From 24db60eb4b5ca48d57e1fb276ed640aea699d19a Mon Sep 17 00:00:00 2001
From: Jim Powers <jim@corruptmemory.com>
Date: Fri, 1 Jan 2021 16:41:07 -0500
Subject: [PATCH] Fix for `c_vararg` issue

Fixes #817
---
 src/ir.cpp       | 6 ++++++
 src/ir_print.cpp | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/ir.cpp b/src/ir.cpp
index 90cce3699..62eee2f9f 100644
--- a/src/ir.cpp
+++ b/src/ir.cpp
@@ -3469,6 +3469,12 @@ irValue *ir_emit_call(irProcedure *p, irValue *value, Array<irValue *> const &ar
 		}
 	}
 
+	if (is_c_vararg) {
+			for (isize i = param_count; i < args.count; i++) {
+				array_add(&processed_args, args[i]);
+			}
+	}
+
 	if (inlining == ProcInlining_none) {
 		inlining = p->inlining;
 	}
diff --git a/src/ir_print.cpp b/src/ir_print.cpp
index 594cc57c2..d4a63506e 100644
--- a/src/ir_print.cpp
+++ b/src/ir_print.cpp
@@ -2310,7 +2310,7 @@ void ir_print_instr(irFileBuffer *f, irModule *m, irValue *value) {
 					ir_print_type(f, m, t);
 					ir_write_byte(f, ' ');
 					ir_print_value(f, m, arg, t);
-					param_index++;
+					arg_index++;
 				}
 			} else {
 				// GB_ASSERT(call->args.count == params->variables.count);