Temporarily Revert "Add basic loop fusion pass."

As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546

1 files changed, 0 insertions, 34 deletions

diff --git a/llvm/test/Transforms/LoopVectorize/infiniteloop.ll b/llvm/test/Transforms/LoopVectorize/infiniteloop.ll
deleted file mode 100644
index 5c5e1a3be0a..00000000000
--- a/llvm/test/Transforms/LoopVectorize/infiniteloop.ll
+++ /dev/null
@@ -1,34 +0,0 @@
-; RUN: opt -S -indvars -loop-vectorize -force-vector-width=2  < %s | FileCheck %s
-
-target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128"
-
-@a = common global i64 0, align 8
-@x = common global i32 0, align 4
-
-; We used to assert on this loop because we could not find an induction
-; variable but assumed there must be one. Scalar evolution returned a exit
-; count for the loop below and from there on we assumed that there must be an
-; induction variable. This is not a valid assumption:
-;   // getExitCount - Get the expression for the number of loop iterations for
-;   // which this loop is *guaranteed not to exit* via ExitingBlock. Otherwise
-;   // return SCEVCouldNotCompute.
-; For an infinite loop SE can return any number.
-
-; CHECK-LABEL: @fn1(
-define void @fn1()  {
-entry:
-  store i64 0, i64* @a, align 8
-  br label %for.body
-
-for.body:                                         ; preds = %for.body, %entry
-  %inc1 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
-  store volatile i32 0, i32* @x, align 4
-  %inc = add nsw i64 %inc1, 1
-  %cmp = icmp sgt i64 %inc1, -2
-  br i1 %cmp, label %for.body, label %for.end
-
-for.end:                                          ; preds = %for.body
-  %inc.lcssa = phi i64 [ %inc, %for.body ]
-  store i64 %inc.lcssa, i64* @a, align 8
-  ret void
-}