diff options
Diffstat (limited to 'src/codegen.cpp')
| -rw-r--r-- | src/codegen.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/codegen.cpp b/src/codegen.cpp index f0826e3c49..18d19e39f0 100644 --- a/src/codegen.cpp +++ b/src/codegen.cpp @@ -290,6 +290,15 @@ static void addLLVMAttrStr(LLVMValueRef val, LLVMAttributeIndex attr_index, LLVMAddAttributeAtIndex(val, attr_index, llvm_attr); } +static void addLLVMAttrInt(LLVMValueRef val, LLVMAttributeIndex attr_index, + const char *attr_name, uint64_t attr_val) +{ + unsigned kind_id = LLVMGetEnumAttributeKindForName(attr_name, strlen(attr_name)); + assert(kind_id != 0); + LLVMAttributeRef llvm_attr = LLVMCreateEnumAttribute(LLVMGetGlobalContext(), kind_id, attr_val); + LLVMAddAttributeAtIndex(val, attr_index, llvm_attr); +} + static void addLLVMFnAttr(LLVMValueRef fn_val, const char *attr_name) { return addLLVMAttr(fn_val, -1, attr_name); } @@ -298,6 +307,10 @@ static void addLLVMFnAttrStr(LLVMValueRef fn_val, const char *attr_name, const c return addLLVMAttrStr(fn_val, -1, attr_name, attr_val); } +static void addLLVMFnAttrInt(LLVMValueRef fn_val, const char *attr_name, uint64_t attr_val) { + return addLLVMAttrInt(fn_val, -1, attr_name, attr_val); +} + static void addLLVMArgAttr(LLVMValueRef arg_val, unsigned param_index, const char *attr_name) { return addLLVMAttr(arg_val, param_index + 1, attr_name); } @@ -439,6 +452,12 @@ static LLVMValueRef fn_llvm_value(CodeGen *g, FnTableEntry *fn_table_entry) { } } + if (g->zig_target.os == ZigLLVM_Win32 && g->zig_target.arch.arch == ZigLLVM_x86_64 && + fn_type->data.fn.fn_type_id.cc != CallingConventionNaked) + { + addLLVMFnAttrInt(fn_table_entry->llvm_value, "alignstack", 16); + } + addLLVMFnAttr(fn_table_entry->llvm_value, "nounwind"); addLLVMFnAttr(fn_table_entry->llvm_value, "nobuiltin"); if (g->build_mode == BuildModeDebug && fn_table_entry->fn_inline != FnInlineAlways) { |