In the inline assembly stub for MSVC X86_64, there is an error in the instruction to save RBP: push rbp => mov rbp, rax ; Save previous frame pointer mov rbp, rsp MS inline assembly is Intel format (i.e. <opcode> <dest>, <src>, ...) The rbp and tax need to be swapped.
Created attachment 216944 [details] Patch
Committed r159290: <http://trac.webkit.org/changeset/159290>