llvm-project/llvm/test/Transforms/InstCombine/2003-08-12-AllocaNonNull.ll

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; This testcase can be simplified by "realizing" that alloca can never return
; null.
; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine -simplifycfg | llvm-dis | not grep 'br '
implementation ; Functions:
declare int %bitmap_clear(...)
int %oof() {
entry:
%live_head = alloca int ; <int*> [#uses=2]
%tmp.1 = setne int* %live_head, null ; <bool> [#uses=1]
br bool %tmp.1, label %then, label %UnifiedExitNode
then:
%tmp.4 = call int (...)* %bitmap_clear( int* %live_head ) ; <int> [#uses=0]
br label %UnifiedExitNode
UnifiedExitNode:
ret int 0
}