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31 Commits

Author SHA1 Message Date
Dan Gohman
5fa04f2707 Delete useless trailing semicolons. 
llvm-svn: 92740
 2010-01-05 17:55:26 +00:00
Richard Osborne
fc2d5141a4 Add XCore support for indirectbr / blockaddress. 
llvm-svn: 89273
 2009-11-18 23:20:42 +00:00
Richard Osborne
8748f55236 Add XCore support for arbitrary-sized aggregate returns. 
llvm-svn: 88802
 2009-11-14 19:33:35 +00:00
Richard Osborne
1719935e3f Add some peepholes for signed comparisons using ashr X, X, 32. 
llvm-svn: 83549
 2009-10-08 15:38:17 +00:00
Dan Gohman
142428ce64 Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81293
 2009-09-09 00:09:15 +00:00
Richard Osborne
a3a49aeee0 Add support for mergeable sections back into the XCore backend. 
llvm-svn: 79368
 2009-08-18 21:14:31 +00:00
Richard Osborne
84785e0714 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
358842178f 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
ee52642cd3 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
179bf3bdc2 Add extra SEXT pattern. 
llvm-svn: 77920
 2009-08-02 22:45:24 +00:00
Chris Lattner
75b7692e66 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
19591063fc 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
ee0ad3d09b Combine an unaligned store of unaligned load into a memmove. 
llvm-svn: 75908
 2009-07-16 12:50:48 +00:00
Richard Osborne
0d65748f8f 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
eb8036be44 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
bdd120fbdb 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
589cb93199 Fix XCoreTargetLowering::isLegalAddressingMode to handle non simple VTs. 
llvm-svn: 75788
 2009-07-15 15:46:56 +00:00
Dan Gohman
5f6f8101d5 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
b6fe72e457 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
13a0dd0288 testcase for PR3898 
llvm-svn: 69473
 2009-04-18 20:49:22 +00:00
Rafael Espindola
0aba6c9435 Add the private linkage. 
llvm-svn: 62279
 2009-01-15 20:18:42 +00:00
Richard Osborne
ce265d8cf9 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
12b88f2fae 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
e74ae9dbb7 Add support for ISD::TRAP to the XCore backend 
llvm-svn: 60479
 2008-12-03 10:59:16 +00:00
Duncan Sands
3f0dbb4ead Reapply r59464, this time using the correct type 
when softening FNEG.

llvm-svn: 59513
 2008-11-18 09:15:03 +00:00
Bill Wendling
33cf8ff597 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
b13af5a714 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
2eb278eb4d 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
c2b2d5e6cf [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
8f86bb4d20 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
f4fb6eaf71 Add basic test for XCore backend 
llvm-svn: 58841
 2008-11-07 11:24:12 +00:00