3 files changed, 58 insertions, 14 deletions
diff --git a/gcc/doc/cfg.texi b/gcc/doc/cfg.texi
index b8c6427..bbd6694 100644
--- a/gcc/doc/cfg.texi
+++ b/gcc/doc/cfg.texi
@@ -297,10 +297,12 @@ edge.  The opposite conversion is difficult, but should not happen
 anyway.  The edges can be eliminated via @code{purge_dead_edges} call.
 
 @findex REG_EH_REGION, EDGE_ABNORMAL_CALL
-In the RTL representation, the destination of an exception edge is
-specified by @code{REG_EH_REGION} note attached to the insn.
-In case of a trapping call the @code{EDGE_ABNORMAL_CALL} flag is set
-too.  In the @code{GIMPLE} representation, this extra flag is not set.
+In the RTL representation, a @code{REG_EH_REGION} note is attached to
+an instruction that can throw an exception.  The destination of the
+exception edge originating at such an instruction is specified by the
+value of the @code{REG_EH_REGION} note.  In case of a trapping call
+the @code{EDGE_ABNORMAL_CALL} flag is set too.  In the @code{GIMPLE}
+representation, this extra flag is not set.
 
 @findex may_trap_p, tree_could_trap_p
 In the RTL representation, the predicate @code{may_trap_p} may be used
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 5bc2785..0978c4c 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -12978,6 +12978,7 @@ C and/or C++ standards, while others remain specific to GNU C.
 * Binary constants::    Binary constants using the @samp{0b} prefix.
 * Dollar Signs::        Dollar sign is allowed in identifiers.
 * Character Escapes::   @samp{\e} stands for the character @key{ESC}.
+* Raw String Literals::	C++ raw string literals are supported in C.
 * Alternate Keywords::  @code{__const__}, @code{__asm__}, etc., for header files.
 * Function Names::      Printable strings which are the name of the current
                         function.
@@ -13999,6 +14000,25 @@ machines, typically because the target assembler does not allow them.
 You can use the sequence @samp{\e} in a string or character constant to
 stand for the ASCII character @key{ESC}.
 
+@node Raw String Literals
+@subsection Raw String Literals
+@cindex raw string literals
+@cindex string literals, raw
+
+The C++11 standard added syntax for raw string literals prefixed
+with @samp{R}.  This syntax allows you to use an arbitrary delimiter
+sequence instead of escaping special characters within the string.
+For example, these string constants are all equivalent:
+
+@smallexample
+const char *s1 = "\\";
+const char *s2 = R"(\)";
+const char *s3 = R"foo(\)foo";
+@end smallexample
+
+As an extension, GCC also accepts raw string literals in C with
+@option{-std=gnu99} or later.
+
 @node Alternate Keywords
 @subsection Alternate Keywords
 @cindex alternate keywords
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 0b6644b..88fb9bd 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -2199,6 +2199,7 @@ those that have already been displayed.  If @option{--help} is also
 specified anywhere on the command line then this takes precedence
 over any @option{--help=} option.
 
+@opindex Q
 If the @option{-Q} option appears on the command line before the
 @option{--help=} option, then the descriptive text displayed by
 @option{--help=} is changed.  Instead of describing the displayed
@@ -14648,12 +14649,14 @@ Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
 @item -fstrict-aliasing
 Allow the compiler to assume the strictest aliasing rules applicable to
 the language being compiled.  For C (and C++), this activates
-optimizations based on the type of expressions.  In particular, an
-object of one type is assumed never to reside at the same address as an
-object of a different type, unless the types are almost the same.  For
-example, an @code{unsigned int} can alias an @code{int}, but not a
-@code{void*} or a @code{double}.  A character type may alias any other
-type.
+optimizations based on the type of expressions.  In particular, accessing
+an object of one type via an expression of a different type is not allowed,
+unless the types are @dfn{compatible types}, differ only in signedness or
+qualifiers, or the expression has a character type.  Accessing scalar
+objects via a corresponding vector type is also allowed.
+
+For example, an @code{unsigned int} can alias an @code{int}, but not a
+@code{void*} or a @code{double}.  A character type may alias any other type.
 
 @anchor{Type-punning}Pay special attention to code like this:
 @smallexample
@@ -16960,6 +16963,19 @@ Size of max partition for WHOPR (in estimated instructions).
 to provide an upper bound for individual size of partition.
 Meant to be used only with balanced partitioning.
 
+@item lto-partition-locality-frequency-cutoff
+The denominator n of fraction 1/n of the execution frequency of callee to be
+cloned for a particular caller. Special value of 0 dictates to always clone
+without a cut-off.
+
+@item lto-partition-locality-size-cutoff
+Size cut-off for callee including inlined calls to be cloned for a particular
+caller.
+
+@item lto-max-locality-partition
+Maximal size of a locality partition for LTO (in estimated instructions).
+Value of 0 results in default value being used.
+
 @item lto-max-streaming-parallelism
 Maximal number of parallel processes used for LTO streaming.
 
@@ -21311,8 +21327,13 @@ Toggle @option{-fvar-tracking-assignments}, in the same way that
 
 @opindex Q
 @item -Q
-Makes the compiler print out each function name as it is compiled, and
-print some statistics about each pass when it finishes.
+When used on the command line prior to @option{--help=}, @option{-Q}
+acts as a modifier to the help output.  @xref{Overall Options},
+for details about @option{--help=}.
+
+Otherwise, this option makes the compiler print out each function name
+as it is compiled, and print some statistics about each pass when it
+finishes.
 
 @opindex ftime-report
 @item -ftime-report
@@ -31496,8 +31517,9 @@ Permissible values for this option are: @samp{sifive-e20}, @samp{sifive-e21},
 @samp{sifive-e24}, @samp{sifive-e31}, @samp{sifive-e34}, @samp{sifive-e76},
 @samp{sifive-s21}, @samp{sifive-s51}, @samp{sifive-s54}, @samp{sifive-s76},
 @samp{sifive-u54}, @samp{sifive-u74}, @samp{sifive-x280}, @samp{sifive-xp450},
-@samp{sifive-x670}, @samp{thead-c906}, @samp{tt-ascalon-d8},
-@samp{xiangshan-nanhu}.
+@samp{sifive-x670}, @samp{thead-c906}, @samp{tt-ascalon-d8}, @samp{xiangshan-nanhu},
+@samp{xt-c908}, @samp{xt-c908v}, @samp{xt-c910}, @samp{xt-c910v2},
+@samp{xt-c920}, @samp{xt-c920v2}.
 
 Note that @option{-mcpu} does not override @option{-march} or @option{-mtune}.