From 4ff5a3cd94b0532f2cd713082948b00a8a36336f Mon Sep 17 00:00:00 2001
From: joachimschmidt557 <joachim.schmidt557@outlook.com>
Date: Wed, 7 Apr 2021 15:15:14 +0200
Subject: stage2 regalloc: Add unit test for getReg

---
 src/codegen.zig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/codegen.zig')

diff --git a/src/codegen.zig b/src/codegen.zig
index cacf51730a..220a8fa374 100644
--- a/src/codegen.zig
+++ b/src/codegen.zig
@@ -1735,7 +1735,8 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type {
 
             switch (result) {
                 .register => |reg| {
-                    try self.register_manager.getRegAssumeFree(toCanonicalReg(reg), &inst.base);
+                    try self.register_manager.registers.ensureCapacity(self.gpa, self.register_manager.registers.count() + 1);
+                    self.register_manager.getRegAssumeFree(toCanonicalReg(reg), &inst.base);
                 },
                 else => {},
             }
-- 
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