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[Bug target/19161] No emms or femms emitted between MMX and FP instructions
- From: "pluto at agmk dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Sep 2005 13:10:58 -0000
- Subject: [Bug target/19161] No emms or femms emitted between MMX and FP instructions
- References: <20041226201629.19161.rth@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pluto at agmk dot net 2005-09-22 13:10 -------
Uros,
The mode switching patch ICEs current mainline on ix86.
gcc fbmmx.i -msse -O0,-O1 fails with different insn-errors.
[ -msse -O0 ]
fbmmx.c: In function ‘_cairo_pixman_composite_src_add_8000x8000mmx’:
fbmmx.c:2169: error: unable to find a register to spill in class ‘MMX_REGS’
fbmmx.c:2169: error: this is the insn:
(insn 174 172 175 7 (set (reg:V8QI 59 [ D.8903 ])
(mem/c/i:V8QI (plus:SI (reg/f:SI 20 frame)
(const_int -16 [0xfffffff0])) [0 __m2+0 S8 A32])) 776
{*movv8qi_internal} (nil)
(nil))
fbmmx.c:2169: internal compiler error: in spill_failure, at reload1.c:1890
[ -msse -O1 ]
fbmmx.c: In function ‘_cairo_pixman_composite_src_add_8000x8000mmx’:
fbmmx.c:2169: error: unable to find a register to spill in class ‘MMX_REGS’
fbmmx.c:2169: error: this is the insn:
(insn 166 165 169 9 (set (reg:V8QI 167)
(us_plus:V8QI (mem:V8QI (reg/v/f:SI 4 si [orig:120 src ] [120]) [0 S8
A64])
(mem:V8QI (reg/v/f:SI 2 cx [orig:122 dst ] [122]) [0 S8 A64])))
812 {mmx_usaddv8qi3} (nil)
(nil))
fbmmx.c:2169: internal compiler error: in spill_failure, at reload1.c:1890
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19161