lld has a hashtable with StringRef keys; it needs to iterate over the keys in
*insertion* order. This is currently implemented as std::vector<StringRef> +
DenseMap<StringRef, T>. This will probably need a proper
DenseMapInfo<StringRef> if we don't want to lose memory/performance by
migrating to a different data structure.
llvm-svn: 187868
for StringRef with a StringMap
The bug is that the empty key compares equal to the tombstone key.
Also added an assertion to DenseMap to catch similar bugs in future.
llvm-svn: 187866
This removes a formatting choice that was added at one point, but is
not generally liked by users. Specifically, in builder-type calls, do
(easily) break if the object before the ./-> is either a field or a
parameter-less function call. I.e., don't break after "aa.aa.aa" or
"aa.aa.aa()". In general, these sequences in builder-type calls are
seen as a single entity and thus breaking them up is a bad idea.
llvm-svn: 187865
- Since we only have a few of these, use the cumbersome method of getting the
exception object from 'sys' to retain the current pre-2.6 compatibility.
llvm-svn: 187854
One use needs to copy the alloca into a std::string, and the other use
is before calling CreateProcess, which is very heavyweight anyway.
llvm-svn: 187845
This reverts commit r187788.
The test case is unreliable (as the test may be run in a situation in
which it has no affinity with cpu0). This can be recommitted with a more
reliable test - possibly using CPU_COUNT != 0 instead (I wasn't entirely
sure that a process was guaranteed to have at least one affinity, though
it seems reasonable, or I'd have made the change myself).
llvm-svn: 187841
Previously this check was guarded by MSVC, which doesn't distinguish
between the compiler and the headers/library. This enables clang to
compile more of LLVM on Windows with Microsoft headers.
Remove some unused macros while I'm here: error_t and LTDL stuff.
llvm-svn: 187839
Summary:
This is a second attempt to get this right. After reading the Unicode
Standard I came up with the code that uses definitions of "printable" and
"column width" more suitable for terminal output (i.e. fixed-width fonts and
special treatment of many control characters).
The implementation here can probably be used for Windows and MacOS if someone
can test it properly.
The patch addresses PR14910.
Reviewers: jordan_rose, gribozavr
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D1253
llvm-svn: 187837
Since the VSrc_* register classes contain both VGPRs and SGPRs, copies
that used be emitted by isel like this:
SGPR = COPY VGPR
Will now be emitted like this:
VSrC = COPY VGPR
This patch also adds a pass that tries to identify and fix situations where
a VGPR to SGPR copy may occur. Hopefully, these changes will make it
impossible for the compiler to generate illegal VGPR to SGPR copies.
llvm-svn: 187831
The globals being generated here were given the 'private' linkage type. However,
this caused them to end up in different sections with the wrong prefix. E.g.,
they would be in the __TEXT,__const section with an 'L' prefix instead of an 'l'
(lowercase ell) prefix.
The problem is that the linker will eat a literal label with 'L'. If a weak
symbol is then placed into the __TEXT,__const section near that literal, then it
cannot distinguish between the literal and the weak symbol.
Part of the problems here was introduced because the address sanitizer converted
some C strings into constant initializers with trailing nuls. (Thus putting them
in the __const section with the wrong prefix.) The others were variables that
the address sanitizer created but simply had the wrong linkage type.
llvm-svn: 187827
LLVM's coding standards recommend raw_ostream and MemoryBuffer for
reading and writing text.
This has the side effect of allowing clang to compile more of Support
and TableGen in the Microsoft C++ ABI.
llvm-svn: 187826
Also change some local variable names: "ti" -> "context" and
"_targetInfo" -> "_context".
Differential Revision: http://llvm-reviews.chandlerc.com/D1301
llvm-svn: 187823
Eric Christopher