[PATCH 4/4] aarch64: Add -mcpu option for Cortex-R82

[PATCH 4/4] aarch64: Add -mcpu option for Cortex-R82

[Alex Coplan]

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This adds support for the Arm Cortex-R82 CPU in AArch64 GAS. For more
information about this processor, see [0].

Testing:
 * Manually verified new -mcpu option works as expected.
 * Regression tested an x64 -> aarch64-none-elf cross.

[0] : https://developer.arm.com/ip-products/processors/cortex-r/cortex-r82

---

gas/ChangeLog:

2020-09-04  Alex Coplan  <alex.coplan@arm.com>

	* config/tc-aarch64.c (aarch64_cpus): Add Cortex-R82.
	* doc/c-aarch64.texi: Document -mcpu=cortex-r82.
---
 gas/config/tc-aarch64.c | 1 +
 gas/doc/c-aarch64.texi  | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

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diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c
index b2a1683efd2..391746e3e07 100644
--- a/gas/config/tc-aarch64.c
+++ b/gas/config/tc-aarch64.c
@@ -8976,6 +8976,7 @@ static const struct aarch64_cpu_option_table aarch64_cpus[] = {
   {"xgene1", AARCH64_ARCH_V8, "APM X-Gene 1"},
   {"xgene2", AARCH64_FEATURE (AARCH64_ARCH_V8,
 			      AARCH64_FEATURE_CRC), "APM X-Gene 2"},
+  {"cortex-r82", AARCH64_ARCH_V8_R, "Cortex-R82"},
   {"generic", AARCH64_ARCH_V8, NULL},
 
   {NULL, AARCH64_ARCH_NONE, NULL}
diff --git a/gas/doc/c-aarch64.texi b/gas/doc/c-aarch64.texi
index 89725a7e2f8..d8f2e19326f 100644
--- a/gas/doc/c-aarch64.texi
+++ b/gas/doc/c-aarch64.texi
@@ -78,8 +78,9 @@ on the target processor.  The following processor names are recognized:
 @code{thunderx},
 @code{vulcan},
 @code{xgene1}
+@code{xgene2},
 and
-@code{xgene2}.
+@code{cortex-r82}.
 The special name @code{all} may be used to allow the assembler to accept
 instructions valid for any supported processor, including all optional
 extensions.