[OpenMP] Use ext linkage for kernels handles and globals handles keep… (#202827)
… linkage
Host handles are now emmitted with external linkage to clash if two
kernels with the same name are registered. This could have happen right
now and silently corrupt the program, but it can happen more easily once
we allow users to name their kernels.
In the same patch we make global variable handles retain the linkage of
the global variable, forcing clashes for external ones and continue to
support weak use cases. The exception is common linkage, which we
transform into weak for the entry as there is no zero initialization.
[lldb] Add more Mach-O export trie unit tests (NFC) (#202814)
Extend MachOTrieTest with cases that exercise ParseTrieEntries paths the
existing tests miss, all against the current parser with no functional
change. They cover well-formed edge cases (sibling breadth, empty and
single-character edge labels, large multi-byte addresses, ARM/Thumb and
stub-resolver handling, mixed exports and re-exports) and malformed
input that must be tolerated or rejected without crashing (a shared
subtree, an unterminated edge string, an excessive children count, a
truncated terminalSize, and an out-of-range start offset).
Assisted-by: Claude
[mlir][linalg] Add inverse triag, log to elementwise ops (#202786)
Follow up to #200950
Add acos, acosh, asin, asinh, atan, atanh, log10, log1p, log2 to
elementwise ops
These math operations are added as UnaryFn enum cases and supported
through linalg.elementwise only, with no named op definitions. The
specialize pass converts linalg.generic containing these math ops to
linalg.elementwise when emitting category ops
Co-authored-by: Vinit Deodhar <vinitdeodhar at users.noreply.github.com>
[CIR] Add custom assembly format for alloca op to fix flag parsing (#198962)
The previously used assembly format was generating code like:
```cpp
if (::mlir::succeeded(parser.parseOptionalComma())) {
props.init = parser.getBuilder().getUnitAttr();
if (parser.parseKeyword("init"))
return ::mlir::failure();
}
```
This means that upon seeing any comma, the parser would immediately set
the `init` attribute and then expect the keyword "init" to follow. So a
valid input like `["n", const]` would fail with:
```bash
error: expected 'init'
```
[asan] Fix asan_new_delete.cpp C++ header resolution under -nostdinc++ (#202816)
The COMPILER_RT_ASAN_ENABLE_EXCEPTIONS gate in asan/CMakeLists.txt
enables -fexceptions on the C++ slice (RTAsan_cxx /
RTAsan_dynamic_cxx — asan_new_delete.cpp) and tries to expose C++
standard headers to that TU (for forthcoming std::bad_alloc support)
by stripping -nostdinc++ from its cflags. The strip works for native
standalone builds but is wrong for cross builds: the host C++ headers
aren't valid for the target.
Split the C++-slice flag handling into two paths inside the existing
EXCEPTIONS gate:
* In-tree libc++ available (TARGET cxx-headers OR HAVE_LIBCXX):
keep -nostdinc++, append ${COMPILER_RT_CXX_CFLAGS} (a generator
expression that expands to "-isystem <prepared cxx-headers dir>"),
and add cxx-headers to DEPS so the header tree is staged before
the compile. Mirrors the pattern in orc / fuzzer / memprof /
tsan / xray.
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[CIR] Fix inline asm operand-attr indexing (#202790)
Inline asm with a register operand ordered before a memory operand, e.g. `asm("" :: "r"(i), "m"(g))`, crashes CIRGen at the `"pointer type expected"` / `"element type differs from pointee type"` assertions in `emitAsmStmt`.
The element-type-attribute loop walks `argElemTypes` with a counter that only advances on entries that have an element type, but uses that counter to index the parallel `args` array. The two arrays are the same length (every operand pushes to both, and `assert(args.size() == operandAttrs.size())` enforces it), so the matching value for `argElemTypes[k]` is `args[k]`. As soon as a register operand (null element type) precedes a memory operand (non-null), the counter desyncs and reads the wrong operand — a non-pointer, or a pointer with the wrong pointee.
The fix indexes `args` positionally with `llvm::enumerate`, matching classic CodeGen in `CGStmt.cpp`, which iterates `llvm::enumerate(ArgElemTypes)` and attaches the element-type attribute at `Pair.index()`. New `t35` in `inline-asm.c` covers the register-before-memory ordering and checks the lowered IR against classic codegen.
[flang][OpenMP] Remove CheckSymbolName{,s}, NFC (#202811)
These functions checked if each OmpObject had a symbol, and emitted a
diagnostic if not. Name not having a symbol is an internal compiler
error (which will be detected separately), and not something actionable
for the user.
Remove these functions since they don't serve any purpose anymore.
[X86] combineTargetShuffle - fold vpermv3(widen(x),mask,widen(y)) -> vpermv(widen(concat(x,y)),mask') (#203031)
We already handle the case where the src vectors were half size, but we
can generalize this to widening from xmm to zmm as well - mainly to help
non-VLX builds
A couple of codesize increases in non-VLX builds - mostly from
additional asm / kill comments, but also due to a couple of poor folds
in combineConcatVectorOps that need further yak shaving.
[AMDGPU][GISel] Handle G_AMDGPU_COPY_VCC_SCC in isLaneMaskFromSameBlock (#202923)
This avoids generating some redundant ANDs with exec.
---------
Co-authored-by: Matt Arsenault <arsenm2 at gmail.com>
