Ping: [PATCH] RISC-V: Add -malign-data= option.

[Ilia Diachkov <ilia dot diachkov at optimitech dot com>]

Hello,

There are two weeks gone since the end of the patch discussion but no 
one has neither objected nor approved it. Please take a look to it and 
approve. Also please commit it since I have no write access.

The updated version of the patch was attached to my message 
https://gcc.gnu.org/ml/gcc-patches/2019-06/msg01689.html

The updated patch description:

This patch adds new machine specific option -malign-data={xlen,natural} 
to RISC-V port. The option switches alignment of global variables and 
constants of array/record/union types. The default value 
(-malign-data=xlen) keeps existing way of alignment computation. Another 
option value (-malign-data=natural) makes data natural alignment. It 
avoids extra spaces between data to reduce code size. The measured code 
size reduction is about 0.4% at -Os on EEMBC automotive 1.1 tests and 
SPEC2006 C/C++ benchmarks. The patch was tested in riscv-gnu-toolchain 
by dejagnu. Also I have tested the new option with -mstrict-align and 
found no influence on each other.

Best regards,
Ilia.