Reintroduce the InlineHint function attribute.
This time it's for real! I am going to hook this up in the frontends as well.
The inliner has some experimental heuristics for dealing with the inline hint.
When given a -respect-inlinehint option, functions marked with the inline
keyword are given a threshold just above the default for -O3.
We need some experiments to determine if that is the right thing to do.
llvm-svn: 95466
diff --git a/llvm/docs/LangRef.html b/llvm/docs/LangRef.html
index c028f6b..fed2f80 100644
--- a/llvm/docs/LangRef.html
+++ b/llvm/docs/LangRef.html
@@ -1083,6 +1083,11 @@
function into callers whenever possible, ignoring any active inlining size
threshold for this caller.</dd>
+ <dt><tt><b>inlinehint</b></tt></dt>
+ <dd>This attribute indicates that the source code contained a hint that 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.</dd>
+
<dt><tt><b>noinline</b></tt></dt>
<dd>This attribute indicates that the inliner should never inline this
function in any situation. This attribute may not be used together with