Hi Jeff:
I have already fixed the bug. this occurs due to register
allocation failed in function global_alloc. After calling the
find_reg(), the reg_renumber still keep the value -1 in it. So the
reload() in reload1.c delete the insns.
I didn't set any call saved registers which means ever
On 12/06/09 20:10, daniel tian wrote:
You might start by monitoring emit_reload_insns's behavior when it handles
your insn.
I just debug the source code with your advice. Check the function
emit_reload_insns.
That insn was deleted before entering funcion emit_reload_insns. It
was deleted
>
> You might start by monitoring emit_reload_insns's behavior when it handles
> your insn.
I just debug the source code with your advice. Check the function
emit_reload_insns.
That insn was deleted before entering funcion emit_reload_insns. It
was deleted in reload(...) in reload1.c file just bef
On 12/05/09 01:01, daniel tian wrote:
Yeah. The Move Symbol to R0 register is deleted, which is weird.
And I still can not figure out why. Which means I still need to dig it.
But I found when I used the gcc-4.0.2 version, the Call insn call the
function direction
call the function symbol which is
> Yeah. The Move Symbol to R0 register is deleted, which is weird.
> And I still can not figure out why. Which means I still need to dig it.
> But I found when I used the gcc-4.0.2 version, the Call insn call the
> function direction
> call the function symbol which is OK.
> I mean how gcc determin
> When a pseudo which has an equivalent form (via the REG_EQUIV note) fails to
> get a hard register, reload deletes the insn which sets the pseudo and
> instead will reload the equivalent form into a suitable hard register prior
> to use points.
>
> What you want to do is look at the reloads gener
On 12/02/09 05:29, daniel tian wrote:
Hi,
Addition information, I just found. It was deleted in function: void
set_insn_deleted (rtx insn), in emit-rtl.c.
It is called by reload() in reload1.c.
Here is the code in reload():
/* If a pseudo has no hard reg, delete the insns that made the
daniel tian writes:
> Addition information, I just found. It was deleted in function: void
> set_insn_deleted (rtx insn), in emit-rtl.c.
You need to figure out how register 42 in the call insn got changed to
register 0 if reg_renumber[42] was not set to 0.
Ian
Hi,
Addition information, I just found. It was deleted in function: void
set_insn_deleted (rtx insn), in emit-rtl.c.
It is called by reload() in reload1.c.
Here is the code in reload():
/* If a pseudo has no hard reg, delete the insns that made the equivalence.
If that insn didn't set t
Hi,
I met a bug in my gcc porting. It work fine when executing with -O0.
But with -Os, there is a insn missed. I dumped the RTL and checked them.
When in movebug.c.175r.lreg, it is fine. But in next phase --
movebug.c.176r.greg, the insn missed.
Here is the simple c program (movebu
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