diff options
| author | claziss <claziss@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-01-25 11:15:58 +0000 |
|---|---|---|
| committer | claziss <claziss@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-01-25 11:15:58 +0000 |
| commit | 7ce15a25e13f6fea156c366e813e156bff917b14 (patch) | |
| tree | a518e7e353c9e58626c676f4a558352d9ee4df96 /gcc/doc | |
| parent | f34cae5b3e267951ba3ade328bf4dcd0e4d3e628 (diff) | |
| download | gcc-7ce15a25e13f6fea156c366e813e156bff917b14.tar.gz | |
[ARC] Add basic support for double load and store instructions
gcc/
2016-01-25 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.c (TARGET_DWARF_REGISTER_SPAN): Define.
(arc_init): Check validity mll64 option.
(arc_save_restore): Use double load/store instruction.
(arc_expand_movmem): Likewise.
(arc_split_move): Don't split if we have double load/store
instructions. Returns a boolean.
(arc_process_double_reg_moves): Change function to return boolean
instead of a sequence of instructions.
(arc_dwarf_register_span): New function.
* config/arc/arc-protos.h (arc_split_move): Change prototype.
* config/arc/arc.h (TARGET_CPU_CPP_BUILTINS): Define __ARC_LL64__.
* config/arc/arc.md (*movdi_insn): Emit ldd/std instructions.
(*movdf_insn): Likewise.
* config/arc/arc.opt (mll64): New option.
* config/arc/predicates.md (even_register_operand): New predicate.
* doc/invoke.texi (ARC Options): Add mll64 documentation.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@232788 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index d2819753de2..ba0b4b2cd56 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -599,7 +599,7 @@ Objective-C and Objective-C++ Dialects}. -mmixed-code -mq-class -mRcq -mRcw -msize-level=@var{level} @gol -mtune=@var{cpu} -mmultcost=@var{num} @gol -munalign-prob-threshold=@var{probability} -mmpy-option=@var{multo} @gol --mdiv-rem -mcode-density} +-mdiv-rem -mcode-density -mll64} @emph{ARM Options} @gccoptlist{-mapcs-frame -mno-apcs-frame @gol @@ -13259,6 +13259,10 @@ Enable DIV/REM instructions for ARCv2 cores. @opindex mcode-density Enable code density instructions for ARC EM, default on for ARC HS. +@item -mll64 +@opindex mll64 +Enable double load/store operations for ARC HS cores. + @item -mmpy-option=@var{multo} @opindex mmpy-option Compile ARCv2 code with a multiplier design option. @samp{wlh1} is |