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[spirv] Replace bitwiseCast with llvm::bit_cast 

PiperOrigin-RevId: 271035618
This commit is contained in:
Lei Zhang 2019-09-24 19:24:33 -07:00 committed by A. Unique TensorFlower
parent f7ad5b411c
commit cf00feed03
1 changed files with 3 additions and 11 deletions
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14
mlir/lib/Dialect/SPIRV/SPIRVOps.cpp
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@ -29,6 +29,7 @@
#include "mlir/IR/StandardTypes.h"
#include "mlir/Support/Functional.h"
#include "mlir/Support/StringExtras.h"
#include "llvm/ADT/bit.h"
using namespace mlir;
@ -53,15 +54,6 @@ static constexpr const char kVariableAttrName[] = "variable";
// Common utility functions
//===----------------------------------------------------------------------===//
template <typename Dst, typename Src>
inline Dst bitwiseCast(Src source) noexcept {
Dst dest;
static_assert(sizeof(source) == sizeof(dest),
"bitwiseCast requires same source and destination bitwidth");
std::memcpy(&dest, &source, sizeof(dest));
return dest;
}
static LogicalResult extractValueFromConstOp(Operation *op,
int32_t &indexValue) {
auto constOp = dyn_cast<spirv::ConstantOp>(op);
@ -127,7 +119,7 @@ parseEnumAttribute(EnumClass &value, OpAsmParser &parser, OperationState &state,
return failure();
}
state.addAttribute(attrName, parser.getBuilder().getI32IntegerAttr(
bitwiseCast<int32_t>(value)));
llvm::bit_cast<int32_t>(value)));
return success();
}
@ -1863,7 +1855,7 @@ static ParseResult parseVariableOp(OpAsmParser &parser, OperationState &state) {
}
auto attr = parser.getBuilder().getI32IntegerAttr(
bitwiseCast<int32_t>(ptrType.getStorageClass()));
llvm::bit_cast<int32_t>(ptrType.getStorageClass()));
state.addAttribute(spirv::attributeName<spirv::StorageClass>(), attr);
return success();