[Bug target/34807] New: SH4 �R0_REGS� spill failure when using asm

[chrbr at gcc dot gnu dot org]

Building the attached file (extracted and reduced from the uclibc) with
-O[1,2,3,s] -fPIC fails :

test.c: In function ‘_start’:
test.c:14: error: unable to find a register to spill in class ‘R0_REGS’
test.c:14: error: this is the insn:
(insn 16 28 17 0 (set (mem/c/i:SI (plus:SI (reg:SI 12 r12)
                (reg/f:SI 1 r1 [160])) [0 buf+0 S4 A32])
        (reg/v:SI 0 r0 [ __sc0 ])) 179 {movsi_ie} (insn_list:REG_DEP_TRUE 13
(insn_list:REG_DEP_TRUE 11 (nil)))
    (expr_list:REG_DEAD (reg/f:SI 1 r1 [160])
        (expr_list:REG_DEAD (reg/v:SI 0 r0 [ __sc0 ])
            (nil))))
test.c:14: internal compiler error: in spill_failure


-- 
           Summary: SH4 ‘R0_REGS’ spill failure when using asm
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: chrbr at gcc dot gnu dot org
        ReportedBy: chrbr at gcc dot gnu dot org
GCC target triplet: sh-superh-elf,sh4-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34807