Mercurial > hg > graal-compiler
annotate visualizer/Editor/build.xml @ 11825:463f51256c86
AMD64HotSpot: emit jump to IC miss handler directly instead of emitting it inside verfied_entry
for empty methods we emitted something like this if a inline cache is needed:
prefix:
00: < IC check >
...
0b: jne <ic_miss_call>
11: nop
...
verified_entry:
20: ret
ic_miss_call:
21: jmp <entry of runtime function>
when a method is deoptimized, HotSpot patches the verified_entry (0x20) with a
jump to a stub that handles call-sites that has been made non-entrant. since this jump
is 5 bytes long, it will overwrite ic_miss_call and blow up every caller that
calls this method via the unverified entry (prefix).
the fix is to emit the jump to the runtime function inside the unverfied entry:
prefix:
00: < IC check >
...
0b: je <verified_entry>
11: jeq <entry of runtime function>
16: nop
...
verified_entry:
20: ret
author | Bernhard Urban <bernhard.urban@jku.at> |
---|---|
date | Mon, 30 Sep 2013 09:32:18 +0200 |
parents | 35cca763f498 |
children |
rev | line source |
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4516
35cca763f498
Added netbeans project files, updates .hgignore
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
1 <?xml version="1.0" encoding="UTF-8"?> |
35cca763f498
Added netbeans project files, updates .hgignore
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
2 <!-- You may freely edit this file. See harness/README in the NetBeans platform --> |
35cca763f498
Added netbeans project files, updates .hgignore
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
3 <!-- for some information on what you could do (e.g. targets to override). --> |
35cca763f498
Added netbeans project files, updates .hgignore
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
4 <!-- If you delete this file and reopen the project it will be recreated. --> |
35cca763f498
Added netbeans project files, updates .hgignore
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
5 <project name="com.oracle.graal.visualizer.editor" default="netbeans" basedir="."> |
35cca763f498
Added netbeans project files, updates .hgignore
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
6 <description>Builds, tests, and runs the project com.oracle.graal.visualizer.editor.</description> |
35cca763f498
Added netbeans project files, updates .hgignore
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
7 <import file="nbproject/build-impl.xml"/> |
35cca763f498
Added netbeans project files, updates .hgignore
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
8 </project> |