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spirv: forbid pointer arithmetic

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Robin Voetter 2024-10-31 20:24:37 +01:00
parent e5f5229fd6
commit 08ad7afc1e
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1 changed files with 18 additions and 0 deletions
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18
src/Sema.zig
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@ -17605,6 +17605,24 @@ fn analyzePtrArithmetic(
} else break :rs ptr_src;
};
const target = zcu.getTarget();
if (target_util.arePointersLogical(target, ptr_info.flags.address_space)) {
return sema.failWithOwnedErrorMsg(block, msg: {
const msg = try sema.errMsg(op_src, "illegal pointer arithmetic on pointer of type '{}'", .{ptr_ty.fmt(pt)});
errdefer msg.destroy(sema.gpa);
const backend = target_util.zigBackend(target, zcu.comp.config.use_llvm);
try sema.errNote(op_src, msg, "arithmetic cannot be performed on pointers with address space '{s}' on target {s}-{s} by compiler backend {s}", .{
@tagName(ptr_info.flags.address_space),
target.cpu.arch.genericName(),
@tagName(target.os.tag),
@tagName(backend),
});
break :msg msg;
});
}
try sema.requireRuntimeBlock(block, op_src, runtime_src);
return block.addInst(.{
.tag = air_tag,