Printing an expression is error-prone without a MCAsmInfo argument. Remove the operator<< overload and replace callers with MCAsmInfo::printExpr. Some callers are changed to MCExpr::print, with the goal of eventually making it private.
so that subclasses can provide the appropriate MCAsmInfo to print MCExpr objects. At present, llvm/utils/TableGen/AsmMatcherEmitter.cpp constucts a generic MCAsmInfo.
MCExpr::print has an optional MCAsmInfo argument, which is error-prone when omitted. MCExpr::print and the convenience helper operator<< are discouraged to use. Switch to MCAsmInfo::printExpr instead. Use the target-specific MCAsmInfo if available.
## Purpose This patch is one in a series of code-mods that annotate LLVM’s public interface for export. This patch annotates the `llvm/Target` library. These annotations currently have no meaningful impact on the LLVM build; however, they are a prerequisite to support an LLVM Windows DLL (shared library) build. ## Background This effort is tracked in #109483. Additional context is provided in [this discourse](https://discourse.llvm.org/t/psa-annotating-llvm-public-interface/85307), and documentation for `LLVM_ABI` and related annotations is found in the LLVM repo [here](https://github.com/llvm/llvm-project/blob/main/llvm/docs/InterfaceExportAnnotations.rst). A sub-set of these changes were generated automatically using the [Interface Definition Scanner (IDS)](https://github.com/compnerd/ids) tool, followed formatting with `git clang-format`. The bulk of this change is manual additions of `LLVM_ABI` to `LLVMInitializeX` functions defined in .cpp files under llvm/lib/Target. Adding `LLVM_ABI` to the function implementation is required here because they do not `#include "llvm/Support/TargetSelect.h"`, which contains the declarations for this functions and was already updated with `LLVM_ABI` in a previous patch. I considered patching these files with `#include "llvm/Support/TargetSelect.h"` instead, but since TargetSelect.h is a large file with a bunch of preprocessor x-macro stuff in it I was concerned it would unnecessarily impact compile times. In addition, a number of unit tests under llvm/unittests/Target required additional dependencies to make them build correctly against the LLVM DLL on Windows using MSVC. ## Validation Local builds and tests to validate cross-platform compatibility. This included llvm, clang, and lldb on the following configurations: - Windows with MSVC - Windows with Clang - Linux with GCC - Linux with Clang - Darwin with Clang
z/OS creates SystemZMCExpr objects (https://reviews.llvm.org/D153788) while ELF doesn't. Define the SystemZMCAsmInfoGOFF hooks instead of the legacy MCSpecifierExpr:: hooks.
Prepare for removing SystemZMCExpr. Adopt the newer naming convention used by most other targets.
MCAsmLexer.h has been made a forwarder header since #134207
The `.machine push` and `.machine pop` directives were missing from the SystemZ Backend Asm Parser. This PR adds them, and expands the corresponding test to test proper operation. Internally, this is modeled as a simple stack implemented on a `SmallVector<StringRef>`.
- _Float16 is now accepted by Clang. - The half IR type is fully handled by the backend. - These values are passed in FP registers and converted to/from float around each operation. - Compiler-rt conversion functions are now built for s390x including the missing extendhfdf2 which was added. Fixes #50374
Similar to previous migration done for other targets (PowerPC, X86, ARM, etc). Switch from the confusing VariantKind to Specifier, which aligns with Arm and IBM AIX's documentation. In addition, rename *MCExpr::getKind, which confusingly shadows the base class getKind. In the future, relocation specifiers should be encoded as part of SystemZMCExpr instead of MCSymbolRefExpr.