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, 29 deletions

diff --git a/llvm/test/Transforms/SimplifyCFG/PhiBlockMerge.ll b/llvm/test/Transforms/SimplifyCFG/PhiBlockMerge.ll
deleted file mode 100644
index 85b98706018..00000000000
--- a/llvm/test/Transforms/SimplifyCFG/PhiBlockMerge.ll
+++ /dev/null
@@ -1,29 +0,0 @@
-; NOTE: Assertions have been autogenerated by update_test_checks.py
-; Test merging of blocks that only have PHI nodes in them
-;
-; RUN: opt < %s -simplifycfg -S | FileCheck %s
-;
-
-define i32 @test(i1 %a, i1 %b) {
-; CHECK-LABEL: @test(
-; CHECK:       M:
-; CHECK-NEXT:    [[DOT:%.*]] = select i1 %b, i32 0, i32 1
-; CHECK-NEXT:    [[W:%.*]] = select i1 %a, i32 2, i32 [[DOT]]
-; CHECK-NEXT:    [[R:%.*]] = add i32 [[W]], 1
-; CHECK-NEXT:    ret i32 [[R]]
-;
-  br i1 %a, label %M, label %O
-O:              ; preds = %0
-  br i1 %b, label %N, label %Q
-Q:              ; preds = %O
-  br label %N
-N:              ; preds = %Q, %O
-  ; This block should be foldable into M
-  %Wp = phi i32 [ 0, %O ], [ 1, %Q ]              ; <i32> [#uses=1]
-  br label %M
-M:              ; preds = %N, %0
-  %W = phi i32 [ %Wp, %N ], [ 2, %0 ]             ; <i32> [#uses=1]
-  %R = add i32 %W, 1              ; <i32> [#uses=1]
-  ret i32 %R
-}
-