[Bug tree-optimization/88074] [7/8 Regression] g++ hangs on math expression

2019-04-30 Thread jakub at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88074

--- Comment #34 from Jakub Jelinek  ---
Author: jakub
Date: Tue Apr 30 20:28:56 2019
New Revision: 270712

URL: https://gcc.gnu.org/viewcvs?rev=270712&root=gcc&view=rev
Log:
Backported from mainline
2019-02-20  Jakub Jelinek  

PR middle-end/88074
PR middle-end/89415
* toplev.c (do_compile): Double the emin/emax exponents to workaround
buggy mpc_norm.

* gcc.dg/pr88074-2.c: New test.

2019-02-19  Richard Biener  

PR middle-end/88074
* toplev.c (do_compile): Initialize mpfr's exponent range
based on available float modes.

* gcc.dg/pr88074.c: New testcase.

Added:
branches/gcc-8-branch/gcc/testsuite/gcc.dg/pr88074-2.c
branches/gcc-8-branch/gcc/testsuite/gcc.dg/pr88074.c
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/testsuite/ChangeLog
branches/gcc-8-branch/gcc/toplev.c

[Bug tree-optimization/88074] [7/8 Regression] g++ hangs on math expression

2019-02-22 Thread jakub at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88074

--- Comment #33 from Jakub Jelinek  ---
Author: jakub
Date: Sat Feb 23 00:14:52 2019
New Revision: 269139

URL: https://gcc.gnu.org/viewcvs?rev=269139&root=gcc&view=rev
Log:
PR middle-end/88074
* simplify.c (norm2_do_sqrt, gfc_simplify_norm2): Use
mpfr_number_p && !mpfr_zero_p instead of mpfr_regular_p.
(norm2_add_squared): Likewise.  Use mp_exp_t rather than mpfr_exp_t.

Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/simplify.c

[Bug tree-optimization/88074] [7/8 Regression] g++ hangs on math expression

2019-02-20 Thread jakub at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88074

--- Comment #32 from Jakub Jelinek  ---
Author: jakub
Date: Wed Feb 20 22:41:26 2019
New Revision: 269055

URL: https://gcc.gnu.org/viewcvs?rev=269055&root=gcc&view=rev
Log:
PR middle-end/88074
PR middle-end/89415
* toplev.c (do_compile): Double the emin/emax exponents to workaround
buggy mpc_norm.

* gcc.dg/pr88074-2.c: New test.

Added:
trunk/gcc/testsuite/gcc.dg/pr88074-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/toplev.c

[Bug tree-optimization/88074] [7/8 Regression] g++ hangs on math expression

2019-02-19 Thread rguenth at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88074

Richard Biener  changed:

   What|Removed |Added

  Known to work||9.0
Summary|[7/8/9 Regression] g++  |[7/8 Regression] g++ hangs
   |hangs on math expression|on math expression

--- Comment #31 from Richard Biener  ---
Fixed on trunk.