Revert all my SSAUpdater patches. The PHI placement algorithm is not correct

(what was I thinking?) and there's also a problem with LCSSA.  I'll try again
later with fixes.

--- Reverse-merging r100263 into '.':
U    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100177 into '.':
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100148 into '.':
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100147 into '.':
U    include/llvm/Transforms/Utils/SSAUpdater.h
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100131 into '.':
G    include/llvm/Transforms/Utils/SSAUpdater.h
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100130 into '.':
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100126 into '.':
G    include/llvm/Transforms/Utils/SSAUpdater.h
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100050 into '.':
D    test/Transforms/GVN/2010-03-31-RedundantPHIs.ll
--- Reverse-merging r100047 into '.':
G    include/llvm/Transforms/Utils/SSAUpdater.h
G    lib/Transforms/Utils/SSAUpdater.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100264 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 46 deletions

diff --git a/test/Transforms/GVN/2010-03-31-RedundantPHIs.ll b/test/Transforms/GVN/2010-03-31-RedundantPHIs.ll
deleted file mode 100644
index 066e303..0000000
--- a/test/Transforms/GVN/2010-03-31-RedundantPHIs.ll
+++ /dev/null
@@ -1,46 +0,0 @@
-; RUN: opt < %s -gvn -enable-full-load-pre -S | FileCheck %s
-
-define i8* @cat(i8* %s1, ...) nounwind {
-entry:
-  br i1 undef, label %bb, label %bb3
-
-bb:                                               ; preds = %entry
-  unreachable
-
-bb3:                                              ; preds = %entry
-  store i8* undef, i8** undef, align 4
-  br i1 undef, label %bb5, label %bb6
-
-bb5:                                              ; preds = %bb3
-  unreachable
-
-bb6:                                              ; preds = %bb3
-  br label %bb12
-
-bb8:                                              ; preds = %bb12
-  br i1 undef, label %bb9, label %bb10
-
-bb9:                                              ; preds = %bb8
-  %0 = load i8** undef, align 4                   ; <i8*> [#uses=0]
-  %1 = load i8** undef, align 4                   ; <i8*> [#uses=0]
-  br label %bb11
-
-bb10:                                             ; preds = %bb8
-  br label %bb11
-
-bb11:                                             ; preds = %bb10, %bb9
-; CHECK: bb11:
-; CHECK: phi
-; CHECK-NOT: phi
-  br label %bb12
-
-bb12:                                             ; preds = %bb11, %bb6
-; CHECK: bb12:
-; CHECK: phi
-; CHECK-NOT: phi
-  br i1 undef, label %bb8, label %bb13
-
-bb13:                                             ; preds = %bb12
-; CHECK: bb13:
-  ret i8* undef
-}