--- Additional Comments From falk at debian dot org 2005-07-19 14:12
---
The unrolling part of the report was moved to PR 16962, and the 128-bit part is
fixed, so closing.
--
What|Removed |Added
---
--- Additional Comments From jh at suse dot cz 2005-07-18 12:45 ---
Subject: Re: Poor x86-64 performance with 128bit ints
>
> --- Additional Comments From steven at gcc dot gnu dot org 2005-07-18
> 07:47 ---
> The 128 bits arithmetic has improved now:
>
> typedef unsigned
--- Additional Comments From steven at gcc dot gnu dot org 2005-07-18
07:56 ---
The code for the second test case is also much better. The code produced
for the test3 case does not look like what you want it to produce. Probably
the inline asm constraints are not correct.
Note tha
--- Additional Comments From steven at gcc dot gnu dot org 2005-07-18
07:47 ---
The 128 bits arithmetic has improved now:
typedef unsigned long mp_word __attribute__ ((mode(TI)));
mp_word a, b;
void test(void) { a += b; }
test:
movqa(%rip), %rax
addq
