From 1596bca92d4d8b3457cbfacec24e2a2129bba40e Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Wed, 26 Feb 2020 22:29:12 +0000
Subject: Add `intrinsics.cpu_relax`

---
 src/ir.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/ir.cpp')

diff --git a/src/ir.cpp b/src/ir.cpp
index e13530aca..6a56eb387 100644
--- a/src/ir.cpp
+++ b/src/ir.cpp
@@ -197,6 +197,7 @@ gbAllocator ir_allocator(void) {
 	IR_INSTR_KIND(ZeroInit, struct { irValue *address; })             \
 	IR_INSTR_KIND(Store,    struct { irValue *address, *value; bool is_volatile; }) \
 	IR_INSTR_KIND(Load,     struct { Type *type; irValue *address; i64 custom_align; }) \
+	IR_INSTR_KIND(InlineCode, struct { BuiltinProcId id; Array<irValue *> operands; }) \
 	IR_INSTR_KIND(AtomicFence, struct { BuiltinProcId id; })          \
 	IR_INSTR_KIND(AtomicStore, struct {                               \
 		irValue *address, *value;                                     \
@@ -1063,6 +1064,14 @@ irValue *ir_instr_load(irProcedure *p, irValue *address) {
 	return v;
 }
 
+irValue *ir_instr_inline_code(irProcedure *p, BuiltinProcId id, Array<irValue *> operands) {
+	irValue *v = ir_alloc_instr(p, irInstr_InlineCode);
+	irInstr *i = &v->Instr;
+	i->InlineCode.id = id;
+	i->InlineCode.operands = operands;
+	return v;
+}
+
 irValue *ir_instr_atomic_fence(irProcedure *p, BuiltinProcId id) {
 	irValue *v = ir_alloc_instr(p, irInstr_AtomicFence);
 	irInstr *i = &v->Instr;
@@ -6914,6 +6923,9 @@ irValue *ir_build_builtin_proc(irProcedure *proc, Ast *expr, TypeAndValue tv, Bu
 
 
 	// "Intrinsics"
+	case BuiltinProc_cpu_relax:
+		return ir_emit(proc, ir_instr_inline_code(proc, id, {}));
+
 	case BuiltinProc_atomic_fence:
 	case BuiltinProc_atomic_fence_acq:
 	case BuiltinProc_atomic_fence_rel:
-- 
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