llvm/test/Transforms/LoopUnswitch/basictest.ll
Chris Lattner 74332be31e New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13067 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-19 18:06:34 +00:00

36 lines
1.2 KiB
LLVM

; RUN: llvm-as < %s | opt -loop-unswitch -disable-output
implementation ; Functions:
int %test(int* %A, bool %C) {
entry:
br label %no_exit
no_exit: ; preds = %entry, %no_exit.backedge
%i.0.0 = phi uint [ 0, %entry ], [ %i.0.0.be, %no_exit.backedge ] ; <uint> [#uses=3]
%tmp.7 = getelementptr int* %A, uint %i.0.0 ; <int*> [#uses=4]
%tmp.13 = load int* %tmp.7 ; <int> [#uses=1]
%tmp.14 = add int %tmp.13, 1 ; <int> [#uses=1]
store int %tmp.14, int* %tmp.7
br bool %C, label %then, label %endif
then: ; preds = %no_exit
%tmp.29 = load int* %tmp.7 ; <int> [#uses=1]
%tmp.30 = add int %tmp.29, 2 ; <int> [#uses=1]
store int %tmp.30, int* %tmp.7
%inc9 = add uint %i.0.0, 1 ; <uint> [#uses=2]
%tmp.112 = setlt uint %inc9, 100000 ; <bool> [#uses=1]
br bool %tmp.112, label %no_exit.backedge, label %return
no_exit.backedge: ; preds = %then, %endif
%i.0.0.be = phi uint [ %inc9, %then ], [ %inc, %endif ] ; <uint> [#uses=1]
br label %no_exit
endif: ; preds = %no_exit
%inc = add uint %i.0.0, 1 ; <uint> [#uses=2]
%tmp.1 = setlt uint %inc, 100000 ; <bool> [#uses=1]
br bool %tmp.1, label %no_exit.backedge, label %return
return: ; preds = %then, %endif
ret int %tmp.13
}