c/6762: ia64 cross-compiler regression building libgcc

c/6762: ia64 cross-compiler regression building libgcc

[jnaset]

>Number:         6762
>Category:       c
>Synopsis:       ia64 cross-compiler regression building libgcc
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Tue May 21 19:06:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     jnaset@rsn.hp.com
>Release:        GCC 3.1 release
>Organization:
>Environment:
HP-UX 11.11, V-2600, native GCC 3.1 compiler producing PA-RISC 2.0 64-bit code
>Description:
Occurs while using native GCC 3.1 compiler to produce a GCC 3.1 cross-compiler (C language only).

Configuration: --host=hppa2.0w-hp-hpux11.11 --prefix=/opt/gnu-ia --enable-languages=c --target=ia64-linux-linux-gnu

After configuration with above parameters and executing gmake, we eventually try to build libgcc, specifically _muldi3.o.  We get this problem:

/work_z/jnaset/gcc-3.1/ia64/gcc/xgcc -B/work_z/jnaset/gcc-3.1/ia64/gcc/ -B/opt/gnu-ia/ia64-linux-linux-gnu/bin/ -B/opt/gnu-ia/ia64-linux-linux-gnu/lib/ -isystem /opt/gnu-ia/ia64-linux-linux-gnu/include -O2  -DIN_GCC -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -fPIC -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../gcc -I../../gcc/. -I../../gcc/config -I../../gcc/../include  -DL_muldi3 -c ../../gcc/libgcc2.c -o libgcc/./_muldi3.o
In file included from ../../gcc/libgcc2.c:39:
../../gcc/machmode.h:41: size of array `mode_name' is too large
../../gcc/machmode.h:41: confused by earlier errors, bailing out
gmake[2]: *** [libgcc/./_muldi3.o] Error 1
gmake[2]: Leaving directory `/work_z/jnaset/gcc-3.1/ia64/gcc'
gmake[1]: *** [libgcc.a] Error 2
gmake[1]: Leaving directory `/work_z/jnaset/gcc-3.1/ia64/gcc'
gmake: *** [all-gcc] Error 2


I have enclosed _muldi3.i, which is preprocessed source from libgcc2.c.

Compiling _muldi3.i with the built xgcc fails as above, while compiling _muldi3.i with our existing gcc cross-compiler (snapshot 20020304) succeeds.  It appears that the _muldi3.i file contains valid code, and the compiler should compile it.

I think this represents a regression from the state of the IA-64 cross-compiler as of 20020304.
>How-To-Repeat:
Build a gcc 3.1 native compiler [on HP-UX].

Use the 3.1 native compiler to build a cross-compiler for the ia64-linux-linux-gnu target.  The build will fail while building _muldi3.o.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="_muldi3.i"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="_muldi3.i"

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