OpenJDK / jdk / jdk
changeset 3176:2a5f513df340
6841800: Incorrect boundary values behavior for option -XX:MaxLabelRootDepth=0-6 leads to jvm crash
Summary: MaxLabelRootDepth value less then 10 is invalid.
Reviewed-by: never
| author | kvn |
|---|---|
| date | Wed, 24 Jun 2009 12:00:51 -0700 |
| parents | 333736275947 |
| children | f467776fc753 |
| files | hotspot/src/share/vm/opto/matcher.cpp |
| diffstat | 1 files changed, 4 insertions(+), 0 deletions(-) [+] |
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--- a/hotspot/src/share/vm/opto/matcher.cpp Wed Jun 24 02:09:45 2009 -0700 +++ b/hotspot/src/share/vm/opto/matcher.cpp Wed Jun 24 12:00:51 2009 -0700 @@ -141,6 +141,10 @@ //---------------------------match--------------------------------------------- void Matcher::match( ) { + if( MaxLabelRootDepth < 100 ) { // Too small? + assert(false, "invalid MaxLabelRootDepth, increase it to 100 minimum"); + MaxLabelRootDepth = 100; + } // One-time initialization of some register masks. init_spill_mask( C->root()->in(1) ); _return_addr_mask = return_addr();