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Add description of function attribute 'minsize' in LangRef.rst. 

llvm-svn: 188091
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Andrea Di Biagio 2013-08-09 18:42:18 +00:00
parent bae7f8ee2d
commit 9b5d23bccb
1 changed files with 7 additions and 1 deletions
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llvm/docs/LangRef.rst
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@ -833,6 +833,11 @@ example:
inlining this function is desirable (such as the "inline" keyword in
C/C++). It is just a hint; it imposes no requirements on the
inliner.
``minsize``
This attribute suggests that optimization passes and code generator
passes make choices that keep the code size of this function as small
as possible and perform optimizations that may sacrifice runtime
performance in order to minimize the size of the generated code.
``naked``
This attribute disables prologue / epilogue emission for the
function. This can have very system-specific consequences.
@ -877,7 +882,8 @@ example:
``optsize``
This attribute suggests that optimization passes and code generator
passes make choices that keep the code size of this function low,
and otherwise do optimizations specifically to reduce code size.
and otherwise do optimizations specifically to reduce code size as
long as they do not significantly impact runtime performance.
``readnone``
On a function, this attribute indicates that the function computes its
result (or decides to unwind an exception) based strictly on its arguments,