Prep for merging 3.4: Undo changes from 3.3 branch

test/CodeGen/X86/compact-unwind.ll

-; RUN: llc < %s -disable-cfi -disable-fp-elim -mtriple x86_64-apple-darwin11 | FileCheck %s
-
-%ty = type { i8* }
-
-@gv = external global i32
-
-; This is aligning the stack with a push of a random register.
-; CHECK: pushq %rax
-
-; Even though we can't encode %rax into the compact unwind, We still want to be
-; able to generate a compact unwind encoding in this particular case.
-;
-; CHECK: __LD,__compact_unwind
-; CHECK: _foo ## Range Start
-; CHECK: 16842753 ## Compact Unwind Encoding: 0x1010001
-
-define i8* @foo(i64 %size) {
-  %addr = alloca i64, align 8
-  %tmp20 = load i32* @gv, align 4
-  %tmp21 = call i32 @bar()
-  %tmp25 = load i64* %addr, align 8
-  %tmp26 = inttoptr i64 %tmp25 to %ty*
-  %tmp29 = getelementptr inbounds %ty* %tmp26, i64 0, i32 0
-  %tmp34 = load i8** %tmp29, align 8
-  %tmp35 = getelementptr inbounds i8* %tmp34, i64 %size
-  store i8* %tmp35, i8** %tmp29, align 8
-  ret i8* null
-}
-
-declare i32 @bar()