[PowerPC] Support extended sc mnemonic

A plain "sc" without argument is supposed to be treated like "sc 0"
by the assembler.  This patch adds a corresponding alias.

Problem reported by Joerg Sonnenberger.

llvm-svn: 183687

[PowerPC] Support branch mnemonics with implied CR0

The extended branch mnemonics are supposed to use an implied CR0
if there is no explicit condition register specified.  This patch
adds extra variants of the mnemonics to this effect.

Problem reported by Joerg Sonnenberger.

llvm-svn: 183686

[PowerPC] Use multiclass to generate extended branch mnemonics

This patch removes some redundancy by generating the extended branch
mnemonics via a multiclass.

No change in behaviour expected.

llvm-svn: 183685

llvm-svn: 183682

llvm-svn: 183657

ISB should only accepts full system sync, other options are reserved

llvm-svn: 183656

[NVPTX] Remove old CONST_NOT_GEN address space that is not being used anymore and causes constants to be emitted in the global address space

llvm-svn: 183652

the Mips16 port. A few of the psuedos could either take signed
or unsigned arguments and I did not distinguish the case and improperly
rejected some valid cases that the assembler had previously accepted
when they were pure pseudos that expanded as assembly instructions.

llvm-svn: 183633

Changes to ARM unwind opcode assembler:

* Fix multiple .save or .vsave directives.  Besides, the
  order is preserved now.

* For the directives which will generate multiple opcodes,
  such as ".save {r0-r11}", the order of the unwind opcode
  is fixed now, i.e. the registers with less encoding value
  are popped first.

* Fix the $sp offset calculation.  Now, we can use the
  .setfp, .pad, .save, and .vsave directives at any order.

Changes to test cases:

* Add test cases to check the order of multiple opcodes
  for the .save directive.

* Fix the incorrect $sp offset in the test case.  The
  stack pointer offset specified in the test case was
  incorrect.  (Changed test cases: ehabi-mc-section.ll and
  ehabi-mc.ll)

* The opcode to restore $sp are slightly reordered.  The
  behavior are not changed, and the new output is same
  as the output of GNU as.  (Changed test cases:
  eh-directive-pad.s and eh-directive-setfp.s)

llvm-svn: 183627

llvm-svn: 183626

The register classes when emitting loads weren't quite restricting enough, leading to MI verification failure on the result register.

These are new failures that weren't there the first time I tried enabling ARM FastISel for new targets.

llvm-svn: 183624

llvm-svn: 183613

Enforce Table A7-15 (op=1, cmode=0b111) -> UNDEF

llvm-svn: 183612

llvm-svn: 183611

Handle the case when the disassembler table can't tell
the difference between some encodings of QADD and CPS.

Add some necessary safe guards in CPS decoding as well.

llvm-svn: 183610

UNPRED was reported instead of UNDEF

llvm-svn: 183608

llvm-svn: 183601

destination operands of an instruction.

No functionality changes.

llvm-svn: 183596

This is using a hint from AMD APP OpenCL Programming Guide with
empirically tweaked parameters.
I used Unigine Heaven 3.0 to determine best parameters on my system
(i7 2600/Radeon 6950/Kernel 3.9.4) the benchmark :
it went from 38.8 average fps to 39.6, which is ~3% gain.
(Lightmark 2008.2 gain is much more marginal: from 537 to 539)

There is no lit test provided as the parameter were determined
empirically and it it would be nearly impossiblet to find a test
program that check for optimal behavior.

llvm-svn: 183593

llvm-svn: 183592

llvm-svn: 183589

llvm-svn: 183587

On PPC32, [su]div,rem on i64 types are transformed into runtime library
function calls. As a result, they are not allowed in counter-based loops (the
counter-loops verification pass caught this error; this change fixes PR16169).

llvm-svn: 183581

the internals of TargetMachine could change.

No functionality change intended.

llvm-svn: 183572

the internals of TargetMachine could change.

No functionality change intended.

llvm-svn: 183571

llvm-svn: 183570

We weren't computing structure size correctly and we were relying on
the original alloca instruction to compute the offset, which isn't
always reliable.

Reviewed-by: Vincent Lejeune <vljn@ovi.com>
llvm-svn: 183568

the internals of TargetMachine could change.

No functionality change intended.

llvm-svn: 183567

This should simplify the subtarget definitions and make it easier to
add new ones.

Reviewed-by: Vincent Lejeune <vljn@ovi.com>
llvm-svn: 183566

the internals of TargetMachine could change.

No functionality change intended.

llvm-svn: 183565

the internals of TargetMachine could change.

No functionality change intended.

llvm-svn: 183561

Reviewed-by: Vincent Lejeune <vljn@ovi.com>

https://bugs.freedesktop.org/show_bug.cgi?id=64257

llvm-svn: 183560

This is the convention used by the other targets.

Reviewed-by: Vincent Lejeune <vljn@ovi.com>
llvm-svn: 183559

Reviewed-by: Vincent Lejeune <vljn@ovi.com>
llvm-svn: 183558

My recent ARM FastISel patch exposed this bug:
  http://llvm.org/bugs/show_bug.cgi?id=16178
The root cause is that it can't select integer sext/zext pre-ARMv6 and
asserts out.

The current integer sext/zext code doesn't handle other cases gracefully
either, so this patch makes it handle all sext and zext from i1/i8/i16
to i8/i16/i32, with and without ARMv6, both in Thumb and ARM mode. This
should fix the bug as well as make FastISel faster because it bails to
SelectionDAG less often. See fastisel-ext.patch for this.

fastisel-ext-tests.patch changes current tests to always use reg-imm AND
for 8-bit zext instead of UXTB. This simplifies code since it is
supported on ARMv4t and later, and at least on A15 both should perform
exactly the same (both have exec 1 uop 1, type I).

2013-05-31-char-shift-crash.ll is a bitcode version of the above bug
16178 repro.

fast-isel-ext.ll tests all sext/zext combinations that ARM FastISel
should now handle.

Note that my ARM FastISel enabling patch was reverted due to a separate
failure when dealing with MCJIT, I'll fix this second failure and then
turn FastISel on again for non-iOS ARM targets.

I've tested "make check-all" on my x86 box, and "lnt test-suite" on A15
hardware.

llvm-svn: 183551

Found be libstdc's debug mode.

llvm-svn: 183549

llvm-svn: 183541

I am able to compile/assemble/link/run /bin/echo from FreeBSD.

llvm-svn: 183537

As a bonus this reduces the loop from O(n^2) to O(n).

llvm-svn: 183532

llvm-svn: 183528