On 08/07/2012 02:22 AM, Steven Bosscher wrote:
Hello,
In the test case for PR54146, build_insn_chain spends almost all its
time in this loop:
FOR_EACH_BB_REVERSE (bb)
{
bitmap_iterator bi;
rtx insn;
CLEAR_REG_SET (live_relevant_regs);
--> memset (live_subregs_use
Hello,
In the test case for PR54146, build_insn_chain spends almost all its
time in this loop:
FOR_EACH_BB_REVERSE (bb)
{
bitmap_iterator bi;
rtx insn;
CLEAR_REG_SET (live_relevant_regs);
--> memset (live_subregs_used, 0, max_regno * sizeof (int));
The test case has >4
