[Bug tree-optimization/100509] [9/10 Regression] ICE at -O3: in fold_convert_loc with variable (attribute) alias of different types

2021-06-16 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100509

--- Comment #8 from CVS Commits  ---
The releases/gcc-10 branch has been updated by Richard Biener
:

https://gcc.gnu.org/g:cd712310edc2ffeec8982ba5f9aeaa0b14e93cf1

commit r10-9921-gcd712310edc2ffeec8982ba5f9aeaa0b14e93cf1
Author: Richard Biener 
Date:   Tue May 11 10:58:35 2021 +0200

middle-end/100509 - avoid folding constant to aggregate type

When folding a constant initializer looking through aliases to
incompatible types can lead to us trying to fold a constant
to an aggregate type which can't work.  Simply avoid trying
to constant fold non-register typed symbols.

2021-05-11  Richard Biener  

PR middle-end/100509
* gimple-fold.c (fold_gimple_assign): Only call
get_symbol_constant_value on register type symbols.

* gcc.dg/pr100509.c: New testcase.

(cherry picked from commit ca8e8301180fa71de1a76769fc038df2ab85dfeb)

[Bug tree-optimization/100509] [9/10 Regression] ICE at -O3: in fold_convert_loc with variable (attribute) alias of different types

2021-06-01 Thread rguenth at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100509

Richard Biener  changed:

   What|Removed |Added

   Target Milestone|9.4 |9.5

--- Comment #7 from Richard Biener  ---
GCC 9.4 is being released, retargeting bugs to GCC 9.5.