[Bug target/49114] [x32] 454.calculix in SPEC CPU 2006 failed

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49114

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2011-05-24 05:12:46 
UTC ---
For

(insn 588 587 589 28 (set (mem:DF (zero_extend:DI (plus:SI (subreg:SI
(reg/v/f:DI 182 [ b ]) 0) 
                    (const_int 8 [0x8]))) [4 MEM[base: b_96(D), index:
D.15020_278, step: 8, offset: 0B]+0 S8 A64])
        (reg:DF 340 [ D.14980 ])) spooles.c:291 106 {*movdf_internal_rex64}
     (expr_list:REG_DEAD (reg:DF 340 [ D.14980 ])
        (nil)))

reload generates:

(note 587 586 1017 34 NOTE_INSN_DELETED)

(insn 1017 587 1020 34 (set (reg:DI 1 dx)
        (mem/c:DI (plus:DI (reg/f:DI 7 sp)
                (const_int 112 [0x70])) [5 %sfp+-208 S8 A64])) spooles.c:291 62
{*movdi_internal_rex64}
     (nil))

(insn 1020 1017 1022 34 (set (reg:SI 1 dx)
        (const_int 8 [0x8])) spooles.c:291 64 {*movsi_internal}
     (nil))

(insn 1022 1020 1023 34 (set (reg:SI 1 dx)
        (reg:SI 1 dx)) spooles.c:291 64 {*movsi_internal}
     (nil))

(insn 1023 1022 1024 34 (set (reg:SI 1 dx)
        (plus:SI (reg:SI 1 dx)
            (const_int 8 [0x8]))) spooles.c:291 248 {*lea_1_x32}
     (expr_list:REG_EQUIV (plus:SI (subreg:SI (reg:DI 1 dx) 0)
            (const_int 8 [0x8]))
        (nil)))

(insn 1024 1023 588 34 (set (reg:DI 1 dx)
        (zero_extend:DI (reg:SI 1 dx))) spooles.c:291 112
{*zero_extendsidi2_rex64}
     (expr_list:REG_EQUIV (zero_extend:DI (plus:SI (subreg:SI (reg:DI 1 dx) 0)
                (const_int 8 [0x8])))
        (nil)))

(insn 588 1024 589 34 (set (mem:DF (reg:DI 1 dx) [4 MEM[base: b_96(D), index:
D.15020_278, step: 8, offset: 0B]+0 S8 A64])
        (reg:DF 0 ax [orig:340 D.14980 ] [340])) spooles.c:291 106
{*movdf_internal_rex64}
     (nil))