From 747f58366a25593431a0e8ff85d76095e0e39e74 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Mon, 24 Apr 2023 13:32:25 -0700
Subject: [PATCH] wasm backend: fix airMemset with slices

---
 src/arch/wasm/CodeGen.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/arch/wasm/CodeGen.zig b/src/arch/wasm/CodeGen.zig
index e3f07d0606..adca406b53 100644
--- a/src/arch/wasm/CodeGen.zig
+++ b/src/arch/wasm/CodeGen.zig
@@ -4392,7 +4392,7 @@ fn airMemset(func: *CodeGen, inst: Air.Inst.Index) InnerError!void {
     const value = try func.resolveInst(bin_op.rhs);
     const len = switch (ptr_ty.ptrSize()) {
         .Slice => try func.sliceLen(ptr),
-        .One => @as(WValue, .{ .imm64 = ptr_ty.childType().arrayLen() }),
+        .One => @as(WValue, .{ .imm32 = @intCast(u32, ptr_ty.childType().arrayLen()) }),
         .C, .Many => unreachable,
     };
     try func.memset(ptr, len, value);