3 Commits

Author	SHA1	Message	Date
Sam Clegg	46016f24b4	[WebAssembly] Use __stack_pointer global when writing wasm binary ... This ensures that symbolic relocations are generated for stack pointer manipulations. These relocations are of type R_WEBASSEMBLY_GLOBAL_INDEX_LEB. This change also adds support for reading relocations of this type in WasmObjectFile.cpp. Since its a globally imported symbol this does mean that the get_global/set_global instruction won't be valid until the objects are linked that global used in no longer an imported global. Differential Revision: https://reviews.llvm.org/D34172 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305616 91177308-0d34-0410-b5e6-96231b3b80d8	2017-06-16 23:59:10 +00:00
Dan Gohman	8f5a7d69cc	[WebAssembly] Add support for using a wasm global for the stack pointer. ... This replaces the __stack_pointer variable which was allocated in linear memory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296201 91177308-0d34-0410-b5e6-96231b3b80d8	2017-02-24 23:46:05 +00:00
Derek Schuff	9ebd8435df	[WebAssembly] Emit a BasePointer when we have overly-aligned stack objects ... Because we shift the stack pointer by an unknown amount, we need an additional pointer. In the case where we have variable-size objects as well, we can't reuse the frame pointer, thus three pointers. Patch by Jacob Gravelle Differential Revision: https://reviews.llvm.org/D26263 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286160 91177308-0d34-0410-b5e6-96231b3b80d8	2016-11-07 22:00:48 +00:00