[Bug testsuite/32060] New: gcc/testsuite/gcc/gcc.log - WARNING: Could not compile gcc.dg/compat/struct-layout-1 generator

[Bug testsuite/32060] New: gcc/testsuite/gcc/gcc.log - WARNING: Could not compile gcc.dg/compat/struct-layout-1 generator

[rob1weld at aol dot com]

A few broken spots in the testsuite ...

# gcc/xgcc -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: /root/downloads/gcc-4_3-trunk/configure --verbose
--enable-languages=c,ada,c++,fortran,java,objc,obj-c++ --with-tune=athlon-xp
--prefix=/usr --enable-objc-gc --enable-concept-checks --disable-multilib
--with-gxx-include-dir=/usr/include/c++/4.3 --enable-libstdcxx-debug
--enable-static --enable-shared --enable-initfini-array --enable-__cxa_atexit
--enable-threads=posix --enable-version-specific-runtime-libs --enable-libssp
--enable-libmudflap --enable-libgomp --disable-werror --enable-nls
--with-included-gettext --enable-decimal-float --with-long-double-128
--enable-debug --enable-java-gc=boehm --with-x --x-includes=/usr/X11R6/include
--x-libraries=/usr/X11R6/lib --enable-java-awt=gtk,xlib --enable-gtk-cairo
--enable-qt-peer --enable-xmlj --enable-gconf-peer --enable-tool-wrappers
--enable-portable-native-sync --enable-libgcj-multifile --with-stabs
--enable-hash-synchronization --enable-gc-debug --enable-interpreter
--with-system-zlib --enable-libada --with-tls --with-cpu=athlon-xp
--with-arch=athlon-xp
--enable-stage1-checking=assert,gc,misc,rtl,rtlflag,runtime
Thread model: posix
gcc version 4.3.0 20070523 (experimental)

---

# grep -B 5 -A 5 gcc.dg-struct-layout-1_generate gcc/testsuite/gcc/gcc.log

FAIL: gcc.dg/compat/vector-2 c_compat_x_tst.o-c_compat_y_tst.o execute 
testcase /root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/compat.exp
completed in 57 seconds
Running
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp
...
Executing on host: /opt/gcc-4_3-build/gcc/xgcc -B/opt/gcc-4_3-build/gcc/
dfprt5233.c  -fno-show-column  -lm   -o dfprt5233.x    (timeout = 300)
Setting LD_LIBRARY_PATH to
:/opt/gcc-4_3-build/gcc::/opt/gcc-4_3-build/gcc:/opt/gcc-4_3-build/i686-pc-linux-gnu/libstdc++-v3/.libs:/opt/gcc-4_3-build/i686-pc-linux-gnu/libmudflap/.libs:/opt/gcc-4_3-build/i686-pc-linux-gnu/libssp/.libs:/opt/gcc-4_3-build/i686-pc-linux-gnu/libgomp/.libs:/opt/gcc-4_3-build/./gcc:/opt/gcc-4_3-build/./prev-gcc
Executing on host: gcc -g -O2 -o
/opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1_generate 
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/struct-layout-1_generate.c
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/generate-random.c
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/generate-random_r.c  
 (timeout = 300)
WARNING: Could not compile gcc.dg/compat/struct-layout-1 generator
testcase
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp
completed in 0 seconds
Running /root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/cpp/cpp.exp ...
Executing on host: /opt/gcc-4_3-build/gcc/xgcc -B/opt/gcc-4_3-build/gcc/
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/cpp/19921210-1.c    -ansi
-pedantic-errors -fno-show-column -S  -o 19921210-1.s    (timeout = 300)
PASS: gcc.dg/cpp/19921210-1.c (test for excess errors)


The message "WARNING: Could not compile gcc.dg/compat/struct-layout-1 generator
" is "odd". The gcc.log _claims_ it is using the OS gcc to compile:

# ls -l /opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1_generate
ls: /opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1_generate: No
such file or directory

# gcc -g -O2 -o
/opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1_generate 
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/struct-layout-1_generate.c
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/generate-random.c
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/generate-random_r.c

# ls -l /opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1_generate
-rwxr-xr-x 1 root root 69791 May 23 12:48
/opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1_generate


When I cut-and-paste the gcc command from the log the generator compiles OK.
The testsuite works on 4.2.0 i686-pc-cygwin and 4.2.1 i686-pc-linux-gnu.


Point 1): Having the testsuite fail with this warning denies the testsuite from
running a whole battery of tests that the generator creates. One warning
_might_ cover-up many _possible_ errors if the test were ran (or hide many
sucesses).


Point 2): (Retorical Questions) Why do we use "gcc" ? - The OS's "gcc". Which
version are we using, do we care? Can it actually compile the tests?

We _ought_ to use gcc/xgcc ! - then we know which version of gcc we are using.

If xgcc can not compile the generator then _IT_ is at fault. If the OS's gcc
can not compile the generator then does that _actually_ matter - no.

If the program is so trivial that any compiler can compile it then why not have
xgcc do it. That makes the "warning" into an error _IF_ it fails, if it
succeeds then it is a "pass" and not a warning.

The rest of the tests can then get a chance to run instead of being denied
simply because the OS's gcc did not compile the file.


Another problem occurs immediatly after:

WARNING: Could not compile gcc.dg/compat/struct-layout-1 generator
FAIL: gcc.dg/debug/dwarf2/dwarf-dfp.c (internal compiler error)
FAIL: gcc.dg/debug/dwarf2/dwarf-dfp.c (test for excess errors)
ERROR: gcc.dg/debug/dwarf2/dwarf-dfp.c: error executing dg-final: couldn't open
"dwarf-dfp.s": no such file or directory
UNRESOLVED: gcc.dg/debug/dwarf2/dwarf-dfp.c: error executing dg-final: couldn't
open "dwarf-dfp.s": no such file or directory
FAIL: gcc.dg/dfp/Wtraditional-conversion-2.c (internal compiler error)
FAIL: gcc.dg/dfp/Wtraditional-conversion-2.c (test for excess errors)

The testsuite _CLAIMS_ it could not open the file but actually it is an ICE.

Here is a bit of the log:


# grep -A 8 testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c gcc/testsuite/gcc/gcc.log
Executing on host: /opt/gcc-4_3-build/gcc/xgcc -B/opt/gcc-4_3-build/gcc/
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c  
-O0 -gdwarf-2 -dA -fno-show-column -S  -o dwarf-dfp.s    (timeout = 300)
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c: In
function 'foo':
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c:16:
error: unrecognizable insn:
(insn 7 6 8 3
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c:15
(set (subreg:TI (reg:TD 58) 0)
        (subreg:TI (const_double:TD 0 [0x0] 1.5 [N/A]) 0)) -1 (nil)
    (nil))
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c:16:
internal compiler error: in extract_insn, at recog.c:2119
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
compiler exited with status 1
output is:
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c: In
function 'foo':
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c:16:
error: unrecognizable insn:
(insn 7 6 8 3
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c:15
(set (subreg:TI (reg:TD 58) 0)
        (subreg:TI (const_double:TD 0 [0x0] 1.5 [N/A]) 0)) -1 (nil)
    (nil))
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c:16:
internal compiler error: in extract_insn, at recog.c:2119
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

FAIL: gcc.dg/debug/dwarf2/dwarf-dfp.c (internal compiler error)
FAIL: gcc.dg/debug/dwarf2/dwarf-dfp.c (test for excess errors)
Excess errors:
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c:16:
error: unrecognizable insn:
(insn 7 6 8 3
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c:15
(set (subreg:TI (reg:TD 58) 0)
        (subreg:TI (const_double:TD 0 [0x0] 1.5 [N/A]) 0)) -1 (nil)
    (nil))
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-dfp.c:16:
internal compiler error: in extract_insn, at recog.c:2119

ERROR: gcc.dg/debug/dwarf2/dwarf-dfp.c: error executing dg-final: couldn't open
"dwarf-dfp.s": no such file or directory
UNRESOLVED: gcc.dg/debug/dwarf2/dwarf-dfp.c: error executing dg-final: couldn't
open "dwarf-dfp.s": no such file or directory
Executing on host: /opt/gcc-4_3-build/gcc/xgcc -B/opt/gcc-4_3-build/gcc/
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-die1.c  
-O2 -gdwarf-2 -dA -fno-show-column -S  -o dwarf-die1.s    (timeout = 300)
PASS: gcc.dg/debug/dwarf2/dwarf-die1.c (test for excess errors)
PASS: gcc.dg/debug/dwarf2/dwarf-die1.c scan-assembler-not DW_AT_inline
Executing on host: /opt/gcc-4_3-build/gcc/xgcc -B/opt/gcc-4_3-build/gcc/
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-die2.c  
-O0 -gdwarf-2 -dA -fno-show-column -S  -o dwarf-die2.s    (timeout = 300)
PASS: gcc.dg/debug/dwarf2/dwarf-die2.c (test for excess errors)


This little section of the testsuite needs a once over.


-- 
           Summary: gcc/testsuite/gcc/gcc.log - WARNING: Could not compile
                    gcc.dg/compat/struct-layout-1 generator
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rob1weld at aol dot com
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32060

[Bug testsuite/32060] gcc/testsuite/gcc/gcc.log - WARNING: Could not compile gcc.dg/compat/struct-layout-1 generator

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2007-06-10 03:14 -------
> Point 2): (Retorical Questions) Why do we use "gcc" ? - The OS's "gcc". Which
> version are we using, do we care? Can it actually compile the tests?

Because this has to be the build compiler, otherwise it is hard to test using
the just created xgcc (if build!=host!=target)

Also this works for me.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32060

[Bug testsuite/32060] gcc/testsuite/gcc/gcc.log - WARNING: Could not compile gcc.dg/compat/struct-layout-1 generator

[rob1weld at aol dot com]

------- Comment #2 from rob1weld at aol dot com  2007-06-11 17:18 -------
>> "has to be the build compiler". 
>OK.


A new error has popped up in this same section of the log between the compiling
and execution of gcc.dg-struct-layout-1 .


Running
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp
...
Executing on host: /opt/gcc-4_3-build/gcc/xgcc -B/opt/gcc-4_3-build/gcc/
dfprt27268.c  -fno-show-column  -lm   -o dfprt27268.x    (timeout = 300)
Setting LD_LIBRARY_PATH to
:/opt/gcc-4_3-build/gcc::/opt/gcc-4_3-build/gcc:/opt/gcc-4_3-build/i686-pc-linux-gnu/libstdc++-v3/.libs:/opt/gcc-4_3-build/i686-pc-linux-gnu/libmudflap/.libs:/opt/gcc-4_3-build/i686-pc-linux-gnu/libssp/.libs:/opt/gcc-4_3-build/i686-pc-linux-gnu/libgomp/.libs:/opt/gcc-4_3-build/./gcc:/opt/gcc-4_3-build/./prev-gcc
Executing on host: gcc -g -O2 -ffloat-store -mfpmath=sse -march=athlon-xp
-msse2 -o /opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1_generate 
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/struct-layout-1_generate.c
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/generate-random.c
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat/generate-random_r.c  
 (timeout = 300)
Executing on host: /opt/gcc-4_3-build/gcc/xgcc -B/opt/gcc-4_3-build/gcc/
short_enums27268.c  -fno-show-column -S  -o short_enums27268.s    (timeout =
300)
short_enums27268.c:3: error: size of array 's' is negative
compiler exited with status 1
output is:
short_enums27268.c:3: error: size of array 's' is negative

Executing on host:
/opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1_generate -s
/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat -d
/opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1    (timeout = 300)
Executing on host: /opt/gcc-4_3-build/gcc/xgcc -B/opt/gcc-4_3-build/gcc/ 
-I/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat  -fno-show-column
-c  -o c_compat_main_tst.o
/opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1/t001_main.c   
(timeout = 300)
PASS: tmpdir-gcc.dg-struct-layout-1/t001 c_compat_main_tst.o compile
Executing on host: /opt/gcc-4_3-build/gcc/xgcc -B/opt/gcc-4_3-build/gcc/  -w
-I/root/downloads/gcc-4_3-trunk/gcc/testsuite/gcc.dg/compat  -fno-show-column
-c  -o c_compat_x_tst.o
/opt/gcc-4_3-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1//t001_x.c   
(timeout = 300)
PASS: tmpdir-gcc.dg-struct-layout-1/t001 c_compat_x_tst.o compile


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32060