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-rw-r--r--llvm/test/Transforms/LoopUnroll/tripcount-overflow.ll49
1 files changed, 0 insertions, 49 deletions
diff --git a/llvm/test/Transforms/LoopUnroll/tripcount-overflow.ll b/llvm/test/Transforms/LoopUnroll/tripcount-overflow.ll
deleted file mode 100644
index 0d5681b539a..00000000000
--- a/llvm/test/Transforms/LoopUnroll/tripcount-overflow.ll
+++ /dev/null
@@ -1,49 +0,0 @@
-; RUN: opt < %s -S -unroll-runtime -unroll-count=2 -loop-unroll -unroll-runtime-epilog=true | FileCheck %s -check-prefix=EPILOG
-; RUN: opt < %s -S -unroll-runtime -unroll-count=2 -loop-unroll -unroll-runtime-epilog=false | FileCheck %s -check-prefix=PROLOG
-target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
-
-; This test case documents how runtime loop unrolling handles the case
-; when the backedge-count is -1.
-
-; If %N, the backedge-taken count, is -1 then %0 unsigned-overflows
-; and is 0. %xtraiter too is 0, signifying that the total trip-count
-; is divisible by 2. The prologue then branches to the unrolled loop
-; and executes the 2^32 iterations there, in groups of 2.
-
-; EPILOG: entry:
-
-; EPILOG-NEXT: %0 = add i32 %N, 1
-; EPILOG-NEXT: %xtraiter = and i32 %0, 1
-; EPILOG-NEXT: %1 = icmp ult i32 %N, 1
-; EPILOG-NEXT: br i1 %1, label %while.end.unr-lcssa, label %entry.new
-; EPILOG: while.body:
-
-; EPILOG: %lcmp.mod = icmp ne i32 %xtraiter, 0
-; EPILOG-NEXT: br i1 %lcmp.mod, label %while.body.epil.preheader, label %while.end
-; EPILOG: while.body.epil:
-
-; PROLOG: entry:
-; PROLOG-NEXT: %0 = add i32 %N, 1
-; PROLOG-NEXT: %xtraiter = and i32 %0, 1
-; PROLOG-NEXT: %lcmp.mod = icmp ne i32 %xtraiter, 0
-; PROLOG-NEXT: br i1 %lcmp.mod, label %while.body.prol.preheader, label %while.body.prol.loopexit
-; PROLOG: while.body.prol:
-
-; PROLOG: %1 = icmp ult i32 %N, 1
-; PROLOG-NEXT: br i1 %1, label %while.end, label %entry.new
-; PROLOG: while.body:
-
-; Function Attrs: nounwind readnone ssp uwtable
-define i32 @foo(i32 %N) {
-entry:
- br label %while.body
-
-while.body: ; preds = %while.body, %entry
- %i = phi i32 [ 0, %entry ], [ %inc, %while.body ]
- %cmp = icmp eq i32 %i, %N
- %inc = add i32 %i, 1
- br i1 %cmp, label %while.end, label %while.body
-
-while.end: ; preds = %while.body
- ret i32 %i
-}
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