[llvm] r188091 - Add description of function attribute 'minsize' in LangRef.rst.
Andrea Di Biagio
Andrea_DiBiagio at sn.scee.net
Fri Aug 9 11:42:19 PDT 2013
Author: adibiagio
Date: Fri Aug 9 13:42:18 2013
New Revision: 188091
URL: http://llvm.org/viewvc/llvm-project?rev=188091&view=rev
Log:
Add description of function attribute 'minsize' in LangRef.rst.
Modified:
llvm/trunk/docs/LangRef.rst
Modified: llvm/trunk/docs/LangRef.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/LangRef.rst?rev=188091&r1=188090&r2=188091&view=diff
==============================================================================
--- llvm/trunk/docs/LangRef.rst (original)
+++ llvm/trunk/docs/LangRef.rst Fri Aug 9 13:42:18 2013
@@ -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,
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