mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-31 16:02:52 +01:00
cf9dc14249
walking the asm arguments once and stashing their Values. This is wrong because the same memory location can be in the list twice, and if the first one has a sunkaddr substituted, the stashed value for the second one will be wrong (use-after-free). PR 8154. llvm-svn: 114104
57 lines
2.1 KiB
LLVM
57 lines
2.1 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-unknown-freebsd8.1 -o /dev/null
|
|
; This formerly crashed, PR 8154.
|
|
|
|
module asm ".weak sem_close"
|
|
module asm ".equ sem_close, _sem_close"
|
|
module asm ".weak sem_destroy"
|
|
module asm ".equ sem_destroy, _sem_destroy"
|
|
module asm ".weak sem_getvalue"
|
|
module asm ".equ sem_getvalue, _sem_getvalue"
|
|
module asm ".weak sem_init"
|
|
module asm ".equ sem_init, _sem_init"
|
|
module asm ".weak sem_open"
|
|
module asm ".equ sem_open, _sem_open"
|
|
module asm ".weak sem_post"
|
|
module asm ".equ sem_post, _sem_post"
|
|
module asm ".weak sem_timedwait"
|
|
module asm ".equ sem_timedwait, _sem_timedwait"
|
|
module asm ".weak sem_trywait"
|
|
module asm ".equ sem_trywait, _sem_trywait"
|
|
module asm ".weak sem_unlink"
|
|
module asm ".equ sem_unlink, _sem_unlink"
|
|
module asm ".weak sem_wait"
|
|
module asm ".equ sem_wait, _sem_wait"
|
|
|
|
%struct._sem = type { i32, %struct._usem }
|
|
%struct._usem = type { i32, i32, i32 }
|
|
|
|
define void @_sem_timedwait(%struct._sem* noalias %sem) nounwind ssp {
|
|
entry:
|
|
br i1 undef, label %while.cond.preheader, label %sem_check_validity.exit
|
|
|
|
while.cond.preheader: ; preds = %entry
|
|
%tmp4 = getelementptr inbounds %struct._sem* %sem, i64 0, i32 1, i32 1
|
|
br label %while.cond
|
|
|
|
sem_check_validity.exit: ; preds = %entry
|
|
ret void
|
|
|
|
while.cond: ; preds = %while.body, %while.cond.preheader
|
|
br i1 undef, label %while.body, label %while.end
|
|
|
|
while.body: ; preds = %while.cond
|
|
%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}"(i32* %tmp4, i32 undef, i32 undef, i32* %tmp4) nounwind, !srcloc !0
|
|
br i1 undef, label %while.cond, label %return
|
|
|
|
while.end: ; preds = %while.cond
|
|
br i1 undef, label %if.end18, label %return
|
|
|
|
if.end18: ; preds = %while.end
|
|
unreachable
|
|
|
|
return: ; preds = %while.end, %while.body
|
|
ret void
|
|
}
|
|
|
|
!0 = metadata !{i32 158484}
|