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[Bug target/50751] SH Target: Displacement addressing does not work for QImode and HImode
- From: "olegendo at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 19 Mar 2012 18:59:22 +0000
- Subject: [Bug target/50751] SH Target: Displacement addressing does not work for QImode and HImode
- Auto-submitted: auto-generated
- References: <bug-50751-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50751
--- Comment #22 from Oleg Endo <olegendo at gcc dot gnu.org> 2012-03-19 18:59:22 UTC ---
Author: olegendo
Date: Mon Mar 19 18:59:16 2012
New Revision: 185534
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185534
Log:
PR target/50751
* config/sh/sh.h (CONST_OK_FOR_K04, CONST_OK_FOR_K12, DISP_ADDR_P,
DISP_ADDR_OFFSET): New macros.
* config/sh/sh.c (sh_address_cost): Add SH2A special case.
(sh_legitimate_index_p): Allow QImode displacements for non-SH2A.
(sh_legitimize_address): Add QImode displacement handling.
(sh_cannot_change_mode_class): Disallow GENERAL_REGS for SFmode
vector subregs.
(sh_secondary_reload): Add QImode displacement handling.
* config/sh/predicates.md (movsrc_no_disp_mem_operand): New predicate.
* config/sh/constraints.md (K04, Snd, Sdd): New constraints.
* config/sh/sh.md (extendqisi2): Remove constraints from expander.
(*extendqisi2_compact): Rename to *extendqisi2_compact_reg, restrict
to register operands only.
(*extendqisi2_compact_mem_disp, *extendqisi2_compact_snd): New insns.
(extendqihi2): Change insn to expander.
(*extendqihi2_compact_reg): New insn.
(movqi_i, movqi): Replace with ...
(movqi, *movqi_reg_reg, *movqi_store_mem_disp12,
*movqi_load_mem_disp, *movqi_load_mem_disp): ... these.
Add new peepholes for QImode displacement addressing.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/sh/constraints.md
trunk/gcc/config/sh/predicates.md
trunk/gcc/config/sh/sh.c
trunk/gcc/config/sh/sh.h
trunk/gcc/config/sh/sh.md