search for: win_chkstk

...chkstk must adjust %rsp. +; ___chkstk_ms does not adjust %rsp. ; M64: movq %rsp, %rbp ; M64: $4096, %rax -; M64: callq ___chkstk -; M64-NOT: %rsp +; M64: callq ___chkstk_ms +; M64: subq %rax, %rsp ; __chkstk does not adjust %rsp. ; W64: movq %rsp, %rbp diff --git a/test/CodeGen/X86/win_chkstk.ll b/test/CodeGen/X86/win_chkstk.ll index 3f522ea..0c02c1a 100644 --- a/test/CodeGen/X86/win_chkstk.ll +++ b/test/CodeGen/X86/win_chkstk.ll @@ -17,7 +17,7 @@ entry: ; WIN_X32: calll __chkstk ; WIN_X64: callq __chkstk ; MINGW_X32: calll __alloca -; MINGW_X64: callq ___chkstk +; MINGW_X64:...

Mingw switched abis with the release of gcc 4.7 (http://gcc.gnu.org/gcc-4.7/changes.html). The main change is that now mingw (like msvc) given thiscall calling convention to methods by default. I think the last bug blocking us to support the new abi has just been fixed. The question now is how to switch. The attached patches simply switch llvm and clang to the new ABI. This is similar to what