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authorMatthew Wahab <matthew.wahab@arm.com>2015-12-10 13:58:21 +0000
committerMatthew Wahab <matthew.wahab@arm.com>2015-12-10 14:10:06 +0000
commitaf117b3cf1877da805d081b93f606f3dd8153502 (patch)
tree5dcf933712e8fb1426f84556a9b0dcff072f4900 /gas/doc
parent0f59c28f617516f3b8d30fd8e38a374a4060c191 (diff)
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[AArch64] Fix ARMv8.1 and ARMv8.2 feature settings.
ARMv8.1 includes CRC as a required extension but this isn't reflected in the features enabled by -march=armv8.1-a. The FP16 feature modifier also clashes with AARCH64_FEATURE_V8_1 and the list of features for ARMv8.2 is missing ARMv8.1 features. This patch enables +crc for -march values of armv8.1-a and later. It also fixes the values for AARCH64_FEATURE_F16 and makes AARCH64_ARCH_V8_2 and superset of AARCH64_ARCH_V8_2. gas/ 2015-12-10 Matthew Wahab <matthew.wahab@arm.com> * doc/c-aarch64.texi (AArch64 Extensions): Update entry for crc. include/opcode 2015-12-10 Matthew Wahab <matthew.wahab@arm.com> * aarch64.h (AARCH64_FEATURE_F16): Fix clash with AARCH64_FEATURE_V8_1. (AARCH64_ARCH_V8_1): Add AARCH64_FEATURE_CRC. (AARCH64_ARCH_V8_2): Add AARCH64_FEATURE_CRC and AARCH64_FEATURE_V8_1. Change-Id: I8af5369f6df2430b28f6cec92870d2a4d14a7431
Diffstat (limited to 'gas/doc')
-rw-r--r--gas/doc/c-aarch64.texi2
1 files changed, 1 insertions, 1 deletions
diff --git a/gas/doc/c-aarch64.texi b/gas/doc/c-aarch64.texi
index 2717af2..363366a 100644
--- a/gas/doc/c-aarch64.texi
+++ b/gas/doc/c-aarch64.texi
@@ -128,7 +128,7 @@ automatically cause those extensions to be disabled.
@multitable @columnfractions .12 .17 .17 .54
@headitem Extension @tab Minimum Architecture @tab Enabled by default
@tab Description
-@item @code{crc} @tab ARMv8-A @tab No
+@item @code{crc} @tab ARMv8-A @tab ARMv8.1-A or later
@tab Enable CRC instructions.
@item @code{crypto} @tab ARMv8-A @tab No
@tab Enable cryptographic extensions. This implies @code{fp} and @code{simd}.