Fix CMake detection of various cmath functions, and XFAIL the test on platforms that are known to be missing them.

llvm-svn: 174564

Conditionalize constant folding of math intrinsics on the availability of an implementation on the host.  This is a little bit unfortunate, but until someone decides to implement a full libm for APFloat, we don't have a better way to get this functionality.

llvm-svn: 174561

Signficantly generalize our ability to constant fold floating point intrinsics, including ones on half types.

llvm-svn: 174555

llvm-svn: 174553

Thanks to Andrew, David, and Aaron for helping fix this.

llvm-svn: 174552

file was generated.

llvm-svn: 174551

llvm-svn: 174550

units coming in.

llvm-svn: 174548

llvm-svn: 174547

llvm-svn: 174546

The test is a binary placed in test/DebugInfo/Inputs, with a source C
file used for reference/reproducing. The source's first line is a clang
build command for reproducing the binary.

llvm-svn: 174543

account. Atoms use LEA for updating SP in prologs/epilogs, and the
exact LEA opcode depends on the data model.

Also reapplying the test case which was added and then reverted
(because of Atom failures), this time specifying explicitly the CPU in
addition to the triple. The test case now checks all variations (data
mode, cpu Atom vs. Core).

llvm-svn: 174542

Canonicalize line endings to Linux style also when the --strict-whitespace flag is in use. This flag is supposed to affect horizontal whitespaces only.

llvm-svn: 174541

llvm-svn: 174536

Most of PPCCallingConv.td is used only by the 32-bit SVR4 ABI.  Rename
things to clarify this.  Also delete some code that's been commented out
for a long time.

llvm-svn: 174526

Only implemented for R600 so far.  SI is missing implementations of a
few callbacks used by the Indirect Addressing pass and needs code to
handle frame indices.

At the moment R600 only supports array sizes of 16 dwords or less.
Register packing of vector types is currently disabled, which means that a
vec4 is stored in T0_X, T1_X, T2_X, T3_X, rather than T0_XYZW. In order
to correctly pack registers in all cases, we will need to implement an
analysis pass for R600 that determines the correct vector width for each
array.

v2:
  - Add support for i8 zext load from stack.
  - Coding style fixes

v3:
  - Don't reserve registers for indirect addressing when it isn't
    being used.
  - Fix bug caused by LLVM limiting the number of SubRegIndex
    declarations.

v4:
  - Fix 64-bit defines

llvm-svn: 174525

Weakly defined symbols should evaluate to 0 if they're undefined at
link-time. This is impossible to do with the usual address generation
patterns, so we should use a literal pool entry to materlialise the
address.

llvm-svn: 174518

llvm-svn: 174515

These instructions are a late addition to the architecture, and may
yet end up behind an optional attribute, but for now they're available
at all times.

llvm-svn: 174496

This adds hints to the various "prfm" instructions so that they can
affect the instruction cache as well as the data cache.

llvm-svn: 174495

Attribute groups are of the form:

  #0 = attributes { noinline "no-sse" "cpu"="cortex-a8" alignstack=4 }

Target-dependent attributes are represented as strings. Attributes can have
optional values associated with them. E.g., the "cpu" attribute has the value
"cortex-a8".

Target-independent attributes are listed as enums inside the attribute classes.

Multiple attribute groups can be referenced by the same object. In that case,
the attributes are merged together.

llvm-svn: 174493

llvm-svn: 174492

llvm-svn: 174491

llvm-svn: 174490

Use the validateTargetOperandClass() hook to match literal '#0' operands in
InstAlias definitions. Previously this required per-instruction C++ munging of the
operand list, but not is handled as a natural part of the matcher. Much better.

No additional tests are required, as the pre-existing tests for these instructions
exercise the new behaviour as being functionally equivalent to the old.

llvm-svn: 174488

For example, ARM has several instructions with a literal '#0' immediate in the syntax
that's not represented as an actual operand. The asm matcher is expected a token
operand, but the parser will have created an immediate operand. This is currently
handled by dedicated per-instruction C++ munging of the ParsedAsmOperand list, but
will be better handled by this hook.

llvm-svn: 174487

initialization is one of the reasons I consider -werror to be shoddy.

llvm-svn: 174485

to move the stack pointer in prologs/epilogs. I will fix the test and add it
back later.

llvm-svn: 174484

llvm-svn: 174483

llvm-svn: 174482

Fix the 'operator==' and 'hasAttributes' queries to take into account
target-dependent attributes.

llvm-svn: 174481

This is useful when parsing an object that references multiple attribute groups.

N.B. If both builders have alignments specified, then they should match!

llvm-svn: 174480

Failure: undefined symbol 'Lline_table_start0'.
Root-cause: we use a symbol subtraction to calculate at_stmt_list, but
the line table entries are not dumped in the assembly.
Fix: use zero instead of a symbol subtraction for Compile Unit 0.

llvm-svn: 174479

llvm-svn: 174473

llvm-svn: 174467

llvm-svn: 174465

llvm-svn: 174464

llvm-svn: 174463

a setter and fix some comments.

llvm-svn: 174462

If an Apple llvmCore build is done without assertions, and a client uses
the llvmCore headers with assertions enabled, or vice versa, then things will
break because some of the structure sizes in the API are different.  Use the
unifdef tool to make the headers unconditionally match the way the llvmCore
libraries were built.

llvm-svn: 174460