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wasm backend: delete dead code in lowerConstant

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This commit is contained in:
Andrew Kelley 2023-08-22 15:59:52 -07:00
parent ada0010471
commit 6780a6bbfa
1 changed files with 0 additions and 45 deletions
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45
src/arch/wasm/CodeGen.zig
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@ -3067,51 +3067,6 @@ fn lowerConstant(func: *CodeGen, arg_val: Value, ty: Type) InnerError!WValue {
}
if (val.isUndefDeep(mod)) return func.emitUndefined(ty);
if (val.ip_index == .none) switch (ty.zigTypeTag(mod)) {
.Array => |zig_type| return func.fail("Wasm TODO: LowerConstant for zigTypeTag {}", .{zig_type}),
.Struct => {
const struct_obj = mod.typeToStruct(ty).?;
assert(struct_obj.layout == .Packed);
var buf: [8]u8 = .{0} ** 8; // zero the buffer so we do not read 0xaa as integer
val.writeToPackedMemory(ty, func.bin_file.base.options.module.?, &buf, 0) catch unreachable;
const int_val = try mod.intValue(
struct_obj.backing_int_ty,
std.mem.readIntLittle(u64, &buf),
);
return func.lowerConstant(int_val, struct_obj.backing_int_ty);
},
.Vector => {
assert(determineSimdStoreStrategy(ty, mod) == .direct);
var buf: [16]u8 = undefined;
val.writeToMemory(ty, mod, &buf) catch unreachable;
return func.storeSimdImmd(buf);
},
.Frame,
.AnyFrame,
=> return func.fail("Wasm TODO: LowerConstant for type {}", .{ty.fmt(mod)}),
.Float,
.Union,
.Optional,
.ErrorUnion,
.ErrorSet,
.Int,
.Enum,
.Bool,
.Pointer,
=> unreachable, // handled below
.Type,
.Void,
.NoReturn,
.ComptimeFloat,
.ComptimeInt,
.Undefined,
.Null,
.Opaque,
.EnumLiteral,
.Fn,
=> unreachable, // comptime-only types
};
switch (ip.indexToKey(val.ip_index)) {
.int_type,
.ptr_type,