JSDataView methods like JSDataView::getInt8 are labeled with JSC_HOST_CALL, which gives them the fastcall calling convention. This leads to runtime errors, because these methods are called from C++ code in the auto-generated JSDataView.cpp. This was observed when running fast/canvas/webgl/data-view-test.html on the upcoming GTK+ WebGL implementation.
Created attachment 77643 [details]
Committed r74760: <http://trac.webkit.org/changeset/74760>