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, 33 deletions

diff --git a/llvm/test/Transforms/IndVarSimplify/const_phi.ll b/llvm/test/Transforms/IndVarSimplify/const_phi.ll
deleted file mode 100644
index 33dc5514d3c..00000000000
--- a/llvm/test/Transforms/IndVarSimplify/const_phi.ll
+++ /dev/null
@@ -1,33 +0,0 @@
-; RUN: opt < %s -indvars -S | FileCheck %s
-
-target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
-
-; PR25372
-; We can compute the expression of %phi0 and that is a SCEV
-; constant. However, instcombine can't deduce this, so we can
-; potentially end up trying to handle a constant when replacing
-; congruent IVs.
-
-; CHECK-LABEL: crash
-define void @crash() {
-entry:
-  br i1 false, label %not_taken, label %pre
-
-not_taken:
-  br label %pre
-
-pre:
-; %phi0.pre and %phi1.pre are evaluated by SCEV to constant 0.
-  %phi0.pre = phi i32 [ 0, %entry ], [ 2, %not_taken ]
-  %phi1.pre = phi i32 [ 0, %entry ], [ 1, %not_taken ]
-  br label %loop
-
-loop:
-; %phi0 and %phi1 are evaluated by SCEV to constant 0.
-  %phi0 = phi i32 [ 0, %loop ], [ %phi0.pre, %pre ]
-  %phi1 = phi i32 [ 0, %loop ], [ %phi1.pre, %pre ]
-  br i1 undef, label %exit, label %loop
-
-exit:
-  ret void
-}