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, 100 deletions

diff --git a/llvm/test/Transforms/IRCE/unhandled.ll b/llvm/test/Transforms/IRCE/unhandled.ll
deleted file mode 100644
index db4ac84d746..00000000000
--- a/llvm/test/Transforms/IRCE/unhandled.ll
+++ /dev/null
@@ -1,100 +0,0 @@
-; RUN: opt -irce-print-changed-loops -verify-loop-info -irce -S < %s 2>&1 | FileCheck %s
-; RUN: opt -irce-print-changed-loops -verify-loop-info -passes='require<branch-prob>,loop(irce)' -S < %s 2>&1 | FileCheck %s
-
-; CHECK-NOT: constrained Loop at depth
-
-; Demonstrates that we don't currently handle the general expression
-; `A * I + B'.
-
-define void @general_affine_expressions(i32 *%arr, i32 *%a_len_ptr, i32 %n,
-                                        i32 %scale, i32 %offset) {
- entry:
-  %len = load i32, i32* %a_len_ptr, !range !0
-  %first.itr.check = icmp sgt i32 %n, 0
-  br i1 %first.itr.check, label %loop, label %exit
-
- loop:
-  %idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds ]
-  %idx.next = add i32 %idx, 1
-  %idx.mul = mul i32 %idx, %scale
-  %array.idx = add i32 %idx.mul, %offset
-  %abc.high = icmp slt i32 %array.idx, %len
-  %abc.low = icmp sge i32 %array.idx, 0
-  %abc = and i1 %abc.low, %abc.high
-  br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1
-
- in.bounds:
-  %addr = getelementptr i32, i32* %arr, i32 %array.idx
-  store i32 0, i32* %addr
-  %next = icmp slt i32 %idx.next, %n
-  br i1 %next, label %loop, label %exit
-
- out.of.bounds:
-  ret void
-
- exit:
-  ret void
-}
-
-; Check that we do the right thing for a loop that could not be
-; simplified due to an indirectbr.
-
-define void @multiple_latches(i32 *%arr, i32 *%a_len_ptr, i32 %n) {
- entry:
-  %len = load i32, i32* %a_len_ptr, !range !0
-  %n.add.1 = add i32 %n, 1
-  %first.itr.check = icmp sgt i32 %n, 0
-  br i1 %first.itr.check, label %loop, label %exit
-
- loop:
-  %idx = phi i32 [ 0, %entry ], [ %idx.next, %in.bounds ], [ %idx.next, %continue ]
-  %idx.next = add i32 %idx, 1
-  %idx.next2 = add i32 %idx, 2
-  %abc = icmp slt i32 %idx, %len
-  br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1
-
- in.bounds:
-  %addr = getelementptr i32, i32* %arr, i32 %idx
-  store i32 0, i32* %addr
-  %next = icmp slt i32 %idx.next, %n
-  br i1 %next, label %loop, label %continue
-
- continue:
-  %next2 = icmp slt i32 %idx.next, %n.add.1
-  %dest = select i1 %next2, i8* blockaddress(@multiple_latches, %loop), i8* blockaddress(@multiple_latches, %exit)
-  indirectbr i8* %dest, [ label %loop, label %exit]
-
- out.of.bounds:
-  ret void
-
- exit:
-  ret void
-}
-
-define void @already_cloned(i32 *%arr, i32 *%a_len_ptr, i32 %n) {
- entry:
-  %len = load i32, i32* %a_len_ptr, !range !0
-  %first.itr.check = icmp sgt i32 %n, 0
-  br i1 %first.itr.check, label %loop, label %exit
-
- loop:
-  %idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds ]
-  %idx.next = add i32 %idx, 1
-  %abc = icmp slt i32 %idx, %len
-  br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1
-
- in.bounds:
-  %addr = getelementptr i32, i32* %arr, i32 %idx
-  store i32 0, i32* %addr
-  %next = icmp slt i32 %idx.next, %n
-  br i1 %next, label %loop, label %exit, !irce.loop.clone !{}
-
- out.of.bounds:
-  ret void
-
- exit:
-  ret void
-}
-
-!0 = !{i32 0, i32 2147483647}
-!1 = !{!"branch_weights", i32 64, i32 4}