optimization/3623: sparcv9: Insn does not satisfy its constraints

[leto at calodox dot org]

>Number:         3623
>Category:       optimization
>Synopsis:       sparcv9: Insn does not satisfy its constraints
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Mon Jul 09 08:16:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Julien Pilet
>Release:        3.0
>Organization:
>Environment:
System: SunOS unknown 5.8 Generic_108528-06 sun4u sparc SUNW,Sun-Blade-100
Architecture: sun4
host: sparcv9-sun-solaris2.8
build: sparcv9-sun-solaris2.8
target: sparcv9-sun-solaris2.8
configured with: ../gcc-3.0/configure --program-suffix=3 --host=sparcv9-sun-solaris2.8
>Description:
gcc -v -save-temps -Wall -O3 -c small.cpp
gives:

Reading specs from /usr/local/lib/gcc-lib/sparcv9-sun-solaris2.8/3.0/specs
Configured with: ../gcc-3.0/configure --program-suffix=3 --host=sparcv9-sun-solaris2.8
Thread model: posix
gcc version 3.0
 /usr/local/lib/gcc-lib/sparcv9-sun-solaris2.8/3.0/cpp0 -lang-c++ -D__GNUG__=3 -D__GXX_DEPRECATED -D__EXCEPTIONS -D__GXX_ABI_VERSION=100 -v -D__GNUC__=3 -D__GNUC_MINOR__=0 -D__GNUC_PATCHLEVEL__=0 -Dsparc -Dsun -Dunix -D__svr4__ -D__SVR4 -D__sparc__ -D__sun__ -D__unix__ -D__svr4__ -D__SVR4 -D__sparc -D__sun -D__unix -Asystem=unix -Asystem=svr4 -D__OPTIMIZE__ -D__STDC_HOSTED__=1 -Wall -D_XOPEN_SOURCE=500 -D_LARGEFILE_SOURCE=1 -D_LARGEFILE64_SOURCE=1 -D__EXTENSIONS__ -D__SIZE_TYPE__=long unsigned int -D__PTRDIFF_TYPE__=long int -D__WCHAR_TYPE__=int -D__WINT_TYPE__=int -D__arch64__ -Acpu=sparc64 -Amachine=sparcv9 -D__sparcv9 small.cpp small.ii
GNU CPP version 3.0 (cpplib) (sparc)
ignoring nonexistent directory "/usr/local/sparcv9-sun-solaris2.8/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include/g++-v3
 /usr/local/include/g++-v3/sparcv9-sun-solaris2.8
 /usr/local/include/g++-v3/backward
 /usr/local/include
 /usr/local/lib/gcc-lib/sparcv9-sun-solaris2.8/3.0/include
 /usr/include
End of search list.
 /usr/local/lib/gcc-lib/sparcv9-sun-solaris2.8/3.0/cc1plus -fpreprocessed small.ii -quiet -dumpbase small.cpp -O3 -Wall -version -o small.s
GNU CPP version 3.0 (cpplib) (sparc)
GNU C++ version 3.0 (sparcv9-sun-solaris2.8)
        compiled by GNU C version 2.95.3 20010315 (release).
small.cpp: In function `mat4 operator*(mat4&, mat4&)':
small.cpp:81: Insn does not satisfy its constraints:
(insn 2183 2180 770 (set (reg:SF 70 %f38 [374])
        (mem:SF (plus:DI (reg/f:DI 30 %fp)
                (const_int 2031 [0x7ef])) 0)) 84 {*movsf_insn_novis} (nil)
    (nil))
small.cpp:81: Internal compiler error in reload_cse_simplify_operands, at
   reload1.c:8355
>How-To-Repeat:
gcc -v -save-temps -Wall -O3 -c small.cpp
on sparcv9 (-m64)
(see attachment).
>Fix:
This ICE only occurs with -O3 (-O2 works, -O3 on x86 works).
using -m32 solves the pb, too.
>Release-Note:
>Audit-Trail:
>Unformatted:
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