[PATCH 08/13] powerpc64le: Enforce -mabi=ibmlongdouble when -mfloat128 used

Paul E Murphy murphyp@linux.ibm.com
Mon Mar 9 14:30:20 GMT 2020



On 3/6/20 6:35 PM, Joseph Myers wrote:
> On Fri, 6 Mar 2020, Paul E. Murphy wrote:
> 
>> +# All _Float128 files should be built assuming an ibm128 long double.
>> +# Likewise, this avoids some old GCC 7 compiler bugs whereby calls
>> +# to __mulkc3 are swapped with __multc3, or worse.
>> +type-float128-CFLAGS += $(type-ldouble-CFLAGS)
> 
> When referencing compiler bugs in comments, please always give the bug
> number / exact reference to fixing commit or version to help us know in
> future when such code in glibc is obsolete with the minimum supported GCC
> version.  I'm guessing this is bug 84914.
> 

Ah, I see you've already met that bug.  That is the same bug.  It is 
unfortunate that it was closed as will not fix.  I have updated the
patch with the reference.


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