[lit] Add configurable slowest-test limit to --time-tests
Bare --time-tests still defaults to 20; --time-tests=N and --time-tests=all optionally control the slowest-test list shown in the histogram.
[OffloadBundler] Bound compressed bundles by header size, not magic scan (#206745)
When multiple offload bundles are concatenated, the unbundler
(clang-offload-bundler) and llvm-objdump --offloading located the end of
a compressed bundle, and the start of the next one, by scanning for the
next "CCOB" magic string starting right after the current header.
A zstd/zlib-compressed payload can legally contain those four bytes, so
the scan could stop in the middle of the compressed data and truncate
the bundle, corrupting the embedded code object. In practice this
produced a "decomposition" failure for hipBLASLt bf16 GEMMs on gfx942.
Use the authoritative total-size field recorded in the compressed bundle
header (format V2/V3) to compute the exact bundle boundary, and only
scan for the next magic past that point. Legacy bundles without a
recorded size (V1) keep the previous magic-scan fallback.
A skippable-frame fixture that embeds "CCOB" inside the compressed
payload is added to exercise the boundary logic from both
clang-offload-bundler and llvm-objdump --offloading.
[lit] Add configurable slowest-test limit to --time-tests
Bare --time-tests still defaults to 20; --time-tests=N and --time-tests=all optionally control the slowest-test list shown in the histogram.
Revert "[clang] Reland: fix getTemplateInstantiationArgs (#208285)" (#208426)
It caused various breakages; see comments on the PR.
This reverts commit 031b773b01700acf82f5977a5aa6024621b8211c.
Also batch retries of non-functional CAs based on their Rsync base URI
While there, ensure RRDP URIs are ignored when batching in Rsync-only mode.
OK tb@
Revert "[clang] Reject 'auto' storage class with type specifier in C++" (#208436)
Reverts llvm/llvm-project#166004.
Breaks stage 2 build, see comments on PR.
firewall: revisit previous
Well, apply needs to be pushed to render interfaces. Make
sure that we render before reloading filter which actually
calls ifgroup_setup() to rename groups.
[LLVMABI] Implement the System V X86-64 ABI (#194718)
This PR implements the System V X86-64 ABI for the LLVM ABI Library
prototyped in https://github.com/llvm/llvm-project/pull/140112, and
wires it into clang's Codegen.
`X86_64TargetInfo` is a direct parallel to
`clang::CodeGen::X86_64ABIInfo`, but operates entirely on the
`llvm::abi` type system.
The AMD64 ABI classification spec, argument/return lowering , and the
supporting helpers are all reproduced against `llvm::abi::Type` and
FunctionInfo, keeping the ABI logic frontend-independent.
This, similar to the [BPF ABI implementaiton
](https://github.com/llvm/llvm-project/pull/194031/changes)is gated
under the `-fexperimental-abi-lowering` flag.
AMDGPU: Introduce amdgpu triple arch (#206480)
Move towards using the triple for representing incompatible
ISA changes. Use the subarch field to represent the various
incompatible cases. Previously we pretended a single triple arch
was universally compatible, and only distinguished by function
level subtargets. Move towards using distinct triples to enable
more sophisticated toolchain handling in the future, like proper
runtime library linking.
Introduce a new subarch per unique ISA, but also introduce
"major subarches" which are compatible by a set of covered
minor ISA versions. These map to the existing generic targets.
There are a few placeholder subarch entries, which currently
have missing backing generic arches for codegen.
This should be the preferred triple arch name going forward,
but is treated as an alias of amdgcn. This does not yet change
clang to emit the new triples.
Part of #154925
Properly apply constraints to BGPsec Router certs.
The goal is to just warn about overclaiming intermediate certs but
BGPsec Router Keys are also certs and those should use strict constraint
validation.
OK tb@
