On 02/03/2026 10:59, Torbjorn SVENSSON wrote:
>
>
> On 2026-03-02 11:46, Richard Earnshaw (foss) wrote:
>> On 02/03/2026 10:42, Richard Biener wrote:
>>> On Mon, 2 Mar 2026, Torbjörn SVENSSON wrote:
>>>
>>>> Ok for trunk?
>>>
>>> OK.
>>>
>>
>> Wait!
>>
>> How is this failing for you? I'm not seeing that happen in my results.
>
> The entire test output is here:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124320#c0
>
I'm not seeing those errors on my thumb(1) runs.
Executing on host: /work/rearnsha/scratch/nightly/arm/master/gcc/xgcc
-B/work/rearnsha/scratch/nightly/arm/master/gcc/ -mthumb
-fdiagnostics-plain-output -O2 -flto -flto-partition=1to1 -c -isystem
/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/newlib/targ-include
-isystem /home/rearnsha/gnusrc/nightly/gcc-cross/master/newlib/libc/include -o
c_lto_toplevel-extended-asm-1_0.o
/home/rearnsha/gnusrc/nightly/gcc-cross/master/gcc/testsuite/gcc.dg/lto/toplevel-extended-asm-1_0.c
(timeout = 300)
spawn -ignore SIGHUP /work/rearnsha/scratch/nightly/arm/master/gcc/xgcc
-B/work/rearnsha/scratch/nightly/arm/master/gcc/ -mthumb
-fdiagnostics-plain-output -O2 -flto -flto-partition=1to1 -c -isystem
/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/newlib/targ-include
-isystem /home/rearnsha/gnusrc/nightly/gcc-cross/master/newlib/libc/include -o
c_lto_toplevel-extended-asm-1_0.o
/home/rearnsha/gnusrc/nightly/gcc-cross/master/gcc/testsuite/gcc.dg/lto/toplevel-extended-asm-1_0.c
PASS: gcc.dg/lto/toplevel-extended-asm-1 c_lto_toplevel-extended-asm-1_0.o
assemble, -O2 -flto -flto-partition=1to1
Executing on host: /work/rearnsha/scratch/nightly/arm/master/gcc/xgcc
-B/work/rearnsha/scratch/nightly/arm/master/gcc/ -mthumb
-fdiagnostics-plain-output -O2 -flto -flto-partition=1to1 -c -isystem
/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/newlib/targ-include
-isystem /home/rearnsha/gnusrc/nightly/gcc-cross/master/newlib/libc/include -o
c_lto_toplevel-extended-asm-1_1.o
/home/rearnsha/gnusrc/nightly/gcc-cross/master/gcc/testsuite/gcc.dg/lto/toplevel-extended-asm-1_1.c
(timeout = 300)
spawn -ignore SIGHUP /work/rearnsha/scratch/nightly/arm/master/gcc/xgcc
-B/work/rearnsha/scratch/nightly/arm/master/gcc/ -mthumb
-fdiagnostics-plain-output -O2 -flto -flto-partition=1to1 -c -isystem
/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/newlib/targ-include
-isystem /home/rearnsha/gnusrc/nightly/gcc-cross/master/newlib/libc/include -o
c_lto_toplevel-extended-asm-1_1.o
/home/rearnsha/gnusrc/nightly/gcc-cross/master/gcc/testsuite/gcc.dg/lto/toplevel-extended-asm-1_1.c
PASS: gcc.dg/lto/toplevel-extended-asm-1 c_lto_toplevel-extended-asm-1_1.o
assemble, -O2 -flto -flto-partition=1to1
Executing on host: /work/rearnsha/scratch/nightly/arm/master/gcc/xgcc
-B/work/rearnsha/scratch/nightly/arm/master/gcc/
c_lto_toplevel-extended-asm-1_0.o c_lto_toplevel-extended-asm-1_1.o -mthumb
-dumpbase "" -fdiagnostics-plain-output -O2 -flto -flto-partition=1to1
-isystem
/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/newlib/targ-include
-isystem /home/rearnsha/gnusrc/nightly/gcc-cross/master/newlib/libc/include
-B/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/libgloss/arm/
-L/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/libgloss/arm
-L/home/rearnsha/gnusrc/nightly/gcc-cross/master/libgloss/arm
-L/work/rearnsha/scratch/nightly/arm/master/ld
-B/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/newlib/
-L/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/newlib
--specs=sync-none.specs -Wl,-wrap,exit -Wl,-wrap,_exit -Wl,-wrap,main
-Wl,-wrap,abort -Wl,gcc_tg.o -o gcc-dg-lto-toplevel-extended-asm-1-01.exe
(timeout = 300)
spawn -ignore SIGHUP /work/rearnsha/scratch/nightly/arm/master/gcc/xgcc
-B/work/rearnsha/scratch/nightly/arm/master/gcc/
c_lto_toplevel-extended-asm-1_0.o c_lto_toplevel-extended-asm-1_1.o -mthumb
-dumpbase -fdiagnostics-plain-output -O2 -flto -flto-partition=1to1 -isystem
/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/newlib/targ-include
-isystem /home/rearnsha/gnusrc/nightly/gcc-cross/master/newlib/libc/include
-B/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/libgloss/arm/
-L/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/libgloss/arm
-L/home/rearnsha/gnusrc/nightly/gcc-cross/master/libgloss/arm
-L/work/rearnsha/scratch/nightly/arm/master/ld
-B/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/newlib/
-L/work/rearnsha/scratch/nightly/arm/master/arm-eabi/thumb/newlib
--specs=sync-none.specs -Wl,-wrap,exit -Wl,-wrap,_exit -Wl,-wrap,main
-Wl,-wrap,abort -Wl,gcc_tg.o -o gcc-dg-lto-toplevel-extended-asm-1-01.exe
lto-wrapper: warning: using serial compilation of 2 LTRANS jobs
lto-wrapper: note: see the '-flto' option documentation for more information
PASS: gcc.dg/lto/toplevel-extended-asm-1
c_lto_toplevel-extended-asm-1_0.o-c_lto_toplevel-extended-asm-1_1.o link, -O2
-flto -flto-partition=1to1
So the question is why are we seeing different behaviours here?
R.
> Kind regards,
> Torbjörn
>
>>
>> R.
>>
>>>> --
>>>>
>>>> The inline assembler in the test case is incompatible with -mthumb for
>>>> arm-none-eabi toolchains.
>>>>
>>>> gcc/testsuite/ChangeLog:
>>>>
>>>> PR testsuite/124320
>>>> * gcc.dg/lto/toplevel-extended-asm-1_0.c: Skip test for thumb
>>>> mode.
>>>>
>>>> Signed-off-by: Torbjörn SVENSSON <[email protected]>
>>>> ---
>>>> gcc/testsuite/gcc.dg/lto/toplevel-extended-asm-1_0.c | 1 +
>>>> 1 file changed, 1 insertion(+)
>>>>
>>>> diff --git a/gcc/testsuite/gcc.dg/lto/toplevel-extended-asm-1_0.c
>>>> b/gcc/testsuite/gcc.dg/lto/toplevel-extended-asm-1_0.c
>>>> index 341d95ae0d5..8988a06c0a7 100644
>>>> --- a/gcc/testsuite/gcc.dg/lto/toplevel-extended-asm-1_0.c
>>>> +++ b/gcc/testsuite/gcc.dg/lto/toplevel-extended-asm-1_0.c
>>>> @@ -1,4 +1,5 @@
>>>> /* { dg-lto-do link } */
>>>> +/* { dg-skip-if "inline assembler not compatible" { arm_thumb1 ||
>>>> arm_thumb2 } } */
>>>> /* { dg-lto-options {{-O2 -flto -flto-partition=1to1} } } */
>>>> void asm_fn();
>>>>
>>>
>>
>
