6f36a083ef
Revert 95130.
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llvm-svn: 95160
2010-02-02 23:55:14 +00:00
c1b0116ff1
Pass callsite return type to TargetLowering::LowerCall and use that to check sibcall eligibility.
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llvm-svn: 95130
2010-02-02 21:29:10 +00:00
67a69dd2ed
Eliminate target hook IsEligibleForTailCallOptimization.
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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
a6450df92a
zext / truncate is free on msp430. Inform codegen about this.
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llvm-svn: 93556
2010-01-15 21:19:43 +00:00
d8f320947f
Implement variable-width shifts.
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No testcase yet - it seems we're exposing generic codegen bugs.
llvm-svn: 91221
2009-12-12 18:55:37 +00:00
e27e028cdd
Lower setcc branchless, if this is profitable.
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Based on the patch by Brian Lucas!
llvm-svn: 91175
2009-12-11 23:01:29 +00:00
ff4ab51400
Add lowering of returnaddr and frameaddr intrinsics. Shamelessly stolen from x86 :)
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llvm-svn: 90740
2009-12-07 02:28:10 +00:00
b4be8ce537
Initial codegen support for MSP430 ISRs
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llvm-svn: 90739
2009-12-07 02:27:53 +00:00
d3c8319f48
Add some dummy support for post-incremented loads
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llvm-svn: 86385
2009-11-07 17:15:06 +00:00
270d0f986f
Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes.
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Not functionality change yet.
llvm-svn: 82273
2009-09-18 21:02:19 +00:00
68c5f477fa
Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson.
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llvm-svn: 80773
2009-09-02 08:44:58 +00:00
a0e01bec87
Add dummy inline asm handling for 'r' constraint. This fixes PR4778
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llvm-svn: 80085
2009-08-26 13:44:29 +00:00
f9bbcd1afd
Major calling convention code refactoring.
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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
512ff7353e
Update comments to make it clear that the function alignment is the Log2 of the
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bytes and not bytes.
llvm-svn: 74624
2009-07-01 18:50:55 +00:00
31ceb1bcba
Add an "alignment" field to the MachineFunction object. It makes more sense to
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have the alignment be calculated up front, and have the back-ends obey whatever
alignment is decided upon.
This allows for future work that would allow for precise no-op placement and the
like.
llvm-svn: 74564
2009-06-30 22:38:32 +00:00
47fcd72e24
Make handling of conditional stuff much more straightforward
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llvm-svn: 70767
2009-05-03 13:19:09 +00:00
29747e9c26
Custom lower SIGN_EXTEND
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llvm-svn: 70763
2009-05-03 13:17:49 +00:00
f3a6bc8562
Add 8bit shifts
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llvm-svn: 70759
2009-05-03 13:16:37 +00:00
61763b532a
Handle logical shift right (at least I hope so :) )
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llvm-svn: 70758
2009-05-03 13:16:17 +00:00
ba0e81d4b2
Properly handle ExternalSymbol's
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llvm-svn: 70752
2009-05-03 13:14:46 +00:00
a3f7a83ad8
Add left shift
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llvm-svn: 70747
2009-05-03 13:13:17 +00:00
b6321e15f7
Lower select with custom inserted and make condjumps generic
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llvm-svn: 70744
2009-05-03 13:12:23 +00:00
962720129d
Add first draft for conditions, conditional branches, etc
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llvm-svn: 70743
2009-05-03 13:12:06 +00:00
cfc97056e7
Add lowering for global address nodes. Not pretty efficient though.
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llvm-svn: 70730
2009-05-03 13:08:33 +00:00
5613510c81
Add CALL lowering.
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llvm-svn: 70727
2009-05-03 13:07:31 +00:00
b638fb10f5
Add pattern for OR
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llvm-svn: 70720
2009-05-03 13:05:00 +00:00
15a515b1af
Add dummy lowering for shifts
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llvm-svn: 70715
2009-05-03 13:03:33 +00:00
7bfc3ea2ee
Add proper ISD::RET lowering
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llvm-svn: 70703
2009-05-03 12:59:50 +00:00
3849be6ca1
Add first draft of MSP430 calling convention stuff and draft of ISD::FORMAL_ARGUMENTS node lowering.
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llvm-svn: 70702
2009-05-03 12:59:33 +00:00
101380015c
Dummy MSP430 backend
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llvm-svn: 70694
2009-05-03 12:57:15 +00:00
Evan Cheng