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1; RUN: llc < %s -mtriple=x86_64-unknown-freebsd8.1 -o /dev/null2; This formerly crashed, PR 8154.3 4module asm ".weak sem_close"5module asm ".equ sem_close, _sem_close"6module asm ".weak sem_destroy"7module asm ".equ sem_destroy, _sem_destroy"8module asm ".weak sem_getvalue"9module asm ".equ sem_getvalue, _sem_getvalue"10module asm ".weak sem_init"11module asm ".equ sem_init, _sem_init"12module asm ".weak sem_open"13module asm ".equ sem_open, _sem_open"14module asm ".weak sem_post"15module asm ".equ sem_post, _sem_post"16module asm ".weak sem_timedwait"17module asm ".equ sem_timedwait, _sem_timedwait"18module asm ".weak sem_trywait"19module asm ".equ sem_trywait, _sem_trywait"20module asm ".weak sem_unlink"21module asm ".equ sem_unlink, _sem_unlink"22module asm ".weak sem_wait"23module asm ".equ sem_wait, _sem_wait"24 25%struct._sem = type { i32, %struct._usem }26%struct._usem = type { i32, i32, i32 }27 28define void @_sem_timedwait(ptr noalias %sem) nounwind ssp {29entry:30 br i1 undef, label %while.cond.preheader, label %sem_check_validity.exit31 32while.cond.preheader: ; preds = %entry33 %tmp4 = getelementptr inbounds %struct._sem, ptr %sem, i64 0, i32 1, i32 134 br label %while.cond35 36sem_check_validity.exit: ; preds = %entry37 ret void38 39while.cond: ; preds = %while.body, %while.cond.preheader40 br i1 undef, label %while.body, label %while.end41 42while.body: ; preds = %while.cond43 %0 = call i8 asm sideeffect "\09lock ; \09\09\09cmpxchgl $2,$1 ;\09 sete\09$0 ;\09\091:\09\09\09\09# atomic_cmpset_int", "={ax},=*m,r,{ax},*m,~{memory},~{dirflag},~{fpsr},~{flags}"(ptr elementtype(i32) %tmp4, i32 undef, i32 undef, ptr elementtype(i32) %tmp4) nounwind, !srcloc !044 br i1 undef, label %while.cond, label %return45 46while.end: ; preds = %while.cond47 br i1 undef, label %if.end18, label %return48 49if.end18: ; preds = %while.end50 unreachable51 52return: ; preds = %while.end, %while.body53 ret void54}55 56!0 = !{i32 158484}57