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, 36 deletions

diff --git a/llvm/test/Transforms/LoopSimplifyCFG/merge-header.ll b/llvm/test/Transforms/LoopSimplifyCFG/merge-header.ll
deleted file mode 100644
index 91bc44baef9..00000000000
--- a/llvm/test/Transforms/LoopSimplifyCFG/merge-header.ll
+++ /dev/null
@@ -1,36 +0,0 @@
-; RUN: opt -S -loop-simplifycfg < %s | FileCheck %s
-; RUN: opt -S -passes='require<domtree>,loop(simplify-cfg)' < %s | FileCheck %s
-; RUN: opt -S -loop-simplifycfg -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s
-
-; CHECK-LABEL: foo
-; CHECK:      entry:
-; CHECK-NEXT:   br label %[[LOOP:[a-z]+]]
-; CHECK:      [[LOOP]]:
-; CHECK-NEXT:   phi
-; CHECK-NOT:    br label
-; CHECK:        br i1
-define i32 @foo(i32* %P, i64* %Q) {
-entry:
-  br label %outer
-
-outer:                                            ; preds = %outer.latch2, %entry
-  %y.2 = phi i32 [ 0, %entry ], [ %y.inc2, %outer.latch2 ]
-  br label %inner
-
-inner:                                            ; preds = %outer
-  store i32 0, i32* %P
-  store i32 1, i32* %P
-  store i32 2, i32* %P
-  %y.inc2 = add nsw i32 %y.2, 1
-  %exitcond.outer = icmp eq i32 %y.inc2, 3
-  store i32 %y.2, i32* %P
-  br i1 %exitcond.outer, label %exit, label %outer.latch2
-
-outer.latch2:                                     ; preds = %inner
-  %t = sext i32 %y.inc2 to i64
-  store i64 %t, i64* %Q
-  br label %outer
-
-exit:                                             ; preds = %inner
-  ret i32 0
-}