From 92cb330e160388bca7ddd7ceecbd7157ce92247b Mon Sep 17 00:00:00 2001 From: kristopher tate Date: Sun, 29 Jul 2018 12:27:50 +0900 Subject: src/codegen.cpp: @handle(): replace hacky ref chain with llvm intrinsic; Tracking Issue #1296 ; --- src/codegen.cpp | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) (limited to 'src/codegen.cpp') diff --git a/src/codegen.cpp b/src/codegen.cpp index bd708e3824..539356ef2f 100644 --- a/src/codegen.cpp +++ b/src/codegen.cpp @@ -4146,11 +4146,24 @@ static LLVMValueRef ir_render_frame_address(CodeGen *g, IrExecutable *executable return LLVMBuildCall(g->builder, get_frame_address_fn_val(g), &zero, 1, ""); } +static LLVMValueRef get_handle_fn_val(CodeGen *g) { + if (g->coro_frame_fn_val) + return g->coro_frame_fn_val; + + LLVMTypeRef fn_type = LLVMFunctionType( LLVMPointerType(LLVMInt8Type(), 0) + , nullptr, 0, false); + Buf *name = buf_sprintf("llvm.coro.frame"); + g->coro_frame_fn_val = LLVMAddFunction(g->module, buf_ptr(name), fn_type); + assert(LLVMGetIntrinsicID(g->coro_frame_fn_val)); + + return g->coro_frame_fn_val; +} + static LLVMValueRef ir_render_handle(CodeGen *g, IrExecutable *executable, IrInstructionHandle *instruction) { - LLVMValueRef ptr = ir_llvm_value(g, executable->fn_entry->ir_executable.coro_handle->other); - return LLVMBuildBitCast(g->builder, ptr, g->builtin_types.entry_promise->type_ref, ""); + LLVMValueRef zero = LLVMConstNull(g->builtin_types.entry_promise->type_ref); + return LLVMBuildCall(g->builder, get_handle_fn_val(g), &zero, 0, ""); } static LLVMValueRef render_shl_with_overflow(CodeGen *g, IrInstructionOverflowOp *instruction) { -- cgit v1.2.3