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, 77 deletions

diff --git a/llvm/test/Transforms/LoopUnswitch/2015-06-17-Metadata.ll b/llvm/test/Transforms/LoopUnswitch/2015-06-17-Metadata.ll
deleted file mode 100644
index a215be9d487..00000000000
--- a/llvm/test/Transforms/LoopUnswitch/2015-06-17-Metadata.ll
+++ /dev/null
@@ -1,77 +0,0 @@
-;RUN: opt  -loop-unswitch -simplifycfg -S < %s | FileCheck %s
-
-define i32 @foo(i32 %a, i32 %b) {
-;CHECK-LABEL: foo
-entry:
-  br label %for.body.lr.ph
-
-for.body.lr.ph:                                   ; preds = %entry
-  %cmp0 = icmp sgt i32 %b, 0
-  br i1 %cmp0, label %for.body, label %for.cond.cleanup
-
-for.body:                                         ; preds = %for.inc, %for.body.lr.ph
-  %inc.i = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ]
-  %mul.i = phi i32 [ 3, %for.body.lr.ph ], [ %mul.p, %for.inc ]
-  %add.i = phi i32 [ %a, %for.body.lr.ph ], [ %add.p, %for.inc ]
-  %cmp1 = icmp eq i32 %a, 12345
-  br i1 %cmp1, label %if.then, label %if.else, !prof !0
-; CHECK: %cmp1 = icmp eq i32 %a, 12345
-; CHECK-NEXT: br i1 %cmp1, label %for.body.us, label %for.body, !prof !0
-if.then:                                          ; preds = %for.body
-; CHECK: for.body.us:
-; CHECK: add nsw i32 %{{.*}}, 123
-; CHECK: %exitcond.us = icmp eq i32 %inc.us, %b
-; CHECK: br i1 %exitcond.us, label %for.cond.cleanup, label %for.body.us
-  %add = add nsw i32 %add.i, 123
-  br label %for.inc
-
-if.else:                                          ; preds = %for.body
-  %mul = mul nsw i32 %mul.i, %b
-  br label %for.inc
-; CHECK: for.body:
-; CHECK: %mul = mul nsw i32 %mul.i, %b
-; CHECK: %inc = add nuw nsw i32 %inc.i, 1
-; CHECK: %exitcond = icmp eq i32 %inc, %b
-; CHECK: br i1 %exitcond, label %for.cond.cleanup, label %for.body
-for.inc:                                          ; preds = %if.then, %if.else
-  %mul.p = phi i32 [ %b, %if.then ], [ %mul, %if.else ]
-  %add.p = phi i32 [ %add, %if.then ], [ %a, %if.else ]
-  %inc = add nuw nsw i32 %inc.i, 1
-  %exitcond = icmp eq i32 %inc, %b
-  br i1 %exitcond, label %for.cond.cleanup, label %for.body
-
-for.cond.cleanup:                                 ; preds = %for.inc, %for.body.lr.ph
-  %t2 = phi i32 [ %b, %for.body.lr.ph ], [ %mul.p, %for.inc ]
-  %t1 = phi i32 [ %a, %for.body.lr.ph ], [ %add.p, %for.inc ]
-  %add3 = add nsw i32 %t2, %t1
-  ret i32 %add3
-}
-
-define void @foo_swapped(i32 %a, i32 %b) {
-;CHECK-LABEL: foo_swapped
-entry:
-  br label %for.body
-;CHECK: entry:
-;CHECK-NEXT: %cmp1 = icmp eq i32 1, 2
-;CHECK-NEXT: br i1 %cmp1, label %for.body, label %for.cond.cleanup.split, !prof !1
-;CHECK: for.body:
-for.body:                                         ; preds = %for.inc, %entry
-  %inc.i = phi i32 [ 0, %entry ], [ %inc, %if.then ]
-  %add.i = phi i32 [ 100, %entry ], [ %add, %if.then ]
-  %inc = add nuw nsw i32 %inc.i, 1
-  %cmp1 = icmp eq i32 1, 2
-  br i1 %cmp1, label %if.then, label  %for.cond.cleanup, !prof !0
-
-if.then:                                          ; preds = %for.body
-  %add = add nsw i32 %a, %add.i
-
-  %exitcond = icmp eq i32 %inc, %b
-  br i1 %exitcond, label %for.cond.cleanup, label %for.body
-
-for.cond.cleanup:                                 ; preds = %for.inc, %for.body.lr.ph, %for.body
-  ret void
-}
-!0 = !{!"branch_weights", i32 64, i32 4}
-
-;CHECK: !0 = !{!"branch_weights", i32 64, i32 4}
-;CHECK: !1 = !{!"branch_weights", i32 4, i32 64}