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-rw-r--r--gcc/doc/sourcebuild.texi20
1 files changed, 18 insertions, 2 deletions
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index a27aea2..c4353c7 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -1500,8 +1500,14 @@ ARM target supports generating NEON instructions.
Test system supports executing NEON instructions.
@item arm_neon_ok
-ARM Target supports @code{-mfpu=neon -mfloat-abi=softfp}.
-Some multilibs may be incompatible with these options.
+@anchor{arm_neon_ok}
+ARM Target supports @code{-mfpu=neon -mfloat-abi=softfp} or compatible
+options. Some multilibs may be incompatible with these options.
+
+@item arm_neon_fp16_ok
+@anchor{arm_neon_fp16_ok}
+ARM Target supports @code{-mfpu=neon-fp16 -mfloat-abi=softfp} or compatible
+options. Some multilibs may be incompatible with these options.
@item arm_thumb1_ok
ARM target generates Thumb-1 code for @code{-mthumb}.
@@ -1875,6 +1881,16 @@ compliance mode.
@item mips16_attribute
@code{mips16} function attributes.
Only MIPS targets support this feature, and only then in certain modes.
+
+@item arm_neon
+NEON support. Only ARM targets support this feature, and only then
+in certain modes; see the @ref{arm_neon_ok,,arm_neon_ok effective target
+keyword}.
+
+@item arm_neon_fp16
+NEON and half-precision floating point support. Only ARM targets
+support this feature, and only then in certain modes; see
+the @ref{arm_neon_ok,,arm_neon_fp16_ok effective target keyword}.
@end table
@node Require Support