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, 74 deletions

diff --git a/llvm/test/Transforms/LoopUnroll/runtime-unroll-remainder.ll b/llvm/test/Transforms/LoopUnroll/runtime-unroll-remainder.ll
deleted file mode 100644
index b85e09bc3bc..00000000000
--- a/llvm/test/Transforms/LoopUnroll/runtime-unroll-remainder.ll
+++ /dev/null
@@ -1,74 +0,0 @@
-; RUN: opt < %s -S -loop-unroll -unroll-runtime=true -unroll-count=4 -unroll-remainder -instcombine | FileCheck %s
-
-; CHECK-LABEL: unroll
-define i32 @unroll(i32* nocapture readonly %a, i32* nocapture readonly %b, i32 %N) local_unnamed_addr #0 {
-entry:
-  %cmp9 = icmp eq i32 %N, 0
-  br i1 %cmp9, label %for.cond.cleanup, label %for.body.lr.ph
-
-for.body.lr.ph:
-  %wide.trip.count = zext i32 %N to i64
-  br label %for.body
-
-for.cond.cleanup:
-  %c.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]
-  ret i32 %c.0.lcssa
-
-; CHECK-LABEL: for.body.lr.ph
-; CHECK: [[COUNT:%[a-z.0-9]+]] = add nsw i64 %wide.trip.count, -1
-; CHECK: %xtraiter = and i64 %wide.trip.count, 3
-; CHECK: [[CMP:%[a-z.0-9]+]] = icmp ult i64 [[COUNT]], 3
-; CHECK: br i1 [[CMP]], label %[[CLEANUP:.*]], label %for.body.lr.ph.new
-
-; CHECK-LABEL: for.body.lr.ph.new:
-; CHECK: %unroll_iter = sub nsw i64 %wide.trip.count, %xtraiter
-; CHECK: br label %for.body
-
-; CHECK: [[CLEANUP]]:
-; CHECK: [[MOD:%[a-z.0-9]+]] = icmp eq i64 %xtraiter, 0
-; CHECK: br i1 [[MOD]], label %[[EXIT:.*]], label %[[EPIL_PEEL0_PRE:.*]]
-
-; CHECK: [[EPIL_PEEL0_PRE]]:
-; CHECK: br label %[[EPIL_PEEL0:.*]]
-
-; CHECK: [[EPIL_PEEL0]]:
-; CHECK: [[PEEL_CMP0:%[a-z.0-9]+]] = icmp eq i64 %xtraiter, 1
-; CHECK: br i1 [[PEEL_CMP0]], label %[[EPIL_EXIT:.*]], label %[[EPIL_PEEL1:.*]]
-
-; CHECK: [[EPIL_EXIT]]:
-; CHECK: br label %[[EXIT]]
-
-; CHECK: [[EXIT]]:
-; CHECK: ret i32
-
-; CHECK-LABEL: for.body:
-; CHECK: [[INDVAR0:%[a-z.0-9]+]] = phi i64 [ 0, %for.body.lr.ph
-; CHECK: [[ITER:%[a-z.0-9]+]] = phi i64 [ %unroll_iter
-; CHECK: or i64 [[INDVAR0]], 1
-; CHECK: or i64 [[INDVAR0]], 2
-; CHECK: or i64 [[INDVAR0]], 3
-; CHECK: add nuw nsw i64 [[INDVAR0]], 4
-; CHECK: [[SUB:%[a-z.0-9]+]] = add i64 [[ITER]], -4
-; CHECK: [[ITER_CMP:%[a-z.0-9]+]] = icmp eq i64 [[SUB]], 0
-; CHECK: br i1 [[ITER_CMP]], label %[[LOOP_EXIT:.*]], label %for.body
-
-; CHECK: [[EPIL_PEEL1]]:
-; CHECK: [[PEEL_CMP1:%[a-z.0-9]+]] = icmp eq i64 %xtraiter, 2
-; CHECK: br i1 [[PEEL_CMP1]], label %[[EPIL_EXIT]], label %[[EPIL_PEEL2:.*]]
-
-; CHECK: [[EPIL_PEEL2]]:
-; CHECK: br label %[[EXIT]]
-
-for.body:
-  %indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
-  %c.010 = phi i32 [ 0, %for.body.lr.ph ], [ %add, %for.body ]
-  %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
-  %0 = load i32, i32* %arrayidx, align 4
-  %arrayidx2 = getelementptr inbounds i32, i32* %b, i64 %indvars.iv
-  %1 = load i32, i32* %arrayidx2, align 4
-  %mul = mul nsw i32 %1, %0
-  %add = add nsw i32 %mul, %c.010
-  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
-  %exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count
-  br i1 %exitcond, label %for.cond.cleanup, label %for.body
-}