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, 38 deletions

diff --git a/llvm/test/Transforms/LoopVersioning/exit-block-dominates-rt-check-block.ll b/llvm/test/Transforms/LoopVersioning/exit-block-dominates-rt-check-block.ll
deleted file mode 100644
index 960c890516c..00000000000
--- a/llvm/test/Transforms/LoopVersioning/exit-block-dominates-rt-check-block.ll
+++ /dev/null
@@ -1,38 +0,0 @@
-; This test ensures loop versioning does not produce an invalid dominator tree
-; if the exit block of the loop (bb0) dominates the runtime check block
-; (bb1 will become the runtime check block).
-
-; RUN: opt -loop-distribute -enable-loop-distribute -verify-dom-info -S -o - %s > %t
-; RUN: opt -loop-simplify -loop-distribute -enable-loop-distribute -verify-dom-info -S -o - %s > %t
-; RUN: FileCheck --check-prefix CHECK-VERSIONING -input-file %t %s
-
-; RUN: opt -loop-versioning -verify-dom-info -S -o - %s > %t
-; RUN: opt -loop-simplify -loop-versioning -verify-dom-info -S -o - %s > %t
-; RUN: FileCheck --check-prefix CHECK-VERSIONING -input-file %t %s
-
-@c1 = external global i16
-
-define void @f(i16 %a) {
-  br label %bb0
-
-bb0:
-  br label %bb1
-
-bb1:
-  %tmp1 = load i16, i16* @c1
-  br label %bb2
-
-bb2:
-  %tmp2 = phi i16 [ %tmp1, %bb1 ], [ %tmp3, %bb2 ]
-  %tmp4 = getelementptr inbounds [1 x i32], [1 x i32]* undef, i32 0, i32 4
-  store i32 1, i32* %tmp4
-  %tmp5 = getelementptr inbounds [1 x i32], [1 x i32]* undef, i32 0, i32 9
-  store i32 0, i32* %tmp5
-  %tmp3 = add i16 %tmp2, 1
-  store i16 %tmp2, i16* @c1
-  %tmp6 = icmp sle i16 %tmp3, 0
-  br i1 %tmp6, label %bb2, label %bb0
-}
-
-; Simple check to make sure loop versioning happened.
-; CHECK-VERSIONING: bb2.lver.check: