update_equiv_regs will search for (set (MEM) (REG)) where the REG is
only used in a single basic block and is always equivalent to the memory
location in that block and if moving the store from its present location
to the insn which sets REG would be safe. If those conditions are met,
then
On Fri, 2016-03-18 at 13:20 -0600, Jeff Law wrote:
> On 03/18/2016 01:16 PM, Bernd Schmidt wrote:
> > On 03/18/2016 08:14 PM, Jeff Law wrote:
> > > I also added a blurb to the dump file when we create these
> > > equivalences
> > > and included a test to verify the code fires. I verified it
> > >
On Fri, Mar 18, 2016 at 04:05:08PM -0400, David Malcolm wrote:
> On Fri, 2016-03-18 at 13:20 -0600, Jeff Law wrote:
> > On 03/18/2016 01:16 PM, Bernd Schmidt wrote:
> > > On 03/18/2016 08:14 PM, Jeff Law wrote:
> > > > I also added a blurb to the dump file when we create these
> > > > equivalences
On 03/18/2016 08:14 PM, Jeff Law wrote:
I also added a blurb to the dump file when we create these equivalences
and included a test to verify the code fires. I verified it fired on
x86 and x86-64. It may or may not fire on other targets, so I left the
test in the i386 specific subdirectory.
T
On 03/17/2016 12:23 PM, Bernd Schmidt wrote:
On 03/17/2016 06:37 PM, Jeff Law wrote:
+ bitmap seen_insns;
+ seen_insns = BITMAP_ALLOC (NULL);
You could save an allocation here by making this a bitmap_head and using
bitmap_initialize.
Done.
+ bitmap_set_bit (seen_insns, INSN_UID (i
On 03/17/2016 12:23 PM, Bernd Schmidt wrote:
On 03/17/2016 06:37 PM, Jeff Law wrote:
+ bitmap seen_insns;
+ seen_insns = BITMAP_ALLOC (NULL);
You could save an allocation here by making this a bitmap_head and using
bitmap_initialize.
+ bitmap_set_bit (seen_insns, INSN_UID (insn));
+
On 03/17/2016 02:02 PM, Jeff Law wrote:
On 03/17/2016 12:23 PM, Bernd Schmidt wrote:
On 03/17/2016 06:37 PM, Jeff Law wrote:
+ bitmap seen_insns;
+ seen_insns = BITMAP_ALLOC (NULL);
You could save an allocation here by making this a bitmap_head and using
bitmap_initialize.
+ bitmap_
On 03/17/2016 06:37 PM, Jeff Law wrote:
+ bitmap seen_insns;
+ seen_insns = BITMAP_ALLOC (NULL);
You could save an allocation here by making this a bitmap_head and using
bitmap_initialize.
+ bitmap_set_bit (seen_insns, INSN_UID (insn));
+
if (! INSN_P (insn))
continue
On 03/17/2016 12:23 PM, Bernd Schmidt wrote:
On 03/17/2016 06:37 PM, Jeff Law wrote:
+ bitmap seen_insns;
+ seen_insns = BITMAP_ALLOC (NULL);
You could save an allocation here by making this a bitmap_head and using
bitmap_initialize.
I guess so, but it's one allocation per compiled function
On 03/18/2016 01:16 PM, Bernd Schmidt wrote:
On 03/18/2016 08:14 PM, Jeff Law wrote:
I also added a blurb to the dump file when we create these equivalences
and included a test to verify the code fires. I verified it fired on
x86 and x86-64. It may or may not fire on other targets, so I left t
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