spirv: Memory accesses with PhysicalStorageBuffer must use Aligned

[igaryhe]

Zig Version

0.15.0-dev.34+8e0a4ca4b

Steps to Reproduce and Observed Behavior

sample code:

const std = @import("std");
const gpu = std.gpu;

const v4 = @Vector(4, f32);

const Input = struct {
    color: v4,
};

const PushConstant = extern struct {
    buffer: [*]addrspace(.global) Input,
};

extern var iid: u32 addrspace(.input);
extern var pc: PushConstant addrspace(.push_constant);
extern var color: v4 addrspace(.output);

export fn main() callconv(.spirv_vertex) void {
    gpu.location(&color, 0);
    const input = pc.buffer[iid];
    color = input.color;
}

compile with:

zig build-obj test.zig -target spirv64-vulkan -ofmt=spirv -mcpu vulkan_v1_2+int64 -fno-llvm

running spirv-val test.spv returns:

error: line 61: Memory accesses with PhysicalStorageBuffer must use Aligned.
  %input = OpLoad %test_Input %23 None

Expected Behavior

alignment should be specified when loading from a PhysicalStorageBuffer pointer. the expected behaviour is that the validator shouldn't complain about anything.