This patch introduces initial-exec model support for thread-local storage
on 64-bit PowerPC ELF.

The patch includes code to handle external assembly and MC output with the
integrated assembler. It

This patch introduces initial-exec model support for thread-local storage
on 64-bit PowerPC ELF.

The patch includes code to handle external assembly and MC output with the
integrated assembler. It intentionally does not support the "old" JIT.

For the initial-exec TLS model, the ABI requires the following to calculate
the address of external thread-local variable x:

Code sequence Relocation Symbol
ld 9,x@got@tprel(2) R_PPC64_GOT_TPREL16_DS x
add 9,9,x@tls R_PPC64_TLS x

The register 9 is arbitrary here. The linker will replace x@got@tprel
with the offset relative to the thread pointer to the generated GOT
entry for symbol x. It will replace x@tls with the thread-pointer
register (13).

The two test cases verify correct assembly output and relocation output
as just described.

PowerPC-specific selection node variants are added for the two
instructions above: LD_GOT_TPREL and ADD_TLS. These are inserted
when an initial-exec global variable is encountered by
PPCTargetLowering::LowerGlobalTLSAddress(), and later lowered to
machine instructions LDgotTPREL and ADD8TLS. LDgotTPREL is a pseudo
that uses the same LDrs support added for medium code model's LDtocL,
with a different relocation type.

The rest of the processing is straightforward.

llvm-svn: 169281

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Use the new script to sort the includes of every file under lib.

Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module

Use the new script to sort the includes of every file under lib.

Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131

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Implement local-exec TLS on PowerPC.

llvm-svn: 157935

Convert assert(0) to llvm_unreachable

llvm-svn: 149961

Ignore register mask operands when lowering instructions to MC.

This is similar to implicit register operands. MC doesn't understand
register liveness and call clobbers.

llvm-svn: 148437

Fix emission of PPC64 assembler on non-darwin platforms by splitting
VK_PPC_{HA,LO}16 into darwin and gas variants.

Darwin wants {ha,lo}16(symbol) while gnu as wants symbol@{ha,l}.

llvm-svn: 132802

convert the operand bits into bitfields since they are all combinable in
different ways. Add $non_lazy_ptr support, and proper lowering for
global values.

Now all the ppc regression tests pass with

convert the operand bits into bitfields since they are all combinable in
different ways. Add $non_lazy_ptr support, and proper lowering for
global values.

Now all the ppc regression tests pass with the new instruction printer.

llvm-svn: 119106

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add targetoperand flags for jump tables, constant pool and block address
nodes to indicate when ha16/lo16 modifiers should be used. This lets
us pass PowerPC/indirectbr.ll.

The one annoying thing a

add targetoperand flags for jump tables, constant pool and block address
nodes to indicate when ha16/lo16 modifiers should be used. This lets
us pass PowerPC/indirectbr.ll.

The one annoying thing about this patch is that the MCSymbolExpr isn't
expressive enough to represent ha16(label1-label2) which we need on
PowerPC. I have a terrible hack in the meantime, but this will have
to be revisited at some point.

Last major conversion item left is global variable references.

llvm-svn: 119105

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implement support for the MO_DARWIN_STUB TargetOperand flag,
and have isel apply to to call operands as required. This allows
us to get $stub suffixes on label references on ppc/tiger with the
new i

implement support for the MO_DARWIN_STUB TargetOperand flag,
and have isel apply to to call operands as required. This allows
us to get $stub suffixes on label references on ppc/tiger with the
new instprinter, fixing two tests. Only 2 to go.

llvm-svn: 119093

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implement basic support for symbol operand lowering,
and printing support for call operands. Down to 77 failures.

llvm-svn: 119078

switch PPC to a simplified MCInstLowering model.

llvm-svn: 119074

stub out PPCMCInstLowering, add a new option that uses it and the new
instprinter when -enable-ppc-inst-printer is passed to llc.

llvm-svn: 119061