[Bug target/100909] [12 Regression] powerpc64le: Regression causing unexpected error with IBM long double

[bergner at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100909

Peter Bergner <bergner at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
                 CC|                            |bergner at gcc dot gnu.org,
                   |                            |marxin at gcc dot gnu.org,
                   |                            |segher at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2021-06-04

--- Comment #1 from Peter Bergner <bergner at gcc dot gnu.org> ---
Confirmed.  creduce on the attached test case gives me:

bergner@pike:~/gcc/BUGS/PR100909$ cat pr100909.i
void __attribute__((__optimize__("O2"))) a() { }

bergner@pike:~/gcc/BUGS/PR100909$
/home/bergner/gcc/build/gcc-fsf-mainline-pr100799-debug/gcc/xgcc
-B/home/bergner/gcc/build/gcc-fsf-mainline-pr100799-debug/gcc -S 
-mlong-double-128 -mabi=ibmlongdouble pr100909.i 
pr100909.i:1:1: error: ‘-mabi=ibmlongdouble’ requires ‘-mlong-double-128’
    1 | void __attribute__((__optimize__("O2"))) a() { }
      | ^~~~
pr100909.i: In function ‘a’:
pr100909.i:1:1: error: ‘-mabi=ibmlongdouble’ requires ‘-mlong-double-128’
pr100909.i:1:1: error: ‘-mabi=ibmlongdouble’ requires ‘-mlong-double-128’
pr100909.i:1:42: error: ‘-mabi=ibmlongdouble’ requires ‘-mlong-double-128’
    1 | void __attribute__((__optimize__("O2"))) a() { }
      |                                          ^
pr100909.i:1:42: error: ‘-mabi=ibmlongdouble’ requires ‘-mlong-double-128’