[Bug tree-optimization/90020] [8 regression] -O2 -Os x86-64 wrong code generated for GNU Emacs

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90020

Martin Liška  changed:

   What|Removed |Added

 Status|UNCONFIRMED |ASSIGNED
   Last reconfirmed||2019-04-09
 CC||marxin at gcc dot gnu.org
 Ever confirmed|0   |1

--- Comment #2 from Martin Liška  ---
Let me take a look.

[Bug tree-optimization/90020] [8 regression] -O2 -Os x86-64 wrong code generated for GNU Emacs

[eggert at cs dot ucla.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90020

--- Comment #1 from eggert at cs dot ucla.edu ---
Created attachment 46107
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46107=edit
gcc -O2 -Os compiled output for x86-64

The attached x.s file shows the incorrect generated code, compiled with gcc -O2
-Os.