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, 246 deletions

diff --git a/llvm/test/Transforms/JumpThreading/fold-not-thread.ll b/llvm/test/Transforms/JumpThreading/fold-not-thread.ll
deleted file mode 100644
index 85cdcc0d9b3..00000000000
--- a/llvm/test/Transforms/JumpThreading/fold-not-thread.ll
+++ /dev/null
@@ -1,246 +0,0 @@
-; RUN: opt -jump-threading -S -verify < %s | FileCheck %s
-
-declare i32 @f1()
-declare i32 @f2()
-declare void @f3()
-declare void @f4(i32)
-
-
-; Make sure we update the phi node properly.
-;
-; CHECK-LABEL: define void @test_br_folding_not_threading_update_phi(
-; CHECK: br label %L1
-; Make sure we update the phi node properly here, i.e. we only have 2 predecessors, entry and L0
-; CHECK: %res.0 = phi i32 [ 0, %L0 ], [ 1, %entry ]
-define void @test_br_folding_not_threading_update_phi(i32 %val) nounwind {
-entry:
-  %cmp = icmp eq i32 %val, 32
-  br i1 %cmp, label %L0, label %L1
-L0:
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  switch i32 %val, label %L2 [
-    i32 0, label %L1
-    i32 32, label %L1
-  ]
-
-L1:
-	%res.0 = phi i32 [ 0, %L0 ], [ 0, %L0 ], [1, %entry]
-  call void @f4(i32 %res.0)
-  ret void
-L2:
-  call void @f3()
-  ret void
-}
-
-; Make sure we can fold this branch ... We will not be able to thread it as
-; L0 is too big to duplicate. L2 is the unreachable block here.
-;
-; CHECK-LABEL: @test_br_folding_not_threading(
-; CHECK: L1:
-; CHECK: call i32 @f2()
-; CHECK: call void @f3()
-; CHECK-NEXT: ret void
-; CHECK-NOT: br
-; CHECK: L3:
-define void @test_br_folding_not_threading(i1 %cond) nounwind {
-entry:
-  br i1 %cond, label %L0, label %L3 
-L0:
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  br i1 %cond, label %L1, label %L2 
-
-L1:
-  call void @f3()
-  ret void
-L2:
-  call void @f3()
-  ret void
-L3:
-  call void @f3()
-  ret void
-}
-
-
-; Make sure we can fold this branch ... We will not be able to thread it as
-; L0 is too big to duplicate. L2 is the unreachable block here.
-; With more than 1 predecessors.
-;
-; CHECK-LABEL: @test_br_folding_not_threading_multiple_preds(
-; CHECK: L1:
-; CHECK: call i32 @f2()
-; CHECK: call void @f3()
-; CHECK-NEXT: ret void
-; CHECK-NOT: br
-; CHECK: L3:
-define void @test_br_folding_not_threading_multiple_preds(i1 %condx, i1 %cond) nounwind {
-entry:
-  br i1 %condx, label %X0, label %X1
-
-X0:
-  br i1 %cond, label %L0, label %L3 
-
-X1:
-  br i1 %cond, label %L0, label %L3 
-
-L0:
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  br i1 %cond, label %L1, label %L2 
-
-L1:
-  call void @f3()
-  ret void
-L2:
-  call void @f3()
-  ret void
-L3:
-  call void @f3()
-  ret void
-}
-
-; Make sure we can do the RAUW for %add...
-;
-; CHECK-LABEL: @rauw_if_possible(
-; CHECK: call void @f4(i32 96)
-define void @rauw_if_possible(i32 %value) nounwind {
-entry:
-  %cmp = icmp eq i32 %value, 32
-  br i1 %cmp, label %L0, label %L3 
-L0:
-  call i32 @f2()
-  call i32 @f2()
-  %add = add i32 %value, 64
-  switch i32 %add, label %L3 [
-    i32 32, label %L1
-    i32 96, label %L2
-    ]
-
-L1:
-  call void @f3()
-  ret void
-L2:
-  call void @f4(i32 %add)
-  ret void
-L3:
-  call void @f3()
-  ret void
-}
-
-; Make sure we can NOT do the RAUW for %add...
-;
-; CHECK-LABEL: @rauw_if_possible2(
-; CHECK: call void @f4(i32 %add) 
-define void @rauw_if_possible2(i32 %value) nounwind {
-entry:
-  %cmp = icmp eq i32 %value, 32
-  %add = add i32 %value, 64
-  br i1 %cmp, label %L0, label %L2 
-L0:
-  call i32 @f2()
-  call i32 @f2()
-  switch i32 %add, label %L3 [
-    i32 32, label %L1
-    i32 96, label %L2
-    ]
-
-L1:
-  call void @f3()
-  ret void
-L2:
-  call void @f4(i32 %add)
-  ret void
-L3:
-  call void @f3()
-  ret void
-}
-
-; Make sure we can fold this branch ... We will not be able to thread it as
-; L0 is too big to duplicate.
-; We do not attempt to rewrite the indirectbr target here, but we still take
-; its target after L0 into account and that enables us to fold.
-;
-; L2 is the unreachable block here.
-; 
-; CHECK-LABEL: @test_br_folding_not_threading_indirect_branch(
-; CHECK: L1:
-; CHECK: call i32 @f2()
-; CHECK: call void @f3()
-; CHECK-NEXT: ret void
-; CHECK-NOT: br
-; CHECK: L3:
-define void @test_br_folding_not_threading_indirect_branch(i1 %condx, i1 %cond) nounwind {
-entry:
-  br i1 %condx, label %X0, label %X1
-
-X0:
-  br i1 %cond, label %L0, label %L3
-
-X1:
-  br i1 %cond, label %XX1, label %L3
-
-XX1:
-  indirectbr i8* blockaddress(@test_br_folding_not_threading_indirect_branch, %L0), [label %L0]
-
-L0:
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  call i32 @f2()
-  br i1 %cond, label %L1, label %L2
-
-L1:
-  call void @f3()
-  ret void
-
-L2:
-  call void @f3()
-  ret void
-
-L3:
-  call void @f3()
-  ret void
-}