Bug 116888

Summary: JSC Should use the C Stack for JIT code
Product: WebKit Reporter: Michael Saboff <msaboff>
Component: JavaScriptCoreAssignee: Michael Saboff <msaboff>
Status: RESOLVED FIXED    
Severity: Normal CC: fpizlo, ggaren
Priority: P2 Keywords: InRadar
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 126394, 116889, 117102, 117719, 118482, 118758, 121732, 121756, 122231, 122244, 123037, 123182, 123642, 123844, 123956, 123999, 124251, 124361, 124420, 124481, 124634, 124735, 124754, 124756, 124793, 125331, 126387, 126409, 126590, 126781    
Bug Blocks: 113621    

Description Michael Saboff 2013-05-28 14:35:40 PDT 
Currently the llint, and the baseline and DFG JITs use a separate call stack.  That stack also grows up, opposite to the C call stack.  To use LLVM, we need to migrate to use the C stack.  Since we OSR exit across JIT's and llint, all execution engines need to use the common C stack.
Comment 1 Filip Pizlo 2013-10-02 11:37:48 PDT 
<rdar://problem/15133588>
Comment 2 Geoffrey Garen 2014-01-27 15:38:10 PST 
This task is complete. The next step is to merge the code back to trunk: <rdar://problem/15904077>.