Hi all,
Since support for -mcpu=cortex-a55 and -mcpu=cortex-a75
was added we added support for the +dotprod extension
which these CPUs support.
We already specify as such in the arm-cpus.in entries for
these processors. However the table in driver-arm.c was
not adding +dotproct to the -march string that it generates.
This patch fixes that oversight.
In the future I'd like to get the arm_cpu_table in driver-arm.c
be auto-generated somehow from the arm-cpus.in data so
that we don't have to keep track of discrepancies explicitly...
Bootstrapped and tested on arm-none-linux-gnueabihf.
Committed to trunk.
Thanks,
Kyrill
2017-12-21 Kyrylo Tkachov <kyrylo.tkac...@arm.com>
* config/arm/driver-arm.c (arm_cpu_table): Specify dotprod
support for Cortex-A55 and Cortex-A75.
commit ee648abe3b1a2b8536ce5470973ae673aaff37e6
Author: Kyrylo Tkachov <kyrylo.tkac...@arm.com>
Date: Thu Dec 21 11:40:05 2017 +0000
[arm] Specify +dotprod support for Cortex-A55 and Cortex-A75 in native system detection
diff --git a/gcc/config/arm/driver-arm.c b/gcc/config/arm/driver-arm.c
index 280f420..328cec9 100644
--- a/gcc/config/arm/driver-arm.c
+++ b/gcc/config/arm/driver-arm.c
@@ -54,8 +54,8 @@ static struct vendor_cpu arm_cpu_table[] = {
{"0xd07", "armv8-a+crc", "cortex-a57"},
{"0xd08", "armv8-a+crc", "cortex-a72"},
{"0xd09", "armv8-a+crc", "cortex-a73"},
- {"0xd05", "armv8.2-a+fp16", "cortex-a55"},
- {"0xd0a", "armv8.2-a+fp16", "cortex-a75"},
+ {"0xd05", "armv8.2-a+fp16+dotprod", "cortex-a55"},
+ {"0xd0a", "armv8.2-a+fp16+dotprod", "cortex-a75"},
{"0xc14", "armv7-r", "cortex-r4"},
{"0xc15", "armv7-r", "cortex-r5"},
{"0xc17", "armv7-r", "cortex-r7"},
