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, 237 deletions

diff --git a/llvm/test/Transforms/LoopRotate/multiple-exits.ll b/llvm/test/Transforms/LoopRotate/multiple-exits.ll
deleted file mode 100644
index c6f153b8ca3..00000000000
--- a/llvm/test/Transforms/LoopRotate/multiple-exits.ll
+++ /dev/null
@@ -1,237 +0,0 @@
-; RUN: opt -S -loop-rotate < %s -verify-loop-info -verify-dom-info | FileCheck %s
-; RUN: opt -S -loop-rotate < %s -verify-loop-info -verify-dom-info -enable-mssa-loop-dependency=true -verify-memoryssa | 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"
-target triple = "x86_64-apple-macosx10.8.0"
-
-; PR7447
-define i32 @test1([100 x i32]* nocapture %a) nounwind readonly {
-entry:
-  br label %for.cond
-
-for.cond:                                         ; preds = %for.cond1, %entry
-  %sum.0 = phi i32 [ 0, %entry ], [ %sum.1, %for.cond1 ]
-  %i.0 = phi i1 [ true, %entry ], [ false, %for.cond1 ]
-  br i1 %i.0, label %for.cond1, label %return
-
-for.cond1:                                        ; preds = %for.cond, %land.rhs
-  %sum.1 = phi i32 [ %add, %land.rhs ], [ %sum.0, %for.cond ]
-  %i.1 = phi i32 [ %inc, %land.rhs ], [ 0, %for.cond ]
-  %cmp2 = icmp ult i32 %i.1, 100
-  br i1 %cmp2, label %land.rhs, label %for.cond
-
-land.rhs:                                         ; preds = %for.cond1
-  %conv = zext i32 %i.1 to i64
-  %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* %a, i64 0, i64 %conv
-  %0 = load i32, i32* %arrayidx, align 4
-  %add = add i32 %0, %sum.1
-  %cmp4 = icmp ugt i32 %add, 1000
-  %inc = add i32 %i.1, 1
-  br i1 %cmp4, label %return, label %for.cond1
-
-return:                                           ; preds = %for.cond, %land.rhs
-  %retval.0 = phi i32 [ 1000, %land.rhs ], [ %sum.0, %for.cond ]
-  ret i32 %retval.0
-
-; CHECK-LABEL: @test1(
-; CHECK: for.cond1.preheader:
-; CHECK: %sum.04 = phi i32 [ 0, %entry ], [ %sum.1.lcssa, %for.cond.loopexit ]
-; CHECK: br label %for.cond1
-
-; CHECK: for.cond1:
-; CHECK: %sum.1 = phi i32 [ %add, %land.rhs ], [ %sum.04, %for.cond1.preheader ]
-; CHECK: %i.1 = phi i32 [ %inc, %land.rhs ], [ 0, %for.cond1.preheader ]
-; CHECK: %cmp2 = icmp ult i32 %i.1, 100
-; CHECK: br i1 %cmp2, label %land.rhs, label %for.cond.loopexit
-}
-
-define void @test2(i32 %x) nounwind {
-entry:
-  br label %for.cond
-
-for.cond:                                         ; preds = %if.end, %entry
-  %i.0 = phi i32 [ 0, %entry ], [ %inc, %if.end ]
-  %cmp = icmp eq i32 %i.0, %x
-  br i1 %cmp, label %return.loopexit, label %for.body
-
-for.body:                                         ; preds = %for.cond
-  %call = tail call i32 @foo(i32 %i.0) nounwind
-  %tobool = icmp eq i32 %call, 0
-  br i1 %tobool, label %if.end, label %a
-
-if.end:                                           ; preds = %for.body
-  %call1 = tail call i32 @foo(i32 42) nounwind
-  %inc = add i32 %i.0, 1
-  br label %for.cond
-
-a:                                                ; preds = %for.body
-  %call2 = tail call i32 @bar(i32 1) nounwind
-  br label %return
-
-return.loopexit:                                  ; preds = %for.cond
-  br label %return
-
-return:                                           ; preds = %return.loopexit, %a
-  ret void
-
-; CHECK-LABEL: @test2(
-; CHECK: if.end:
-; CHECK: %inc = add i32 %i.02, 1
-; CHECK: %cmp = icmp eq i32 %inc, %x
-; CHECK: br i1 %cmp, label %for.cond.return.loopexit_crit_edge, label %for.body
-}
-
-declare i32 @foo(i32)
-
-declare i32 @bar(i32)
-
-@_ZTIi = external constant i8*
-
-; Verify dominators.
-define void @test3(i32 %x) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
-entry:
-  %cmp2 = icmp eq i32 0, %x
-  br i1 %cmp2, label %try.cont.loopexit, label %for.body.lr.ph
-
-for.body.lr.ph:                                   ; preds = %entry
-  br label %for.body
-
-for.body:                                         ; preds = %for.body.lr.ph, %for.inc
-  %i.03 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ]
-  invoke void @_Z3fooi(i32 %i.03)
-          to label %for.inc unwind label %lpad
-
-for.inc:                                          ; preds = %for.body
-  %inc = add i32 %i.03, 1
-  %cmp = icmp eq i32 %inc, %x
-  br i1 %cmp, label %for.cond.try.cont.loopexit_crit_edge, label %for.body
-
-lpad:                                             ; preds = %for.body
-  %0 = landingpad { i8*, i32 }
-          catch i8* bitcast (i8** @_ZTIi to i8*)
-  %1 = extractvalue { i8*, i32 } %0, 0
-  %2 = extractvalue { i8*, i32 } %0, 1
-  %3 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) nounwind
-  %matches = icmp eq i32 %2, %3
-  br i1 %matches, label %catch, label %eh.resume
-
-catch:                                            ; preds = %lpad
-  %4 = tail call i8* @__cxa_begin_catch(i8* %1) nounwind
-  br i1 true, label %invoke.cont2.loopexit, label %for.body.i.lr.ph
-
-for.body.i.lr.ph:                                 ; preds = %catch
-  br label %for.body.i
-
-for.body.i:                                       ; preds = %for.body.i.lr.ph, %for.inc.i
-  %i.0.i1 = phi i32 [ 0, %for.body.i.lr.ph ], [ %inc.i, %for.inc.i ]
-  invoke void @_Z3fooi(i32 %i.0.i1)
-          to label %for.inc.i unwind label %lpad.i
-
-for.inc.i:                                        ; preds = %for.body.i
-  %inc.i = add i32 %i.0.i1, 1
-  %cmp.i = icmp eq i32 %inc.i, 0
-  br i1 %cmp.i, label %for.cond.i.invoke.cont2.loopexit_crit_edge, label %for.body.i
-
-lpad.i:                                           ; preds = %for.body.i
-  %5 = landingpad { i8*, i32 }
-          catch i8* bitcast (i8** @_ZTIi to i8*)
-  %6 = extractvalue { i8*, i32 } %5, 0
-  %7 = extractvalue { i8*, i32 } %5, 1
-  %matches.i = icmp eq i32 %7, %3
-  br i1 %matches.i, label %catch.i, label %lpad1.body
-
-catch.i:                                          ; preds = %lpad.i
-  %8 = tail call i8* @__cxa_begin_catch(i8* %6) nounwind
-  invoke void @test3(i32 0)
-          to label %invoke.cont2.i unwind label %lpad1.i
-
-invoke.cont2.i:                                   ; preds = %catch.i
-  tail call void @__cxa_end_catch() nounwind
-  br label %invoke.cont2
-
-lpad1.i:                                          ; preds = %catch.i
-  %9 = landingpad { i8*, i32 }
-          cleanup
-  %10 = extractvalue { i8*, i32 } %9, 0
-  %11 = extractvalue { i8*, i32 } %9, 1
-  tail call void @__cxa_end_catch() nounwind
-  br label %lpad1.body
-
-for.cond.i.invoke.cont2.loopexit_crit_edge:       ; preds = %for.inc.i
-  br label %invoke.cont2.loopexit
-
-invoke.cont2.loopexit:                            ; preds = %for.cond.i.invoke.cont2.loopexit_crit_edge, %catch
-  br label %invoke.cont2
-
-invoke.cont2:                                     ; preds = %invoke.cont2.loopexit, %invoke.cont2.i
-  tail call void @__cxa_end_catch() nounwind
-  br label %try.cont
-
-for.cond.try.cont.loopexit_crit_edge:             ; preds = %for.inc
-  br label %try.cont.loopexit
-
-try.cont.loopexit:                                ; preds = %for.cond.try.cont.loopexit_crit_edge, %entry
-  br label %try.cont
-
-try.cont:                                         ; preds = %try.cont.loopexit, %invoke.cont2
-  ret void
-
-lpad1.body:                                       ; preds = %lpad1.i, %lpad.i
-  %exn.slot.0.i = phi i8* [ %10, %lpad1.i ], [ %6, %lpad.i ]
-  %ehselector.slot.0.i = phi i32 [ %11, %lpad1.i ], [ %7, %lpad.i ]
-  tail call void @__cxa_end_catch() nounwind
-  br label %eh.resume
-
-eh.resume:                                        ; preds = %lpad1.body, %lpad
-  %exn.slot.0 = phi i8* [ %exn.slot.0.i, %lpad1.body ], [ %1, %lpad ]
-  %ehselector.slot.0 = phi i32 [ %ehselector.slot.0.i, %lpad1.body ], [ %2, %lpad ]
-  %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn.slot.0, 0
-  %lpad.val5 = insertvalue { i8*, i32 } %lpad.val, i32 %ehselector.slot.0, 1
-  resume { i8*, i32 } %lpad.val5
-}
-
-declare void @_Z3fooi(i32)
-
-declare i32 @__gxx_personality_v0(...)
-
-declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone
-
-declare i8* @__cxa_begin_catch(i8*)
-
-declare void @__cxa_end_catch()
-
-define void @test4() nounwind uwtable {
-entry:
-  br label %"7"
-
-"3":                                              ; preds = %"7"
-  br i1 undef, label %"31", label %"4"
-
-"4":                                              ; preds = %"3"
-  %. = select i1 undef, float 0x3F50624DE0000000, float undef
-  %0 = add i32 %1, 1
-  br label %"7"
-
-"7":                                              ; preds = %"4", %entry
-  %1 = phi i32 [ %0, %"4" ], [ 0, %entry ]
-  %2 = icmp slt i32 %1, 100
-  br i1 %2, label %"3", label %"8"
-
-"8":                                              ; preds = %"7"
-  br i1 undef, label %"9", label %"31"
-
-"9":                                              ; preds = %"8"
-  br label %"33"
-
-"27":                                             ; preds = %"31"
-  unreachable
-
-"31":                                             ; preds = %"8", %"3"
-  br i1 undef, label %"27", label %"32"
-
-"32":                                             ; preds = %"31"
-  br label %"33"
-
-"33":                                             ; preds = %"32", %"9"
-  ret void
-}