llvm-project/llvm/test/Transforms/LCSSA/unreachable-use.ll

28 lines
456 B
LLVM

; RUN: opt < %s -lcssa -S -verify-loop-info | grep {\[%\]tmp33 = load i1\\*\\* \[%\]tmp}
; PR6546
; LCSSA doesn't need to transform uses in blocks not reachable
; from the entry block.
define fastcc void @dfs() nounwind {
bb:
br label %bb44
bb44:
br i1 undef, label %bb7, label %bb45
bb7:
%tmp = bitcast i1** undef to i1**
br label %bb15
bb15:
br label %bb44
bb32:
%tmp33 = load i1** %tmp, align 8
br label %bb45
bb45:
unreachable
}