[lldb-dap] expand tilde in dap executable path (#162635)
Users may have multiple devices and would like to resolve the homepath
based on the machine they are on.
expands the tilde `~` character at the front of the given file path.
[libc] Migrate wctype_utils to use wchar_t where applicable. (#166234)
This is a counterpart of
https://github.com/llvm/llvm-project/pull/166225 but for wctype_utils
(which are not yet widely used). For now, I'm just changing the types
from wint_t to wchar_t to match the regular ctype_utils change. The next
change may rename most of the functions to match the name of ctype_utils
variants, so that we could be calling them from the templated code
operating on "const char*" and "const wchar_t*" strings, and the right
function signature would be picked up.
[libc] Migrate ctype_utils to use char instead of int where applicable. (#166225)
Functions like isalpha / tolower can operate on chars internally. This
allows us to get rid of unnecessary casts and open a way to creating
wchar_t overloads with the same names (e.g. for isalpha), that would
simplify templated code for conversion functions (see
315dfe5865962d8a3d60e21d1fffce5214fe54ef).
Add the int->char converstion to public entrypoints implementation
instead. We also need to introduce bounds check on the input argument
values - these functions' behavior is unspecified if the argument is
neither EOF nor fits in "unsigned char" range, but the tests we've had
verified that they always return false for small negative values. To
preserve this behavior, cover it explicitly.
ExpandFp: Require RuntimeLibcallsInfo analysis
Not sure I'm doing the new pass manager handling correctly. I do
not like needing to manually check if the cached module pass is
available and manually erroring in every pass.
Analysis: Add RuntimeLibcall analysis pass
Currently RuntimeLibcallsInfo is a hardcoded list based on the triple.
In the future the available libcall set should be dynamically modifiable
with module flags.
Note this isn't really used yet. TargetLowering is still constructing
its own copy, and untangling that to use this requires several more
steps.
TableGen: Split RuntimeLibcallsEmitter into separate utility header
This information will be needed in more emitters, so start factoring
it to be more reusable.
[flang][OpenMP] Detect complex part designators in atomic variables
Complex part designators do not have their own symbols. A symbol obtained
for the expression `x%re` will be the symbol for `x`, and in this case x
is allowed to be allocatable.
Fixes https://github.com/llvm/llvm-project/issues/166278.
[debugserver] Fix debugserver build on < macOS 10.15 (#166599)
The VM_MEMORY_SANITIZER constant was added in macOs 10.15 and friends.
Support using the constant on older OSes.
Fixes #156144
[clang] Refactor clang's keyword enable/disable mechanism to allow lldb to re-use it (#165323)
lldb's CPlusPlusNameParser is currently identifying keywords using it's
own map implemented using clang/Basic/TokenKinds.def. However, it does
not respect the language options so identifiers can incorrectly
determined to be keywords when using languages in which they are not
keywords.
Rather than implement the logic to enable/disable keywords in both
projects it makes sense for lldb to use clang's implementation.
See #164284 for more information
[LLDB][NativePDB] Add non-overlapping fields in root struct (#166243)
When anonymous unions are used in a struct or vice versa, their fields
are merged into the parent record when using PDB. LLDB tries to recreate
the original definition of the record _with_ the anonymous
unions/structs.
For tagged unions (like `std::optional`) where the tag followed the
anonymous union, the result was suboptimal:
```cpp
// input:
struct Foo {
union {
Bar b;
char c;
};
bool tag;
};
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[libcxxabi][demangle] Fix the cp-to-llvm.sh sync script to copy all headers (#166572)
In https://github.com/llvm/llvm-project/pull/137947 I refactored the
script and added a `copy_files` function, which takes the header files
to copy as an argument.
But because the list of headers is a space separated string, we need to
quote the string. Otherwise we would just copy the first header in the
list.
This patch also adds an `echo` statement in the `copy_files` loop to
print the source/destination. Confirming that the files are copied as
expected.
```
$ libcxxabi/src/demangle/cp-to-llvm.sh
This will overwrite the copies of ItaniumDemangle.h ItaniumNodes.def StringViewExtras.h Utility.h in ../../../llvm/include/llvm/Demangle and DemangleTestCases.inc in ../../../llvm/include/llvm/Demangle/../Testing/Demangle; are you sure? [y/N]y
Copying ./ItaniumDemangle.h to ../../../llvm/include/llvm/Demangle/ItaniumDemangle.h
Copying ./ItaniumNodes.def to ../../../llvm/include/llvm/Demangle/ItaniumNodes.def
Copying ./StringViewExtras.h to ../../../llvm/include/llvm/Demangle/StringViewExtras.h
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[profcheck] Add unknown branch weights to expanded cmpxchg loop. (#165841)
The AtomicExpandPass is responsible for lowering high-level atomic
operations (like `atomicrmw fadd`) that are unsupported by the target
hardware into a cmpxchg retry loop.
Given that we cannot empirically prove the precision branch weights, It
uses the `setExplicitlyUnknownBranchWeightsIfProfiled` function to
explicitly add "unknown" (50/50) branch weights to this branch.
This PR includes fies for the following tests:
```
Transforms/AtomicExpand/AArch64/atomicrmw-fp.ll
Transforms/AtomicExpand/AArch64/pcsections.ll
Transforms/AtomicExpand/AMDGPU/expand-atomic-f32-agent.ll
Transforms/AtomicExpand/AMDGPU/expand-atomic-f32-system.ll
Transforms/AtomicExpand/AMDGPU/expand-atomic-f64-agent.ll
Transforms/AtomicExpand/AMDGPU/expand-atomic-f64-system.ll
Transforms/AtomicExpand/AMDGPU/expand-atomic-rmw-nand.ll
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[dwarf] make dwarf fission compatible with RISCV relaxations 2/2
This patch makes DWARF fission compatible with RISC-V relaxations by
using indirect addressing for the DW_AT_high_pc attribute. This
eliminates the remaining relocations in .dwo files.
[Xtensa] Fix S32C1I instruction encoding and copyPhysReg. (#165174)
Fix S21C1I instruction encoding.Fix special registers parsing for S32C1I
feature. Fix copyPhysReg function for f32 registers copy.
[dwarf] make dwarf fission compatible with RISCV relaxations 1/2
Currently, -gsplit-dwarf and -mrelax are incompatible options in
Clang. The issue is that .dwo files should not contain any
relocations, as they are not processed by the linker. However,
relaxable code emits relocations in DWARF for debug ranges that
reside in the .dwo file when DWARF fission is enabled.
This patch makes DWARF fission compatible with RISC-V relaxations.
It uses the StartxEndx DWARF forms in .debug_rnglists.dwo, which
allow referencing addresses from .debug_addr instead of using
absolute addresses. This approach eliminates relocations from .dwo
files.
[llvm] Emit canonical linkage correct function symbol (#166487)
In the call graph section, we were emitting the temporary label
pointing to the start of the function instead of the canonical linkage
correct function symbol. This patch fixes it and updates the
corresponding tests.
