Summary:
This change allows yaml input to control the order of implicitly added sections
(`.symtab`, `.strtab`, `.shstrtab`). The order is controlled by adding a
placeholder section of the given name to the Sections field.
This change is to support changes in D39582, where it is desirable to control
the location of the `.dynsym` section.
This reapplied version fixes:
1. use of a function call within an assert
2. failing lld test which has an unnamed section
3. incorrect section count when given an unnamed section
Additionally, one more test to cover the unnamed section failure.
Reviewers: compnerd, jakehehrlich
Reviewed By: jakehehrlich
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39749
llvm-svn: 317789
If a parallel region is cancelled, execution resumes at the end
of the structured block. That is why this test cannot use the
"normal" macros that print right after inserting the label.
Instead it previously printed the addresses before the pragma
and swapped the checks compared to the other tests.
However, this does not work because FileChecks '*' is greedy
so that RETURN_ADDRESS always matched the second address. This
makes the test fail when an "overflow" occurrs and the first
address matches the value of codeptr_ra.
I discovered this on my MacBook but I'm unable to reproduce the
failure with the current version. Nevertheless we should fix this
problem to avoid that this test fails later after an unrelated change.
Differential Revision: https://reviews.llvm.org/D39708
llvm-svn: 317787
Return addresses are determined based on the address of a label
that is inserted directly after a pragma / API call. In some cases
the tests can assume a known number of instructions between the
addresses. However, the instructions and their encoded lengths
depend on the target that the test is compiled on.
Firstly, this patch refactors the macro print_current_address() to
allow such target dependent modifications and adds information for
the observed instructions on POWER. Secondly, it adapts the related
macro print_fuzzy_address() to reuse much of "hacky" code and fixes
the used formatting strings in the printf() call. Finally, it also
adds documentation about how these macros are intended to work.
Differential Revision: https://reviews.llvm.org/D39699
llvm-svn: 317786
Summary:
Make clangd handle "textDocument/rename" request. The rename
functionality comes from the "local-rename" sub-tool of clang-refactor.
Currently clangd only supports local rename (only symbol occurrences in
the main file will be renamed).
Reviewers: sammccall, ilya-biryukov
Reviewed By: sammccall
Subscribers: cfe-commits, ioeric, arphaman, mgorny
Differential Revision: https://reviews.llvm.org/D39676
llvm-svn: 317780
Summary:
These functions used to return bool to signify whether they were able to
retrieve the data. This is redundant because the ArchSpec and ByteOrder
already have their own "invalid" states, *and* because both of the
current implementations (linux, netbsd) can always provide a valid
result.
This allows us to simplify bits of the code handling these values.
Reviewers: eugene, krytarowski
Subscribers: javed.absar, lldb-commits
Differential Revision: https://reviews.llvm.org/D39733
llvm-svn: 317779
Summary:
This is an alternative to JSONCompilationDatabase for simple projects that
don't use a build system such as CMake.
(You can also drop one in ~, to make your tools use e.g. C++11 by default)
There's no facility for varying flags per-source-file or per-machine.
Possibly this could be accommodated backwards-compatibly using cpp, but even if
not the simplicity seems worthwhile for the cases that are addressed.
Tested with clangd, works great! (requires clangd restart)
Reviewers: klimek
Subscribers: ilya-biryukov, cfe-commits
Differential Revision: https://reviews.llvm.org/D39799
llvm-svn: 317777
No existing processor has both so it doesn't really matter what we do here. But we were previously just relying on pattern order which gave FMA4 priority.
llvm-svn: 317775
Summary:
This will let ORC JIT clients plug in custom logic for the mmap, munmap and
mprotect paths.
Reviewers: loladiro, dblaikie
Subscribers: mcrosier, llvm-commits
Differential Revision: https://reviews.llvm.org/D39300
llvm-svn: 317770
We must patch all existing incoming values of Phi node,
otherwise it is possible that we can see poison
where program does not expect to see it.
This is the similar what GVN does.
The added test test/Transforms/GVN/PRE/pre-jt-add.ll shows an
example of wrong optimization done by jump threading due to
GVN PRE did not patch existing incoming value.
Reviewers: mkazantsev, wmi, dberlin, davide
Reviewed By: dberlin
Subscribers: efriedma, llvm-commits
Differential Revision: https://reviews.llvm.org/D39637
llvm-svn: 317768
I think we need to use different builtins for the FMA4 instructions since those instructions zero the upper bits and FMA3 instructions pass the bits through.
So this moves the existing builtins to be the FMA3 versions. New versions will be added for FMA4.
llvm-svn: 317766
I think we need to use different builtins for the FMA4 instructions since those instructions zero the upper bits and FMA3 instructions pass the bits through.
So this moves the existing builtins to be the FMA3 versions. New versions will be added for FMA4.
llvm-svn: 317765
We've worked around bugs in the frontend by ignoring the count from
wrapped segments when a line has at least one region entry segment.
Those frontend bugs are now fixed, so it's time to regenerate the
checked-in covmapping files and remove the workaround.
llvm-svn: 317761
There are some limitations with emitting regions in macro expansions
because we don't gather file IDs within the expansions. Fix the check
that prevents us from emitting deferred regions in expansions to make an
exception for headers, which is something we can handle.
rdar://35373009
llvm-svn: 317760
The area immediately after a terminated region in the function top-level
should have the same count as the label it precedes.
This solves another problem with wrapped segments. Consider:
1| a:
2| return 0;
3| b:
4| return 1;
Without a gap area starting after the first return, the wrapped segment
from line 2 would make it look like line 3 is executed, when it's not.
rdar://35373009
llvm-svn: 317759
The area immediately after the closing right-paren of an if condition
should have a count equal to the 'then' block's count. Use a gap region
to set this count, so that region highlighting for the 'then' block
remains precise.
This solves a problem we have with wrapped segments. Consider:
1| if (false)
2| foo();
Without a gap area starting after the condition, the wrapped segment
from line 1 would make it look like line 2 is executed, when it's not.
rdar://35373009
llvm-svn: 317758
Previously ubsan_standalone used the GetEnv function to read the
environment variables UBSAN_OPTIONS and UBSAN_SYMBOLIZER_PATH. The
problem with GetEnv is that it does not respect changes to the
environment variables made using the libc setenv function, which
prevents clients from setting environment variables to configure
ubsan before loading ubsan-instrumented libraries.
The reason why we have GetEnv is that some runtimes need to read
environment variables while they initialize using .preinit_array,
and getenv does not work while .preinit_array functions are being
called. However, it is unnecessary for ubsan_standalone to initialize
that early. So this change switches ubsan_standalone to using getenv
and removes the .preinit_array entry. The static version of the runtime
still ends up being initialized using a C++ constructor that exists
to support the shared runtime.
Differential Revision: https://reviews.llvm.org/D39827
llvm-svn: 317757
r317453 added new ISD nodes without rounding modes that were added to an existing if/else chain. But all the previous nodes handled there included a rounding mode. The final code after this if/else chain expected an extra operand that isn't present for the new nodes.
llvm-svn: 317748
Adds the blacklist behaviour to llvm-cfi-verify. Now will calculate which lines caused expected failures in the blacklist and reports the number of affected indirect CF instructions for each blacklist entry.
Also moved DWARF checking after instruction analysis to improve performance significantly - unrolling the inlining stack is expensive.
Reviewers: vlad.tsyrklevich
Subscribers: aprantl, pcc, kcc, llvm-commits
Differential Revision: https://reviews.llvm.org/D39750
llvm-svn: 317743
InMemoryBuffer and OnDiskBuffer classes have both factory methods and
public constructors, and that looks a bit odd. This patch makes factory
methods non-member function to fix it.
Differential Revision: https://reviews.llvm.org/D39693
llvm-svn: 317739
Simon Pilgrim