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, 31 deletions

diff --git a/llvm/test/Transforms/FunctionAttrs/out-of-bounds-iterator-bug.ll b/llvm/test/Transforms/FunctionAttrs/out-of-bounds-iterator-bug.ll
deleted file mode 100644
index f2294fe22ef..00000000000
--- a/llvm/test/Transforms/FunctionAttrs/out-of-bounds-iterator-bug.ll
+++ /dev/null
@@ -1,31 +0,0 @@
-; RUN: opt -functionattrs -S < %s | FileCheck %s
-; RUN: opt -passes=function-attrs -S < %s | FileCheck %s
-
-; This checks for an iterator wraparound bug in FunctionAttrs.  The previous
-; "incorrect" behavior was inferring readonly for the %x argument in @caller.
-; Inferring readonly for %x *is* actually correct, since @va_func is marked
-; readonly, but FunctionAttrs was inferring readonly for the wrong reasons (and
-; we _need_ the readonly on @va_func to trigger the problematic code path).  It
-; is possible that in the future FunctionAttrs becomes smart enough to infer
-; readonly for %x for the right reasons, and at that point this test will have
-; to be marked invalid.
-
-declare void @llvm.va_start(i8*)
-declare void @llvm.va_end(i8*)
-
-define void @va_func(i32* readonly %b, ...) readonly nounwind {
-; CHECK-LABEL: define void @va_func(i32* nocapture readonly %b, ...)
- entry:
-  %valist = alloca i8
-  call void @llvm.va_start(i8* %valist)
-  call void @llvm.va_end(i8* %valist)
-  %x = call i32 @caller(i32* %b)
-  ret void
-}
-
-define i32 @caller(i32* %x) {
-; CHECK-LABEL: define i32 @caller(i32* nocapture %x)
- entry:
-  call void(i32*,...) @va_func(i32* null, i32 0, i32 0, i32 0, i32* %x)
-  ret i32 42
-}