The reason we need to search by name rather than by Triple::ArchType
is to handle subarchitecture correclty. There is no different ArchType
for the x86_64h architecture (it identifies itself as x86_64), or for
the various ARM subarches. The only way to get to the subarch slice
in an universal binary is to search by name.
This issue led to hard to debug and transient symbolication failures
in Asan tests (it mostly works, because the files are very similar).
This also affects the Profiling infrastucture as it is the other user
of that API.
Reviewers: samsonov, bogner
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10604
llvm-svn: 240339
As specified in the SysV AVX512 ABI drafts. It follows the same scheme
as AVX2:
Arguments of type __m512 are split into eight eightbyte chunks.
The least significant one belongs to class SSE and all the others
to class SSEUP.
This also means we change the OpenMP SIMD default alignment on AVX512.
Based on r240337.
Differential Revision: http://reviews.llvm.org/D9894
llvm-svn: 240338
Such conflicts are an accident waiting to happen, and this feature conflicts
with the desire to include existing headers into multiple modules and merge the
results. (In an ideal world, it should not be possible to export internal
linkage symbols from a module, but sadly the glibc and libstdc++ headers
provide 'static inline' functions in a few cases.)
llvm-svn: 240335
Summary: This will be used by the R600 backend.
Reviewers: chandlerc, rafael
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10389
llvm-svn: 240329
The _Int instructions are special, in that they operate on the full
VR128 instead of FR32. The load folding then looks at MOVSS, at the
user, and bails out when it sees a size mismatch.
What we really know is that the rm_Int instructions don't load the
higher lanes, so folding is fine.
This happens for the straightforward intrinsic code, e.g.:
_mm_add_ss(a, _mm_load_ss(p));
Fixes PR23349.
Differential Revision: http://reviews.llvm.org/D10554
llvm-svn: 240326
This commit adds a function that tokenizes the string containing
the machine instruction. This commit also adds a struct called
'MIToken' which is used to represent the lexer's tokens.
Reviewers: Sean Silva
Differential Revision: http://reviews.llvm.org/D10521
llvm-svn: 240323
ISL with small integer optimization requires C99 to compile. gcc < 5.0
still uses C89 as default, so we need to enable the options to compile
in C99 mode.
This patch is preparing the actual activation of small integer
optimization.
Differential version: http://reviews.llvm.org/D10610
Reviewers: grosser
llvm-svn: 240322
This avoids creating an unnecessary undefined reference on targets such as
NVPTX that require such references to be declared in asm output.
llvm-svn: 240321
This is a reapplication of r239440 which was reverted in r239441.
There are no changes to this patch from then, but this had instead exposed
a bug in .thumb_set which was fixed in r240318. Having fixed that bug, it
is now safe to re-apply this code.
Original commit message below:
It wasn't possible to have a variable Symbol with offset or 'isCommon' so
this just enables better packing of the MCSymbol class.
Reviewed by Rafael Espindola.
llvm-svn: 240320
Before this change, you got to cast a symbol to DefinedRegular and then
call isCOMDAT() to determine if a given symbol is a COMDAT symbol.
Now you can just use isa<DefinedCOMDAT>().
As to the class definition of DefinedCOMDAT, I could remove duplicate
code from DefinedRegular and DefinedCOMDAT by introducing another base
class for them, but I chose to not do that to keep the class hierarchy
shallow. This amount of code duplication doesn't worth to define a new
class.
llvm-svn: 240319
According to the documentation, .thumb_set is 'the equivalent of a .set directive'.
We didn't have equivalent behaviour in terms of all the errors we could throw, for
example, when a symbol is redefined.
This change refactors parseAssignment so that it can be used by .set and .thumb_set
and implements tests for .thumb_set for all the errors thrown by that method.
Reviewed by Rafael Espíndola.
llvm-svn: 240318
ISL's ./configure examines the system for the stdint.h to include and
creates a header file that points to it. On C99-compatible system
#include <stdint.h>
is always valid such there no need for system introspection. This should
unbreak the build bots.
llvm-svn: 240315
The asan/not_asan and ubsan/not_ubsan features weren't being set
correctly when LLVM_USE_SANITIZER is set to 'Address;Undefined'. Fix
this by doing substring instead of exact matching. Also simplify the
msan check for consistency.
llvm-svn: 240314
D8982 ( checked in at http://reviews.llvm.org/rL239001 ) added command-line
options to allow reciprocal estimate instructions to be used in place of
divisions and square roots.
This patch changes the default settings for x86 targets to allow that recip
codegen (except for scalar division because that breaks too much code) when
using -ffast-math or its equivalent.
This matches GCC behavior for this kind of codegen.
Differential Revision: http://reviews.llvm.org/D10396
llvm-svn: 240310
I had some unnecessary `typename`s left in after addressing review.
This compiled successfully with clang++ but MSVC reported an error. Fix
the build error by removing the redundant `typename`s.
llvm-svn: 240307
The 'make dist' archive is not dependent on ./configure output and
contains a GIT_HEAD_ID file that identifies the version of ISL used.
None of the files added or removed are used part of Polly's build
process (except of GIT_HEAD_ID since the previous revision r240301). No
functional change intended.
llvm-svn: 240306
Having different code paths for streamed and regular bitcode reading was a
source of bugs in the past and this defines them away.
It has a small but noticeable impact on performance. I timed running
"opt -disable-output -disable-verify" on a ltoed clang. It goes from
14.752845231 seconds time elapsed ( +- 0.16% )
to
15.012463721 seconds time elapsed ( +- 0.11% )
Extracted from a patch by Karl Schimpf.
llvm-svn: 240305
Summary:
The parser is exercised by llvm-objdump using -print-fault-maps. As is
probably obvious, the code itself was "heavily inspired" by
http://reviews.llvm.org/D10434.
Reviewers: reames, atrick, JosephTremoulet
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10491
llvm-svn: 240304
Now that pr23900 is fixed, we can bring it back with no changes.
Original message:
Make all temporary symbols unnamed.
What this does is make all symbols that would otherwise start with a .L
(or L on MachO) unnamed.
Some of these symbols still show up in the symbol table, but we can just
make them unnamed.
In order to make sure we produce identical results when going thought assembly,
all .L (not just the compiler produced ones), are now unnamed.
Running llc on llvm-as.opt.bc, the peak memory usage goes from 208.24MB to
205.57MB.
llvm-svn: 240302
Currently the Polly repository contains the ISL sources with bogus
isl_config.h and gitversion.h. This is problematic. In this state a
macro
#define __attribute__(x)
becomes active in the source, leading to various problems e.g. when
included before system header files. This patch will instead generate
the two files specific to the host system at configure-time.
For CMake, we replicate the tests that ISL's configure performs using
try_compile(). In autotools build, we just invoke ISL's configure to
generate the two files. This consequently required regenerating
autoconf/configure.
'make dist' distributions of ISL contain a file GIT_HEAD_ID which
contains the version the distribution is derived from. The repository
files themselves do not contain such a hint. In a later commit we will
replace the isl directory by the contents of such a .tar.gz. It does
not contain the files imdrover.c iprime.c pi.c and rsamath.c currently
compiled into Polly, but not used and therefore are removed by this
patch.
In the long term we plan to generate a dedicated library for ISL instead
of adding its files to Polly.
This also does not yet include the switch to small-integer optimized ISL
nor enabling C99 mode required for the former. Those will come as well
in separate patches.
Differential version: http://reviews.llvm.org/D10603
Reviewers: grosser
llvm-svn: 240301
Before this we were producing a TargetExternalSymbol from a MCSymbol.
That meant extracting the symbol name and fetching the symbol again
down the pipeline.
This patch adds a DAG.getMCSymbol that lets the MCSymbol pass unchanged on the
DAG.
Doing so removes the need for MO_NOPREFIX and fixes the root cause of pr23900,
allowing r240130 to be committed again.
llvm-svn: 240300
Add some if/then to avoid calling a function to get dynamic/synthetic types if we know we aren't going to need to call it.
Avoid calling a function that returns a shared pointer twice: once for testing it and once for assigning it (even though that shared pointer is cached inside the value object), it just makes the code a bit clearer.
llvm-svn: 240299
This commit implements initial machine instruction serialization. It
serializes machine instruction names. The instructions are represented
using a YAML sequence of string literals and are a part of machine
basic block YAML mapping.
This commit introduces a class called 'MIParser' which will be used to
parse the machine instructions and operands.
Reviewers: Duncan P. N. Exon Smith
Differential Revision: http://reviews.llvm.org/D10481
llvm-svn: 240295
This fix allows the machine hierarchy to be expanded in case it needs to handle
more threads. It adds a resize function to accomplish this.
Differential Revision: http://reviews.llvm.org/D9900
llvm-svn: 240292
Summary: The code responsible for shl folding in the DAGCombiner was assuming incorrectly that all constants are less than 64 bits. This patch simply changes the way values are compared.
Test Plan: A regression test included.
Reviewers: andreadb
Reviewed By: andreadb
Subscribers: andreadb, test, llvm-commits
Differential Revision: http://reviews.llvm.org/D10602
llvm-svn: 240291
I tried to compile with Visual Studio using CMake and found these two sections of code
causing problems for Visual Studio. The first one removes the use of variable length
arrays by instead using KMP_ALLOCA(). The second part eliminates a redundant cpuid
assembly call by using the already existing __kmp_x86_cpuid() call instead.
llvm-svn: 240290
Summary:
This is an implementation of RuntimeDyld::SymbolResolver that simply
rejects all resolution requests; useful for clients that do not have any
cross-object symbol references.
Reviewers: lhames
Reviewed By: lhames
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10455
llvm-svn: 240288
Joseph Tremoulet