Manage objfiles with shared_ptr

[deliverable/binutils-gdb.git] / gas / doc / c-mips.texi

diff --git a/gas/doc/c-mips.texi b/gas/doc/c-mips.texi
index d10f2d6439f864a64dd21a4931d192ec4ff877d4..1df28c6d55b246863b81da544b883bffdcf5cbfd 100644 (file)
--- a/gas/doc/c-mips.texi
+++ b/gas/doc/c-mips.texi
@@ -1,4 +1,4 @@
-@c Copyright (C) 1991-2018 Free Software Foundation, Inc.
+@c Copyright (C) 1991-2019 Free Software Foundation, Inc.
 @c This is part of the GAS manual.
 @c For copying conditions, see the file as.texinfo.
 @ifset GENERIC
@@ -253,6 +253,27 @@ Application Specific Extension.  This tells the assembler to accept MMI
 instructions.
 @samp{-mno-loongson-mmi} turns off this option.
 
+@item -mloongson-cam
+@itemx -mno-loongson-cam
+Generate code for the Loongson Content Address Memory (CAM)
+Application Specific Extension.  This tells the assembler to accept CAM
+instructions.
+@samp{-mno-loongson-cam} turns off this option.
+
+@item -mloongson-ext
+@itemx -mno-loongson-ext
+Generate code for the Loongson EXTensions (EXT) instructions
+Application Specific Extension.  This tells the assembler to accept EXT
+instructions.
+@samp{-mno-loongson-ext} turns off this option.
+
+@item -mloongson-ext2
+@itemx -mno-loongson-ext2
+Generate code for the Loongson EXTensions R2 (EXT2) instructions
+Application Specific Extension.  This tells the assembler to accept EXT2
+instructions.
+@samp{-mno-loongson-ext2} turns off this option.
+
 @item -minsn32
 @itemx -mno-insn32
 Only use 32-bit instruction encodings when generating code for the
@@ -287,6 +308,13 @@ Replace nops by @code{or at,at,zero} to work around the Loongson2F
 deadlock.  The issue has been solved in later Loongson2F batches, but
 this fix has no side effect to them.
 
+@item -mfix-loongson3-llsc
+@itemx -mno-fix-loongson3-llsc
+Insert @samp{sync} before @samp{ll} and @samp{lld} to work around
+Loongson3 LLSC errata.  Without it, under extrame cases, the CPU might
+deadlock. The default can be controlled by the
+@option{--enable-mips-fix-loongson3-llsc=[yes|no]} configure option.
+
 @item -mfix-vr4120
 @itemx -mno-fix-vr4120
 Insert nops to work around certain VR4120 errata.  This option is
@@ -306,6 +334,14 @@ Insert nops to work around the 24K @samp{eret}/@samp{deret} errata.
 Replace @code{pref} hints 0 - 4 and 6 - 24 with hint 28 to work around
 certain CN63XXP1 errata.
 
+@item -mfix-r5900
+@itemx -mno-fix-r5900
+Do not attempt to schedule the preceding instruction into the delay slot
+of a branch instruction placed at the end of a short loop of six
+instructions or fewer and always schedule a @code{nop} instruction there
+instead.  The short loop bug under certain conditions causes loops to
+execute only once or twice, due to a hardware bug in the R5900 chip.
+
 @item -m4010
 @itemx -no-m4010
 Generate code for the LSI R4010 chip.  This tells the assembler to
@@ -413,10 +449,13 @@ p5600,
 sb1,
 sb1a,
 i6400,
+i6500,
 p6600,
 loongson2e,
 loongson2f,
-loongson3a,
+gs464,
+gs464e,
+gs264e,
 octeon,
 octeon+,
 octeon2,
@@ -1152,6 +1191,31 @@ instructions from the MMI Extension from that point on in the assembly.
 The @code{.set noloongson-mmi} directive prevents MMI instructions from
 being accepted.
 
+@cindex Loongson Content Address Memory (CAM) generation override
+@kindex @code{.set loongson-cam}
+@kindex @code{.set noloongson-cam}
+The directive @code{.set loongson-cam} makes the assembler accept
+instructions from the Loongson CAM from that point on in the assembly.
+The @code{.set noloongson-cam} directive prevents Loongson CAM instructions
+from being accepted.
+
+@cindex Loongson EXTensions (EXT) instructions generation override
+@kindex @code{.set loongson-ext}
+@kindex @code{.set noloongson-ext}
+The directive @code{.set loongson-ext} makes the assembler accept
+instructions from the Loongson EXT from that point on in the assembly.
+The @code{.set noloongson-ext} directive prevents Loongson EXT instructions
+from being accepted.
+
+@cindex Loongson EXTensions R2 (EXT2) instructions generation override
+@kindex @code{.set loongson-ext2}
+@kindex @code{.set noloongson-ext2}
+The directive @code{.set loongson-ext2} makes the assembler accept
+instructions from the Loongson EXT2 from that point on in the assembly.
+This directive implies @code{.set loognson-ext}.
+The @code{.set noloongson-ext2} directive prevents Loongson EXT2 instructions
+from being accepted.
+
 Traditional MIPS assemblers do not support these directives.
 
 @node MIPS Floating-Point