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, 76 deletions

diff --git a/llvm/test/Transforms/LoopVectorize/vectorize-once.ll b/llvm/test/Transforms/LoopVectorize/vectorize-once.ll
deleted file mode 100644
index d407ac1719c..00000000000
--- a/llvm/test/Transforms/LoopVectorize/vectorize-once.ll
+++ /dev/null
@@ -1,76 +0,0 @@
-; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S -simplifycfg | FileCheck %s
-
-target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
-
-;
-; We want to make sure that we are vectorizeing the scalar loop only once
-; even if the pass manager runs the vectorizer multiple times due to inlining.
-
-
-; This test checks that we add metadata to vectorized loops
-; CHECK-LABEL: @_Z4foo1Pii(
-; CHECK: <4 x i32>
-; CHECK: llvm.loop
-; CHECK: ret
-
-; This test comes from the loop:
-;
-;int foo (int *A, int n) {
-;  return std::accumulate(A, A + n, 0);
-;}
-define i32 @_Z4foo1Pii(i32* %A, i32 %n) #0 {
-entry:
-  %idx.ext = sext i32 %n to i64
-  %add.ptr = getelementptr inbounds i32, i32* %A, i64 %idx.ext
-  %cmp3.i = icmp eq i32 %n, 0
-  br i1 %cmp3.i, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %for.body.i
-
-for.body.i:                                       ; preds = %entry, %for.body.i
-  %__init.addr.05.i = phi i32 [ %add.i, %for.body.i ], [ 0, %entry ]
-  %__first.addr.04.i = phi i32* [ %incdec.ptr.i, %for.body.i ], [ %A, %entry ]
-  %0 = load i32, i32* %__first.addr.04.i, align 4
-  %add.i = add nsw i32 %0, %__init.addr.05.i
-  %incdec.ptr.i = getelementptr inbounds i32, i32* %__first.addr.04.i, i64 1
-  %cmp.i = icmp eq i32* %incdec.ptr.i, %add.ptr
-  br i1 %cmp.i, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %for.body.i
-
-_ZSt10accumulateIPiiET0_T_S2_S1_.exit:            ; preds = %for.body.i, %entry
-  %__init.addr.0.lcssa.i = phi i32 [ 0, %entry ], [ %add.i, %for.body.i ]
-  ret i32 %__init.addr.0.lcssa.i
-}
-
-; This test checks that we don't vectorize loops that are marked with the "width" == 1 metadata.
-; CHECK-LABEL: @_Z4foo2Pii(
-; CHECK-NOT: <4 x i32>
-; CHECK: llvm.loop
-; CHECK: ret
-define i32 @_Z4foo2Pii(i32* %A, i32 %n) #0 {
-entry:
-  %idx.ext = sext i32 %n to i64
-  %add.ptr = getelementptr inbounds i32, i32* %A, i64 %idx.ext
-  %cmp3.i = icmp eq i32 %n, 0
-  br i1 %cmp3.i, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %for.body.i
-
-for.body.i:                                       ; preds = %entry, %for.body.i
-  %__init.addr.05.i = phi i32 [ %add.i, %for.body.i ], [ 0, %entry ]
-  %__first.addr.04.i = phi i32* [ %incdec.ptr.i, %for.body.i ], [ %A, %entry ]
-  %0 = load i32, i32* %__first.addr.04.i, align 4
-  %add.i = add nsw i32 %0, %__init.addr.05.i
-  %incdec.ptr.i = getelementptr inbounds i32, i32* %__first.addr.04.i, i64 1
-  %cmp.i = icmp eq i32* %incdec.ptr.i, %add.ptr
-  br i1 %cmp.i, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %for.body.i, !llvm.loop !0
-
-_ZSt10accumulateIPiiET0_T_S2_S1_.exit:            ; preds = %for.body.i, %entry
-  %__init.addr.0.lcssa.i = phi i32 [ 0, %entry ], [ %add.i, %for.body.i ]
-  ret i32 %__init.addr.0.lcssa.i
-}
-
-attributes #0 = { nounwind readonly ssp uwtable "fp-contract-model"="standard" "no-frame-pointer-elim" "no-frame-pointer-elim-non-leaf" "realign-stack" "relocation-model"="pic" "ssp-buffers-size"="8" }
-
-; CHECK: !0 = distinct !{!0, !1}
-; CHECK: !1 = !{!"llvm.loop.isvectorized", i32 1}
-; CHECK: !2 = distinct !{!2, !3, !1}
-; CHECK: !3 = !{!"llvm.loop.unroll.runtime.disable"}
-
-!0 = !{!0, !1}
-!1 = !{!"llvm.loop.vectorize.width", i32 1}