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, 48 deletions

diff --git a/llvm/test/Transforms/LoopLoadElim/forward.ll b/llvm/test/Transforms/LoopLoadElim/forward.ll
deleted file mode 100644
index 0b270cab3ed..00000000000
--- a/llvm/test/Transforms/LoopLoadElim/forward.ll
+++ /dev/null
@@ -1,48 +0,0 @@
-; RUN: opt -loop-load-elim -S < %s | FileCheck %s
-; RUN: opt -passes=loop-load-elim -S < %s | FileCheck %s
-
-; Simple st->ld forwarding derived from a lexical forward dep.
-;
-;   for (unsigned i = 0; i < 100; i++) {
-;     A[i+1] = B[i] + 2;
-;     C[i] = A[i] * 2;
-;   }
-
-target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
-
-define void @f(i32* %A, i32* %B, i32* %C, i64 %N) {
-
-; CHECK:   for.body.lver.check:
-; CHECK:     %found.conflict{{.*}} =
-; CHECK-NOT: %found.conflict{{.*}} =
-
-entry:
-; Make sure the hoisted load keeps the alignment
-; CHECK: %load_initial = load i32, i32* %A, align 1
-  br label %for.body
-
-for.body:                                         ; preds = %for.body, %entry
-; CHECK: %store_forwarded = phi i32 [ %load_initial, %for.body.ph ], [ %a_p1, %for.body ]
-  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
-  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
-
-  %Aidx_next = getelementptr inbounds i32, i32* %A, i64 %indvars.iv.next
-  %Bidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv
-  %Cidx = getelementptr inbounds i32, i32* %C, i64 %indvars.iv
-  %Aidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
-
-  %b = load i32, i32* %Bidx, align 4
-  %a_p1 = add i32 %b, 2
-  store i32 %a_p1, i32* %Aidx_next, align 4
-
-  %a = load i32, i32* %Aidx, align 1
-; CHECK: %c = mul i32 %store_forwarded, 2
-  %c = mul i32 %a, 2
-  store i32 %c, i32* %Cidx, align 4
-
-  %exitcond = icmp eq i64 %indvars.iv.next, %N
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body
-  ret void
-}