llvm-6502/test/Transforms/LoopIndexSplit/PR4174-2.ll
Devang Patel 86b6f80a4c Check for side effects before splitting loop.
Patch by Jakub Staszak!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102928 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-03 18:06:58 +00:00

39 lines
826 B
LLVM

; RUN: llvm-as < %s | opt -loop-index-split | llvm-dis | not grep clone
declare void @f()
define fastcc i32 @main() nounwind {
entry:
br label %bb1552
bb1552:
%j295.0.reg2mem.0 = phi i32 [ %storemerge110, %bb1669 ], [ 0, %entry ]
br label %bb1553
bb1553:
call void @f()
%tmp1628 = icmp sgt i32 %j295.0.reg2mem.0, -3
br i1 %tmp1628, label %bb1588, label %bb1616
bb1588:
br label %bb1616
bb1616:
%tmp1629 = icmp sgt i32 %j295.0.reg2mem.0, -3
br i1 %tmp1629, label %bb1649, label %bb1632
bb1632:
br label %bb1669
bb1649:
br label %bb1669
bb1669:
%storemerge110 = add i32 %j295.0.reg2mem.0, 1
%tmp1672 = icmp sgt i32 %storemerge110, 3
br i1 %tmp1672, label %bb1678, label %bb1552
bb1678:
ret i32 0
}