[Bug target/35193] [4.3 Regression] can't find a register in class 'R1_REGS' while reloading 'asm'

[danglin at gcc dot gnu dot org]

------- Comment #5 from danglin at gcc dot gnu dot org  2008-02-18 03:00 -------
The problem starts in the gcse1 pass:

(insn 957 956 958 139
../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:220 (set (reg/f:SI
735)
        (high:SI (symbol_ref:SI ("lock.8450") [flags 0x2] <var_decl 0x40605840
lock>))) 49 {*pa.md:3017} (nil))

(insn 958 957 962 139
../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:220 (set (reg/f:SI
743)
        (lo_sum:SI (reg/f:SI 735)
            (symbol_ref:SI ("lock.8450") [flags 0x2] <var_decl 0x40605840
lock>))) 52 {*pa.md:3097} (expr_list:REG_EQUAL (symbol_ref:SI ("lock.8450")
[flags 0x2] <var_decl 0x40605840 lock>)
        (nil)))

(insn 962 958 963 139
../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:220 (set (reg:SI 588)
        (const_int 1 [0x1])) 37 {*pa.md:2542} (nil))

(insn 963 962 964 139
../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:220 (parallel [

...

(insn 958 957 962 139
../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:
220 (set (reg/f:SI 743)
        (lo_sum:SI (reg/f:SI 735)
            (symbol_ref:SI ("lock.8450") [flags 0x2] <var_decl 0x40605840
lock>))) 52 {*pa.md:3097} (expr_list:REG_EQUAL (symbol_ref:SI ("lock.8450")
[flags 0x2] <var_decl 0x40605840 lock>)
        (nil)))

...

(insn 979 977 980 143
../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:
225 (set (reg:SI 26 %r26)
        (lo_sum:SI (reg/f:SI 735)
            (symbol_ref:SI ("lock.8450") [flags 0x2] <var_decl 0x40605840
lock>))) 52 {*pa.md:3097} (expr_list:REG_EQUAL (symbol_ref:SI ("lock.8450")
[flags 0x2] <var_decl 0x40605840 lock>)
        (nil)))

...

(insn 1055 1053 1056 154 dcigettext.c:1102 (set (reg/v:SI 26 %r26 [ __r26 ])
        (lo_sum:SI (reg/f:SI 735)
            (symbol_ref:SI ("lock.8450") [flags 0x2] <var_decl 0x40605840
lock>))) 52 {*pa.md:3097} (expr_list:REG_DEAD (reg/f:SI 735)
        (expr_list:REG_EQUAL (symbol_ref:SI ("lock.8450") [flags 0x2] <var_decl
0x40605840 lock>)
            (nil))))


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35193