* [PATCH] lto: set nthreads_var to 1 if it is zero
@ 2020-12-15 9:00 Martin Liška
2020-12-15 9:05 ` Jakub Jelinek
0 siblings, 1 reply; 2+ messages in thread
From: Martin Liška @ 2020-12-15 9:00 UTC (permalink / raw)
To: gcc-patches
This prevents using -j0 on target where we are unable
to detect number of core.
Ready to be installed?
Thanks,
Martin
gcc/ChangeLog:
PR lto/98275
* lto-wrapper.c: Do not use -j0 when we are unable to detect
number of cores.
---
gcc/lto-wrapper.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/gcc/lto-wrapper.c b/gcc/lto-wrapper.c
index 68ccb156521..da1305c1696 100644
--- a/gcc/lto-wrapper.c
+++ b/gcc/lto-wrapper.c
@@ -1780,6 +1780,8 @@ cont1:
{
char buf[256];
init_num_threads ();
+ if (nthreads_var == 0)
+ nthreads_var = 1;
if (verbose)
fprintf (stderr, "LTO parallelism level set to %ld\n",
nthreads_var);
--
2.29.2
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] lto: set nthreads_var to 1 if it is zero
2020-12-15 9:00 [PATCH] lto: set nthreads_var to 1 if it is zero Martin Liška
@ 2020-12-15 9:05 ` Jakub Jelinek
0 siblings, 0 replies; 2+ messages in thread
From: Jakub Jelinek @ 2020-12-15 9:05 UTC (permalink / raw)
To: Martin Liška; +Cc: gcc-patches
On Tue, Dec 15, 2020 at 10:00:35AM +0100, Martin Liška wrote:
> This prevents using -j0 on target where we are unable
> to detect number of core.
>
> Ready to be installed?
> Thanks,
> Martin
>
> gcc/ChangeLog:
>
> PR lto/98275
> * lto-wrapper.c: Do not use -j0 when we are unable to detect
> number of cores.
Ok.
Jakub
^ permalink raw reply [flat|nested] 2+ messages in thread
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