MIPS: RegExp: Add support for table-based character class code generation.

MIPS: RegExp: Add support for table-based character class code generation.

Port r11189 (40c8cbd).

Original commit message:

RegExp: Add support for table-based character class
code generation.  This is performance neutral for
all our tests, but a factor 6 faster for the Unicode
based regexp in the new test (and much more compact
code).

BUG=
TEST=

[Erik Corry, 2012-03-31 20:10:15]

http://codereview.chromium.org/9968032/diff/1/src/mips/regexp-macro-assembler...
File src/mips/regexp-macro-assembler-mips.cc (right):

http://codereview.chromium.org/9968032/diff/1/src/mips/regexp-macro-assembler...
src/mips/regexp-macro-assembler-mips.cc:518: __ lbu(a0, MemOperand(a0));
Since lbu supports memory-displacement operation should you not use that here
and save an Addu above?

[kalmard, 2012-04-02 09:43:28]

Thanks for the review.

http://codereview.chromium.org/9968032/diff/1/src/mips/regexp-macro-assembler...
File src/mips/regexp-macro-assembler-mips.cc (right):

http://codereview.chromium.org/9968032/diff/1/src/mips/regexp-macro-assembler...
src/mips/regexp-macro-assembler-mips.cc:518: __ lbu(a0, MemOperand(a0));
On 2012/03/31 20:10:15, Erik Corry wrote:
> Since lbu supports memory-displacement operation should you not use that here
> and save an Addu above?

Done.

[Erik Corry, 2012-04-02 11:28:08]

LGTM committed as 11206, thanks.

[kalmard, 2012-04-05 08:17:48]

Thanks for landing. Closing.