Backport fixes for aarch64-pc-windows-msvc (#45)
* [CodeView] Add pragma push/pop_macro for ARM64_FPSR to enum header
This fixes (one aspect of) compilation of LLDB with MSVC for ARM64.
LLDB source files include intrin.h, and the MSVC intrin.h transitively
includes arm64intr.h, which has an ARM64_FPSR define, which clashes
with the enum declaration.
Differential Revision: https://reviews.llvm.org/D67864
llvm-svn: 372481
* [AArch64] Fix mismatch in prologue and epilogue for funclets on Windows
The generated code for a funclet can have an add to sp in the epilogue
for which there is no corresponding sub in the prologue.
This patch removes the early return from emitPrologue that was
preventing the sub to sp, and instead conditionalizes the appropriate
parts of the rest of the function.
Fixes https://bugs.llvm.org/show_bug.cgi?id=45345
Differential Revision: https://reviews.llvm.org/D77015
* [AArch64] Change AArch64 Windows EH UnwindHelp object to be a fixed object
The UnwindHelp object is used during exception handling by runtime
code. It must be findable from a fixed offset from FP.
This change allocates the UnwindHelp object as a fixed object (as is
done for x86_64) to ensure that both the generated code and runtime
agree on the location of the object.
Fixes https://bugs.llvm.org/show_bug.cgi?id=45346
Differential Revision: https://reviews.llvm.org/D77016
Co-authored-by: Martin Storsjo <martin@martin.st>
8 files changed
