MIPS: Improve integer multiplication.

MIPS: Improve integer multiplication.

Port r16576 (8ce78a4)

TEST=test/mjsunit/lithium/MulI.js
BUG=

[Paul Lind, 2013-09-27 14:51:45]

LGTM, but please fix the nits.

https://codereview.chromium.org/25050002/diff/1/src/mips/lithium-codegen-mips.cc
File src/mips/lithium-codegen-mips.cc (right):

https://codereview.chromium.org/25050002/diff/1/src/mips/lithium-codegen-mips...
src/mips/lithium-codegen-mips.cc:1456: // Correct the sign of the result is the
constant is negative.
nit, typo in comment: first 'is' -> 'if'

https://codereview.chromium.org/25050002/diff/1/src/mips/lithium-codegen-mips...
src/mips/lithium-codegen-mips.cc:1462: // Correct the sign of the result is the
constant is negative.
nit: first 'is' -> 'if'

[kilvadyb, 2013-09-27 15:54:06]

https://codereview.chromium.org/25050002/diff/1/src/mips/lithium-codegen-mips.cc
File src/mips/lithium-codegen-mips.cc (right):

https://codereview.chromium.org/25050002/diff/1/src/mips/lithium-codegen-mips...
src/mips/lithium-codegen-mips.cc:1456: // Correct the sign of the result is the
constant is negative.
On 2013/09/27 14:51:45, Paul Lind wrote:
> nit, typo in comment: first 'is' -> 'if'

Done.

https://codereview.chromium.org/25050002/diff/1/src/mips/lithium-codegen-mips...
src/mips/lithium-codegen-mips.cc:1462: // Correct the sign of the result is the
constant is negative.
On 2013/09/27 14:51:45, Paul Lind wrote:
> nit: first 'is' -> 'if'

Done.

[Paul Lind, 2013-09-27 16:23:59]

Committed as r16997.