This gets rid of some unnecessary SmallStrings in
X86TargetMachine::getSubtargetImpl.
No functionality change is intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270270 91177308-0d34-0410-b5e6-96231b3b80d8
In addition to clarifying the warning message this contains a minor functional
change in that it now warns if the *immediate* parent directory in which the
missing PCM is expected to be isn't found.
This patch also includes a more comprehensive testcase.
rdar://problem/25860711
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270269 91177308-0d34-0410-b5e6-96231b3b80d8
When it has a DataLayout, DecomposeGEPExpression() should return the same object
as GetUnderlyingObject(). Per the FIXME, it currently always has a DL, so the
runtime check is redundant and can become an assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270268 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Uses ModulePass instead of FunctionPass for EfficiencySanitizerPass to
better support global variable creation for a forthcoming struct field
counter tool.
Patch by Qin Zhao.
Reviewers: aizatsky
Subscribers: llvm-commits, eugenis, vitalybuka, bruening, kcc
Differential Revision: http://reviews.llvm.org/D20458
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270263 91177308-0d34-0410-b5e6-96231b3b80d8
DBI stream contains a stream number of the symbol record stream.
Symbol record streams is an array of length-type-value members.
Each member represents one symbol.
Publics stream contains offsets to the symbol record stream.
This patch is to print out all symbols that are referenced by
the publics stream.
Note that even with this patch, llvm-pdbdump cannot dump all the
information in a publics stream since it contains more information
than symbol names. I'll improve it in followup patches.
Differential Revision: http://reviews.llvm.org/D20480
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270262 91177308-0d34-0410-b5e6-96231b3b80d8
Depending on the compiler used to build LLVM, llvm_unreachable can either
expand to a call to abort(), or to a __builtin_unreachable. The latter
does not have a predictable behavior at runtime.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270260 91177308-0d34-0410-b5e6-96231b3b80d8
Fix renameDisconnectedComponents() creating vreg uses that can be
reached from function begin withouthaving a definition (or explicit
live-in). Fix this by inserting IMPLICIT_DEF instruction before
control-flow joins as necessary.
Removes an assert from MachineScheduler because we may now get
additional IMPLICIT_DEF when preparing the scheduling policy.
This fixes the underlying problem of http://llvm.org/PR27705
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270259 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
As this optimization converts two loads into one load with two shift instructions,
it could potentially hurt performance if a loop is arithmetic operation intensive.
Reviewers: t.p.northover, mcrosier, jmolloy
Subscribers: evandro, jmolloy, aemerson, rengolin, mcrosier, llvm-commits
Differential Revision: http://reviews.llvm.org/D20172
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270251 91177308-0d34-0410-b5e6-96231b3b80d8
The Fast mode takes the first mapping, the greedy mode loops over all
the possible mapping for an instruction and choose the cheaper one.
Test case will come with target specific code, since we currently do not
have instructions that have several mappings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270249 91177308-0d34-0410-b5e6-96231b3b80d8
The uuid_command was duplicating the load_command.cmdsize field. This removes the duplicate from the YAML mapping and from the test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270248 91177308-0d34-0410-b5e6-96231b3b80d8
We performed a number of memory allocations each time getTTI was called,
remove them by using SmallString.
No functionality change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270246 91177308-0d34-0410-b5e6-96231b3b80d8
computeMapping.
Computing the cost of a mapping takes some time.
Since in Fast mode, the cost is irrelevant, just spare some cycles by not
computing it.
In Greedy mode, we need to choose the best cost, that means that when
the local cost gets more expensive than the best cost, we can stop
computing the repairing and cost for the current mapping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270245 91177308-0d34-0410-b5e6-96231b3b80d8
more precise cost in Greedy mode.
In Fast mode the cost is irrelevant so do not bother requiring that
those passes get scheduled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270244 91177308-0d34-0410-b5e6-96231b3b80d8
This adds support for handling unknown load commands, and a bogus_load_command tests.
Unknown or unsupported load commands can be specified in YAML by their hex value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270239 91177308-0d34-0410-b5e6-96231b3b80d8
- Do not store Twine objects.
- Remove report_fatal_error, since llvm_unreachable does terminate the
program in release mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270233 91177308-0d34-0410-b5e6-96231b3b80d8
The previous choice of the insertion points for repairing was
straightfoward but may introduce some basic block or edge splitting. In
some situation this is something we can avoid.
For instance, when repairing a phi argument, instead of placing the
repairing on the related incoming edge, we may move it to the previous
block, before the terminators. This is only possible when the argument
is not defined by one of the terminator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270232 91177308-0d34-0410-b5e6-96231b3b80d8
This patch is a first step towards a more extendible method of matching combined target shuffle masks.
Initially this just pulls out the existing basic mask matches and adds support for some 256/512 bit equivalents. Future patterns will require a number of features to be added but I wanted to keep this patch simple.
I hope we can avoid duplication between shuffle lowering and combining and share more complex pattern match functions in future commits.
Differential Revision: http://reviews.llvm.org/D19198
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This refactors the logic in X86 to avoid code duplication. It also
splits it in two steps: it first decides if a symbol is local to the DSO
and then uses that information to decide how to access it.
The first part is implemented by shouldAssumeDSOLocal. It is not in any
way specific to X86. In a followup patch I intend to move it to
somewhere common and reused it in other backends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270209 91177308-0d34-0410-b5e6-96231b3b80d8
We now handle them just like non hidden ones. This was already the case
on x86 (r207518) and arm (r207517).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270205 91177308-0d34-0410-b5e6-96231b3b80d8
If an inline function is observed but unused in a translation unit, dummy
coverage mapping data with zero hash is stored for this function.
If such a coverage mapping section came earlier than real one, the latter
was ignored. As a result, llvm-cov was unable to show coverage information
for those functions.
Differential Revision: http://reviews.llvm.org/D20286
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Note: This is specifically to allow GCC's test pr44707 to pass.
Trivial change, not put for differential revision. Test included.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270192 91177308-0d34-0410-b5e6-96231b3b80d8
