From e272c29c163538159eb81f60cb5da3d7ebe099f9 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Wed, 31 Mar 2021 15:06:03 -0700
Subject: Sema: implement switch validation for ranges

---
 src/codegen.zig | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/codegen.zig')

diff --git a/src/codegen.zig b/src/codegen.zig
index 4142b562b3..c0b32fca66 100644
--- a/src/codegen.zig
+++ b/src/codegen.zig
@@ -3994,7 +3994,10 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type {
         fn fail(self: *Self, src: LazySrcLoc, comptime format: []const u8, args: anytype) InnerError {
             @setCold(true);
             assert(self.err_msg == null);
-            const src_loc = src.toSrcLocWithDecl(self.mod_fn.owner_decl);
+            const src_loc = if (src != .unneeded)
+                src.toSrcLocWithDecl(self.mod_fn.owner_decl)
+            else
+                self.src_loc;
             self.err_msg = try ErrorMsg.create(self.bin_file.allocator, src_loc, format, args);
             return error.CodegenFail;
         }
-- 
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