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[Bug target/51552] bfin generates bad assembly
- From: "jiez at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 21 Dec 2011 04:35:19 +0000
- Subject: [Bug target/51552] bfin generates bad assembly
- Auto-submitted: auto-generated
- References: <bug-51552-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51552
--- Comment #2 from Jie Zhang <jiez at gcc dot gnu.org> 2011-12-21 04:35:19 UTC ---
(gdb) p insn
$23 = (rtx) 0x7ffff701b180
(gdb) pr
(parallel [
(unspec [
(const_int -4 [0xfffffffffffffffc])
] 5)
(set/f (mem:SI (plus:SI (reg/f:SI 14 SP)
(const_int -4 [0xfffffffffffffffc])) [0 S4 A32])
(reg:SI 7 R7))
(set/f (reg/f:SI 14 SP)
(plus:SI (reg/f:SI 14 SP)
(const_int -4 [0xfffffffffffffffc])))
Before that commit, dwarf2out_frame_debug_expr (insn) will set any_cfis_emitted
in dwarf2out_frame_debug, which will cause dwarf2out_flush_queued_reg_saves to
emit the CFI. But after that commit, dwarf2out_frame_debug_expr (insn) will not
set any_cfis_emitted.