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/LoopIdiom/ctpop-multiple-users-crash.ll b/llvm/test/Transforms/LoopIdiom/ctpop-multiple-users-crash.ll
deleted file mode 100644
index ddb7bdbe7d1..00000000000
--- a/llvm/test/Transforms/LoopIdiom/ctpop-multiple-users-crash.ll
+++ /dev/null
@@ -1,34 +0,0 @@
-; RUN: opt -loop-idiom -S < %s | FileCheck %s
-
-target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
-target triple = "arm64-apple-ios8.0.0"
-
-; When we replace the precondition with a ctpop, we need to ensure
-; that only the first branch reads the ctpop.  The store prior
-; to that should continue to read from the original compare.
-
-; CHECK: %tobool.5 = icmp ne i32 %num, 0
-; CHECK: store i1 %tobool.5, i1* %ptr
-
-define internal fastcc i32 @num_bits_set(i32 %num, i1* %ptr) #1 {
-entry:
-  %tobool.5 = icmp ne i32 %num, 0
-  store i1 %tobool.5, i1* %ptr
-  br i1 %tobool.5, label %for.body.lr.ph, label %for.end
-
-for.body.lr.ph:                                   ; preds = %entry
-  br label %for.body
-
-for.body:                                         ; preds = %for.body.lr.ph, %for.body
-  %count.07 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
-  %num.addr.06 = phi i32 [ %num, %for.body.lr.ph ], [ %and, %for.body ]
-  %sub = add i32 %num.addr.06, -1
-  %and = and i32 %sub, %num.addr.06
-  %inc = add nsw i32 %count.07, 1
-  %tobool = icmp ne i32 %and, 0
-  br i1 %tobool, label %for.body, label %for.end
-
-for.end:                                          ; preds = %for.cond.for.end_crit_edge, %entry
-  %count.0.lcssa = phi i32 [ %inc, %for.body ], [ 0, %entry ]
-  ret i32 %count.0.lcssa
-}
\ No newline at end of file