[gcc r17-2992] XFAIL default_format_2.f90 and default_format_denormal_2.f90 on hppa*-*-hpux*

https://gcc.gnu.org/g:49d761addfa3786d36e6ffcaa62536e61a59c9fc

commit r17-2992-g49d761addfa3786d36e6ffcaa62536e61a59c9fc
Author: John David Anglin <[email protected]>
Date:   Wed Aug 5 16:21:38 2026 -0400

    XFAIL default_format_2.f90 and default_format_denormal_2.f90 on hppa*-*-hpux*
    
    On hppa*-*-hpux*, snprintf only provides 33 digits of decimal
    precision for long doubles.  This is insufficient to uniquely
    identify long double values.  As a result, these tests fail.
    
    2026-08-05  John David Anglin  <[email protected]>
    
    gcc/testsuite/ChangeLog:
    
            * gfortran.dg/default_format_2.f90: XFAIL on hppa*-*-hpux*.
            * gfortran.dg/default_format_denormal_2.f90: Likewise.

Diff:
---
 gcc/testsuite/gfortran.dg/default_format_2.f90          | 5 ++++-
 gcc/testsuite/gfortran.dg/default_format_denormal_2.f90 | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/gfortran.dg/default_format_2.f90 b/gcc/testsuite/gfortran.dg/default_format_2.f90
index dd04d3aae981..35c234120998 100644
--- a/gcc/testsuite/gfortran.dg/default_format_2.f90
+++ b/gcc/testsuite/gfortran.dg/default_format_2.f90
@@ -1,7 +1,10 @@
-! { dg-do run { xfail long_double_is_ibm128 } }
+! { dg-do run { xfail { long_double_is_ibm128 || hppa*-*-hpux* } } }
 ! { dg-require-effective-target fortran_large_real }
 ! Test XFAILed on these platforms because the system's printf() lacks
 ! proper support for denormalized long doubles. See PR24685
+! On hppa*-*-hpux*, snprintf only provides 33 digits of decimal
+! precision for long doubles.  This is insufficient to uniquely
+! identify long double values.
 !
 ! This tests that the default formats for formatted I/O of reals are
 ! wide enough and have enough precision, by checking that values can
diff --git a/gcc/testsuite/gfortran.dg/default_format_denormal_2.f90 b/gcc/testsuite/gfortran.dg/default_format_denormal_2.f90
index ae056d506a29..37d62bbfb65c 100644
--- a/gcc/testsuite/gfortran.dg/default_format_denormal_2.f90
+++ b/gcc/testsuite/gfortran.dg/default_format_denormal_2.f90
@@ -1,7 +1,10 @@
-! { dg-do run { xfail long_double_is_ibm128 } }
+! { dg-do run { xfail { long_double_is_ibm128 || hppa*-*-hpux* } } }
 ! { dg-require-effective-target fortran_large_real }
 ! Test XFAILed on this platform because the system's printf() lacks
 ! proper support for denormalized long doubles. See PR24685
+! On hppa*-*-hpux*, snprintf only provides 33 digits of decimal
+! precision for long doubles.  This is insufficient to uniquely
+! identify long double values.
 !
 ! This tests that the default formats for formatted I/O of reals are
 ! wide enough and have enough precision, by checking that values can