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, 167 deletions

diff --git a/llvm/test/Transforms/LoopInterchange/interchangeable.ll b/llvm/test/Transforms/LoopInterchange/interchangeable.ll
deleted file mode 100644
index a97981c5128..00000000000
--- a/llvm/test/Transforms/LoopInterchange/interchangeable.ll
+++ /dev/null
@@ -1,167 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -basicaa -loop-interchange -verify-dom-info -verify-loop-info -verify-scev -verify-loop-lcssa -S | FileCheck %s
-
-target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-unknown-linux-gnu"
-
-@A = common global [100 x [100 x i64]] zeroinitializer
-@B = common global [100 x i64] zeroinitializer
-
-;;  for(int i=0;i<100;i++)
-;;    for(int j=0;j<100;j++)
-;;      A[j][i] = A[j][i]+k;
-
-define void @interchange_01(i64 %k, i64 %N) {
-; CHECK-LABEL: @interchange_01(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    br label [[FOR2_PREHEADER:%.*]]
-; CHECK:       for1.header.preheader:
-; CHECK-NEXT:    br label [[FOR1_HEADER:%.*]]
-; CHECK:       for1.header:
-; CHECK-NEXT:    [[INDVARS_IV23:%.*]] = phi i64 [ [[INDVARS_IV_NEXT24:%.*]], [[FOR1_INC10:%.*]] ], [ 0, [[FOR1_HEADER_PREHEADER:%.*]] ]
-; CHECK-NEXT:    br label [[FOR2_SPLIT1:%.*]]
-; CHECK:       for2.preheader:
-; CHECK-NEXT:    br label [[FOR2:%.*]]
-; CHECK:       for2:
-; CHECK-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR2_SPLIT:%.*]] ], [ 0, [[FOR2_PREHEADER]] ]
-; CHECK-NEXT:    br label [[FOR1_HEADER_PREHEADER]]
-; CHECK:       for2.split1:
-; CHECK-NEXT:    [[ARRAYIDX5:%.*]] = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* @A, i64 0, i64 [[INDVARS_IV]], i64 [[INDVARS_IV23]]
-; CHECK-NEXT:    [[LV:%.*]] = load i64, i64* [[ARRAYIDX5]]
-; CHECK-NEXT:    [[ADD:%.*]] = add nsw i64 [[LV]], [[K:%.*]]
-; CHECK-NEXT:    store i64 [[ADD]], i64* [[ARRAYIDX5]]
-; CHECK-NEXT:    br label [[FOR1_INC10]]
-; CHECK:       for2.split:
-; CHECK-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
-; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV]], 99
-; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR_END12:%.*]], label [[FOR2]]
-; CHECK:       for1.inc10:
-; CHECK-NEXT:    [[INDVARS_IV_NEXT24]] = add nuw nsw i64 [[INDVARS_IV23]], 1
-; CHECK-NEXT:    [[EXITCOND26:%.*]] = icmp eq i64 [[INDVARS_IV23]], 99
-; CHECK-NEXT:    br i1 [[EXITCOND26]], label [[FOR2_SPLIT]], label [[FOR1_HEADER]]
-; CHECK:       for.end12:
-; CHECK-NEXT:    ret void
-;
-entry:
-  br label %for1.header
-
-for1.header:
-  %j23 = phi i64 [ 0, %entry ], [ %j.next24, %for1.inc10 ]
-  br label %for2
-
-for2:
-  %j = phi i64 [ %j.next, %for2 ], [ 0, %for1.header ]
-  %arrayidx5 = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* @A, i64 0, i64 %j, i64 %j23
-  %lv = load i64, i64* %arrayidx5
-  %add = add nsw i64 %lv, %k
-  store i64 %add, i64* %arrayidx5
-  %j.next = add nuw nsw i64 %j, 1
-  %exitcond = icmp eq i64 %j, 99
-  br i1 %exitcond, label %for1.inc10, label %for2
-
-for1.inc10:
-  %j.next24 = add nuw nsw i64 %j23, 1
-  %exitcond26 = icmp eq i64 %j23, 99
-  br i1 %exitcond26, label %for.end12, label %for1.header
-
-for.end12:
-  ret void
-}
-
-;; for(int i=0;i<100;i++)
-;;   for(int j=100;j>=0;j--)
-;;     A[j][i] = A[j][i]+k;
-
-define void @interchange_02(i64 %k) {
-; CHECK-LABEL: @interchange_02(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    br label [[FOR3_PREHEADER:%.*]]
-; CHECK:       for1.header.preheader:
-; CHECK-NEXT:    br label [[FOR1_HEADER:%.*]]
-; CHECK:       for1.header:
-; CHECK-NEXT:    [[INDVARS_IV19:%.*]] = phi i64 [ [[INDVARS_IV_NEXT20:%.*]], [[FOR1_INC10:%.*]] ], [ 0, [[FOR1_HEADER_PREHEADER:%.*]] ]
-; CHECK-NEXT:    br label [[FOR3_SPLIT1:%.*]]
-; CHECK:       for3.preheader:
-; CHECK-NEXT:    br label [[FOR3:%.*]]
-; CHECK:       for3:
-; CHECK-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR3_SPLIT:%.*]] ], [ 100, [[FOR3_PREHEADER]] ]
-; CHECK-NEXT:    br label [[FOR1_HEADER_PREHEADER]]
-; CHECK:       for3.split1:
-; CHECK-NEXT:    [[ARRAYIDX5:%.*]] = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* @A, i64 0, i64 [[INDVARS_IV]], i64 [[INDVARS_IV19]]
-; CHECK-NEXT:    [[TMP0:%.*]] = load i64, i64* [[ARRAYIDX5]]
-; CHECK-NEXT:    [[ADD:%.*]] = add nsw i64 [[TMP0]], [[K:%.*]]
-; CHECK-NEXT:    store i64 [[ADD]], i64* [[ARRAYIDX5]]
-; CHECK-NEXT:    br label [[FOR1_INC10]]
-; CHECK:       for3.split:
-; CHECK-NEXT:    [[INDVARS_IV_NEXT]] = add nsw i64 [[INDVARS_IV]], -1
-; CHECK-NEXT:    [[CMP2:%.*]] = icmp sgt i64 [[INDVARS_IV]], 0
-; CHECK-NEXT:    br i1 [[CMP2]], label [[FOR3]], label [[FOR_END11:%.*]]
-; CHECK:       for1.inc10:
-; CHECK-NEXT:    [[INDVARS_IV_NEXT20]] = add nuw nsw i64 [[INDVARS_IV19]], 1
-; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT20]], 100
-; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR3_SPLIT]], label [[FOR1_HEADER]]
-; CHECK:       for.end11:
-; CHECK-NEXT:    ret void
-;
-entry:
-  br label %for1.header
-
-for1.header:
-  %j19 = phi i64 [ 0, %entry ], [ %j.next20, %for1.inc10 ]
-  br label %for3
-
-for3:
-  %j = phi i64 [ 100, %for1.header ], [ %j.next, %for3 ]
-  %arrayidx5 = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* @A, i64 0, i64 %j, i64 %j19
-  %0 = load i64, i64* %arrayidx5
-  %add = add nsw i64 %0, %k
-  store i64 %add, i64* %arrayidx5
-  %j.next = add nsw i64 %j, -1
-  %cmp2 = icmp sgt i64 %j, 0
-  br i1 %cmp2, label %for3, label %for1.inc10
-
-for1.inc10:
-  %j.next20 = add nuw nsw i64 %j19, 1
-  %exitcond = icmp eq i64 %j.next20, 100
-  br i1 %exitcond, label %for.end11, label %for1.header
-
-for.end11:
-  ret void
-}
-
-;; Test to make sure we can handle output dependencies.
-;;
-;;  for (int i = 1; i < 100; ++i)
-;;    for(int j = 1; j < 99; ++j) {
-;;      A[j][i] = i;
-;;      A[j][i+1] = j;
-;;    }
-;; FIXME: DA misses this case after D35430
-
-define void @interchange_10() {
-entry:
-  br label %for1.header
-
-for1.header:
-  %j23 = phi i64 [ 1, %entry ], [ %j.next24, %for1.inc10 ]
-  %j.next24 = add nuw nsw i64 %j23, 1
-  br label %for2
-
-for2:
-  %j = phi i64 [ %j.next, %for2 ], [ 1, %for1.header ]
-  %j.next = add nuw nsw i64 %j, 1
-  %arrayidx5 = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* @A, i64 0, i64 %j, i64 %j23
-  store i64 %j, i64* %arrayidx5
-  %arrayidx10 = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* @A, i64 0, i64 %j, i64 %j.next24
-  store i64 %j23, i64* %arrayidx10
-  %exitcond = icmp eq i64 %j, 99
-  br i1 %exitcond, label %for1.inc10, label %for2
-
-for1.inc10:
-  %exitcond26 = icmp eq i64 %j23, 98
-  br i1 %exitcond26, label %for.end12, label %for1.header
-
-for.end12:
-  ret void
-
-}