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; LoopSimplify is breaking LICM on this testcase because the exit blocks from
; the loop are reachable from more than just the exit nodes: the exit blocks
; have predecessors from outside of the loop!
;
; This is distilled from a monsterous crafty example.
; RUN: llvm-upgrade < %s | llvm-as | opt -licm -disable-output
%G = weak global int 0 ; <int*> [#uses=13]
implementation ; Functions:
int %main() {
entry:
store int 123, int* %G
br label %loopentry.i
loopentry.i: ; preds = %entry, %endif.1.i
%tmp.0.i = load int* %G ; <int> [#uses=1]
%tmp.1.i = seteq int %tmp.0.i, 123 ; <bool> [#uses=1]
br bool %tmp.1.i, label %Out.i, label %endif.0.i
endif.0.i: ; preds = %loopentry.i
%tmp.3.i = load int* %G ; <int> [#uses=1]
%tmp.4.i = seteq int %tmp.3.i, 126 ; <bool> [#uses=1]
br bool %tmp.4.i, label %ExitBlock.i, label %endif.1.i
endif.1.i: ; preds = %endif.0.i
%tmp.6.i = load int* %G ; <int> [#uses=1]
%inc.i = add int %tmp.6.i, 1 ; <int> [#uses=1]
store int %inc.i, int* %G
br label %loopentry.i
Out.i: ; preds = %loopentry.i
store int 0, int* %G
br label %ExitBlock.i
ExitBlock.i: ; preds = %endif.0.i, %Out.i
%tmp.7.i = load int* %G ; <int> [#uses=1]
ret int %tmp.7.i
}
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