[Bug bootstrap/31523] bootstrap xgcc internal compiler error (using -O3)

[anirkko at insel dot ch]

------- Comment #12 from anirkko at insel dot ch  2007-05-07 10:29 -------
(In reply to comment #10)
...
> Yes, I'm going to reopen it, but I'm not sure someone will tackle it.
> 

The culprit is -finline-functions:

The gcc man page says -O3 adds only 3 additional options. My bootstrapping
script tells me the bug is in -finline-functions. Base compiler = gcc-4.1.2
(itself built without error using -O2), target compiler also gcc-4.1.2, when
using -finline-functions as bootflags, the bootstrapped xgcc fails with
an ICE at exactly the same place as originally reported above.

Should -finline-functions be excluded from the default -O3 options?
(until mended. If it can't be trusted building the comopiler, can it be
trusted for anything else?)

keywords added:
  build (problem occurs during bootstrap)
  wrong-code (compiles and links xgcc, but then xgcc fails later)
  ice-on-valid-code (the xgcc above fails with ICE during the build)


-- 

anirkko at insel dot ch changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |build, ice-on-valid-code,
                   |                            |wrong-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31523