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118 Commits

Author SHA1 Message Date
Richard Osborne 9a827b30ab Add XCore intrinsics for initializing / starting / synchronizing threads. 
llvm-svn: 128633
 2011-03-31 15:13:13 +00:00
Richard Osborne 6120962d7d Add XCore intrinsic for setpsc. 
llvm-svn: 127821
 2011-03-17 18:42:05 +00:00
Richard Osborne c871eff3f5 Add XCore intrinsics for setclk, setrdy. 
llvm-svn: 127761
 2011-03-16 21:56:00 +00:00
Richard Osborne d4346f2388 Add checkevent intrinsic to check if any resources owned by the current thread 
can event.

llvm-svn: 127741
 2011-03-16 18:34:00 +00:00
Richard Osborne 5f1a26ea39 On the XCore the scavenging slot should be closest to the SP. 
llvm-svn: 127680
 2011-03-15 15:10:11 +00:00
Richard Osborne 3a68eb150b Add XCore intrinsics for getps, setps, setsr and clrsr. 
llvm-svn: 127678
 2011-03-15 13:45:47 +00:00
Benjamin Kramer 1885d21700 Fix mistyped CHECK lines. 
llvm-svn: 127366
 2011-03-09 22:07:31 +00:00
Joerg Sonnenberger 62f759791a Be nice to Xcore and the XMOS assembler and avoid quoting section names 
that contain only letters, digits and the characters "_" and ".".

llvm-svn: 127028
 2011-03-04 20:03:14 +00:00
Joerg Sonnenberger 852ab890b5 Bug#9033: For the ELF assembler output, always quote the section name. 
llvm-svn: 126963
 2011-03-03 22:31:08 +00:00
Richard Osborne 42f52e737e Add XCore intrinsic for eeu instruction. 
llvm-svn: 126384
 2011-02-24 13:39:18 +00:00
Richard Osborne bfa5cc0e08 Add XCore intrinsic for clre instruction. 
llvm-svn: 126322
 2011-02-23 18:52:05 +00:00
Richard Osborne 4995b05f56 Add llvm.xcore.waitevent intrinsic. The effect of this intrinsic is to enable 
events on the thread and wait until a resource is ready to event. The vector
of the resource that is ready is returned.

llvm-svn: 126320
 2011-02-23 18:35:59 +00:00
Richard Osborne 2c610aa3ed Add XCore intrinsic for the setv instruction. 
llvm-svn: 126315
 2011-02-23 16:46:37 +00:00
Richard Osborne aab96995f6 Add XCore intrinsic for settw instruction. 
llvm-svn: 126313
 2011-02-23 14:45:03 +00:00
Richard Osborne 1ae65c7cb8 Add XCore intrinsics for various instructions on ports. 
llvm-svn: 126132
 2011-02-21 18:23:30 +00:00
Richard Osborne d9dde78c27 Add intrinsic for setc instruction on the XCore. 
llvm-svn: 125186
 2011-02-09 13:22:12 +00:00
Richard Osborne a31b9c2f7c Add XCore intrinsics for resource instructions. 
llvm-svn: 124794
 2011-02-03 13:14:25 +00:00
Richard Osborne 8607a67d37 Add support for trampolines on the XCore. 
llvm-svn: 124722
 2011-02-02 14:57:41 +00:00
Richard Osborne 272e084bca Fix bug where ReduceLoadWidth was creating illegal ZEXTLOAD instructions. 
llvm-svn: 124587
 2011-01-31 17:41:44 +00:00
Rafael Espindola ec517cdf24 Update tests. 
llvm-svn: 123591
 2011-01-16 18:02:57 +00:00
Devang Patel c24048a718 If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG message instead of creating DBG_VALUE for undefined value in reg0. 
llvm-svn: 121059
 2010-12-06 22:39:26 +00:00
Evan Cheng f3e9a48584 Enable machine sinking critical edge splitting. e.g. 
define double @foo(double %x, double %y, i1 %c) nounwind {
  %a = fdiv double %x, 3.2
  %z = select i1 %c, double %a, double %y
  ret double %z
}

Was:
_foo:
        divsd   LCPI0_0(%rip), %xmm0
        testb   $1, %dil
        jne     LBB0_2
        movaps  %xmm1, %xmm0
LBB0_2:
        ret

Now:
_foo:
        testb   $1, %dil
        je      LBB0_2
        divsd   LCPI0_0(%rip), %xmm0
        ret
LBB0_2:
        movaps  %xmm1, %xmm0
        ret

This avoids the divsd when early exit is taken.
rdar://8454886

llvm-svn: 114372
 2010-09-20 22:52:00 +00:00
Dan Gohman 4fee6f3bdd Start function numbering at 0. 
llvm-svn: 101638
 2010-04-17 16:29:15 +00:00
Dale Johannesen f118f9788b Split big test into multiple directories to cater to 
those who don't build all targets.

llvm-svn: 100688
 2010-04-07 20:43:35 +00:00
Chris Lattner 9efbbcbe45 fix AsmPrinter::GetBlockAddressSymbol to always return a unique 
label instead of trying to form one based on the BB name (which
causes collisions if the name is empty).  This fixes PR6608

llvm-svn: 98495
 2010-03-14 17:53:23 +00:00
Richard Osborne 4780109254 Add dag combine to simplify lmul(x, 0, a, b) 
llvm-svn: 98258
 2010-03-11 16:26:35 +00:00
Richard Osborne 54a2c32670 Handle MVT::i64 type in DAG combine for ISD::ADD. Fold 64 bit 
expression add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if all
operands are zero extended.

llvm-svn: 98168
 2010-03-10 18:12:27 +00:00
Richard Osborne 1a396d53ed Fold add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if the intermediate 
results are unused elsewhere.

llvm-svn: 98157
 2010-03-10 16:19:31 +00:00
Richard Osborne f57aea3d38 Prefer LMUL to MACCU as LMUL has no tied operands. 
llvm-svn: 98153
 2010-03-10 13:27:10 +00:00
Richard Osborne 0012bc1e41 Custom lower (S|U)MUL_LOHI -> MACC(S|U) 
llvm-svn: 98152
 2010-03-10 13:20:07 +00:00
Richard Osborne 54dfa01adc Lower add (mul a, b), c into MACCU / MACCS nodes which translate 
directly to the maccu / maccs instructions. We handle this in
ExpandADDSUB since after type legalisation it is messy to
recognise these operations.

llvm-svn: 98150
 2010-03-10 11:41:08 +00:00
Richard Osborne e35eabdd69 Convert test to FileCheck. 
llvm-svn: 98148
 2010-03-10 11:24:03 +00:00
Richard Osborne c420c4cb4e In cases where the carry / borrow unused converted ladd / lsub 
to an add or a sub.

llvm-svn: 98059
 2010-03-09 16:34:25 +00:00
Richard Osborne f4e76cf44d Add DAG combine for ladd / lsub. 
llvm-svn: 98057
 2010-03-09 16:07:47 +00:00
Richard Osborne 333300e0df Fix XCoreTargetLowering::isLegalAddressingMode() to handle VoidTy. 
Previously LoopStrengthReduce would sometimes be unable to find
a legal formula, causing an assertion failure.

llvm-svn: 97226
 2010-02-26 16:44:51 +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 cc9a6f0580 convert the last 3 targets to use EmitFunctionBody() now that 
it has before/end body hooks.

 lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp |   49 ++-----------
 lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp   |   87 ++++++------------------
 lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp |   56 +++------------
 test/CodeGen/XCore/ashr.ll                      |    2 
 4 files changed, 48 insertions(+), 146 deletions(-)

llvm-svn: 94741
 2010-01-28 06:22:43 +00:00
Dan Gohman fb4193625a Delete useless trailing semicolons. 
llvm-svn: 92740
 2010-01-05 17:55:26 +00:00
Richard Osborne 3bd09434a6 Add XCore support for indirectbr / blockaddress. 
llvm-svn: 89273
 2009-11-18 23:20:42 +00:00
Richard Osborne d5f2745965 Add XCore support for arbitrary-sized aggregate returns. 
llvm-svn: 88802
 2009-11-14 19:33:35 +00:00
Richard Osborne 4e13316bf9 Add some peepholes for signed comparisons using ashr X, X, 32. 
llvm-svn: 83549
 2009-10-08 15:38:17 +00:00
Dan Gohman c8054d90fb Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81293
 2009-09-09 00:09:15 +00:00
Richard Osborne 2349fb4d45 Add support for mergeable sections back into the XCore backend. 
llvm-svn: 79368
 2009-08-18 21:14:31 +00:00
Richard Osborne 934d61648b Put data with relocations in the same sections as data without relocations. 
llvm-svn: 79351
 2009-08-18 17:58:17 +00:00
Richard Osborne 94a2c1acae Update getSectionForConstant() to to allow mergable sections to be nulled out 
if not supported by the ELF subtarget.

llvm-svn: 79249
 2009-08-17 16:37:11 +00:00
Chris Lattner 93980d68e4 use XCore-specific section with xcore specific cp/dp flags to restore 
support for globals going into the appropriate sections with the flags.

This hopefully finishes unbreaking the previous behavior that I broke before.

llvm-svn: 79079
 2009-08-15 06:09:35 +00:00
Richard Osborne bbb772ace9 Add extra SEXT pattern. 
llvm-svn: 77920
 2009-08-02 22:45:24 +00:00
Chris Lattner 4d2c0f9008 switch off of 'Section' onto MCSection. We're not properly using 
MCSection subclasses yet, but this is a step in the right direction.

llvm-svn: 77708
 2009-07-31 18:48:30 +00:00
Richard Osborne fc39e417a8 Add tests for handling of globals and tls on the XCore. These currently fail 
but pass when run against r76652.

llvm-svn: 76923
 2009-07-24 00:38:20 +00:00
Richard Osborne 0cceec520c Combine an unaligned store of unaligned load into a memmove. 
llvm-svn: 75908
 2009-07-16 12:50:48 +00:00
Richard Osborne bfdc557c8a Expand unaligned 32 bit loads from an address which is a constant 
offset from a 32 bit aligned base as follows:

  ldw low, base[offset >> 2]
  ldw high, base[(offset >> 2) + 1]
  shr low_shifted, low, (offset & 0x3) * 8
  shl high_shifted, high, 32 - (offset & 0x3) * 8
  or result, low_shifted, high_shifted

Expand 32 bit loads / stores with 16 bit alignment into two 16 bit
loads / stores.

llvm-svn: 75902
 2009-07-16 10:42:35 +00:00
Richard Osborne 25b33cb035 Custom lower unaligned 32 bit stores and loads into libcalls. This is 
a big code size win since before they were expanding to upto 16
instructions.

llvm-svn: 75901
 2009-07-16 10:21:18 +00:00
Richard Osborne a8edd048c2 Fix pattern for LD16S_3r, add basic tests to check load / store instructions 
are being properly selected.

llvm-svn: 75797
 2009-07-15 17:06:59 +00:00
Richard Osborne 57489b0658 Fix XCoreTargetLowering::isLegalAddressingMode to handle non simple VTs. 
llvm-svn: 75788
 2009-07-15 15:46:56 +00:00
Dan Gohman a5b9645c4b Split the Add, Sub, and Mul instruction opcodes into separate 
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt

llvm-svn: 72897
 2009-06-04 22:49:04 +00:00
Eli Friedman 9030c35eb4 Fix for PR4235: to build a floating-point value from integer parts, 
build an integer and cast that to a float.  This fixes a crash 
caused by trying to split an f32 into two f16's.

This changes the behavior in test/CodeGen/XCore/fneg.ll because that 
testcase now triggers a DAGCombine which converts the fneg into an integer
operation.  If someone is interested, it's probably possible to tweak 
the test to generate an actual fneg.

llvm-svn: 72162
 2009-05-20 06:02:09 +00:00
Chris Lattner 1e7da23983 testcase for PR3898 
llvm-svn: 69473
 2009-04-18 20:49:22 +00:00
Rafael Espindola 6de96a1b5d Add the private linkage. 
llvm-svn: 62279
 2009-01-15 20:18:42 +00:00
Richard Osborne 40119780a8 Don't fold address calculations which use negative offsets into 
the ADDRspii addressing mode.

llvm-svn: 62258
 2009-01-15 11:32:30 +00:00
Richard Osborne 4359325ba8 Add pseudo instructions to the XCore for (load|store|load address) of a 
frame index. eliminateFrameIndex will replace these instructions with
(LDWSP|STWSP|LDAWSP) or (LDW|STW|LDAWF) if a frame pointer is in use.

This fixes PR 3324. Previously we used LDWSP, STWSP, LDAWSP before frame
pointer elimination. However since they were marked as implicitly using
SP they could not be rematerialised.

llvm-svn: 62238
 2009-01-14 18:26:46 +00:00
Richard Osborne feece7edab Add support for ISD::TRAP to the XCore backend 
llvm-svn: 60479
 2008-12-03 10:59:16 +00:00
Duncan Sands 1315f80ea8 Reapply r59464, this time using the correct type 
when softening FNEG.

llvm-svn: 59513
 2008-11-18 09:15:03 +00:00
Bill Wendling e0d5e67c98 Revert r59464. It was causing this failure: 
Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll
Failed with signal(SIGABRT) at line 1
while running:  llvm-as < /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll |  llc -march=xcore > fneg.ll.tmp1.s
Assertion failed: (VT.isFloatingPoint() && "Cannot create integer FP constant!"), function getConstantFP, file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/SelectionDAG/SelectionDAG.cpp, line 913.
0   llc                                 0x0092115c _ZN4llvm3sys18RemoveFileOnSignalERKNS0_4PathEPSs + 844
1   libSystem.B.dylib                   0x9217809b _sigtramp + 43
2   ???                                 0xffffffff 0x0 + 4294967295
3   libSystem.B.dylib                   0x921f0ec2 raise + 26
4   libSystem.B.dylib                   0x9220047f abort + 73
5   libSystem.B.dylib                   0x921f2063 __assert_rtn + 101
6   llc                                 0x005a5b0a _ZN4llvm12SelectionDAG13getConmake[1]: *** [check-local] Error 1
make: *** [check] Error 2

llvm-svn: 59487
 2008-11-18 01:49:24 +00:00
Duncan Sands f046b50ecd Add soft float support for a bunch more operations. Original 
patch by Richard Osborne, tweaked and extended by your humble
servant.

llvm-svn: 59464
 2008-11-17 20:52:38 +00:00
Richard Osborne 6751b4a604 Don't produce ADDC/ADDE when expanding SHL unless they are legal 
for the target. This fixes PR3080.

llvm-svn: 59450
 2008-11-17 17:34:31 +00:00
Richard Osborne 5fe5933909 [XCore] Fix expansion of 64 bit add/sub. Don't custom expand 
these operations if ladd/lsub are not available on the current
subtarget.

llvm-svn: 59305
 2008-11-14 15:59:19 +00:00
Richard Osborne d16b37efae Add XCore intrinsics for getid (returns thread id) and bitrev (reverses 
bits in a word).

llvm-svn: 59296
 2008-11-14 10:12:16 +00:00
Richard Osborne 86d68a492a Add basic test for XCore backend 
llvm-svn: 58841
 2008-11-07 11:24:12 +00:00