[Bug c/38793] New: SH: unable to find a register to spill in class 'R0_REGS'

[masaki dot chikama at gmail dot com]

gcc4.3.3 snapshot fail to compile with this message.

ada-lex.l:456: error: unable to find a register to spill in class 'R0_REGS'
ada-lex.l:456: error: this is the insn:
(insn:HI 249 374 275 48 ada-lex.l:451 (set (mem:QI (plus:SI (reg/v/f:SI 12 r12
[
orig:174 value ] [174])
                (reg:SI 2 r2 [orig:171 prephitmp.1236 ] [171])) [0 S1 A8])
        (reg:QI 1 r1 [244])) 182 {movqi_i} (expr_list:REG_DEAD (reg:QI 1 r1
[244
])
        (expr_list:REG_DEAD (reg/v/f:SI 12 r12 [orig:174 value ] [174])
            (expr_list:REG_DEAD (reg:SI 2 r2 [orig:171 prephitmp.1236 ] [171])
                (expr_list:REG_EQUAL (const_int 0 [0x0])
                    (nil))))))
ada-lex.l:456: confused by earlier errors, bailing out
Preprocessed source stored into /tmp/cccHZxYV.out file, please attach this to
yo
ur bugreport.

$ sh4-unknown-linux-gnu-gcc  -v
Using built-in specs.
Target: sh4-unknown-linux-gnu
Configured with:
/home/chika/tmp/cross/gcc/crosstool-snv/targets/src/gcc-4.3.3/configure
--build=x86_64-unknown-linux-gnu --target=sh4-unknown-linux-gnu
--host=x86_64-unknown-linux-gnu
--prefix=/home/chika/x-tools/sh4-unknown-linux-gnu
--with-sysroot=/home/chika/x-tools/sh4-unknown-linux-gnu/sh4-unknown-linux-gnu/sys-root
--enable-languages=c,c++,fortran,java,objc,obj-c++ --disable-multilib
--with-gmp=/home/chika/x-tools/sh4-unknown-linux-gnu
--with-mpfr=/home/chika/x-tools/sh4-unknown-linux-gnu --enable-__cxa_atexit
--with-local-prefix=/home/chika/x-tools/sh4-unknown-linux-gnu/sh4-unknown-linux-gnu/sys-root
--disable-nls --enable-threads=posix --enable-symvers=gnu --enable-c99
--enable-long-long --enable-target-optspace
Thread model: posix
gcc version 4.3.3 20090109 (prerelease) (GCC)


-- 
           Summary: SH: unable to find a register to spill in class
                    'R0_REGS'
           Product: gcc
           Version: 4.3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: masaki dot chikama at gmail dot com
GCC target triplet: sh-*-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38793