motiejus/zig
1
Fork 0
Code Releases Activity

@frameSize works via PrefixData

Browse Source
This commit is contained in:
Andrew Kelley
2019-07-25 22:24:01 -04:00
parent 538c0cd225
commit 7b3686861f
7 changed files with 30 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/codegen.cpp
View File

@@ -4914,13 +4914,16 @@ static LLVMValueRef ir_render_coro_resume(CodeGen *g, IrExecutable *executable,
return nullptr;
}
static LLVMValueRef ir_render_frame_size(CodeGen *g, IrExecutable *executable, IrInstructionFrameSizeGen *instruction) {
static LLVMValueRef ir_render_frame_size(CodeGen *g, IrExecutable *executable,
IrInstructionFrameSizeGen *instruction)
{
LLVMTypeRef usize_llvm_type = g->builtin_types.entry_usize->llvm_type;
LLVMTypeRef ptr_usize_llvm_type = LLVMPointerType(usize_llvm_type, 0);
LLVMValueRef fn_val = ir_llvm_value(g, instruction->fn);
LLVMValueRef frame_ptr = ir_llvm_value(g, instruction->frame_ptr);
LLVMValueRef resume_index_ptr = LLVMBuildStructGEP(g->builder, frame_ptr, coro_resume_index_index, "");
LLVMValueRef one = LLVMConstInt(g->builtin_types.entry_usize->llvm_type, 1, false);
LLVMBuildStore(g->builder, one, resume_index_ptr);
return ZigLLVMBuildCall(g->builder, fn_val, &frame_ptr, 1, LLVMFastCallConv, ZigLLVM_FnInlineAuto, "");
LLVMValueRef casted_fn_val = LLVMBuildBitCast(g->builder, fn_val, ptr_usize_llvm_type, "");
LLVMValueRef negative_one = LLVMConstInt(LLVMInt32Type(), -1, true);
LLVMValueRef prefix_ptr = LLVMBuildInBoundsGEP(g->builder, casted_fn_val, &negative_one, 1, "");
return LLVMBuildLoad(g->builder, prefix_ptr, "");
}
static void set_debug_location(CodeGen *g, IrInstruction *instruction) {
@@ -6409,13 +6412,16 @@ static void do_code_gen(CodeGen *g) {
}
if (is_async) {
LLVMTypeRef usize_type_ref = g->builtin_types.entry_usize->llvm_type;
LLVMValueRef size_val = LLVMConstInt(usize_type_ref, fn_table_entry->frame_type->abi_size, false);
ZigLLVMFunctionSetPrefixData(fn_table_entry->llvm_value, size_val);
if (!g->strip_debug_symbols) {
AstNode *source_node = fn_table_entry->proto_node;
ZigLLVMSetCurrentDebugLocation(g->builder, (int)source_node->line + 1,
(int)source_node->column + 1, get_di_scope(g, fn_table_entry->child_scope));
}
IrExecutable *executable = &fn_table_entry->analyzed_executable;
LLVMTypeRef usize_type_ref = g->builtin_types.entry_usize->llvm_type;
LLVMBasicBlockRef bad_resume_block = LLVMAppendBasicBlock(g->cur_fn_val, "BadResume");
LLVMPositionBuilderAtEnd(g->builder, bad_resume_block);
gen_assertion_scope(g, PanicMsgIdBadResume, fn_table_entry->child_scope);
@@ -6424,7 +6430,6 @@ static void do_code_gen(CodeGen *g) {
LLVMPositionBuilderAtEnd(g->builder, get_size_block);
assert(fn_table_entry->frame_type->abi_size != 0);
assert(fn_table_entry->frame_type->abi_size != SIZE_MAX);
LLVMValueRef size_val = LLVMConstInt(usize_type_ref, fn_table_entry->frame_type->abi_size, false);
LLVMBuildRet(g->builder, size_val);
LLVMPositionBuilderAtEnd(g->builder, fn_table_entry->preamble_llvm_block);