Dan Gohman
e1c4ad399a
Simplify this code. The FastISel class has its own TD member.
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llvm-svn: 56311
2008-09-18 18:26:43 +00:00
Dan Gohman
5fbd0e95f3
FastISel: For calls, prefer using the callee's address as a constant
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over having it in a register. And wait until after checking type
legality before requesting that the callee address be placed in a
register. Also, fix support for calls with void return type.
This speeds up fast-isel isel time by about 15% and reduces
instruction counts by about 3% overall on certain testcases. It also
changes many indirect calls to direct calls.
llvm-svn: 56292
2008-09-17 21:18:49 +00:00
Owen Anderson
743d45821a
Fix a bug in ANY_EXTEND handling that was breaking 403.gcc on X86-64 in fast isel.
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llvm-svn: 56117
2008-09-11 19:44:55 +00:00
Owen Anderson
139baa5f74
If ISD::ANY_EXTEND fails, try ISD::ZERO_EXTEND and ISD::SIGN_EXTEND before giving up. This fixes 445.gobmk on
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X86-64 in fast isel.
llvm-svn: 56088
2008-09-11 02:41:37 +00:00
Dan Gohman
9eca554828
X86FastISel support for double->float and float->double casts.
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llvm-svn: 56070
2008-09-10 21:02:08 +00:00
Dan Gohman
3ccdde5eef
Add X86FastISel support for static allocas, and refences
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to static allocas. As part of this change, refactor the
address mode code for laods and stores.
llvm-svn: 56066
2008-09-10 20:11:02 +00:00
Evan Cheng
dc011a1b10
Fix a constant lowering bug. Now we can do load and store instructions with funky getelementptr embedded in the address operand.
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llvm-svn: 55975
2008-09-09 01:26:59 +00:00
Evan Cheng
fc78ac5bbe
Handle calls which produce i1 results: promote to i8 but and it with 1 to get the low bit.
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llvm-svn: 55925
2008-09-08 17:15:42 +00:00
Dan Gohman
331ed48bc7
Fix copy+pastos in comments.
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llvm-svn: 55918
2008-09-08 16:31:35 +00:00
Evan Cheng
66ef6517ad
Add support to extend call operands when needed. Enable x86 fastisel call support.
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llvm-svn: 55891
2008-09-08 06:35:17 +00:00
Evan Cheng
f016785579
Initial fastisel call support for C, Fast, and X86_FastCall calling conventions. It's meant to handle "simple" calls, i.e. no byval, structret, etc. It doesn't support multi-result returns either.
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Not yet turned on, it needs to support sext / zext of arguments and result.
llvm-svn: 55882
2008-09-07 09:09:33 +00:00
Evan Cheng
6690ccd573
Handle x86 truncate to i8 with target hook for now.
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llvm-svn: 55877
2008-09-07 08:47:42 +00:00
Owen Anderson
ef6d356c39
Fix constant pool loads, and remove broken versions of addConstantPoolReference.
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llvm-svn: 55868
2008-09-06 01:11:01 +00:00
Dan Gohman
930d0be24c
Fix X86FastISel's shift and select code to reject illegal types.
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llvm-svn: 55857
2008-09-05 21:27:34 +00:00
Dan Gohman
28e33e92e4
Fix the opcodes used by X86FastISel for shifts and conditional moves.
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llvm-svn: 55855
2008-09-05 21:13:04 +00:00
Evan Cheng
5fd19547f4
Factor out code that emits load and store instructions.
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llvm-svn: 55854
2008-09-05 21:00:03 +00:00
Owen Anderson
7866b1c4c3
Rename method.
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llvm-svn: 55853
2008-09-05 20:49:33 +00:00
Dan Gohman
0be4bca4b6
X86FastISel support for shifts and conditional moves.
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llvm-svn: 55844
2008-09-05 18:30:08 +00:00
Dan Gohman
29cba19a2a
Check a comparion's operand type for legality before
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expanding its operands.
llvm-svn: 55820
2008-09-05 01:33:56 +00:00
Dan Gohman
121baa1723
Fix X86FastISel code for comparisons and conditional branches
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to check the result of getRegForValue before using it, and
to check for illegal operand types.
llvm-svn: 55819
2008-09-05 01:15:35 +00:00
Dan Gohman
783f38e056
X86FastISel support for conditional branches.
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llvm-svn: 55816
2008-09-05 01:06:14 +00:00
Owen Anderson
6d5b72d45a
Add initial support for selecting constant materializations that require constant
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pool loads on X86 in fast isel. This isn't actually used yet.
llvm-svn: 55814
2008-09-05 00:06:23 +00:00
Dan Gohman
88c3de638e
X86FastISel support for ICmpInst and FCmpInst.
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llvm-svn: 55811
2008-09-04 23:26:51 +00:00
Owen Anderson
cd3ee9198d
Fix the ordering of operands to the store (inverted relative to LLVM IR), and fix the testcase.
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llvm-svn: 55777
2008-09-04 16:48:33 +00:00
Owen Anderson
35485dbae3
Add a first attempt at implementing stores for X86 fast isel using target hooks.
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Dan or Evan, please review.
llvm-svn: 55764
2008-09-04 07:08:58 +00:00
Evan Cheng
9c728a557d
Load from GV stub should be locally CSE'd.
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llvm-svn: 55763
2008-09-04 06:18:33 +00:00
Dan Gohman
18cc2a26df
Create HandlePHINodesInSuccessorBlocksFast, a version of
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HandlePHINodesInSuccessorBlocks that works FastISel-style. This
allows PHI nodes to be updated correctly while using FastISel.
This also involves some code reorganization; ValueMap and
MBBMap are now members of the FastISel class, so they needn't
be passed around explicitly anymore. Also, SelectInstructions
is changed to SelectInstruction, and only does one instruction
at a time.
llvm-svn: 55746
2008-09-03 23:12:08 +00:00
Evan Cheng
942d55dd92
Add X86 target hook to implement load (even from GlobalAddress).
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llvm-svn: 55693
2008-09-03 06:44:39 +00:00
Evan Cheng
4cef3f6ce1
Unbreak fast isel.
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llvm-svn: 55685
2008-09-03 01:04:47 +00:00
Evan Cheng
43c7084625
Let tblgen only generate fastisel routines, not the class definition. This makes it easier for targets to define its own fastisel class.
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llvm-svn: 55679
2008-09-03 00:03:49 +00:00
Owen Anderson
3aa3841da2
Add initial support for fast isel of instructions that have inputs pinned to physical registers.
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llvm-svn: 55545
2008-08-29 17:45:56 +00:00
Dan Gohman
c7b8401b77
Add a target callback for FastISel.
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llvm-svn: 55512
2008-08-28 23:21:34 +00:00
Dan Gohman
a398d11527
Factor out the predicate check code from DAGISelEmitter.cpp
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and use it in FastISelEmitter.cpp, and make FastISel
subtarget aware. Among other things, this lets it work
properly on x86 targets that don't have SSE, where it
successfully selects x87 instructions.
llvm-svn: 55156
2008-08-22 00:20:26 +00:00
Dan Gohman
b1ba73eeed
Instantiate FastISel for X86.
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llvm-svn: 55011
2008-08-19 21:45:35 +00:00
