[x86] Fix initialization of stackalloc-ed memory in no pushes mode.

diff --git a/mono/mini/mini-x86.c b/mono/mini/mini-x86.c
index 8a95cabcb5cc8a816ee842489691494cb528771f..d048ce6159d18c956ee2b9094a9401610494a66d 100644 (file)
--- a/mono/mini/mini-x86.c
+++ b/mono/mini/mini-x86.c
@@ -2350,6 +2350,8 @@ mono_emit_stack_alloc (MonoCompile *cfg, guchar *code, MonoInst* tree)
                x86_alu_reg_reg (code, X86_XOR, X86_EAX, X86_EAX);
                                
                x86_lea_membase (code, X86_EDI, X86_ESP, offset);
+               if (cfg->param_area && cfg->arch.no_pushes)
+                       x86_alu_reg_imm (code, X86_ADD, X86_EDI, cfg->param_area);
                x86_cld (code);
                x86_prefix (code, X86_REP_PREFIX);
                x86_stosl (code);