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130 Commits

Author SHA1 Message Date
Chris Lattner
6229d0acb8 update a bunch of code to use the MachinePointerInfo version of getStore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-21 18:41:36 +00:00
Evan Cheng
4f6b4674be Teach bottom up pre-ra scheduler to track register pressure. Work in progress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108991 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 06:09:07 +00:00
Dan Gohman
c9403659a9 Split the SDValue out of OutputArg so that SelectionDAG-independent 
code can do calling-convention queries. This obviates OutputArgReg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107786 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-07 15:54:55 +00:00
Devang Patel
0d881dabc1 Propagate debug loc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107710 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 22:08:15 +00:00
Dan Gohman
14152b480d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 20:24:04 +00:00
Dan Gohman
258c58cc62 Revert r107655. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107668 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 15:49:48 +00:00
Dan Gohman
b81c771c0d Fix a bunch of custom-inserter functions to handle the case where 
the pseudo instruction is not at the end of the block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107655 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 15:18:19 +00:00
Dan Gohman
e368b460a2 Eliminate unnecessary uses of getZExtValue(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:22:04 +00:00
Dan Gohman
af1d8ca44a Get rid of the EdgeMapping map. Instead, just check for BasicBlock 
changes before doing phi lowering for switches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102809 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-01 00:01:06 +00:00
Dan Gohman
d858e90f03 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101635 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-17 15:26:15 +00:00
Dan Gohman
1e93df6f0b Move per-function state out of TargetLowering subclasses and into 
MachineFunctionInfo subclasses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101634 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-17 14:41:14 +00:00
Dan Gohman
46510a73e9 Add const qualifiers to CodeGen's use of LLVM IR constructs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-15 01:51:59 +00:00
Sanjiv Gupta
d49baefaad Fix memory leaks for external symbol name strings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100601 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 03:36:01 +00:00
Bill Wendling
46ada19645 Remove dead parameter passing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97536 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-02 01:55:18 +00:00
Sanjiv Gupta
2b0070211e Reapply things reverted back in 97220, with the fixed test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97228 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-26 17:59:28 +00:00
Chandler Carruth
727cf62123 Revert r97211 and r97213 to get the build green again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97220 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-26 08:43:09 +00:00
Sanjiv Gupta
917733eca0 Before converting an operand to mem, check if it is legal to do so. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97211 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-26 07:27:35 +00:00
Evan Cheng
014bf215c3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96255 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-15 19:41:07 +00:00
David Greene
74a6a7990c Remove an assumption of default arguments. This is in anticipation of a 
change to SelectionDAG build APIs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96235 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-15 16:56:34 +00:00
Evan Cheng
022d9e1cef Revert 95130. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95160 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 23:55:14 +00:00
Evan Cheng
942619695f Pass callsite return type to TargetLowering::LowerCall and use that to check sibcall eligibility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95130 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:29:10 +00:00
Evan Cheng
0c439eb2c8 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94626 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 00:07:07 +00:00
Sanjiv Gupta
223497e1ef Extern declaration for unordered.f32 libcall was not being emitted. Fixed that. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92242 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-29 03:24:34 +00:00
Sanjiv Gupta
917283a418 Fixed llc crash for zext (i1 -> i8) loads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92201 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 04:53:24 +00:00
Sanjiv Gupta
8f17a36d31 Allow targets to specify the return type of libcalls that are generated for floating point comparisons, rather than hard-coding them as i32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92199 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 02:40:33 +00:00
Sanjiv Gupta
76d2f9a4db Reapply 91904. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91996 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-23 11:19:09 +00:00
Sanjiv Gupta
7fb0ead091 Added missing patterns for subtract instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91995 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-23 10:56:02 +00:00
Sanjiv Gupta
6d48855a56 Reverting back 91904. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91993 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-23 09:46:01 +00:00
Sanjiv Gupta
66500208a5 While converting one of the operands to a memory operand, we need to check if it is Legal and does not result into a cyclic dep. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91904 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-22 14:25:37 +00:00
Bill Wendling
3ea3c24619 Add more plumbing. This time in the LowerArguments and "get" functions which 
return partial registers. This affected the back-end lowering code some.

Also patch up some places I missed before in the "get" functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91880 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-22 02:10:19 +00:00
Daniel Dunbar
d4f84dadda Remove unused variable (noticed by clang++). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91780 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-19 18:58:49 +00:00
David Greene
3f2bf85d14 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..


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87022 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 20:49:22 +00:00
Sanjiv Gupta
753ec15d5f Re-apply 84180 with the fixed test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84195 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-15 19:26:25 +00:00
Daniel Dunbar
1ead150c92 Revert "Complete Rewrite of AsmPrinter, TargetObjectFile based on new 
PIC16Section class", it breaks globals.ll.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84184 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-15 15:02:14 +00:00
Sanjiv Gupta
8da373cf62 Complete Rewrite of AsmPrinter, TargetObjectFile based on new PIC16Section class 
derived from MCSection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84180 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-15 10:10:43 +00:00
Evan Cheng
ce31910eae 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82311 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-19 09:51:03 +00:00
Evan Cheng
fb2e752e41 Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes. 
Not functionality change yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82273 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-18 21:02:19 +00:00
Sandeep Patel
65c3c8f323 Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80773 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-02 08:44:58 +00:00
Dan Gohman
6ff5de4b1d Add comments detailing a known bug, so that people writing other 
backends don't use it as an example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80105 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-26 16:06:11 +00:00
Chris Lattner
35a27c8a0d revert r79562 + r79563 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79690 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-21 23:12:15 +00:00
Sanjiv Gupta
eb01abaad1 Implement support for ISRs. 
Clone functions that are shared between the Main thread and Interrupt thread.
CallSites are changed in AsmPrinter currently. A better solution would have been to modify the legalizer (SoftenFloat) to allow targets to change the name of libcalls for float operations. But that currently breaks other targets.
Also, cloing of automatic variables is done AsmPrinter, a better approach would
be to use the ValueMap in CloneFunction itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79562 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-20 19:28:24 +00:00
Owen Anderson
23b9b19b1a Add contexts to some of the MVT APIs. No functionality change yet, just the infrastructure work needed to get the contexts to where they need to be first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78759 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-12 00:36:31 +00:00
Owen Anderson
825b72b057 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78713 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-11 20:47:22 +00:00
Sanjiv Gupta
a418628d30 Fixed more problems caused by 78142. 
Passing of indirect arguments starts after return value on the callee's frame.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78635 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-11 01:51:55 +00:00
Owen Anderson
e50ed30282 Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78610 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-10 22:56:29 +00:00
Owen Anderson
77547befdc Start moving TargetLowering away from using full MVTs and towards SimpleValueType, which will simplify the privatization of IntegerType in the future. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78584 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-10 18:56:59 +00:00
Dan Gohman
22f7d57dde Fix a bug in the PIC16 backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78211 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-05 16:46:43 +00:00
Dan Gohman
98ca4f2a32 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-05 01:29:28 +00:00
Sanjiv Gupta
ada097a853 Legalize i64 store operations generated by inst-combine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78082 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-04 17:59:16 +00:00
Daniel Dunbar
7145e9be64 Avoid compiler warning (in -Asserts mode) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78070 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-04 16:46:12 +00:00