[Bug target/27263] armv5te-linux-gnueabi-gcc-4.1 fails to compile libquicktime-0.9.7-0.4/plugins/opendivx/encore50/text_code_mb.c

[rearnsha at gcc dot gnu dot org]

------- Comment #6 from rearnsha at gcc dot gnu dot org  2006-04-24 14:26 -------
Confirmed.  Also appears on trunk on an arm-elf cross with the flags:

-O3 -funroll-all-loops -fomit-frame-pointer -mno-apcs-frame -finline-functions
-mfpu=vfp -mfloat-abi=softfp -mcpu=arm926ej-s 

We are generating an invalid input reload for

(insn:HI 320 4403 4405 391 (set (mem/s:HI (plus:SI (reg:SI 318 [ ivtmp.1515 ])
                (reg/f:SI 1731)) [2 tmp S2 A16])
        (subreg:HI (reg:SI 523) 0)) 152 {*movhi_insn_arch4}
(insn_list:REG_DEP_TRUE 319 (nil))
    (expr_list:REG_DEAD (reg:SI 523)
        (nil)))

Specifically, reload 2 contains:

Reload 2: reload_in (HI) = (mem:HI (plus:SI (mult:SI (reg:SI 11 fp [orig:318
ivtmp.1515 ] [318])
                                                            (const_int 2
[0x2]))
                                                        (reg/v/f:SI 10 sl
[orig:437 rcoeff_ind ] [437])) [4 S4 A32])
        GENERAL_REGS, RELOAD_FOR_INPUT (opnum = 1), can't combine
        reload_in_reg: (subreg:HI (reg:SI 523) 0)
        reload_reg_rtx: (reg:HI 6 r6)

but that's an invalid memory address for HImode.


-- 

rearnsha at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rearnsha at gcc dot gnu dot
                   |                            |org
             Status|WAITING                     |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-04-24 14:26:03
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27263