From 6a87ce0b62a3c9d3a795f3a16b1650f4a8c3b2fc Mon Sep 17 00:00:00 2001
From: Luuk de Gram <Luukdegram@users.noreply.github.com>
Date: Sat, 16 Jan 2021 18:22:20 +0100
Subject: Generate correct opcode for 'addGen' depending on type

---
 src/codegen/wasm.zig | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/codegen')

diff --git a/src/codegen/wasm.zig b/src/codegen/wasm.zig
index b5e044b258..70e9de7baf 100644
--- a/src/codegen/wasm.zig
+++ b/src/codegen/wasm.zig
@@ -264,7 +264,15 @@ pub const Context = struct {
         try self.emitWValue(lhs);
         try self.emitWValue(rhs);
 
-        try self.code.append(0x6A); // i32.add
+        const opcode: u8 = switch (inst.base.ty.tag()) {
+            .u32, .i32 => 0x6A, //i32.add
+            .u64, .i64 => 0x7C, //i64.add
+            .f32 => 0x92, //f32.add
+            .f64 => 0xA0, //f64.add
+            else => return self.fail(inst.base.src, "TODO - Implement wasm genAdd for type '{s}'", .{inst.base.ty.tag()}),
+        };
+
+        try self.code.append(opcode);
         return WValue.none;
     }
 
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