From 65a9e58a9a650afa1090b1d3e6c40d5797c2c625 Mon Sep 17 00:00:00 2001
From: Luna <git@l4.pm>
Date: Sat, 28 Sep 2019 13:40:11 -0300
Subject: [PATCH] emit a store for the stack fn arguments

---
 hello           | Bin 18840 -> 18840 bytes
 src/codegen.zig |   7 +++++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/hello b/hello
index 4825f6802137e0db6e64b3eae72f16f4e604b49b..a4b50943101958a68325085ee3a0bce188a9117c 100755
GIT binary patch
delta 147
zcmbO+nQ_Ks#tm1PM9gg$oz9Z4KJr?jMeE(I-99&>Z^~_c!E}Nzrn5%nPv-IG3=9m6
zKMqfrFd@{V^QlMk8v%!gXN;Y-KO8zr|9f;k@aRqWP{Mu8;R9p0>kq~Qui1f21|ZX;
n^Gz&B7XpCH>nu_E(aU0fcr%aC7k);b&5TOdC4kgTtNnZct=UF7

delta 147
zcmbO+nQ_Ks#tm1PL?m6SnwJ*GIL6KEF<8JO-SYRx`45|4FrDCw>Go0ilX>tt0|Nu&
ziNg~nObGSpeCpBsMxdegKSPO-N9O~N-h>aw96m61yZ&H2@R|=H!T=QU=zJ3k(uDxs
gE-HVRT~vO6L^tyYec@;1+{~zST>?nmwA#-H03Q`aHUIzs

diff --git a/src/codegen.zig b/src/codegen.zig
index 38eafdd..e71517e 100644
--- a/src/codegen.zig
+++ b/src/codegen.zig
@@ -449,8 +449,11 @@ pub const Codegen = struct {
                     std.debug.warn("SET PARAM LLVM ALLOCA {} to {}\n", param_node.name.lexeme, alloca);
                     param.llvm_alloca = alloca;
 
-                    // TODO store register into stack param
-                    // llvm.LLVMBuildStore(builder, null, assign_expr);
+                    _ = llvm.LLVMBuildStore(
+                        builder,
+                        llvm.LLVMGetParam(func, @intCast(c_uint, idx)),
+                        alloca,
+                    );
                 }
 
                 self.ctx.setScope(fn_sym.scope);