diff options
| author | Chris Lattner <sabre@nondot.org> | 2002-08-13 20:52:09 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2002-08-13 20:52:09 +0000 |
| commit | f8856bc4034b43ef781ea7a04eeb78a417d3accf (patch) | |
| tree | ce1c3f7531fcf0c8c2ed550f20877b0fe943034a /docs | |
| parent | 65629d5a169753f007c5eab6586b98acd90b2dc7 (diff) | |
| download | external_llvm-f8856bc4034b43ef781ea7a04eeb78a417d3accf.zip external_llvm-f8856bc4034b43ef781ea7a04eeb78a417d3accf.tar.gz external_llvm-f8856bc4034b43ef781ea7a04eeb78a417d3accf.tar.bz2 | |
Add a note that specifies that the whether or not sign extension is done by
a cast is determined by the source operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3304 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/LangRef.html | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/docs/LangRef.html b/docs/LangRef.html index a23d68a..e6e9c30 100644 --- a/docs/LangRef.html +++ b/docs/LangRef.html @@ -1603,6 +1603,11 @@ When casting to bool, any value that would be considered true in the context of a C '<tt>if</tt>' condition is converted to the boolean '<tt>true</tt>' values, all else are '<tt>false</tt>'.<p> +When extending an integral value from a type of one signness to another (for +example '<tt>sbyte</tt>' to '<tt>ulong</tt>'), the value is sign-extended if the +<b>source</b> value is signed, and zero-extended if the source value is +unsigned.<p> + <h5>Example:</h5> <pre> %X = cast int 257 to ubyte <i>; yields ubyte:1</i> @@ -1736,7 +1741,7 @@ more... <address><a href="mailto:sabre@nondot.org">Chris Lattner</a></address> <!-- Created: Tue Jan 23 15:19:28 CST 2001 --> <!-- hhmts start --> -Last modified: Tue Jun 25 15:19:34 CDT 2002 +Last modified: Tue Aug 13 15:50:47 CDT 2002 <!-- hhmts end --> </font> </body></html> |