Bug#187564: [Bug target/10692] [3.3/3.4 regression] [m68k] miscompilation of perl with -O2 -fPIC
------- Additional Comments From schwab at suse dot de 2004-01-11 22:30 -------
The differing line corresponds to this insn:
(insn 368 367 369 18 (set (reg:SI 280)
(plus:SI (mult:SI (reg:SI 278)
(const_int 4 [0x4]))
(reg:SI 278))) 359 {*m68k.md:6699} (insn_list 366 (nil))
(expr_list:REG_DEAD (reg:SI 278)
(nil)))
Note that it stays unmodified until global alloc, so this is a reload bug that
is just triggered by -fregmove due to the higher register pressure.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10692
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