This commit fixes undefined behaviour that caused the revert in r214249.
The problem was two unsequenced operations on a `DenseMap<>`, giving
different behaviour in GCC and Clang. This:
DenseMap<T*, unsigned> DM;
for (auto &X : ...)
DM[&X] = DM.size() + 1;
should have been:
DenseMap<T*, unsigned> DM;
for (auto &X : ...) {
unsigned Size = DM.size();
DM[&X] = Size + 1;
}
Until r214242, this difference between compilers didn't matter. In
r214242, `OrderMap::LastGlobalValueID` was introduced and compared
against IDs, which in GCC were off-by-one my expectations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214270 91177308-0d34-0410-b5e6-96231b3b80d8
We can treat ds_read2_* as a single offset if the offsets are adjacent.
No test since emission of read2 instructions for partially
aligned loads isn't implemented yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214269 91177308-0d34-0410-b5e6-96231b3b80d8
Remove the move assignment added in r214213, since it wasn't necessary
to fix the bots (r214224 was the magic touch).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214260 91177308-0d34-0410-b5e6-96231b3b80d8
use in -verify mode.
This patch adds three hidden command line options to llvm-rtdyld:
-target-addr-start <start-addr> : Specify the start of the virtual address
space on the phony target.
-target-addr-end <end-addr> : Specify the end of the virtual address space
on the phony target.
-target-section-sep <sep> : Specify the separation (in bytes) between the
end of one section and the start of the next.
These options automatically default to sane values for the target platform. In
particular, they allow narrow (e.g. 32-bit, 16-bit) targets to be tested from
wider (e.g. 64-bit, 32-bit) hosts without overflowing pointers.
The section separation option defaults to zero, but can be set to a large number
(e.g. 1 << 32) to force large separations between sections in order to
stress-test large-code-model code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214255 91177308-0d34-0410-b5e6-96231b3b80d8
r214242 was subtle enough it really deserves a targeted test with
comments. This adds some global variables that trigger the relevant
code path. Sorry this wasn't committed with the fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214243 91177308-0d34-0410-b5e6-96231b3b80d8
To avoid unnecessary forward references, the reader doesn't process
initializers of `GlobalValue`s until after the constant pool has been
processed, and then in reverse order. Model this when predicting
use-list order. This gets two more Bitcode tests passing with
`llvm-uselistorder`.
Part of PR5680.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214242 91177308-0d34-0410-b5e6-96231b3b80d8
This moves some tests around to make it clearer what's being tested,
and adds very rudimentary comment syntax to the text input format to
make specifying this kind of test a little bit simpler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214235 91177308-0d34-0410-b5e6-96231b3b80d8
This patch reduces the complexity of the two inner loops in order to speed up
the loading of coverage data for very large functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214228 91177308-0d34-0410-b5e6-96231b3b80d8
MSVC [1] thinks `UseListShuffleVector` needs a copy constructor, but I
don't. Let's see if being explicit about `UseListOrder` is convincing.
[1]: http://lab.llvm.org:8011/builders/lld-x86_64-win7/builds/11664/steps/build_Lld/logs/stdio
Here's the failure:
C:/lld-x86_64_win7/lld-x86_64-win7/llvm.src/include\llvm/IR/UseListOrder.h(92): error C2248: 'llvm::UseListShuffleVector::operator =' : cannot access private member declared in class 'llvm::UseListShuffleVector' (C:\lld-x86_64_win7\lld-x86_64-win7\llvm.src\lib\Bitcode\Writer\ValueEnumerator.cpp) [C:\lld-x86_64_win7\lld-x86_64-win7\llvm.obj\lib\Bitcode\Writer\LLVMBitWriter.vcxproj]
C:/lld-x86_64_win7/lld-x86_64-win7/llvm.src/include\llvm/IR/UseListOrder.h(56) : see declaration of 'llvm::UseListShuffleVector::operator ='
C:/lld-x86_64_win7/lld-x86_64-win7/llvm.src/include\llvm/IR/UseListOrder.h(32) : see declaration of 'llvm::UseListShuffleVector'
This diagnostic occurred in the compiler generated function 'llvm::UseListOrder &llvm::UseListOrder::operator =(const llvm::UseListOrder &)'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214224 91177308-0d34-0410-b5e6-96231b3b80d8
This is more convenient for callers. No functionality change, this will
be used in a next patch to the gold plugin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214218 91177308-0d34-0410-b5e6-96231b3b80d8
Remove the copy constructor added in r214178 to appease MSVC17 since it
shouldn't be called at all. My guess is that explicitly deleting it
will make the compiler happy. To round out the operations I've also
deleted copy assignment and added move assignment. Otherwise no
functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214213 91177308-0d34-0410-b5e6-96231b3b80d8
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).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214211 91177308-0d34-0410-b5e6-96231b3b80d8
This will let users in other libraries know which error occurred. In particular,
it will be possible to check if the parsing failed or if the file is not
bitcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214209 91177308-0d34-0410-b5e6-96231b3b80d8
Per feedback on r214111, we are going to use null to represent unspecified
parameter. If the type array is {null}, it means a function that returns void;
If the type array is {null, null}, it means a variadic function that returns
void. In summary if we have more than one element in the type array and the last
element is null, it is a variadic function.
rdar://17628609
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214189 91177308-0d34-0410-b5e6-96231b3b80d8
