[Bug target/38621] [4.3 Regression] sh gcc unable to spill register when building ghostscript-gpl

[vapier at gentoo dot org]

------- Comment #1 from vapier at gentoo dot org  2008-12-24 14:59 -------
Created an attachment (id=16980)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16980&action=view)
gdevifno.i

$ sh4-unknown-linux-gnu-gcc -c gdevifno.i -O2
gdevifno.i: In function ‘inferno_rgb2cmap’:
gdevifno.i:41: error: unable to find a register to spill in class ‘R0_REGS’
gdevifno.i:41: error: this is the insn:
(insn:HI 19 61 46 2 gdevifno.i:39 (set (mem/s:SI (plus:SI (reg/v/f:SI 4 r4
[orig:161 bdev ] [161])
                (reg/f:SI 1 r1 [167])) [3 S4 A32])
        (reg:SI 2 r2 [169])) 172 {movsi_ie} (expr_list:REG_DEAD (reg:SI 2 r2
[169])
        (expr_list:REG_DEAD (reg/f:SI 1 r1 [167])
            (expr_list:REG_DEAD (reg/v/f:SI 4 r4 [orig:161 bdev ] [161])
                (expr_list:REG_EQUAL (const_int 1 [0x1])
                    (nil))))))
gdevifno.i:41: confused by earlier errors, bailing out


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38621