| Message ID | 1312385438-6273-3-git-send-email-amonakov@ispras.ru |
|---|---|
| State | New |
| Headers | show |
On 08/03/2011 11:30 AM, Alexander Monakov wrote: > From: Dmitry Melnik<dm@ispras.ru> > > This patch prevents duplicating (as bookkeeping code) instructions that are > either volatile or recognized by cannot_copy_insn_p target hook (in addition > to already present restrictions). This avoids generating incorrect assembler > with duplicate labels on ARM. > > 2011-08-04 Dmitry Melnik<dm@ispras.ru> > > * sel-sched-ir.c (init_global_and_expr_for_insn): Forbid copying of > recognized by cannot_copy_insn_p hook and volatile instructions. OK, thanks.
diff --git a/gcc/sel-sched-ir.c b/gcc/sel-sched-ir.c index 5a287d0..8f5cd3f 100644 --- a/gcc/sel-sched-ir.c +++ b/gcc/sel-sched-ir.c @@ -2956,7 +2956,10 @@ init_global_and_expr_for_insn (insn_t insn) /* Exception handling insns are always unique. */ || (cfun->can_throw_non_call_exceptions && can_throw_internal (insn)) /* TRAP_IF though have an INSN code is control_flow_insn_p (). */ - || control_flow_insn_p (insn)) + || control_flow_insn_p (insn) + || volatile_insn_p (PATTERN (insn)) + || (targetm.cannot_copy_insn_p + && targetm.cannot_copy_insn_p (insn))) force_unique_p = true; else force_unique_p = false;
From: Dmitry Melnik <dm@ispras.ru> This patch prevents duplicating (as bookkeeping code) instructions that are either volatile or recognized by cannot_copy_insn_p target hook (in addition to already present restrictions). This avoids generating incorrect assembler with duplicate labels on ARM. 2011-08-04 Dmitry Melnik <dm@ispras.ru> * sel-sched-ir.c (init_global_and_expr_for_insn): Forbid copying of recognized by cannot_copy_insn_p hook and volatile instructions.