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//===- TypeSize.cpp - Wrapper around type sizes------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/TypeSize.h"
#include "llvm/Support/CommandLine.h"
#include "DebugOptions.h"
using namespace llvm;
#ifndef STRICT_FIXED_SIZE_VECTORS
namespace {
struct CreateScalableErrorAsWarning {
/// The ScalableErrorAsWarning is a temporary measure to suppress errors from
/// using the wrong interface on a scalable vector.
static void *call() {
return new cl::opt<bool>(
"treat-scalable-fixed-error-as-warning", cl::Hidden, cl::init(false),
cl::desc(
"Treat issues where a fixed-width property is requested from a "
"scalable type as a warning, instead of an error."),
cl::ZeroOrMore);
}
};
} // namespace
static ManagedStatic<cl::opt<bool>, CreateScalableErrorAsWarning>
ScalableErrorAsWarning;
void llvm::initTypeSizeOptions() { *ScalableErrorAsWarning; }
#else
void llvm::initTypeSizeOptions() {}
#endif
void llvm::reportInvalidSizeRequest(const char *Msg) {
#ifndef STRICT_FIXED_SIZE_VECTORS
if (*ScalableErrorAsWarning) {
WithColor::warning() << "Invalid size request on a scalable vector; " << Msg
<< "\n";
return;
}
#endif
report_fatal_error("Invalid size request on a scalable vector.");
}
TypeSize::operator TypeSize::ScalarTy() const {
if (isScalable()) {
reportInvalidSizeRequest(
"Cannot implicitly convert a scalable size to a fixed-width size in "
"`TypeSize::operator ScalarTy()`");
return getKnownMinValue();
}
return getFixedValue();
}
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