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; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | grep select | not grep 'int\*'
; This testcase corresponds to PR362, which notices that this horrible code
; is generated by the C++ front-end and LLVM optimizers, which has lots of
; loads and other stuff that are unneeded.
;
; Instcombine should propagate the load through the select instructions to
; allow elimination of the extra stuff by the mem2reg pass.
implementation ; Functions:
void %_Z5test1RiS_(int* %x, int* %y) {
entry:
%tmp.1.i = load int* %y ; <int> [#uses=1]
%tmp.3.i = load int* %x ; <int> [#uses=1]
%tmp.4.i = setlt int %tmp.1.i, %tmp.3.i ; <bool> [#uses=1]
%retval.i = select bool %tmp.4.i, int* %y, int* %x ; <int*> [#uses=1]
%tmp.4 = load int* %retval.i ; <int> [#uses=1]
store int %tmp.4, int* %x
ret void
}
void %_Z5test2RiS_(int* %x, int* %y) {
entry:
%tmp.0 = alloca int ; <int*> [#uses=2]
%tmp.2 = load int* %x ; <int> [#uses=2]
store int %tmp.2, int* %tmp.0
%tmp.3.i = load int* %y ; <int> [#uses=1]
%tmp.4.i = setlt int %tmp.2, %tmp.3.i ; <bool> [#uses=1]
%retval.i = select bool %tmp.4.i, int* %y, int* %tmp.0 ; <int*> [#uses=1]
%tmp.6 = load int* %retval.i ; <int> [#uses=1]
store int %tmp.6, int* %y
ret void
}
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