This simplifies type unit and type unit reference creation as well as
setting the stage for inter-type hashing across type unit boundaries.
llvm-svn: 197539
This has no functionality change as clang adds explicit alignment info for
byval arguments. The only difference is that now the clang produced
DataLayout string for AArch64 is identical to the LLVM produced one.
llvm-svn: 197538
The instruction definitions in the PPC backend have a number of variants
defined for the same instruction to represent differences between 64-bit and
32-bit semantics. In order to generate a disassembler for the PPC backend, we
need to mark all but one of these as CodeGen only.
No functionality change intended; this is prep work for PPC disassembly
support.
llvm-svn: 197535
The convention used to specify the PowerPC ISA is that bits are numbered in
reverse order (0 is the index of the high bit). To support this "little endian"
encoding convention, CodeEmitterGen will reverse the bit numberings prior to
generating the encoding tables. In order to generate a disassembler,
FixedLenDecoderEmitter needs to do the same.
This moves the bit reversal logic out of CodeEmitterGen and into CodeGenTarget
(where it can be used by both CodeEmitterGen and FixedLenDecoderEmitter). This
is prep work for disassembly support in the PPC backend (which is the only
in-tree user of this little-endian encoding support).
llvm-svn: 197532
Without this, assembling clang's disassembly would produce an object
file with the IMAGE_SCN_CNT_INITIALIZED_DATA section characteristic
rather than the uninitialized one. link.exe would warn when merging
comdats with different flags.
llvm-svn: 197529
This is in preparation for landing an implementation of unw_getcontext
on a system where it's mangled 'unw_getcontext', not '_unw_getcontext'.
llvm-svn: 197523
Unlike Itanium's VTTs, the 'most derived' boolean or bitfield is the
last parameter for non-variadic constructors, rather than the second.
For variadic constructors, the 'most derived' parameter comes after the
'this' parameter. This affects constructor calls and constructor decls
in a variety of places.
Reviewers: timurrrr
Differential Revision: http://llvm-reviews.chandlerc.com/D2405
llvm-svn: 197518
This effectively backs out r197465 but leaves some of the general
fixes in place. Not all targets are ready to handle this feature. To
enable it, some infrastructure work is needed to better handle
register class constraints.
llvm-svn: 197514
It conflicted with the verbosity flag we had in common flags. We don't need an
LSan-specific flag anyway.
Also, shift some logging levels and remove some unnecessary code.
llvm-svn: 197512
Avoid the gratuitous repurposing of C++ keyword 'private' by using a keyword
alias.
Also attempt to document the OpenCL keywords based on scraps of information
found online.
The purpose of this commit is to reduce impact on the C++ parser.
llvm-svn: 197511
Introduce a flag to either always or never print matched suppressions.
Previously, matched suppressions were printed unconditionally if there were
unsuppressed leaks. Also, verbosity=1 no longer has the semantics of "always
print suppressions and summary".
llvm-svn: 197510
We would previously emit redundant diagnostics for the following code:
struct S {
virtual ~S() = delete;
void operator delete(void*, int);
void operator delete(void*, double);
} s;
First we would check on ~S() and error about the ambigous delete functions,
and then we would error about using the deleted destructor.
If the destructor is deleted, there's no need to check it.
Also, move the check from Sema::ActOnFields to CheckCompleteCXXClass. These
are run at almost the same time, called from ActOnFinishCXXMemberSpecification.
However, CHeckCompleteCXXClass may mark a defaulted destructor as deleted, and
if that's the case we don't want to check it.
Differential Revision: http://llvm-reviews.chandlerc.com/D2421
llvm-svn: 197509
This reapplies r197438 and fixes the link-time circular dependency between
IR and Support. The fix consists in moving the diagnostic support into IR.
The patch adds a new LLVMContext::diagnose that can be used to communicate to
the front-end, if any, that something of interest happened.
The diagnostics are supported by a new abstraction, the DiagnosticInfo class.
The base class contains the following information:
- The kind of the report: What this is about.
- The severity of the report: How bad this is.
This patch also adds 2 classes:
- DiagnosticInfoInlineAsm: For inline asm reporting. Basically, this diagnostic
will be used to switch to the new diagnostic API for LLVMContext::emitError.
- DiagnosticStackSize: For stack size reporting. Comes as a replacement of the
hard coded warning in PEI.
This patch also features dynamic diagnostic identifiers. In other words plugins
can use this infrastructure for their own diagnostics (for more details, see
getNextAvailablePluginDiagnosticKind).
This patch introduces a new DiagnosticHandlerTy and a new DiagnosticContext in
the LLVMContext that should be set by the front-end to be able to map these
diagnostics in its own system.
http://llvm-reviews.chandlerc.com/D2376
<rdar://problem/15515174>
llvm-svn: 197508
This reverts commit r197481, recommiting r197469 with an extra fix.
The vastart_save_xmm_regs pseudo-instruction expands to a test and a
branch, so it modifies EFLAGS. Mark it so, or else the scheduler might
place it in the middle of another test+branch.
This fixes a bug exposed by r192750, which changed the initial scheduler
to source-order as part of enabling the MI Scheduler for X86.
This re-commit changes the VASTART_SAVE_XMM_REGS custom inserter not to
try to save %flags, and adds a test that catches the bad behavior of
r197469.
<rdar://problem/15627766>
llvm-svn: 197503
1) Introduce TryConsumeToken() to handle the common test-and-consume pattern.
This brings about readability improvements in the parser and optimizes to avoid
redundant checks in the common case.
2) Eliminate the ConsumeCodeCompletionTok special case from ConsumeToken(). This
was used by only one caller which has been switched over to the more
appropriate ConsumeCodeCompletionToken() function.
llvm-svn: 197497
Now that we emit diagnostics for keyword-as-identifier hacks (-Wkeyword-compat)
we can go ahead and simplify some of the old revertible keyword support.
This commit adds a TryIdentKeywordUpgrade() function to mirror the recently
added TryKeywordIdentFallback() and uses it to replace the hard-coded list of
REVERTIBLE_TYPE_TRAITs.
llvm-svn: 197496
Formatting this:
void f() { // 1 space initial indent.
int i;
#define A \
int i; \
int j;
int k; // Format this line.
}
void f() {
#define A 1 // Format this line.
}
Before:
void f() { // 1 space initial indent.
int i;
#define A \
int i; \
int j;
int k; // Format this line.
}
void f() {
#define A 1 // Format this line.
}
After:
void f() { // 1 space initial indent.
int i;
#define A \
int i; \
int j;
int k; // Format this line.
}
void f() {
#define A 1 // Format this line.
}
llvm-svn: 197494
http://llvm.org/bugs/show_bug.cgi?id=18045
Short issue description:
For X86 machines with sse < sse4.1 we got failures for some
particular load/store vector sequences:
$ clang-trunk -m32 -O2 test-case.c
fatal error: error in backend: Cannot select: 0x4200920: v4i32,ch = load 0x41d6ab0, 0x4205850,
0x41dcb10<LD16[getelementptr inbounds ([4 x i32]* @e, i32 0, i32 0)](align=4)> [ORD=82]
[ID=58]
0x4205850: i32 = X86ISD::Wrapper 0x41d5490 [ORD=26] [ID=43]
0x41d5490: i32 = TargetGlobalAddress<[4 x i32]* @e> 0 [ORD=26] [ID=23]
0x41dcb10: i32 = undef [ID=2]
The reason is that EltsFromConsecutiveLoads could emit such load instruction
both before and after legalize stage. Though this instruction is not legal for
machines with SSSE3 and lower.
The fix: In EltsFromConsecutiveLoads, if we have passed legalize stage, we
check whether nodes it emits are legal.
P.S.: If you get failure in time from 12:00 and till 22:00 (UTC-8),
perhaps I'll slow with response, so you better reject this commit. Thanks!
llvm-svn: 197492
Jason Molenda