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, 70 deletions

diff --git a/llvm/test/Transforms/LoopVectorize/hoist-loads.ll b/llvm/test/Transforms/LoopVectorize/hoist-loads.ll
deleted file mode 100644
index db4774d8ba9..00000000000
--- a/llvm/test/Transforms/LoopVectorize/hoist-loads.ll
+++ /dev/null
@@ -1,70 +0,0 @@
-; RUN: opt -loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S < %s | 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"
-
-@A = common global [1024 x float] zeroinitializer, align 16
-@B = common global [1024 x float] zeroinitializer, align 16
-
-; Make sure we can vectorize in the presence of hoistable conditional loads.
-; CHECK-LABEL: @hoist_cond_load(
-; CHECK: load <2 x float>
-
-define void @hoist_cond_load() {
-entry:
-  br label %for.body
-for.body:
-  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %if.end9 ]
-  %arrayidx = getelementptr inbounds [1024 x float], [1024 x float]* @A, i64 0, i64 %indvars.iv
-  %arrayidx2 = getelementptr inbounds [1024 x float], [1024 x float]* @B, i64 0, i64 %indvars.iv
-  %0 = load float, float* %arrayidx2, align 4
-  %cmp3 = fcmp oeq float %0, 0.000000e+00
-  br i1 %cmp3, label %if.end9, label %if.else
-
-if.else:
-  %1 = load float, float* %arrayidx, align 4
-  br label %if.end9
-
-if.end9:
-  %tmp.0 = phi float [ %1, %if.else ], [ 0.000000e+00, %for.body ]
-  store float %tmp.0, float* %arrayidx, align 4
-  %indvars.iv.next = add i64 %indvars.iv, 1
-  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
-  %exitcond = icmp ne i32 %lftr.wideiv, 1024
-  br i1 %exitcond, label %for.body, label %for.end
-
-for.end:
-  ret void
-}
-
-; However, we can't hoist loads whose address we have not seen unconditionally
-; accessed. One wide load is fine, but not the second.
-; CHECK-LABEL: @dont_hoist_cond_load(
-; CHECK: load <2 x float>
-; CHECK-NOT: load <2 x float>
-
-define void @dont_hoist_cond_load() {
-entry:
-  br label %for.body
-for.body:
-  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %if.end9 ]
-  %arrayidx = getelementptr inbounds [1024 x float], [1024 x float]* @A, i64 0, i64 %indvars.iv
-  %arrayidx2 = getelementptr inbounds [1024 x float], [1024 x float]* @B, i64 0, i64 %indvars.iv
-  %0 = load float, float* %arrayidx2, align 4
-  %cmp3 = fcmp oeq float %0, 0.000000e+00
-  br i1 %cmp3, label %if.end9, label %if.else
-
-if.else:
-  %1 = load float, float* %arrayidx, align 4
-  br label %if.end9
-
-if.end9:
-  %tmp.0 = phi float [ %1, %if.else ], [ 0.000000e+00, %for.body ]
-  store float %tmp.0, float* %arrayidx2, align 4
-  %indvars.iv.next = add i64 %indvars.iv, 1
-  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
-  %exitcond = icmp ne i32 %lftr.wideiv, 1024
-  br i1 %exitcond, label %for.body, label %for.end
-
-for.end:
-  ret void
-}