Andreas Schwab writes:
> Jiong Wang <jiong.w...@arm.com> writes:
>
>> I Just finished several round of rebuild & testing on clean
>> environment.
>
> How did you even manage to compile it?
>
> ../../gcc/ira.c: In function 'void print_translated_classes(FILE*, bool)':
> ../../gcc/ira.c:1415:49: error: iteration 8u invokes undefined behavior
> [-Werror=aggressive-loop-optimizations]
> fprintf (f, " %s -> %s\n", reg_class_names[i],
> ^
> ../../gcc/ira.c:1414:17: note: containing loop
> for (i = 0; i < N_REG_CLASSES; i++)
> ^
>
> Andreas.
What I have done on a clean environment:
1. checkout e5c427f3245ff69d8b014d4ff170715962178151 which might be
the commit cause the trouble.
mkdir build-dir1
configure/build/check-go in build-dir1
(configuation options --enable-languages=c,c++,fortran,go
--prefix=/home/jiowan01/COMMUNITY/install-gcc-native-reference
--disable-bootstrap)
and I do see lots of go failures.
2. checkout the one commit before this wrong commit.
re-done everything in a new build-dir2
check-go OK
3. applied my new tlsdesc patch
re-done everything in a new build-dir3
check-go OK
4. checkout
commit 8b221598008f60621859caee561e8466e80049f7
Author: jiwang <jiwang@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon Aug 10 10:06:28 2015 +0000
[AArch64] Recommit correct version for improving TLS descriptor
pattern
re-done everything in a new build-dir4
check-go OK
my host gcc is "gcc version 4.8.2 (Ubuntu/Linaro 4.8.2-19ubuntu1)", I
guess you have enabled bootstrap.
--
Regards,
Jiong
