Commit Graph

13454 Commits

Author SHA1 Message Date
Johnny Chen 74cca5a989 Added the following 16-bit Thumb instructions for disassembly only: YIELD, WFE,
WFI, SEV, SETEND.

llvm-svn: 97149
2010-02-25 17:51:03 +00:00
Dan Gohman 9b80f86e5b Revert r97064. Duncan pointed out that bitcasts are defined in
terms of store and load, which means bitcasting between scalar
integer and vector has endian-specific results, which undermines
this whole approach.

llvm-svn: 97137
2010-02-25 15:20:39 +00:00
Sanjiv Gupta ad117dac4b Each field of auxiliary debug entry is only 1 byte long.
llvm-svn: 97108
2010-02-25 03:54:49 +00:00
Johnny Chen 90adefcf7e Added tNOP for disassembly only.
llvm-svn: 97105
2010-02-25 03:28:51 +00:00
Dan Gohman ec4e1b67bf Truncate from i64 to i32 is "free" on x86-32, because it involves
just discarding one of the registers.

llvm-svn: 97100
2010-02-25 03:04:36 +00:00
Scott Michel 4a99c34873 Revert this patch for the time being. Needs more testing.
llvm-svn: 97099
2010-02-25 02:32:54 +00:00
Johnny Chen 57656da73f Added tSVC and tTRAP for disassembly only.
llvm-svn: 97098
2010-02-25 02:21:11 +00:00
Scott Michel 0ab0ad93bd Large stack frame patch for the CellSPU: handle stack frames that exceed 8176
(511*16) bytes register displacement (D-form).

NOTE: This is a potential headache, given the SPU's local core limitations,
allowing the software developer to commit stack overrun suicide unknowingly.
Also, large SPU stack frames will cause code size explosion. But, one presumes
that the software developer knows what they're doing...

Contributed by Kalle.Raiskila@nokia.com, edited slightly before commit.

llvm-svn: 97091
2010-02-25 01:53:17 +00:00
Jakob Stoklund Olesen 63af51c1c8 Create a stack frame on ARM when
- Function uses all scratch registers AND
- Function does not use any callee saved registers AND
- Stack size is too big to address with immediate offsets.

In this case a register must be scavenged to calculate the address of a stack
object, and the scavenger needs a spare register or emergency spill slot.

llvm-svn: 97071
2010-02-24 22:43:17 +00:00
Bob Wilson ba8ac74fd9 Check for comparisons of +/- zero when optimizing less-than-or-equal and
greater-than-or-equal SELECT_CCs to NEON vmin/vmax instructions.  This is
only allowed when UnsafeFPMath is set or when at least one of the operands
is known to be nonzero.

llvm-svn: 97065
2010-02-24 22:15:53 +00:00
Dan Gohman 4b2b48daba Make getTypeSizeInBits work correctly for array types; it should return
the number of value bits, not the number of bits of allocation for in-memory
storage.

Make getTypeStoreSize and getTypeAllocSize work consistently for arrays and
vectors.

Fix several places in CodeGen which compute offsets into in-memory vectors
to use TargetData information.

This fixes PR1784.

llvm-svn: 97064
2010-02-24 22:05:23 +00:00
Wesley Peck 05d9124625 Adding function "lookupGCCName" to MBlazeIntrinsicInfo
Adding the function "lookupGCCName" to the MBlazeIntrinsicInfo
class to support the Clang MicroBlaze target.

Additionally, minor fixes which remove some unused PIC code 
(PIC is not supported yet in the MicroBlaze backend) and
removed some unused variables.

llvm-svn: 97054
2010-02-24 20:16:27 +00:00
Johnny Chen 86ba44a4c7 Added Vector Swap (VSWPd and VSWPq) instructions for disassembly only.
A8.6.405

llvm-svn: 97052
2010-02-24 20:06:07 +00:00
Jakob Stoklund Olesen 0b94eb19e4 Stay away from str <undef> in ARMLoadStoreOpt. This pass does not understand
<undef> operands, and can cause scavenger failures when it translates
<kill,undef> to <kill>.

llvm-svn: 97046
2010-02-24 18:57:08 +00:00
Johnny Chen 03ac201ad9 Fixed typo of opcodestr, should be "vst1", not "vld1".
llvm-svn: 97044
2010-02-24 18:00:40 +00:00
Daniel Dunbar 4811d004be Speculatively revert r97011, "Re-apply 96540 and 96556 with fixes.", again in
the hopes of fixing PPC bootstrap.

llvm-svn: 97040
2010-02-24 17:05:47 +00:00
Dan Gohman 3860521406 When forming SSE min and max nodes for UGE and ULE comparisons, it's
necessary to swap the operands to handle NaN and negative zero properly.

Also, reintroduce logic for checking for NaN conditions when forming
SSE min and max instructions, fixed to take into consideration NaNs and
negative zeros. This allows forming min and max instructions in more
cases.

llvm-svn: 97025
2010-02-24 06:52:40 +00:00
Chandler Carruth f0485ed9ac Remove an unused variable. Was this intentional?
llvm-svn: 97022
2010-02-24 06:09:03 +00:00
Johnny Chen d5c472d811 Added for disassembly VST1 (multiple single elements) which stores elements to
memory from three or four registers and VST2 (multiple two-element structures)
which stores to memory from two double-spaced registers.

A8.6.391 & A8.6.393

llvm-svn: 97018
2010-02-24 02:57:20 +00:00
Jim Grosbach 2921550485 handle very large call frames when require SPAdj != 0 for Thumb1
llvm-svn: 97013
2010-02-24 02:15:43 +00:00
Jim Grosbach 6ad4bcb0da LowerCall() should always do getCopyFromReg() to reference the stack pointer.
Machine instruction selection is much happier when operands are in virtual
registers.

llvm-svn: 97012
2010-02-24 01:43:03 +00:00
Evan Cheng 328a607490 Re-apply 96540 and 96556 with fixes.
llvm-svn: 97011
2010-02-24 01:42:31 +00:00
Jakob Stoklund Olesen a2d8c97b65 DIV8r must define %AX since X86DAGToDAGISel::Select() sometimes uses it
instead of %AL/%AH.

llvm-svn: 97006
2010-02-24 00:39:35 +00:00
Evan Cheng da52f449a0 Fix rev 96389 by restricting the xform to mask that's either signbit or max signed value.
llvm-svn: 96990
2010-02-23 21:51:54 +00:00
Richard Osborne 00fb2ce233 Don't mark call instruction as a barrier.
llvm-svn: 96983
2010-02-23 21:08:11 +00:00
Johnny Chen b14a5c52bc Added for disassembly VLD1 (multiple single elements) which loads memory into
three or four registers and VLD2 (multiple two-element structures) which loads
memory into two double-spaced registers.

A8.6.307 & A8.6.310

llvm-svn: 96980
2010-02-23 20:51:23 +00:00
Nicolas Geoffray 3cc6673fd0 Use the module's context instead of the global context.
llvm-svn: 96977
2010-02-23 19:42:44 +00:00
Chris Lattner 8d7b4393d2 no need to override IsLegalToFold, the base implementation
disables load folding at -O0.

llvm-svn: 96973
2010-02-23 19:33:11 +00:00
Wesley Peck e4801e49c9 Adding the MicroBlaze backend.
The MicroBlaze is a highly configurable 32-bit soft-microprocessor for
use on Xilinx FPGAs. For more information see:
http://www.xilinx.com/tools/microblaze.htm
http://en.wikipedia.org/wiki/MicroBlaze

The current LLVM MicroBlaze backend generates assembly which can be
compiled using the an appropriate binutils assembler.

llvm-svn: 96969
2010-02-23 19:15:24 +00:00
Richard Osborne 3a53f4e240 ECALLF, ECALLT shouldn't be marked as barriers.
llvm-svn: 96964
2010-02-23 18:29:49 +00:00
Richard Osborne f81db146b4 Mark unconditional branches as barriers. Found using -verify-machineinstrs
llvm-svn: 96960
2010-02-23 18:13:38 +00:00
Jim Grosbach 2f840382e2 Spelling. s/suppor /support /
llvm-svn: 96954
2010-02-23 17:16:27 +00:00
Richard Osborne e3eb3105d9 Remove unused lowering function LowerJumpTable
llvm-svn: 96943
2010-02-23 14:17:20 +00:00
Richard Osborne f578196968 Lower BR_JT on the XCore to a jump into a series of jump instructions.
llvm-svn: 96942
2010-02-23 13:25:07 +00:00
Chris Lattner 89f6ec462d disable two patterns that are using non-sensical result pattern types.
llvm-svn: 96903
2010-02-23 07:21:15 +00:00
Chris Lattner 7489838a89 remove a confused pattern that is trying to match an address
then use it as an MMX register (!?).

llvm-svn: 96901
2010-02-23 07:16:12 +00:00
Chris Lattner d17089231a remove a bunch of dead named arguments in input patterns,
though some look dubious afaict, these are all ok.

llvm-svn: 96899
2010-02-23 06:54:29 +00:00
Chris Lattner 48370e14e7 fix a type mismatch in this pattern, where we were using an i64 imm in a
place where an i32 imm was required, the old isel just got lucky.

This fixes CodeGen/X86/x86-64-and-mask.ll

llvm-svn: 96894
2010-02-23 06:09:57 +00:00
Chris Lattner c51b7198a9 reapply my cellspu changes with a fix to not break the old isel.
llvm-svn: 96885
2010-02-23 05:30:43 +00:00
Dan Gohman 7e5c4906dd Revert 96854, 96852, and 96849, unbreaking test/CodeGen/CellSPU/i64ops.ll.
llvm-svn: 96871
2010-02-23 02:33:29 +00:00
Chris Lattner a828850b4d X86InstrInfoSSE.td declares PINSRW as having type v8i16,
don't alis it in the MMX .td file with a different width,
split into two X86ISD opcodes.  This fixes an x86 testcase.

llvm-svn: 96859
2010-02-23 02:07:48 +00:00
Johnny Chen 21dbd6f449 Added versions of VCGE, VCGT, VCLE, and VCLT NEON instructions which compare to
(immediate #0) for disassembly only.

A8.6.283, A8.6.285, A8.6.287, A8.6.290

llvm-svn: 96856
2010-02-23 01:42:58 +00:00
Chris Lattner 22bc26e4cf fix hte last cellspu failure.
llvm-svn: 96854
2010-02-23 01:37:39 +00:00
Chris Lattner 807666783c hack around more crimes in instruction selection.
llvm-svn: 96852
2010-02-23 01:33:17 +00:00
Chris Lattner fbbe2617dc the cell backend is making all sorts of unsafe and incorrect assumptions
about ownership and update policies.  It isn't clear why it is doing all
this lowering at isel time instead of in legalize.  This fixes fcmp64.ll

llvm-svn: 96849
2010-02-23 01:20:00 +00:00
Johnny Chen 886915e3bb Added VCEQ (immediate #0) NEON instruction for disassembly only.
A8.6.281

llvm-svn: 96838
2010-02-23 00:33:12 +00:00
Jim Grosbach 45fceea0e4 Updated version of r96634 (which was reverted due to failing 176.gcc and
126.gcc nightly tests. These failures uncovered latent bugs that machine DCE
could remove one half of a stack adjust down/up pair, causing PEI to assert.
This update fixes that, and the tests now pass.

llvm-svn: 96822
2010-02-22 23:10:38 +00:00
Jim Grosbach 017a505716 Clean up a bit and fix for when SPAdj != 0
llvm-svn: 96818
2010-02-22 22:54:55 +00:00
Jim Grosbach 15f6ed348f The predicate index isn't fixed, so scan for it to make sure we get the proper
value.

Thumb2 uses the tADJCALLSTACK* instructions, and doesn't need t2 versions, so
remove the FIXME entry.

llvm-svn: 96817
2010-02-22 22:47:46 +00:00
Chris Lattner 3ac438b920 remove dupes now.
llvm-svn: 96811
2010-02-22 22:15:05 +00:00
Chris Lattner 435611200b move #includes earlier.
llvm-svn: 96810
2010-02-22 22:14:47 +00:00
Johnny Chen 5ddd4aca97 Added SEL, SXTB16, SXTAB16, UXTAB16, SMMULR, SMMLAR, SMMLSR, SMUAD, and SMUSD,
for disassembly only.

llvm-svn: 96806
2010-02-22 21:50:40 +00:00
Johnny Chen 9d4a3e2a7c Added a bunch of instructions for disassembly only:
o signed/unsigned add/subtract
o signed/unsigned halving add/subtract
o unsigned sum of absolute difference [and accumulate]
o signed/unsigned saturate
o signed multiply accumulate/subtract [long] dual

llvm-svn: 96795
2010-02-22 18:50:54 +00:00
Arnold Schwaighofer 30ece5b807 Mark the return address stack slot as mutable when moving the return address
during a tail call. A parameter might overwrite this stack slot during the tail
call. 

The sequence during a tail call is:
1.) load return address to temp reg
2.) move parameters (might involve storing to return address stack slot)
3.) store return address to new location from temp reg

If the stack location is marked immutable CodeGen can colocate load (1) with the
store (3).

This fixes bug 6225.

llvm-svn: 96783
2010-02-22 16:18:09 +00:00
Dan Gohman c1a545c307 Fix a typo in a comment.
llvm-svn: 96778
2010-02-22 04:09:26 +00:00
Dan Gohman b87de8d30d Remove the logic for reasoning about NaNs from the code that forms
SSE min and max instructions. The real thing this code needs to be
concerned about is negative zero.

Update the sse-minmax.ll test accordingly, and add tests for
-enable-unsafe-fp-math mode as well.

llvm-svn: 96775
2010-02-22 04:03:39 +00:00
Chris Lattner db8d6678e9 fix an incorrect VT: eflags is always i32. The bug was causing us to
create an X86ISD::Cmp node with result type i64 on the 
CodeGen/X86/shift-i256.ll testcase and the new isel was assert on it
downstream.

llvm-svn: 96768
2010-02-22 00:28:59 +00:00
Daniel Dunbar 40eb7f0991 MC/X86: Add stub AsmBackend.
llvm-svn: 96763
2010-02-21 21:54:14 +00:00
Anton Korobeynikov 31a9212b0b It turned out that we failed to emit proper symbol stubs on non-x86/darwin for ages (we emitted a reference to a stub, but no stub was emitted). The code inside x86-32/macho target objfile lowering should actually be the generic one - move it there.
This (I really, really hope) should fix EH issues on ppc/darwin
and arm/darwin.

llvm-svn: 96755
2010-02-21 20:28:15 +00:00
Duncan Sands 455201ba71 Remove a bunch of duplicated code, where there was one version taking a std::ostream
and another taking a raw_ostream, but otherwise identical.  Use raw_ostream everywhere.

llvm-svn: 96746
2010-02-21 19:15:19 +00:00
Anton Korobeynikov e96503faa1 IT turns out that during jumpless setcc lowering eq and ne were swapped.
This fixes PR6348

llvm-svn: 96734
2010-02-21 12:28:58 +00:00
Chris Lattner 3c29aff9ff fix and un-xfail X86/vec_ss_load_fold.ll
llvm-svn: 96720
2010-02-21 04:53:34 +00:00
Johnny Chen a07c9c7c56 Undo r96654. The printing of ARM shift instructions in canonical forms can be
handled in ARMInstPrinter.cpp.

And added PLD/PLDW/PLI (Preload Data/Instruction) for disassembly only.

llvm-svn: 96719
2010-02-21 04:42:01 +00:00
Chris Lattner 18a32ce0f3 rename SelectScalarSSELoad -> SelectScalarSSELoadXXX and rewrite
it to follow the mode needed by the new isel.  Instead of returning
the input and output chains, it just returns the (currently only one,
which is a silly limitation) node that has input and output chains.

Since we want the old thing to still work, add a new 
SelectScalarSSELoad to emulate the old interface.  The XXX suffix
and the wrapper will eventually go away.

llvm-svn: 96715
2010-02-21 03:17:59 +00:00
Chris Lattner 986ab3fb1d Eliminate some uses of immAllOnes, just use -1, it does
the same thing and is more efficient for the matcher.

llvm-svn: 96712
2010-02-21 03:12:16 +00:00
Bob Wilson fbc9d8d424 Revert 96634. It causes assertion failures for 126.gcc and 176.gcc in
the armv6 nightly tests.

llvm-svn: 96691
2010-02-19 18:59:53 +00:00
Charles Davis 7e47767763 Add support for the 'alignstack' attribute to the x86 backend. Fixes PR5254.
Also, FileCheck'ize a test.

llvm-svn: 96686
2010-02-19 18:17:13 +00:00
Bob Wilson 336c0a1c87 Revert Anton's most recent EH patch (r96637), since it breaks a lot of
ARM and Thumb tests.

llvm-svn: 96680
2010-02-19 17:10:59 +00:00
Duncan Sands d0bf6f640f Revert commits 96556 and 96640, because commit 96556 breaks the
dragonegg self-host build.  I reverted 96640 in order to revert
96556 (96640 goes on top of 96556), but it also looks like with
both of them applied the breakage happens even earlier.  The
symptom of the 96556 miscompile is the following crash:

  llvm[3]: Compiling AlphaISelLowering.cpp for Release build
  cc1plus: /home/duncan/tmp/tmp/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:4982: void llvm::SelectionDAG::ReplaceAllUsesWith(llvm::SDNode*, llvm::SDNode*, llvm::SelectionDAG::DAGUpdateListener*): Assertion `(!From->hasAnyUseOfValue(i) || From->getValueType(i) == To->getValueType(i)) && "Cannot use this version of ReplaceAllUsesWith!"' failed.
  Stack dump:
  0.	Running pass 'X86 DAG->DAG Instruction Selection' on function '@_ZN4llvm19AlphaTargetLowering14LowerOperationENS_7SDValueERNS_12SelectionDAGE'
  g++: Internal error: Aborted (program cc1plus)

This occurs when building LLVM using LLVM built by LLVM (via
dragonegg).  Probably LLVM has miscompiled itself, though it
may have miscompiled GCC and/or dragonegg itself: at this point
of the self-host build, all of GCC, LLVM and dragonegg were built
using LLVM.  Unfortunately this kind of thing is extremely hard
to debug, and while I did rummage around a bit I didn't find any
smoking guns, aka obviously miscompiled code.

Found by bisection.

r96556 | evancheng | 2010-02-18 03:13:50 +0100 (Thu, 18 Feb 2010) | 5 lines

Some dag combiner goodness:
Transform br (xor (x, y)) -> br (x != y)
Transform br (xor (xor (x,y), 1)) -> br (x == y)
Also normalize (and (X, 1) == / != 1 -> (and (X, 1)) != / == 0 to match to "test on x86" and "tst on arm"

r96640 | evancheng | 2010-02-19 01:34:39 +0100 (Fri, 19 Feb 2010) | 16 lines

Transform (xor (setcc), (setcc)) == / != 1 to
(xor (setcc), (setcc)) != / == 1.

e.g. On x86_64
  %0 = icmp eq i32 %x, 0
  %1 = icmp eq i32 %y, 0
  %2 = xor i1 %1, %0
  br i1 %2, label %bb, label %return
=>
	testl   %edi, %edi
	sete    %al
	testl   %esi, %esi
	sete    %cl
	cmpb    %al, %cl
	je      LBB1_2

llvm-svn: 96672
2010-02-19 11:30:41 +00:00
Johnny Chen 1ca8af9b76 Added entries for ASR, LSL, LSR, ROR, and RRX so that the disassembler prints
out the canonical form (A8.6.98) instead of the pseudo-instruction as provided
via MOVs.

DBG_ARM_DISASM=YES llvm-mc -triple=arm-unknown-unknown --disassemble
0xc0 0x00 0xa0 0xe1
Opcode=29 Name=ASR Format=ARM_FORMAT_LDMISCFRM
 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0 
-------------------------------------------------------------------------------------------------
| 1: 1: 1: 0| 0: 0: 0: 1| 1: 0: 1: 0| 0: 0: 0: 0| 0: 0: 0: 0| 0: 0: 0: 0| 1: 1: 0: 0| 0: 0: 0: 0|
-------------------------------------------------------------------------------------------------

	asr	r0, r0, #1

llvm-svn: 96654
2010-02-19 02:12:06 +00:00
Anton Korobeynikov 9baeb02000 Use the same encoding for EH stuff uniformly on all MachO targets.
This hopefulyl should unbreak EH on PPC/Darwin.

llvm-svn: 96637
2010-02-19 00:29:36 +00:00
Jim Grosbach aa34003f6f Radar 7636153. In the presence of large call frames, it's not sufficient
for ARM to just check if a function has a FP to determine if it's safe
to simplify the stack adjustment pseudo ops prior to eliminating frame
indices. Allow targets to override the default behavior and does so for ARM
and Thumb2.

llvm-svn: 96634
2010-02-19 00:16:24 +00:00
Johnny Chen 688a90e2d7 Added LDRD_PRE/POST & STRD_PRE/POST for disassembly only.
llvm-svn: 96619
2010-02-18 22:31:18 +00:00
Dale Johannesen 654528e8a7 Generate DBG_VALUE from dbg.value intrinsics. These currently
comes out as comments but will eventually generate DWARF.

llvm-svn: 96601
2010-02-18 18:51:15 +00:00
Sanjiv Gupta a124a46748 Remap the call sites of a shared function in interrupt line functions.
llvm-svn: 96591
2010-02-18 18:00:35 +00:00
Sanjiv Gupta 32db8a17c5 Re-factoring.
llvm-svn: 96589
2010-02-18 17:32:25 +00:00
Chris Lattner fd47c79774 add a missing type cast.
llvm-svn: 96574
2010-02-18 06:33:42 +00:00
Bob Wilson c6c13a3515 Use NEON vmin/vmax instructions for floating-point selects.
Radar 7461718.

llvm-svn: 96572
2010-02-18 06:05:53 +00:00
Johnny Chen 74c904589e Added LDRSBT, LDRHT, LDRSHT for disassembly only. And fixed encoding errors
of AI3ldsbpo, AI3ldhpo, and AI3ldshpo in ARMInstrFormats.td in the process.

llvm-svn: 96565
2010-02-18 03:27:42 +00:00
Evan Cheng 0ceb68a552 Some dag combiner goodness:
Transform br (xor (x, y)) -> br (x != y)
Transform br (xor (xor (x,y), 1)) -> br (x == y)
Also normalize (and (X, 1) == / != 1 -> (and (X, 1)) != / == 0 to match to "test on x86" and "tst on arm"

llvm-svn: 96556
2010-02-18 02:13:50 +00:00
Johnny Chen f3d79a5025 Added for disassembly only the variants of DMB, DSB, and ISB.
llvm-svn: 96540
2010-02-18 00:19:08 +00:00
Bob Wilson cb2deb2aaf Remove the NEON N2VSInt instruction class: it's only used in one place and
since it has no pattern, there's not much point in distinguishing an "N2VS"
class for intrinsics anyway.

llvm-svn: 96525
2010-02-17 22:42:54 +00:00
Johnny Chen 1d793a5e0e Added CLREX (Clear-Exclusive) for disassembly only.
A8.6.30

llvm-svn: 96523
2010-02-17 22:37:58 +00:00
Bob Wilson 004d280d5e More cleanup for NEON:
* Use "S" abbreviation for scalar single FP registers in class and pattern
names, instead of keeping the "D" (for "double") abbreviation and tacking on
an "s" elsewhere in the name.
* Move the scalar single FP register classes and patterns to be more
consistent with other definitions in the file.
* Rename "VNEGf32d" definition to "VNEGfd" for consistency.
* Deleted the N2VDIntsPat pattern; N2VSPat is good enough.

llvm-svn: 96521
2010-02-17 22:23:11 +00:00
Johnny Chen 5454e0633e Added RFE for disassembly only.
B6.1.8 RFE Return From Exception loads the PC and the CPSR from the word at the
specified address and the following word respectively.

llvm-svn: 96519
2010-02-17 21:39:10 +00:00
Jakob Stoklund Olesen 34d6a4ff17 Remember to define super registers in mips calls.
llvm-svn: 96504
2010-02-17 20:18:50 +00:00
Chris Lattner bdceca6f49 "Fix and issue in SparcAsmPrinter where multiple identical .LLGETPCHn symbols could be emitted in the same file (it was uniqued by block number, but not by function number). " Patch by Nathan Keynes!
llvm-svn: 96495
2010-02-17 18:57:19 +00:00
Chris Lattner 1fa9c2cce4 move isOnlyReachableByFallthrough out of MachineBasicBlock into AsmPrinter,
and add a sparc implementation that knows about delay slots.  Patch by
Nathan Keynes!

llvm-svn: 96492
2010-02-17 18:52:56 +00:00
Chris Lattner cb80e2527e add a note, from PR5100
llvm-svn: 96490
2010-02-17 18:42:24 +00:00
Sanjiv Gupta 69346eb94f Added routine to clone the body of a function and maintain a map of already
cloned functions.

llvm-svn: 96485
2010-02-17 18:11:29 +00:00
Sanjiv Gupta 81b3aa1b2f Added a function to clone locals of a function.( which for pic16 are globals
with mangled names).

llvm-svn: 96465
2010-02-17 06:48:50 +00:00
Sanjiv Gupta 0f5c8f2339 Removed header files from .h by adding forward decls.
Renamed PIC16FrameOverlay namespace to PIC16OVERLAY.
Renamed PIC16FrameOverlay class to PIC16Overlay.

llvm-svn: 96463
2010-02-17 06:46:23 +00:00
Johnny Chen 036b2f6542 Added BFI for disassembly only.
A8.6.18  BFI - Bitfield insert (Encoding A1)

llvm-svn: 96462
2010-02-17 06:31:48 +00:00
Chris Lattner 3f48215480 rename and document some arguments so I don't have to keep
reverse engineering what they are.

llvm-svn: 96456
2010-02-17 06:07:47 +00:00
Anton Korobeynikov cf1f5b0286 Use pointer-wide encoding for LSDA and FDE on Darwin.
Hopefully, this will fix the remaining issues seen there.

llvm-svn: 96454
2010-02-17 05:53:11 +00:00
Chris Lattner b67807e7ef daniel remembered why this was needed.
llvm-svn: 96440
2010-02-17 01:55:54 +00:00
Chris Lattner d8716676ea add a comment explaining why darwin/i386 uses ## as a comment.
It's not clear why this is really required, but it was explicitly
added in r48808 with no real explanation or rdar #.

llvm-svn: 96438
2010-02-17 01:38:01 +00:00
Sanjiv Gupta 84a85fcb91 Initial implementation of PIC16 Cloner pass.
This pass is supposed to be run on the linked .bc module.
It traveses the module call graph twice. Once starting from the main function
and marking each reached function as "ML". Again, starting from the ISR
and cloning any reachable function that was marked as "ML". After cloning
the function, it remaps all the call sites in IL functions to call the
cloned functions. 

Currently only marking is being done.

llvm-svn: 96435
2010-02-17 01:11:53 +00:00
Dan Gohman 12995ba3c0 Make the operand and format specifier match, and print all
64 bits, fixing a variety of problems.

llvm-svn: 96421
2010-02-17 00:37:20 +00:00
Bob Wilson 9e89907ed5 Wrap lines to 80 columns and generally try to clean up whitespace and
indentation.  No functional changes.

llvm-svn: 96418
2010-02-17 00:31:29 +00:00
Bill Wendling 85e5081c77 Make error statement more personal.
llvm-svn: 96410
2010-02-16 22:47:14 +00:00
Chris Lattner afac7dad21 fix rdar://7653908, a crash on a case where we would fold a load
into a roundss intrinsic, producing a cyclic dag.  The root cause
of this is badness handling ComplexPattern nodes in the old dagisel
that I noticed through inspection.  Eliminate a copy of the of the
code that handled ComplexPatterns by making EmitChildMatchCode call
into EmitMatchCode.

llvm-svn: 96408
2010-02-16 22:35:06 +00:00
Bob Wilson 37f106e18c Handle tGPR register class in a few more places. This fixes some llvm-gcc
build failures due to my fix for pr6111.

llvm-svn: 96402
2010-02-16 22:01:59 +00:00
Johnny Chen 4c444bf606 Add SMC (Secure Monitor Call) system instruction for disassembly only.
llvm-svn: 96401
2010-02-16 21:59:54 +00:00
Dale Johannesen 1b967bf0e4 Really reserve R2 on PPC Darwin. PR 6314.
llvm-svn: 96399
2010-02-16 21:53:27 +00:00
Jim Grosbach 3e2cad3b1a 80 column cleanup
llvm-svn: 96393
2010-02-16 21:23:02 +00:00
Evan Cheng 82b04130cb Look for SSE and instructions of this form: (and x, (build_vector c1,c2,c3,c4)).
If there exists a use of a build_vector that's the bitwise complement of the mask,
then transform the node to
(and (xor x, (build_vector -1,-1,-1,-1)), (build_vector ~c1,~c2,~c3,~c4)).

Since this transformation is only useful when 1) the given build_vector will
become a load from constpool, and 2) (and (xor x -1), y) matches to a single
instruction, I decided this is appropriate as a x86 specific transformation.
rdar://7323335

llvm-svn: 96389
2010-02-16 21:09:44 +00:00
Jim Grosbach fba7fce5be Remove trailing whitespace
llvm-svn: 96388
2010-02-16 21:07:46 +00:00
David Greene 9641d06809 Add support for emitting non-temporal stores for DAGs marked
non-temporal.  Fix from r96241 for botched encoding of MOVNTDQ.

Add documentation for !nontemporal metadata.

Add a simpler movnt testcase.

llvm-svn: 96386
2010-02-16 20:50:18 +00:00
Jim Grosbach 2284ddab56 Update Thumb2 to not use CarryDefIsUnused or CarryDefIsUsed predicates, but
to have the predicate on the pattern itself instead. Support for the new
ISel. Remove definitions of CarryDefIsUnused and CarryDefIsUsed since they are
no longer used anywhere.

llvm-svn: 96384
2010-02-16 20:42:29 +00:00
Jim Grosbach 756ab53e60 Remove redundant setting of Defs. CPSR is already marked by the block level set of Defs.
llvm-svn: 96383
2010-02-16 20:35:59 +00:00
Jim Grosbach 0a334d0df9 First step in eliminating the CarryDefIsUnused and CarryDefIsUsed predicates.
They won't work with the new ISel mechanism, as Requires predicates are no
longer allowed to reference the node being selected. Moving the predicate to
the patterns instead solves the problem.

This patch handles ARM mode. Thumb2 will follow.

llvm-svn: 96381
2010-02-16 20:17:57 +00:00
Johnny Chen 46c39d4f1f Added for disassembly the following instructions:
o Store Return State (SRSW, SRS)
o Load/Store Coprocessor (LDC/STC and friends)
o MSR (immediate)

llvm-svn: 96380
2010-02-16 20:04:27 +00:00
Bob Wilson 70aa8d0745 Fix pr6111: Avoid using the LR register for the target address of an indirect
branch in ARM v4 code, since it gets clobbered by the return address before
it is used.  Instead of adding a new register class containing all the GPRs
except LR, just use the existing tGPR class.

llvm-svn: 96360
2010-02-16 17:24:15 +00:00
Duncan Sands cbd43f89ac Introduce isOpaqueTy and use it rather than isa<OpaqueType>. Also, move some
methods to try to have the type predicates be more logically positioned.

llvm-svn: 96349
2010-02-16 14:50:09 +00:00
Duncan Sands 19d0b47b1f There are two ways of checking for a given type, for example isa<PointerType>(T)
and T->isPointerTy().  Convert most instances of the first form to the second form.
Requested by Chris.

llvm-svn: 96344
2010-02-16 11:11:14 +00:00
Benjamin Kramer d7d8afabd0 Minor warning fixes (semicolons, newline at EOF).
llvm-svn: 96343
2010-02-16 10:25:04 +00:00
Chris Lattner 52bfe24e2c mark all the generated node predicates 'const'.
llvm-svn: 96337
2010-02-16 07:26:36 +00:00
Chris Lattner 4964ef88c2 make pcrel immediate values relative to the start of the field,
not the end of the field, fixing rdar://7651978

llvm-svn: 96330
2010-02-16 05:03:17 +00:00
Sanjiv Gupta adcee844ea The code section for an ISR has a specific address.
Currently, whether a function is ISR or not is encoded in the section attribute for that function.

llvm-svn: 96322
2010-02-16 03:41:07 +00:00
Rafael Espindola af25cf825c Drop support for the InReg attribute on the ppc backend. This was used by
llvm-gcc but has been replaced with pad argument which don't need any
special backend support.

llvm-svn: 96312
2010-02-16 01:50:18 +00:00
Bob Wilson a945c64b5a Put repeated empty pattern into the AQI instruction class.
We could almost use a multiclass for the signed/unsigned instructions, but
there are only 6 of them so I guess it's not worth it.

llvm-svn: 96297
2010-02-15 23:43:47 +00:00
Anton Korobeynikov c9adb6a463 Fix a silly darwin-only typo introduced during merge.
llvm-svn: 96289
2010-02-15 22:38:10 +00:00
Anton Korobeynikov ab663a0bfe Move TLOF implementations to libCodegen to resolve layering violation.
llvm-svn: 96288
2010-02-15 22:37:53 +00:00
Anton Korobeynikov 397aecb6d6 Add suffix for stubs, so we won't have name clashes with private symbols.
llvm-svn: 96286
2010-02-15 22:36:26 +00:00
Anton Korobeynikov ae4ccc10da Preliminary patch to improve dwarf EH generation - Hooks to return Personality / FDE / LSDA / TType encoding depending on target / options (e.g. code model / relocation model) - MCIzation of Dwarf EH printer to use encoding information - Stub generation for ELF target (needed for indirect references) - Some other small changes here and there
llvm-svn: 96285
2010-02-15 22:35:59 +00:00
Chris Lattner bcbaaba532 revert r96241. It breaks two regression tests, isn't documented,
and the testcase needs improvement.

llvm-svn: 96265
2010-02-15 20:53:01 +00:00
Evan Cheng 5e73ff2e3a Split SelectionDAGISel::IsLegalAndProfitableToFold to
IsLegalToFold and IsProfitableToFold. The generic version of the later simply checks whether the folding candidate has a single use.

This allows the target isel routines more flexibility in deciding whether folding makes sense. The specific case we are interested in is folding constant pool loads with multiple uses.

llvm-svn: 96255
2010-02-15 19:41:07 +00:00
David Greene 63cedef74b Add support for emitting non-temporal stores for DAGs marked
non-temporal.

llvm-svn: 96241
2010-02-15 17:02:56 +00:00
David Greene cbd39c5def Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96239
2010-02-15 16:57:43 +00:00
David Greene 15478ac350 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96238
2010-02-15 16:57:13 +00:00
David Greene 772fc34209 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96237
2010-02-15 16:57:02 +00:00
David Greene 87a5abea33 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96236
2010-02-15 16:56:53 +00:00
David Greene 2138b0fc90 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96235
2010-02-15 16:56:34 +00:00
David Greene 27d044d65d Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96234
2010-02-15 16:56:22 +00:00
David Greene 3cd87cc5ee Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96233
2010-02-15 16:56:10 +00:00
David Greene cfa68983e8 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96232
2010-02-15 16:55:58 +00:00
David Greene af2931d7bf Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96231
2010-02-15 16:55:37 +00:00
David Greene 0d0149f5ac Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96230
2010-02-15 16:55:24 +00:00
David Greene e2e2073303 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96229
2010-02-15 16:55:07 +00:00
David Greene ff34702b04 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96228
2010-02-15 16:53:33 +00:00
David Greene 68ea4da8cb Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96227
2010-02-15 16:49:52 +00:00
Duncan Sands 9dff9bec31 Uniformize the names of type predicates: rather than having isFloatTy and
isInteger, we now have isFloatTy and isIntegerTy.  Requested by Chris!

llvm-svn: 96223
2010-02-15 16:12:20 +00:00
Andrew Lenharth 6b5e62fb0b Fix changes from r75027
llvm-svn: 96220
2010-02-15 15:00:44 +00:00
Chris Lattner d4df64d15f no need to add the instruction count anymore.
llvm-svn: 96212
2010-02-15 06:38:41 +00:00
Chris Lattner 4aa57ba3ef mark "addr" as having type "iPTR", eliminating some type comparisons
in hte generated dag isel fil.

llvm-svn: 96193
2010-02-14 21:53:19 +00:00
Sanjiv Gupta d6cbe9f23f fixes to pagesel/banksel inserter.
1. restore these across direct/indirect calls.
2. restore pagesel for any macros with gotos.

llvm-svn: 96175
2010-02-14 18:27:42 +00:00
Anton Korobeynikov 0a5e0371b0 Forgot to commit the header
llvm-svn: 96174
2010-02-14 18:25:41 +00:00
Anton Korobeynikov ce77ce3072 Drop winmcasminfo and use normal AT&T COFF for all windows targets.
Otherwise AT&T asm printer is used with non-compatible MCAsmInfo and
there is no way to override this behaviour.

llvm-svn: 96165
2010-02-14 15:19:54 +00:00
Johnny Chen c95a814ec3 Try to factorize the specification of saturating add/subtract operations a bit,
as suggested by Bob Wilson.

llvm-svn: 96153
2010-02-14 06:32:20 +00:00
Chris Lattner 406cd61828 teach the encoder to handle pseudo instructions like FP_REG_KILL,
encoding them into nothing.

llvm-svn: 96110
2010-02-13 19:16:53 +00:00
Daniel Dunbar 2610a34b15 X86: Move extended MCFixupKinds into X86FixupKinds.h
llvm-svn: 96088
2010-02-13 09:27:52 +00:00
Chris Lattner f83726f6ba add encoder support and tests for rdtscp
llvm-svn: 96076
2010-02-13 03:42:24 +00:00
Johnny Chen 52a6ab3ba7 Add SETEND and BXJ instructions for disassembly only.
llvm-svn: 96075
2010-02-13 02:51:09 +00:00
Sean Callanan 4d804d794f Added the rdtscp instruction to the x86 instruction
tables.

llvm-svn: 96073
2010-02-13 02:06:11 +00:00
Evan Cheng 3b065cdb64 Teach MachineFrameInfo to track maximum alignment while stack objects are being
created. This ensures it's updated at all time. It means targets which perform
dynamic stack alignment would know whether it is required and whether frame
pointer register cannot be made available register allocation.
This is a fix for rdar://7625239. Sorry, I can't create a reasonably sized test
case.

llvm-svn: 96069
2010-02-13 01:56:41 +00:00
Sean Callanan 44232af55a Fixed encodings for invlpg, invept, and invvpid.
llvm-svn: 96065
2010-02-13 01:48:34 +00:00
Johnny Chen b0208d2a06 Added a bunch of saturating add/subtract instructions for disassembly only.
llvm-svn: 96063
2010-02-13 01:21:01 +00:00
Chris Lattner 509154e0f9 rip out the 'heinous' x86 MCCodeEmitter implementation.
We still have the templated X86 JIT emitter, *and* the
almost-copy in X86InstrInfo for getting instruction sizes.

llvm-svn: 96059
2010-02-13 00:49:29 +00:00
Chris Lattner 140caa7240 remove special cases for vmlaunch, vmresume, vmxoff, and swapgs
fix swapgs to be spelled right.

llvm-svn: 96058
2010-02-13 00:41:14 +00:00
Daniel Dunbar 224340cabe MC/X86: Push immediate operands as immediates not expressions when possible.
llvm-svn: 96055
2010-02-13 00:17:21 +00:00
Chris Lattner 064e926362 Remove special cases for [LM]FENCE, MONITOR and MWAIT from
encoder and decoder by using new MRM_ forms.

llvm-svn: 96048
2010-02-12 23:54:57 +00:00
Chris Lattner 1e827fd8ca implement the rest of correct x86-64 encoder support for
rip-relative addresses, and add a testcase.

llvm-svn: 96040
2010-02-12 23:24:09 +00:00
Dale Johannesen 626b79d6a6 Add the problem I just hacked around in 96015/96020.
The solution there produces correct code, but is seriously
deficient in several ways.

llvm-svn: 96039
2010-02-12 23:16:24 +00:00
Chris Lattner 741580a5bd give MCCodeEmitters access to the current MCContext.
llvm-svn: 96038
2010-02-12 23:12:47 +00:00
Chris Lattner 4ad96055fb implement infrastructure to support fixups for rip-rel
addressing.  This isn't complete because I need an MCContext
to generate new MCExprs.

llvm-svn: 96036
2010-02-12 23:00:36 +00:00
Johnny Chen 29a9103ee6 Add YIELD, WFE, WFI, and SEV instructions for disassembly only.
Plus add two formats: MiscFrm and ThumbMiscFrm.  Some of the for disassembly
only instructions are changed from Pseudo Format to MiscFrm Format.

llvm-svn: 96032
2010-02-12 22:53:19 +00:00
Chris Lattner d18320361f pull the rip-relative addressing mode case up early.
llvm-svn: 96031
2010-02-12 22:47:55 +00:00
Chris Lattner 6c1c0141be fixme resolved!
llvm-svn: 96029
2010-02-12 22:39:06 +00:00
Chris Lattner 0055e75249 start producing reloc_pcrel_4byte/reloc_pcrel_1byte for calls.
llvm-svn: 96028
2010-02-12 22:36:47 +00:00
Chris Lattner 12455ca03d enhance the immediate field encoding to know whether the immediate
is pc relative or not, mark call and branches as pcrel.

llvm-svn: 96026
2010-02-12 22:27:07 +00:00
Evan Cheng 439bda9d3f Load / store multiple instructions cannot load / store sp. Sorry, can't come up with a reasonable test case.
llvm-svn: 96023
2010-02-12 22:17:21 +00:00
Dale Johannesen cb39340b81 This should have gone in with 26015, see comments there.
llvm-svn: 96020
2010-02-12 22:00:40 +00:00
Johnny Chen dc2051c802 Add halfword multiply accumulate long SMLALBB/BT/TB/TT for disassembly only.
llvm-svn: 96019
2010-02-12 21:59:23 +00:00
Dale Johannesen 26062150fa When save/restoring CR at prolog/epilog, in a large
stack frame, the prolog/epilog code was using the same
register for the copy of CR and the address of the save slot.  Oops.
This is fixed here for Darwin, sort of, by reserving R2 for this case.
A better way would be to do the store before the decrement of SP,
which is safe on Darwin due to the red zone.

SVR4 probably has the same problem, but I don't know how to fix it;
there is no red zone and R2 is already used for something else.
I'm going to leave it to someone interested in that target.

Better still would be to rewrite the CR-saving code completely;
spilling each CR subregister individually is horrible code.

llvm-svn: 96015
2010-02-12 21:35:34 +00:00
Chris Lattner 392be58cad Add support for a union type in LLVM IR. Patch by Talin!
llvm-svn: 96011
2010-02-12 20:49:41 +00:00
Johnny Chen bdf1b9520c Add SWP (Swap) and SWPB (Swap Byte) for disassembly only.
llvm-svn: 96010
2010-02-12 20:48:24 +00:00
Johnny Chen cf20cbec49 Add CPS, MRS, MRSsys, MSR, MSRsys for disassembly only.
llvm-svn: 95999
2010-02-12 18:55:33 +00:00
Anton Korobeynikov c3c357006e Setup correct data layout to match gcc's expectations on mingw32.
llvm-svn: 95981
2010-02-12 15:28:56 +00:00
Anton Korobeynikov c9276dfe04 Cleanup stdcall / fastcall name mangling.
This should fix alot of problems we saw so far, e.g. PRs 5851 & 2936

llvm-svn: 95980
2010-02-12 15:28:40 +00:00
Chris Lattner f7477e599f add a bunch of mod/rm encoding types for fixed mod/rm bytes.
This will work better for the disassembler for modeling things
like lfence/monitor/vmcall etc.

llvm-svn: 95960
2010-02-12 02:06:33 +00:00
Chris Lattner 44ac89f517 revert r95949, it turns out that adding new prefixes is not a
great solution for the disassembler, we'll go with "plan b".

llvm-svn: 95957
2010-02-12 01:55:31 +00:00
Johnny Chen 905a2d7727 Added coprocessor Instructions CDP, CDP2, MCR, MCR2, MRC, MRC2, MCRR, MCRR2,
MRRC, MRRc2.  For disassembly only.

llvm-svn: 95955
2010-02-12 01:44:23 +00:00
Daniel Dunbar d7e9212e2d X86: Fix definition for RCL/RCR.*m? operations -- they were getting represented
with "tied memory operands", which is wrong.

llvm-svn: 95950
2010-02-12 01:22:03 +00:00
Chris Lattner 336f9abb45 add another bit of space for new kinds of instruction prefixes.
llvm-svn: 95949
2010-02-12 01:15:16 +00:00
Nate Begeman c780af6471 Add a missing pattern for movhps so that we get:
movq	(%ecx,%edx,2), %xmm2
movhps	(%ecx,%eax,2), %xmm2

rather than:

movq     (%eax, %edx, 2), %xmm2		
movq     (%eax, %ebx, 2), %xmm3		
movlhps  %xmm3, %xmm2			

Testcase forthcoming.

llvm-svn: 95948
2010-02-12 01:10:45 +00:00
Chris Lattner 1572e760bc fix the encodings of monitor and mwait, which were completely
busted in both encoders.  I'm not bothering to fix it in the
old one at this point.

llvm-svn: 95947
2010-02-12 01:06:22 +00:00
Chris Lattner b1913c4df9 enhance llvm-mc -show-inst to print the enum of an instruction, like so:
testb	%al, %al                ## <MCInst #2412 TEST8rr
                                        ##   <MCOperand Reg:2>
                                        ##   <MCOperand Reg:2>>
	jne	LBB1_7                  ## <MCInst #938 JNE_1
                                        ##   <MCOperand Expr:(LBB1_7)>>

llvm-svn: 95935
2010-02-11 22:57:32 +00:00
Chris Lattner 524138176d add a new MCInstPrinter::getOpcodeName interface, when it is
implemented, llvm-mc --show-inst now uses it to print the
instruction opcode as well as the number.

llvm-svn: 95929
2010-02-11 22:39:10 +00:00
Chris Lattner b8af65ed0b improve encoding information for branches. We now know they have
8 or 32-bit immediates, which allows the new encoder to handle
them.

llvm-svn: 95927
2010-02-11 21:45:31 +00:00
Chris Lattner ddeceae839 make getFixupKindInfo return a const reference, allowing
the tables to be const.  Teach MCCodeEmitter to handle
the target-indep kinds so that we don't crash on them.

llvm-svn: 95924
2010-02-11 21:27:18 +00:00
Chris Lattner 2a34015abc switch to target-indep fixups for 1/2/4/8 byte data.
llvm-svn: 95920
2010-02-11 21:17:54 +00:00
Johnny Chen af88c0a84d Added LDRT/LDRBT/STRT/STRBT for disassembly only.
llvm-svn: 95916
2010-02-11 20:31:08 +00:00
Chris Lattner 1f298326b0 unbreak the build.
llvm-svn: 95915
2010-02-11 19:52:11 +00:00
Chris Lattner 2b0a7a2592 refactor the conditional jump instructions in the .td file to
use a multipattern that generates both the 1-byte and 4-byte 
versions from the same defm

llvm-svn: 95901
2010-02-11 19:25:55 +00:00
Johnny Chen 3964059a16 Forgot to also check in this file for vcvt (floating-point <-> fixed-point, VFP).
Sorry!

llvm-svn: 95892
2010-02-11 18:47:03 +00:00
Johnny Chen 2588efd071 Added VCVT (between floating-point and fixed-point, VFP) for disassembly.
A8.6.297

llvm-svn: 95885
2010-02-11 18:17:16 +00:00
Johnny Chen f40b8e03fb Added BKPT/tBKPT (breakpoint) to the instruction table for disassembly purpose.
llvm-svn: 95884
2010-02-11 18:12:29 +00:00
Johnny Chen 9c13dfb5dd Add pseudo instruction TRAP for disassembly, which is encoded according to A5-21
as the "Permanently UNDEFINED" instruction.

llvm-svn: 95873
2010-02-11 17:14:31 +00:00
Chris Lattner fbf1f02fee dont' call getX86RegNum on X86::RIP, it doesn't like that. This
fixes the remaining x86-64 jit failures afaik.

llvm-svn: 95867
2010-02-11 08:45:56 +00:00
Chris Lattner 5a4ec879bf fix a really nasty bug I introduced in r95693: r12 (and r12d,
r12b, etc) also encodes to a R/M value of 4, which is just
as illegal as ESP/RSP for the non-sib version an address.

This fixes x86-64 jit miscompilations of a bunch of programs.

llvm-svn: 95866
2010-02-11 08:41:21 +00:00
Chris Lattner 6bb2463f85 Add and commonize encoder support for all immediates.
Stub out some dummy fixups to make things work.

We can now emit fixups like this:
	subl	$20, %esp               ## encoding: [0x83,0xec,A]
                                        ##   fixup A - offset: 2, value: 20, kind: fixup_1byte_imm

Emitting $20 as a single-byte fixup to be later resolved
by the assembler is ridiculous of course (vs just emitting
the byte) but this is a failure of the matcher, which 
should be producing an imm of 20, not an MCExpr of 20.

llvm-svn: 95860
2010-02-11 07:06:31 +00:00
Chris Lattner 167842f90b generalize EmitDisplacementField to work with any size
and rename it to EmitImmediate.

llvm-svn: 95859
2010-02-11 06:54:23 +00:00
Chris Lattner 3555993312 eliminate the dead IsPCRel argument.
llvm-svn: 95858
2010-02-11 06:51:36 +00:00
Chris Lattner 5a40e6c95c eliminate the dead "PCAdj" logic.
llvm-svn: 95857
2010-02-11 06:49:52 +00:00
Mon P Wang 5b77f0dac1 The previous fix of widening divides that trap was too fragile as it depends on custom
lowering and requires that certain types exist in ValueTypes.h.  Modified widening to
check if an op can trap and if so, the widening algorithm will apply only the op on
the defined elements.  It is safer to do this in widening because the optimizer can't
guarantee removing unused ops in some cases.

llvm-svn: 95823
2010-02-10 23:37:45 +00:00
Eli Friedman 4d4c6944e9 A few missed optimizations; the last one could have a significant impact on
code with lots of bitfields.

llvm-svn: 95809
2010-02-10 21:26:04 +00:00
Daniel Dunbar 3e0c9790f2 MC/X86 AsmMatcher: Fix a use after free spotted by d0k, and de-XFAIL
x86_32-encoding.s in on expectation of it passing.

llvm-svn: 95806
2010-02-10 21:19:28 +00:00
Johnny Chen c7e14704d0 Added NOP, DBG, SVC to the instruction table for disassembly purpose.
llvm-svn: 95784
2010-02-10 18:02:25 +00:00
Dan Gohman 4a618827de Fix "the the" and similar typos.
llvm-svn: 95781
2010-02-10 16:03:48 +00:00
Chris Lattner de03bd0ab4 emit some simple (and probably incorrect) fixups for symbolic
displacement values.

llvm-svn: 95773
2010-02-10 06:52:12 +00:00
Chris Lattner f58d0074d7 keep track of what the current byte being emitted is
throughout the X86 encoder.

llvm-svn: 95771
2010-02-10 06:41:02 +00:00
Chris Lattner a725d785a9 simplify displacement handling, emit displacements by-operand
even for the immediate case.  No functionality change.

llvm-svn: 95770
2010-02-10 06:30:00 +00:00
Daniel Dunbar 605474463f MC: Switch MCFixup to just hold an MCExpr pointer instead of index into the
MCInst it came from.

llvm-svn: 95767
2010-02-10 04:47:08 +00:00
Chris Lattner ff68a42121 print all the newlines at the end of instructions with
OutStreamer.AddBlankLine instead of textually.

llvm-svn: 95734
2010-02-10 00:36:00 +00:00
Kevin Enderby a7c1d6cfd1 Fix the encoding of the movntdqa X86 instruction. It was missing the 0x66
prefix which is part of the opcode encoding.

llvm-svn: 95729
2010-02-10 00:10:31 +00:00
Chris Lattner 482bf69bfe Add ability for MCInstPrinters to add comments for instructions.
Enhance the x86 backend to show the hex values of immediates in
comments when they are large.  For example:

        movl    $1072693248, 4(%esp)    ## imm = 0x3FF00000

llvm-svn: 95728
2010-02-10 00:10:18 +00:00
David Greene 509be1fe5e TableGen fragment refactoring.
Move some utility TableGen defs, classes, etc. into a common file so
they may be used my multiple pattern files.  We will use this for
the AVX specification to help with the transition from the current
SSE specification.

llvm-svn: 95727
2010-02-09 23:52:19 +00:00
Johnny Chen 1215c774f2 Add VBIF/VBIT for disassembly only.
A8.6.279

llvm-svn: 95713
2010-02-09 23:05:23 +00:00
Daniel Dunbar 0e42dc0dac MC/X86: Add a dummy implementation of MCFixup generation for hacky X86 MCCodeEmitter.
llvm-svn: 95709
2010-02-09 23:00:03 +00:00
Daniel Dunbar b311a6b3ae MC: First cut at MCFixup, for getting fixup/relocation information out of an MCCodeEmitter.
llvm-svn: 95708
2010-02-09 22:59:55 +00:00
Johnny Chen b618f66c5f Added VMRS/VMSR for disassembly only.
A8.6.335 & A8.6.336

llvm-svn: 95703
2010-02-09 22:35:38 +00:00
Chris Lattner 8aef06f8eb port encoder enhancements over to the new encoder.
llvm-svn: 95699
2010-02-09 21:57:34 +00:00
Chris Lattner 0c3b66cd87 fix X86 encoder to output [disp] only addresses with no SIB byte
in X86-32 mode.  This is still required in x86-64 mode to avoid
forming [disp+rip] encoding.  Rewrite the SIB byte decision logic
to be actually understandable.

llvm-svn: 95693
2010-02-09 21:47:19 +00:00
Chris Lattner 45d89644ae revert r95689: getX86RegNum(BaseReg) != N86::ESP is
a confusing idiom to check for ESP or RSP.

llvm-svn: 95690
2010-02-09 21:21:26 +00:00
Chris Lattner e464a4d815 simplify.
llvm-svn: 95689
2010-02-09 21:00:12 +00:00
Chris Lattner b06015aa69 move target-independent opcodes out of TargetInstrInfo
into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.

llvm-svn: 95687
2010-02-09 19:54:29 +00:00
Jim Grosbach f7279bd10f Radar 7417921
tMOVCCi pattern only valid for low registers, as the Thumb1 mov immediate to
register instruction only works with low registers. Allowing high registers
for the instruction resulted in the assembler choosing the wide (32-bit)
encoding for the mov, but LLVM though the instruction was only 16 bits wide,
so offset calculations for constant pools became incorrect, leading to
out of range constant pool entries.

llvm-svn: 95686
2010-02-09 19:51:37 +00:00
Johnny Chen 64e0ae8dd4 Added vcvtb/vcvtt (between half-precision and single-precision, VFP).
For disassembly only.

A8.6.300

llvm-svn: 95669
2010-02-09 17:21:56 +00:00
Chris Lattner f5f335da37 move PR3462 to here.
llvm-svn: 95650
2010-02-09 05:55:14 +00:00
Chris Lattner cf11e602a2 add a note from PR6194
llvm-svn: 95649
2010-02-09 05:45:29 +00:00
Chris Lattner d00faaa9c7 Implement x86 asm parsing support for %st and %st(4)
llvm-svn: 95634
2010-02-09 00:49:22 +00:00
Chris Lattner 60db0a6ba5 pass stringref by value instead of by const&
llvm-svn: 95627
2010-02-09 00:34:28 +00:00
Chris Lattner 187242b3ab move PR6212 to this file.
llvm-svn: 95624
2010-02-09 00:11:10 +00:00
Chris Lattner 08297ad15d this is done, tested by CodeGen/ARM/iabs.ll
llvm-svn: 95609
2010-02-08 23:48:10 +00:00
Jim Grosbach a570d05228 tighten up eh.setjmp sequence a bit.
llvm-svn: 95603
2010-02-08 23:22:00 +00:00
Chris Lattner d9d7186dc0 unify the paths for external symbols and global variables:
2 files changed, 48 insertions(+), 83 deletions(-)

llvm-svn: 95599
2010-02-08 23:03:41 +00:00
Chris Lattner 99777dd78f switch the rest of the "@ concatentation" logic in the X86
backend to use X86MCTargetExpr, simplifying a bunch of code.

llvm-svn: 95595
2010-02-08 22:52:47 +00:00
Sean Callanan 4d16049c61 Fixed the AT&T AsmLexer to report the proper strings
for register tokens.  Before, if it encountered
'%al,' it would report 'al,' as the token.  Now it
correctly reports '%al'.

llvm-svn: 95594
2010-02-08 22:50:23 +00:00
Chris Lattner b8479fb309 switch ELF @GOTOFF references to use X86MCTargetExpr.
llvm-svn: 95593
2010-02-08 22:33:55 +00:00
Chris Lattner b6b2164e28 add an x86 implementation of MCTargetExpr for
representing @GOT and friends.  Use it for
personality references as a first use.

llvm-svn: 95588
2010-02-08 22:09:08 +00:00
Johnny Chen 9e60686a83 Add VCVTR (between floating-point and integer, VFP) for disassembly purpose.
The 'R' suffix means the to-integer operations use the rounding mode specified
by the FPSCR, encoded as Inst{7} = 0.

A8.6.295

llvm-svn: 95584
2010-02-08 22:02:41 +00:00
Dan Gohman 3464a5b609 Rename the PerformTailCallOpt variable to GuaranteedTailCallOpt to reflect
its current purpose.

llvm-svn: 95564
2010-02-08 20:27:50 +00:00
Johnny Chen beb1238a85 Add VCMP (VFP floating-point compare without 'E' bit set) for disassembly purpose.
llvm-svn: 95560
2010-02-08 19:41:48 +00:00
Johnny Chen c7e606f132 Added VMOVRRS/VMOVSRR to ARMInstrVFP.td for disassembly purpose.
A8.6.331 VMOV (between two ARM core registers and two single-precision registers)

llvm-svn: 95548
2010-02-08 17:26:09 +00:00
Torok Edwin 6e29e9d262 Fix x86 JIT stub on MSVC.
Thanks to Kristaps Straupe for noticing the bug.

llvm-svn: 95537
2010-02-08 08:37:27 +00:00
Bruno Cardoso Lopes d59cddc098 Add suport for VASTART on Mips.
llvm-svn: 95506
2010-02-06 21:00:02 +00:00
Bruno Cardoso Lopes d6fff557db First step towards varargs support in Mips:
- o32 cc must pass all arguments in A0...A3 and stack regardless
if its type (but respect the alignment).
- Store all variable arguments back to the caller stack.

llvm-svn: 95500
2010-02-06 19:20:49 +00:00
Evan Cheng ea5c6be766 Run codegen dce pass for all targets at all optimization levels. Previously it's
only run for x86 with fastisel. I've found it being very effective in
eliminating some obvious dead code as result of formal parameter lowering
especially when tail call optimization eliminated the need for some of the loads
from fixed frame objects. It also shrinks a number of the tests. A couple of
tests no longer make sense and are now eliminated.

llvm-svn: 95493
2010-02-06 09:07:11 +00:00
Rafael Espindola 4536b9a904 Fix alignment on ppc linux. This fixes the build of crtend.o
llvm-svn: 95477
2010-02-06 03:32:21 +00:00