diff options
| author | Marc Glisse <marc.glisse@inria.fr> | 2012-09-27 12:06:23 +0200 |
|---|---|---|
| committer | Marc Glisse <glisse@gcc.gnu.org> | 2012-09-27 10:06:23 +0000 |
| commit | e481cda684ff01bab0d4c1d3813dbfc92557182e (patch) | |
| tree | be6091b44aaa9d3b9e2680b33a4bc5f883de4e69 | |
| parent | e649d346e789ca15524872c11a40288113c27d50 (diff) | |
| download | gcc-e481cda684ff01bab0d4c1d3813dbfc92557182e.zip gcc-e481cda684ff01bab0d4c1d3813dbfc92557182e.tar.gz gcc-e481cda684ff01bab0d4c1d3813dbfc92557182e.tar.bz2 | |
re PR middle-end/53024 (Support vector_size that is not a power of 2)
2012-09-27 Marc Glisse <marc.glisse@inria.fr>
PR c/53024
PR c++/54427
* gcc/doc/extend.texi (Vector Extensions): C++ improvements.
Power of 2 size requirement.
From-SVN: r191800
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/doc/extend.texi | 7 |
2 files changed, 11 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cb66af6..5850528 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2012-09-27 Marc Glisse <marc.glisse@inria.fr> + + PR c/53024 + PR c++/54427 + * doc/extend.texi (Vector Extensions): C++ improvements. + Power of 2 size requirement. + 2012-09-27 Richard Guenther <rguenther@suse.de> PR lto/54709 diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 8b4a867..9b216df 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -6820,7 +6820,8 @@ corresponding mode of @code{foo} will be @acronym{V4SI}. The @code{vector_size} attribute is only applicable to integral and float scalars, although arrays, pointers, and function return values -are allowed in conjunction with this construct. +are allowed in conjunction with this construct. Only power of two +sizes are currently allowed. All the basic integer types can be used as base types, both as signed and as unsigned: @code{char}, @code{short}, @code{int}, @code{long}, @@ -6857,7 +6858,7 @@ minus or complement operators on a vector type is a vector whose elements are the negative or complemented values of the corresponding elements in the operand. -In C it is possible to use shifting operators @code{<<}, @code{>>} on +It is possible to use shifting operators @code{<<}, @code{>>} on integer-type vectors. The operation is defined as following: @code{@{a0, a1, @dots{}, an@} >> @{b0, b1, @dots{}, bn@} == @{a0 >> b0, a1 >> b1, @dots{}, an >> bn@}}@. Vector operands must have the same number of @@ -6888,7 +6889,7 @@ invoke undefined behavior at runtime. Warnings for out of bound accesses for vector subscription can be enabled with @option{-Warray-bounds}. -In GNU C vector comparison is supported within standard comparison +Vector comparison is supported with standard comparison operators: @code{==, !=, <, <=, >, >=}. Comparison operands can be vector expressions of integer-type or real-type. Comparison between integer-type vectors and real-type vectors are not supported. The |