This reverts commit SVN r313668. The original test case attempted to
write a pointer value into 16-bits, although the value may exceed the
range representable in 16-bits. Ensure that the symbol is located in
the address space such that its absolute address is representable in
16-bits. This should fix the assertion failure that was seen on the
Windows hosts.
llvm-svn: 313822
This reverts commit SVN r313654. Seems that it is triggering an
assertion on Windows specifically. Revert until I can build on Windows
and look into what is happening there.
llvm-svn: 313668
Add support for the R_AARCH64_ABS{16,32} relocations in the execution
engine. This is primarily used for DWARF debug information relocations
and needed by the LLVM JIT to support JITing for lldb.
Patch by Alex Langford!
llvm-svn: 313654
Re-committing after r311325 fixed an unintentional use of '#' comments in
clang.
The '#' token is not a comment for all targets (on ARM and AArch64 it marks an
immediate operand), so we shouldn't treat it as such.
Comments are already converted to AsmToken::EndOfStatement by
AsmLexer::LexLineComment, so this check was unnecessary.
Differential Revision: https://reviews.llvm.org/D36405
llvm-svn: 311326
The %T lit expansion expands to a common directory shared between all the tests in the same directory, which is unexpected and unintuitive, and more importantly, it's been a source of subtle race conditions and flaky tests. In https://reviews.llvm.org/D35396, it was agreed that it would be best to simply ban %T and only keep %t, which is unique to each test. When a test needs a temporary directory, it can just create one using mkdir %t.
This patch removes %T in llvm.
Differential Revision: https://reviews.llvm.org/D36495
llvm-svn: 310953
The '#' token is not a comment for all targets (on ARM and AArch64 it marks an
immediate operand), so we shouldn't treat it as such.
Comments are already converted to AsmToken::EndOfStatement by
AsmLexer::LexLineComment, so this check was unnecessary.
Differential Revision: https://reviews.llvm.org/D36405
llvm-svn: 310457
I was surprised to see the code model being passed to MC. After all,
it assembles code, it doesn't create it.
The one place it is used is in the expansion of .cfi directives to
handle .eh_frame being more that 2gb away from the code.
As far as I can tell, gnu assembler doesn't even have an option to
enable this. Compiling a c file with gcc -mcmodel=large produces a
regular looking .eh_frame. This is probably because in practice linker
parse and recreate .eh_frames.
In llvm this is used because the JIT can place the code and .eh_frame
very far apart. Ideally we would fix the jit and delete this
option. This is hard.
Apart from confusion another problem with the current interface is
that most callers pass CodeModel::Default, which is bad since MC has
no way to map it to the target default if it actually needed to.
This patch then replaces the argument with a boolean with a default
value. The vast majority of users don't ever need to look at it. In
fact, only CodeGen and llvm-mc use it and llvm-mc just to enable more
testing.
llvm-svn: 309884
This patch implements two GOT relocations:
R_AARCH64_ADR_GOT_PAGE and R_AARCH64_LD64_GOT_LO12_NC
Differential revision: https://reviews.llvm.org/D28571
llvm-svn: 294191
This patch doesn't create thunk for branch operation when following conditions are met:
- Architecture is AArch64
- Relocation target is in the same object file
- Relocation target is close enough to be encoded in immediate offset
In such case we branch directly to the target instead of branching to thunk
Differential revision: https://reviews.llvm.org/D28108
llvm-svn: 291431
Summary: The relocation is missing mask so an address that has non-zero bits in 47:43 may overwrite the register number. (Frequently shows up as target register changed to `xzr`....)
Reviewers: t.p.northover, lhames
Subscribers: davide, aemerson, rengolin, llvm-commits
Differential Revision: https://reviews.llvm.org/D27609
llvm-svn: 289880
On AArch64, GOT references are page relative (ADRP + LDR), so they can't be
applied until we know exactly where, within a page, the GOT entry will be in
the target address space.
Fixes <rdar://problem/18693976>.
llvm-svn: 220347
full paths for its first argument.
This allows us to remove the annoying sed lines in the test cases, and write
direct references to file names in stub_addr calls (rather than <filename>
placeholders).
llvm-svn: 214211
Factor out the addend encoding into a helper function and simplify the
processRelocationRef.
Also add a few simple rtdyld tests. More tests to come once GOTs can be tested too.
Related to <rdar://problem/17768539>
llvm-svn: 213689
Saleem Abdulrasool