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21868 Commits

Author SHA1 Message Date
Jim Grosbach
e5f31ad55e Nuke a few dead remnants of the CBE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156241 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-05 17:45:12 +00:00
Benjamin Kramer
aaf723dd2b Add a new target hook "predictableSelectIsExpensive". 
This will be used to determine whether it's profitable to turn a select into a
branch when the branch is likely to be predicted.

Currently enabled for everything but Atom on X86 and Cortex-A9 devices on ARM.

I'm not entirely happy with the name of this flag, suggestions welcome ;)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156233 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-05 12:49:14 +00:00
Benjamin Kramer
af87831519 NVPTX: Initialize the UseF32FTZ flag. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156232 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-05 11:22:02 +00:00
Eric Christopher
f2eed387d4 Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156226 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-05 01:16:06 +00:00
David Blaikie
03ba93e194 Fix warnings in release build. 
This fixes a couple of Clang warnings in release builds of LLVM:

* Missing return in ISelLowering
* Unused variable in NVPTXutil.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156216 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 22:34:16 +00:00
Kevin Enderby
3610a15c35 Tweak to the fix in r156212, as with the change in removing the shift the 
SignExtend32<22>(Val<<1) also needs to change to SignExtend32<21>(Val) .


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156213 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 22:09:52 +00:00
Kevin Enderby
ce734d5ffe Fix a bug in the ARM disassembler for wide branch conditional instructions 
where the symbolic operand's displacement was incorrectly shifted left by 1.
rdar://11387046


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156212 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 22:02:27 +00:00
Chandler Carruth
917644d0c3 Fix a Clang warning in the new NVPTX backend: 
In file included from ../lib/Target/NVPTX/VectorElementize.cpp:53:
../lib/Target/NVPTX/NVPTX.h:44:3: warning: default label in switch which covers all enumeration values [-Wcovered-switch-default]
  default: assert(0 && "Unknown condition code");
  ^
1 warning generated.

The prevailing pattern in LLVM is to not use a default label, and instead to
use llvm_unreachable to denote that the switch in fact covers all return paths
from the function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156209 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 21:35:49 +00:00
Justin Holewinski
49683f3c96 This patch adds a new NVPTX back-end to LLVM which supports code generation for NVIDIA PTX 3.0. This back-end will (eventually) replace the current PTX back-end, while maintaining compatibility with it. 
The new target machines are:

nvptx (old ptx32) => 32-bit PTX
nvptx64 (old ptx64) => 64-bit PTX

The sources are based on the internal NVIDIA NVPTX back-end, and
contain more functionality than the current PTX back-end currently
provides.

NV_CONTRIB

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156196 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 20:18:50 +00:00
Sebastian Pop
2c7e5c714c Added missing CMN case in Thumb2SizeReduction pass so that LLVM emits 16-bits encoding of CMN instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156195 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 19:53:56 +00:00
Preston Gurd
3d142e58ef Adds Intel Atom scheduling latencies to X86InstrSystem.td. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156194 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 19:26:37 +00:00
Matt Beaumont-Gay
39af9449a2 Pacify GCC's -Wreturn-type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156189 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 18:34:27 +00:00
Hans Wennborg
fd5abd546e Make ARM and Mips use TargetMachine::getTLSModel() 
This moves the logic for selecting a TLS model to a single place,
instead of the previous three (ARM, Mips, and X86 which already
uses this function).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156162 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 09:40:39 +00:00
Craig Topper
31a207a3b7 Fix some loops to match coding standards. No functional change intended. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156159 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 06:39:13 +00:00
Craig Topper
6643d9c180 Fix up some spacing. No functional change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156158 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 06:18:33 +00:00
Craig Topper
5da8a80377 Simplify broadcast lowering code. No functional change intended. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156157 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 05:49:51 +00:00
Craig Topper
f3640d7ec1 Allow v16i16 and v32i8 shuffles to be rewritten as narrower shuffles. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156156 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 04:44:49 +00:00
Craig Topper
11ac1f81a8 Simplify shuffle narrowing code a bit. No functional change intended. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156154 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 04:08:44 +00:00
Jakob Stoklund Olesen
338607ae0d Remove the SubRegClasses field from RegisterClass descriptions. 
This information in now computed by TableGen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156152 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 03:30:34 +00:00
Jakob Stoklund Olesen
ed277f3eeb Initialize SparcInstrInfo before SparcTargetLowering. 
The TargetLowering construction needs to use a valid TargetRegisterInfo
instance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156146 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 02:16:39 +00:00
Jakob Stoklund Olesen
89e38f8721 Add a SuperRegClassIterator class. 
This iterator class provides a more abstract interface to the (Idx,
Mask) lists of super-registers for a register class. The layout of the
tables shouldn't be exposed to clients.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156144 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-04 01:48:29 +00:00
Jakob Stoklund Olesen
dd63a063e2 Use a shared implementation of getMatchingSuperRegClass(). 
TargetRegisterClass now gives access to the necessary tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156122 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-03 22:49:04 +00:00
Kevin Enderby
2d524b0765 Fix issues with the ARM bl and blx thumb instructions and the J1 and J2 bits 
for the assembler and disassembler.  Which were not being set/read correctly
for offsets greater than 22 bits in some cases.

Changes to lib/Target/ARM/ARMAsmBackend.cpp from Gideon Myles!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156118 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-03 22:41:56 +00:00
Sirish Pande
26f61a158b Support for target dependent Hexagon VLIW packetizer. 
This patch creates and optimizes packets as per Hexagon ISA rules.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156109 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-03 21:52:53 +00:00
Silviu Baranga
b422d0b65e Fixed disassembler for vstm/vldm ARM VFP instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156077 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-03 16:38:40 +00:00
Sirish Pande
71d56462a1 Extensions of Hexagon V4 instructions. 
This adds new instructions for Hexagon V4 architecture.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156071 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-03 16:18:50 +00:00
Craig Topper
b607264550 Use 'unsigned' instead of 'int' in a few places dealing with counts of vector elements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156060 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-03 07:26:59 +00:00
Craig Topper
6b28d356c5 Fix 256-bit vpshuflw and vpshufhw immediate encoding to handle undefs in the lower half correctly. Missed in r155982. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156059 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-03 07:12:59 +00:00
Andrew Trick
f12f6dff97 Added TargetRegisterInfo::getAllocatableClass. 
The ensures that virtual registers always belong to an allocatable class.
If your target attempts to create a vreg for an operand that has no
allocatable register subclass, you will crash quickly.

This ensures that targets define register classes as intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156046 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-03 01:14:37 +00:00
Preston Gurd
c0f0a93936 For Intel Atom, use ILP scheduling always, instead of ILP for 64 bit 
and Hybrid for 32 bit, since benchmarks show ILP scheduling is better
most of the time.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156028 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-02 22:02:02 +00:00
Preston Gurd
79bbe855cd Change the Intel Atom detection code to recognize 
Lincroft and Medfield.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156025 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-02 21:38:46 +00:00
Jim Grosbach
2727930ab4 ARM: Add missing two-operand VBIC aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156019 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-02 21:11:56 +00:00
Preston Gurd
95f0cf0438 This patch continues the work of adding instruction latencies for X86 Atom, 
by providing the latencies for the instructions in X86InstrFPStack.td.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155996 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-02 16:03:35 +00:00
Manman Ren
e2849851b2 Revert r155853 
The commit is intended to fix rdar://10961709.
But it is the root cause of PR12720.
Revert it for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155992 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-02 15:24:32 +00:00
Richard Barton
0a552d611e Disallow YIELD and other allocated nop hints in pre-ARMv6 architectures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155983 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-02 09:43:18 +00:00
Craig Topper
a9a568a79d Add support for selecting AVX2 vpshuflw and vpshufhw. Add decoding support for AsmPrinter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155982 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-02 08:03:44 +00:00
Jakub Staszak
dca40aa911 Remove unneeded break. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155959 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 23:08:16 +00:00
Jakub Staszak
bf14860572 Remove trailing spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155956 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 23:04:38 +00:00
Jim Grosbach
54319e2a8c ARM: Add a few missing add->sub aliases w/ 'w' suffix. 
Aliases for adding a negative immediate when using an explicit 'w'
suffix. E.g.,
        adds.w r2, #-16
        adds.w r2, r2, #-16
        addw r2, #-16
        addw r2, #-16
        addw r2, r2, #-16

rdar://11330769

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155946 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 21:17:34 +00:00
Jim Grosbach
94b590f8fa ARM: allow vanilla expressions for movw/movt. 
Expressions for movw/movt don't always have an :upper16: or :lower16:
on them and that's ok. When they don't, it's just a plain [0-65536]
immediate result, effectively the same as a :lower16: variant kind.

rdar://10550147

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155941 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 20:43:21 +00:00
Preston Gurd
66413b61f0 This patch marks the X86 floating point stack registers ST0-ST7 as reserved 
in order to avoid assertion failures in the register scavenger. The assertion
failures were “Bad machine code: Using an undefined physical register” and
“Bad machine code: MBB exits via unconditional fall-through but its successor
differs from its CFG successor!”.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155930 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 19:50:22 +00:00
Manman Ren
769ea2f93f X86: optimization for max-like struct 
This patch will optimize the following cases on X86
(a > b) ? (a-b) : 0
(a >= b) ? (a-b) : 0
(b < a) ? (a-b) : 0
(b <= a) ? (a-b) : 0

FROM
movl    %edi, %ecx
subl    %esi, %ecx
cmpl    %edi, %esi
movl    $0, %eax
cmovll  %ecx, %eax
TO
xorl    %eax, %eax
subl    %esi, %edi
cmovll  %eax, %edi
movl    %edi, %eax

rdar: 10734411


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155919 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 17:16:15 +00:00
Alexey Samsonov
d07d06ceef X86: Use StackRegister instead of FrameRegister in getFrameIndexReference (to generate debug info for local variables) if stack needs realignment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155917 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 15:16:06 +00:00
Benjamin Kramer
0998627b24 Move MipsDisassembler classes into an anonymous namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155915 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 14:34:24 +00:00
Benjamin Kramer
030a3415b0 Value-initialize global to avoid global construction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155909 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 10:48:02 +00:00
Bill Wendling
7c4ce30ea6 Change the PassManager from a reference to a pointer. 
The TargetPassManager's default constructor wants to initialize the PassManager
to 'null'. But it's illegal to bind a null reference to a null l-value. Make the
ivar a pointer instead.
PR12468


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155902 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 08:27:43 +00:00
Craig Topper
c80e7d2ea4 Allow BMI, AES, F16C, POPCNT, FMA3, and CLMUL to be detected on AMD processors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155899 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 07:10:32 +00:00
Craig Topper
e499cdf10c Make XOP and FMA4 require SSE4A to match GCC behavior. Use this to simplify Bulldozer feature list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155897 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 06:54:48 +00:00
Craig Topper
ff72e74d34 Attempt to handle MRMInitReg in emitVEXOpcodePrefix. Hopefully fixes PR12711. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155896 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 06:34:01 +00:00
Craig Topper
e106d2e2ac Make XOP imply AVX as its needed to legalize the registers types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155891 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-01 05:41:41 +00:00