The forwarding header is left in place because of its use in
`polly/lib/External/isl/interface/extract_interface.cc`, but I have
added a GCC warning about the fact it is deprecated, because it is used
in `isl` from where it is included by Polly.
Trying to invoke an x64 binary on ARM64 Windows 10 won't work, and will
print an obscure error message. Choose the 32-bit linker instead, which
will run under emulation.
The x64 linker should in theory run under ARM64 Windows 11. We could
detect this using IsWow64GuestMachineSupported(), but I don't have a
setup to test that with at the moment.
Differential Revision: https://reviews.llvm.org/D120681
This relands 73e585e44d (and 0574b5fc657451), with a fix for
the failing test (by using Optional<StringRef>s instead of
making StringRef::empty() mean absence of value).
Differential Revision: https://reviews.llvm.org/D118070
Revert "Reland "[lld/coff] Make lld-link work in a non-MSVC shell, add /winsysroot:""
This reverts commit 0574b5fc657451c9d13d3f6d8fe14ea15c23a681 and 73e585e44d68cf77e2e3274e98c9615156a7d909.
This change is causing the test Driver/cl-options.c to fail on Windows buildbots.
https://lab.llvm.org/staging/#/builders/204/builds/1343
