This reverts commit 9cacd131c22b888303cb88e9a3235b2d7b2f19a1.

llvm-svn: 194039

This test compares the output of llvm-cov against a coverage file
generated by gcov.

llvm-svn: 194038

llvm-svn: 194037

It was causing randomly missing origins.

llvm-svn: 194036

Instead of looking up registers by name, we use the generic ID when we can.

Also added code that creates an extra frame when running expressions by pushing the current PC and FP and then hooking up the FP backchain. This code is "#if 0" out for now until we can pair it with unwinder fixes.

llvm-svn: 194035

This will allow for much easier testing when the input files are in a
different folder from the test script.

llvm-svn: 194034

This patch enables llvm-cov to correctly output the run count stored in
the GCDA file. GCOVProfiling currently does not generate this
information, so the GCDA run data had to be hacked on from a GCDA file
generated by gcc. This is corrected by a subsequent patch.

With the run and program data included, both llvm-cov and gcov produced
the same output.

llvm-svn: 194033

llvm-svn: 194032

"Missing call to Super" in the overriding method and
not in the method itself. // rdar://15385981.

llvm-svn: 194031

ErrorOr had quiet a bit of complexity and indirection to be able to hold a user
type with the error.

That feature is not used anymore. This patch removes it, it will live in svn
history if we ever need it again.

If we do need it again, IMHO there is one thing that should be done
differently: Holding extra info in the error is not a property a function also
returning a value or not. The ability to hold extra info should be in the error
type and ErrorOr templated over it so that we don't need the funny looking
ErrorOr<void>.

llvm-svn: 194030

the stack pointer.

llvm-svn: 194029

It was never transporting any value in addition to the error_code.

llvm-svn: 194028

As with the other loop unrolling parameters (the unrolling threshold, partial
unrolling, etc.) runtime unrolling can now also be controlled via the
constructor. This will be necessary for moving non-trivial unrolling late in
the pass manager (after loop vectorization).

No functionality change intended.

llvm-svn: 194027

Revert r194019 to r194021, "Submit the basic port of the rest of ARM constant islands code to Mips."

It broke -Asserts build.

llvm-svn: 194026

ResolveFrameIndex had what appeared to be a very nasty hack for when the
frame-index referred to a callee-saved register. In this case it "adjusted" the
offset so that the address was correct if (and only if) the MachineInstr
immediately followed the respective push.

This "worked" for all forms of GPR & DPR but was only ever used to set the
frame pointer itself, and once this was put in a more sensible location the
entire state-tracking machinery it relied on became redundant. So I stripped
it.

The only wrinkle is that "add r7, sp, #0" might theoretically be slower (need
an actual ALU slot) compared to "mov r7, sp" so I added a micro-optimisation
that also makes emitARMRegUpdate and emitT2RegUpdate also work when NumBytes ==
0.

No test changes since there shouldn't be any functionality change.

llvm-svn: 194025

If an inline assembly operand has multiple constraints (e.g. "Ir" for immediate
or register) and an operand modifier (E.g. "w" for "print register as wN") then
we need to decide behaviour when the modifier doesn't apply to the constraint.

Previousely produced some combination of an assertion failure and a fatal
error. GCC's behaviour appears to be to ignore the modifier and print the
operand in the default way. This patch should implement that.

llvm-svn: 194024

where it was using the wrong register numbering scheme
to express where the rbp could be retrieved from.

llvm-svn: 194023

when compiling with DEBUG.

llvm-svn: 194021

islands. I forgot to add it to svn on that patch. Ooops.

llvm-svn: 194020

Two test cases are added which reflect the next level of functionality:
constants getting moved to water areas that are out of range from the
initial placement at the end of the function and basic blocks being split to
create water when none exists that can be used. There is a bunch of this
code that is not complete and has been marked with IN_PROGRESS. I will
finish cleaning this all up during the next week or two and submit the
rest of the test cases. I have elminated some code for dealing with
inline assembly because to me it unecessarily complicates things and
some of the newer features of llvm like function attributies and builtin
assembler give me better tools to solve the alignment issues created
there. Also, for Mips16 I even have the option of not doing constant
islands in the present of inline assembler if I chose.

llvm-svn: 194019

This change fixes Richard's testcase for r193815.  Now we include non-explicit
submodules into the list of exports.

The test failed previously because:
- recursive_visibility_a1.inner is not imported (only recursive_visibility_a1 is),
- thus the 'inner' submodule is not showing up in any of the import lists,
- and because of this getExportedModules() is not returning the
  correct module set -- it only considers modules that are imported.

The fix is to make Module::getExportedModules() include non-explicit submodules
into the list of exports.

llvm-svn: 194018

llvm-svn: 194017

those produced by clang for the inline asm bswap conversion.

Modified from a patch by Chris Smowton.

llvm-svn: 194016

STL debug mode checks this.

llvm-svn: 194015

This fixes an assertion failure with a different sized address space.

llvm-svn: 194014

When the elements are extracted from a select on vectors
or a vector select, do the select on the extracted scalars
from the input if there is only one use.

llvm-svn: 194013

Fixed a case where on darwin, after recent compiler changes a few months ago, we could not execute dlopen() in an expression, or use "process load".

The issue was some compiler option default values changed. We now override these settings to get the old behavior back.

llvm-svn: 194012

llvm-svn: 194011

Patch reviewed by Shankar Easwaran.

llvm-svn: 194010

Cleaned up ClangUserExpression::Evaluate() to have only one variant that takes a "const EvaluateExpressionOptions& options" instead of taking many arguments.

The "--debug" option is designed to allow you to debug your expression by stopping at the first instruction (it enables --ignore-breakpoints=true and --unwind-on-error=false) and allowing you to step through your JIT code. It needs to be more integrated with the thread plan, so I am checking this in so Jim Ingham can make it happen.

llvm-svn: 194009

llvm-svn: 194007

llvm-svn: 194006

llvm-svn: 194005

The analyzer cannot reason about the internal invariances of the data structure (radar://15194597).

llvm-svn: 194004

llvm-svn: 194003

Similar C code isn't caught as it seems to hit a different code path.
Also, as the check is only done for record pointers, cases involving
an overloaded operator-> are not handled either. Note that the reason
this check is done in the parser instead of Sema is not related to
having enough knowledge about the current state as it is about being
able to fix up the parser's state to be able to recover and traverse the
correct code paths.

llvm-svn: 194002

llvm-svn: 194001

With this patch we produce alias for cases like

template<typename T>
struct foobar {
  foobar() {
  }
};
template struct foobar<void>;

We just have to be careful to produce the same aliases in every TU because
of comdats.

llvm-svn: 194000

llvm-svn: 193997

In order to create an ObjectFile implementation that uses bitcode files, we
need to propagate the bitcode errors to the ObjectFile interface, so we need
to convert it to use the same error handling as ObjectFile: error_code.

llvm-svn: 193996