From eefa60e376ba44e163a501143ff44dde445b4bfe Mon Sep 17 00:00:00 2001
From: mlugg <mlugg@mlugg.co.uk>
Date: Fri, 1 Mar 2024 06:01:53 +0000
Subject: AstGen: optimize ZIR for `-1` literal

---
 lib/std/zig/AstGen.zig | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'lib/std')

diff --git a/lib/std/zig/AstGen.zig b/lib/std/zig/AstGen.zig
index 0968d85a6a..61ff3413a1 100644
--- a/lib/std/zig/AstGen.zig
+++ b/lib/std/zig/AstGen.zig
@@ -8458,7 +8458,14 @@ fn numberLiteral(gz: *GenZir, ri: ResultInfo, node: Ast.Node.Index, source_node:
                     try astgen.errNoteTok(num_token, "use '-0.0' for a floating-point signed zero", .{}),
                 },
             ),
-            1 => .one,
+            1 => {
+                // Handle the negation here!
+                const result: Zir.Inst.Ref = switch (sign) {
+                    .positive => .one,
+                    .negative => .negative_one,
+                };
+                return rvalue(gz, ri, result, source_node);
+            },
             else => try gz.addInt(num),
         },
         .big_int => |base| big: {
-- 
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