt i32 %add, %n - br i1 %cmp, label %for.body, label %for.end - -for.end: ; preds = %for.body, %entry - ret void -} - |

