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c768525273
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89 Commits

Author SHA1 Message Date
Dan Gohman
c768525273 Split the SDValue out of OutputArg so that SelectionDAG-independent 
code can do calling-convention queries. This obviates OutputArgReg.

llvm-svn: 107786
 2010-07-07 15:54:55 +00:00
Devang Patel
7ab104353b Propagate debug loc. 
llvm-svn: 107710
 2010-07-06 22:08:15 +00:00
Dan Gohman
808f334f79 Reapply r107655 with fixes; insert the pseudo instruction into 
the block before calling the expansion hook. And don't
put EFLAGS in a mbb's live-in list twice.

llvm-svn: 107691
 2010-07-06 20:24:04 +00:00
Dan Gohman
4d264f7e51 Revert r107655. 
llvm-svn: 107668
 2010-07-06 15:49:48 +00:00
Dan Gohman
6a73079aba Fix a bunch of custom-inserter functions to handle the case where 
the pseudo instruction is not at the end of the block.

llvm-svn: 107655
 2010-07-06 15:18:19 +00:00
Evan Cheng
47f3a2db40 Remove isSS argument from CreateFixedObject. Fixed objects cannot be spill slots so it's always false. 
llvm-svn: 107550
 2010-07-03 00:40:23 +00:00
Evan Cheng
241d2c434e Implement @llvm.returnaddress. rdar://8015977. 
llvm-svn: 104421
 2010-05-22 01:47:14 +00:00
Evan Cheng
46e08acfa5 Code refactoring: pull SchedPreference enum from TargetLowering.h to TargetMachine.h and put it in its own namespace. 
llvm-svn: 104147
 2010-05-19 20:19:50 +00:00
Anton Korobeynikov
9b724bd446 Implement indirect branches on MSP430 
llvm-svn: 102835
 2010-05-01 12:04:32 +00:00
Dan Gohman
68f04d06c8 Get rid of the EdgeMapping map. Instead, just check for BasicBlock 
changes before doing phi lowering for switches.

llvm-svn: 102809
 2010-05-01 00:01:06 +00:00
Dan Gohman
a0f855157e Use const qualifiers with TargetLowering. This eliminates several 
const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.

llvm-svn: 101635
 2010-04-17 15:26:15 +00:00
Chris Lattner
80b41881bc rename llvm::llvm_report_error -> llvm::report_fatal_error 
llvm-svn: 100709
 2010-04-07 22:58:41 +00:00
Anton Korobeynikov
fe0d6453ec 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
Anton Korobeynikov
ef1862e256 Move TLOF implementations to libCodegen to resolve layering violation. 
llvm-svn: 96288
 2010-02-15 22:37:53 +00:00
David Greene
725287f422 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
Duncan Sands
2acaf3609c 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
Evan Cheng
9057fea7ef Revert 95130. 
llvm-svn: 95160
 2010-02-02 23:55:14 +00:00
Evan Cheng
48375fbf4f Pass callsite return type to TargetLowering::LowerCall and use that to check sibcall eligibility. 
llvm-svn: 95130
 2010-02-02 21:29:10 +00:00
Evan Cheng
237629e476 Eliminate target hook IsEligibleForTailCallOptimization. 
Target independent isel should always pass along the "tail call" property. Change
target hook LowerCall's parameter "isTailCall" into a refernce. If the target
decides it's impossible to honor the tail call request, it should set isTailCall
to false to make target independent isel happy.

llvm-svn: 94626
 2010-01-27 00:07:07 +00:00
Anton Korobeynikov
8d5197ab8a zext / truncate is free on msp430. Inform codegen about this. 
llvm-svn: 93556
 2010-01-15 21:19:43 +00:00
Anton Korobeynikov
719dd1465f Enable bit tests and setcc stuff. 
llvm-svn: 93552
 2010-01-15 21:18:18 +00:00
Anton Korobeynikov
aaed919671 Add micro-optimization which allows us to fold imm into cmp. This allows us to save 1 word (sometimes) and reduce register pressure. 
llvm-svn: 93551
 2010-01-15 21:18:02 +00:00
Anton Korobeynikov
fb1954f28d Fix cmp emission on msp430: we definitely should turn stuff like 
"icmp lhs, rhs" into "cmp rhs, lhs". This should fix PR5979.

llvm-svn: 93496
 2010-01-15 01:29:49 +00:00
Anton Korobeynikov
5eb86c0b47 Remove pseudo-MI in custom inserter. 
llvm-svn: 93467
 2010-01-14 22:09:11 +00:00
Anton Korobeynikov
5cd169e17e Implement variable-width shifts. 
No testcase yet - it seems we're exposing generic codegen bugs.

llvm-svn: 91221
 2009-12-12 18:55:37 +00:00
Anton Korobeynikov
724c82337f Lower setcc branchless, if this is profitable. 
Based on the patch by Brian Lucas!

llvm-svn: 91175
 2009-12-11 23:01:29 +00:00
Anton Korobeynikov
615499bd84 Some pretty-printing 
llvm-svn: 90742
 2009-12-07 02:28:41 +00:00
Anton Korobeynikov
d01ed4146b Add lowering of returnaddr and frameaddr intrinsics. Shamelessly stolen from x86 :) 
llvm-svn: 90740
 2009-12-07 02:28:10 +00:00
Anton Korobeynikov
71b92ae4e0 Initial codegen support for MSP430 ISRs 
llvm-svn: 90739
 2009-12-07 02:27:53 +00:00
Anton Korobeynikov
02fa40119e Add ability to select hw multiplier mode and select appropriate libcalls. 
llvm-svn: 90737
 2009-12-07 02:27:08 +00:00
Anton Korobeynikov
5511c0260f Minor optimization: when doing eq/ne comparions and RHS is a constant - swap operands, this will allow us to fold imm into comparison. 
llvm-svn: 89574
 2009-11-22 01:14:08 +00:00
Anton Korobeynikov
44886c9a90 Use 2-byte alignment for functions. 4 bytes are clear overkill here. 
llvm-svn: 89572
 2009-11-22 01:13:39 +00:00
David Greene
58e7c6145b Add a bool flag to StackObjects telling whether they reference spill 
slots.  The AsmPrinter will use this information to determine whether to
print a spill/reload comment.

Remove default argument values.  It's too easy to pass a wrong argument
value when multiple arguments have default values.  Make everything
explicit to trap bugs early.

Update all targets to adhere to the new interfaces..

llvm-svn: 87022
 2009-11-12 20:49:22 +00:00
Anton Korobeynikov
123d792160 First try of the post-inc operands handling... Not fully worked, though :( 
llvm-svn: 86386
 2009-11-07 17:15:25 +00:00
Anton Korobeynikov
9dc741f523 Add some dummy support for post-incremented loads 
llvm-svn: 86385
 2009-11-07 17:15:06 +00:00
Anton Korobeynikov
0a13189111 Add 8 bit libcalls and make use of them for msp430 
llvm-svn: 86384
 2009-11-07 17:14:39 +00:00
Anton Korobeynikov
c9ed87ea9a Cosmetic changes, no functionality changes 
llvm-svn: 84773
 2009-10-21 19:16:49 +00:00
Evan Cheng
d941e8b23a Revert 84315 for now. Re-thinking the patch. 
llvm-svn: 84321
 2009-10-17 07:53:04 +00:00
Evan Cheng
12dd96e2f8 Rename getFixedStack to getStackObject. The stack objects represented are not 
necessarily fixed. Only those will negative frame indices are "fixed."

llvm-svn: 84315
 2009-10-17 06:22:26 +00:00
Evan Cheng
7714c8412d Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks. 
llvm-svn: 82311
 2009-09-19 09:51:03 +00:00
Evan Cheng
7cb9c456e5 Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes. 
Not functionality change yet.

llvm-svn: 82273
 2009-09-18 21:02:19 +00:00
Sandeep Patel
9c4e094e2a Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson. 
llvm-svn: 80773
 2009-09-02 08:44:58 +00:00
Anton Korobeynikov
6ee3a73ba1 Add dummy inline asm handling for 'r' constraint. This fixes PR4778 
llvm-svn: 80085
 2009-08-26 13:44:29 +00:00
Anton Korobeynikov
b388728ba7 Provide dynamic_stackalloc lowering for MSP430. 
This fixes PR4769

llvm-svn: 80001
 2009-08-25 17:00:23 +00:00
Chris Lattner
bd73307361 eliminate uses of cerr() 
llvm-svn: 79834
 2009-08-23 07:05:07 +00:00
Owen Anderson
48f2f0ae72 Split EVT into MVT and EVT, the former representing _just_ a primitive type, while 
the latter is capable of representing either a primitive or an extended type.

llvm-svn: 78713
 2009-08-11 20:47:22 +00:00
Owen Anderson
b4bce99769 Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type. 
llvm-svn: 78610
 2009-08-10 22:56:29 +00:00
Dan Gohman
5d566d918b Major calling convention code refactoring. 
Instead of awkwardly encoding calling-convention information with ISD::CALL,
ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering
provides three virtual functions for targets to override:
LowerFormalArguments, LowerCall, and LowerRet, which replace the custom
lowering done on the special nodes. They provide the same information, but
in a more immediately usable format.

This also reworks much of the target-independent tail call logic. The
decision of whether or not to perform a tail call is now cleanly split
between target-independent portions, and the target dependent portion
in IsEligibleForTailCallOptimization.

This also synchronizes all in-tree targets, to help enable future
refactoring and feature work.

llvm-svn: 78142
 2009-08-05 01:29:28 +00:00
Chris Lattner
55461787cc Rip all of the global variable lowering logic out of TargetAsmInfo. Since 
it is highly specific to the object file that will be generated in the end,
this introduces a new TargetLoweringObjectFile interface that is implemented
for each of ELF/MachO/COFF/Alpha/PIC16 and XCore.

Though still is still a brutal and ugly refactoring, this is a major step
towards goodness.

This patch also:
1. fixes a bunch of dangling pointer problems in the PIC16 backend.
2. disables the TargetLowering copy ctor which PIC16 was accidentally using.
3. gets us closer to xcore having its own crazy target section flags and
   pic16 not having to shadow sections with its own objects.
4. fixes wierdness where ELF targets would set CStringSection but not
   CStringSection_.  Factor the code better.
5. fixes some bugs in string lowering on ELF targets.

llvm-svn: 77294
 2009-07-28 03:13:23 +00:00
Owen Anderson
cc287b28c9 Get rid of the Pass+Context magic. 
llvm-svn: 76702
 2009-07-22 00:24:57 +00:00