Add some API to `APSInt` to make it easier to compare with `int64_t`.
- `APSInt::compareValues(APSInt, APSInt)` returns 1, -1 or 0 for
greater, lesser, or equal, doing the right thing for mismatched
"has-sign" and bitwidths. This is just like `isSameValue()` (and is
now the implementation of it).
- `APSInt::get(int64_t)` gets a signed `APSInt`.
- `operator<(int64_t)`, etc., are implemented trivially via `get()`
and `compareValues()`.
- Also added `APSInt::getUnsigned(uint64_t)` to make it easier to test
`compareValues()`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228239 91177308-0d34-0410-b5e6-96231b3b80d8
This used to do something when we modeled the Cygwin and MinGW
environments as distinct OSs, but now it is not needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228229 91177308-0d34-0410-b5e6-96231b3b80d8
Split out `LineField`, which restricts the legal line numbers. This
will make it easier to be consistent between different node parsers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228226 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Handle LLVM_USE_SANITIZER=Address;Undefined to enable ASan and UBSan
If UBSan is compatible with more of the other sanitizers, maybe we should
deal with this in a better way where we allow combining UBSan with any of
the other sanitizers.
Reviewers: samsonov
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7024
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228219 91177308-0d34-0410-b5e6-96231b3b80d8
Minimize the boilerplate required for the `MDNode` subclass
`DenseMapInfo<>` overrides in `LLVMContextImpl`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228212 91177308-0d34-0410-b5e6-96231b3b80d8
Move all the types of `MDField` to an anonymous namespace in the source
file. This also eliminates the duplication of `ParseMDField()`
declarations in the header for each new field type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228211 91177308-0d34-0410-b5e6-96231b3b80d8
Parts of llvm were not expecting it and we wouldn't print
the entity size of the section.
Given what comdats are used for, having SHF_MERGE sections would be
just a small improvement, so just disable it for now.
Fixes pr22463.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228196 91177308-0d34-0410-b5e6-96231b3b80d8
v2i32, i32, trunc i32 to i16, and truc i32 to i8 stores are legal for
all address spaces. We had marked them as custom in order to lower
them for the private address space, but this is no longer necessary.
This enables lowering of misaligned stores of these types in the
DAGLegalizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228189 91177308-0d34-0410-b5e6-96231b3b80d8
We take care of this during instruction selection now. This
fixes a potential infinite loop when lowering misaligned stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228188 91177308-0d34-0410-b5e6-96231b3b80d8
We were previously doing a post-order traversal and operating on the
list in reverse, however this would occasionaly cause backedges for
loops to be visited before some of the other blocks in the loop.
We know use a reverse post-order traversal, which avoids this issue.
The reverse post-order traversal is not completely ideal, so we need
to manually fixup the list to ensure that inner loop backedges are
visited before outer loop backedges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228186 91177308-0d34-0410-b5e6-96231b3b80d8
Track unresolved nodes under distinct `MDNode`s during `MapMetadata()`,
and resolve them at the end. Previously, these cycles wouldn't get
resolved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228180 91177308-0d34-0410-b5e6-96231b3b80d8
In case CSE reuses a previoulsy unused register the dead-def flag has to
be cleared on the def operand, as exposed by the arm64-cse.ll test.
This fixes PR22439 and the corresponding rdar://19694987
Differential Revision: http://reviews.llvm.org/D7395
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228178 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This change allows users to create SpecialCaseList objects from
multiple local files. This is needed to implement a proper support
for -fsanitize-blacklist flag (allow users to specify multiple blacklists,
in addition to default blacklist, see PR22431).
DFSan can also benefit from this change, as DFSan instrumentation pass now
accepts ABI-lists both from -fsanitize-blacklist= and -mllvm -dfsan-abilist flags.
Go bindings are fixed accordingly.
Test Plan: regression test suite
Reviewers: pcc
Subscribers: llvm-commits, axw, kcc
Differential Revision: http://reviews.llvm.org/D7367
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228155 91177308-0d34-0410-b5e6-96231b3b80d8
This is a bug that was caused due to storing the feature bitset in a 32-bit
variable when it is a 64-bit mask, discarding the top half of the feature set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228151 91177308-0d34-0410-b5e6-96231b3b80d8
