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-rw-r--r--gcc/doc/extend.texi15
-rw-r--r--gcc/doc/install.texi17
-rw-r--r--gcc/doc/invoke.texi13
3 files changed, 29 insertions, 16 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 882c082..8aaedae 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -7311,11 +7311,16 @@ the attribute.
When the field that represents the number of the elements is assigned a
negative integer value, the compiler treats the value as zero.
-The @code{counted_by} attribute is not allowed for a pointer to @code{void},
-a pointer to function, or a pointer to a structure or union that includes
-a flexible array member. However, it is allowed for a pointer to
-non-void incomplete structure or union types, as long as the type could
-be completed before the first reference to the pointer.
+The @code{counted_by} attribute is not allowed for a pointer to function,
+or a pointer to a structure or union that includes a flexible array member.
+However, it is allowed for a pointer to non-void incomplete structure
+or union types, as long as the type could be completed before the first
+reference to the pointer.
+
+The attribute is allowed for a pointer to @code{void}. However,
+warnings will be issued for such cases when @option{-Wpointer-arith} is
+specified. When this attribute is applied on a pointer to @code{void},
+the size of each element of this pointer array is treated as 1.
An explicit @code{counted_by} annotation defines a relationship between
two objects, @code{p->array} and @code{p->count}, and there are the
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index 576b7ee..50cefa1 100644
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -304,17 +304,14 @@ mdoc. GNU groff is required to convert them to PDF format. Conversion
to HTML is done with mandoc, available at
@uref{https://mandoc.bsd.lv}.
+The COBOL runtime library. libgcobol, requires libxml2 2.9 or later.
+It implements support for @code{XML PARSE}.
+
Because ISO COBOL defines strict requirements for numerical precision,
-gcobol requires hardware with 128-bit computation instructions. This
-requirement applies to both host and target. For integer and
-fixed-point computation, gcobol uses
-@deftp {Data type} __int128
-@end deftp
-meaning @code{16 == sizeof(long long int)}.
-For floating point, gcobol uses
-@deftp {Data type} _Float128
-@end deftp
-(On some architectures, GCC supports 128-bit floating point in software.)
+gcobol computes with 128-bit operands. This requirement applies to
+both host and target. For integers, gcobol requires the platform to
+support the GCC @code{__int128} type. For floating point it uses
+@code{_Float128} or similar.
gcobol has so far been tested on two architectures only: x86_64 and
aarch64 with little-endian encoding.
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index b40fc89..32b9c48 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -1097,7 +1097,7 @@ Objective-C and Objective-C++ Dialects}.
-mfpu=@var{fpu-type} -msimd=@var{simd-type}
-msoft-float -msingle-float -mdouble-float -mlsx -mno-lsx -mlasx -mno-lasx
-mbranch-cost=@var{n} -maddr-reg-reg-cost=@var{n} -mcheck-zero-division
--mno-check-zero-division
+-mno-check-zero-division -mbreak-code=@var{code}
-mcond-move-int -mno-cond-move-int
-mcond-move-float -mno-cond-move-float
-memcpy -mno-memcpy -mstrict-align -mno-strict-align -G @var{num}
@@ -28457,6 +28457,17 @@ Trap (do not trap) on integer division by zero. The default is
@option{-mcheck-zero-division} for @option{-O0} or @option{-Og}, and
@option{-mno-check-zero-division} for other optimization levels.
+@opindex mbreak-code
+@item -mbreak-code=@var{code}
+Emit a @code{break} @var{code} instruction for irrecoverable traps
+from @code{__builtin_trap} or inserted by the compiler (for example
+an erroneous path isolated with
+@option{-fisolate-erroneous-paths-dereference}), or an
+@code{amswap.w $r0, $r1, $r0} instruction which will cause the hardware
+to trigger an Instruction Not-defined Exception if @var{code} is negative
+or greater than 32767. The default is -1, meaning to use the
+@code{amswap.w} instruction.
+
@opindex mcond-move-int
@item -mcond-move-int
@itemx -mno-cond-move-int