[Bug rtl-optimization/48830] [4.6 regression] unrecognized insn: storing invalid upper FP reg in SImode

2013-04-12 Thread jakub at gcc dot gnu.org 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48830



Jakub Jelinek  changed:



   What|Removed |Added



 Status|NEW |RESOLVED

 Resolution||FIXED

   Target Milestone|4.6.4   |4.7.0



--- Comment #20 from Jakub Jelinek  2013-04-12 
16:18:02 UTC ---

The 4.6 branch has been closed, fixed in GCC 4.7.0.

[Bug rtl-optimization/48830] [4.6 regression] unrecognized insn: storing invalid upper FP reg in SImode

2012-07-19 Thread ebotcazou at gcc dot gnu.org 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48830

--- Comment #19 from Eric Botcazou  2012-07-19 
15:28:24 UTC ---
> I see something similar with gcc 4.5.3 when compiling mrtg:
> 
> ./src/rateup.c:1136:1: error: insn does not satisfy its constraints:
> (insn 11219 11218 3096 307 ./src/rateup.c:913 (set (mem/c:SI (reg:DI 2 %g2) 
> [23
> %sfp+-10660 S4 A32])
> (reg:SI 65 %f33 [+4 ])) 50 {*movsi_insn} (nil))
> ./src/rateup.c:1136:1: internal compiler error: in
> reload_cse_simplify_operands, at postreload.c:396
> 
> (this has originally been reported as http://gnats.netbsd.org/46719)
> 
> Is this the samme issue? Any chance of a fix for the 4.5 branch?

This indeed looks like the same issue.  But no fix is planned for 4.5.x (the
branch is now closed) or 4.6.x (too risky).  The workaround is usually trivial
(lower the optimization level).

[Bug rtl-optimization/48830] [4.6 regression] unrecognized insn: storing invalid upper FP reg in SImode

2012-07-19 Thread martin at netbsd dot org 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48830

Martin Husemann  changed:

   What|Removed |Added

 CC||martin at netbsd dot org

--- Comment #18 from Martin Husemann  2012-07-19 
13:56:11 UTC ---
I see something similar with gcc 4.5.3 when compiling mrtg:

./src/rateup.c:1136:1: error: insn does not satisfy its constraints:
(insn 11219 11218 3096 307 ./src/rateup.c:913 (set (mem/c:SI (reg:DI 2 %g2) [23
%sfp+-10660 S4 A32])
(reg:SI 65 %f33 [+4 ])) 50 {*movsi_insn} (nil))
./src/rateup.c:1136:1: internal compiler error: in
reload_cse_simplify_operands, at postreload.c:396

(this has originally been reported as http://gnats.netbsd.org/46719)

Is this the samme issue? Any chance of a fix for the 4.5 branch?