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24770 Commits

Author SHA1 Message Date
Chris Lattner 6353807fdc Add a note about a note 
llvm-svn: 28355
 2006-05-17 19:02:25 +00:00
Chris Lattner eb755fc1b3 Make PPC call lowering more aggressive, making the isel matching code simple 
enough to be autogenerated.

llvm-svn: 28354
 2006-05-17 19:00:46 +00:00
Evan Cheng 19aaaca293 Another typo. Pointed out by Nate Begeman. 
llvm-svn: 28353
 2006-05-17 18:22:14 +00:00
Evan Cheng 751cd7653d Fixed a LowerCallTo and LowerArguments bug. They were introducing illegal 
VBIT_VECTOR nodes. There were some confusion about the semantics of
getPackedTypeBreakdown(). e.g. for <4 x f32> it returns 1 and v4f32, not 4,
and f32.

llvm-svn: 28352
 2006-05-17 18:16:39 +00:00
Evan Cheng 6dcec44fec Fix an obvious bug in getPackedTypeBreakdown. Return 1 if type is legal. 
llvm-svn: 28351
 2006-05-17 18:10:06 +00:00
Evan Cheng 163bdaba24 Fix a mis-leading comment. 
llvm-svn: 28350
 2006-05-17 18:08:20 +00:00
Chris Lattner 2e266807c3 Add a CloneModule call that exposes the mapping of values from the old module 
to the new module.  Patch provided by Nick Lewycky!

llvm-svn: 28349
 2006-05-17 18:05:35 +00:00
Chris Lattner 62f1b83c0e When we legalize target nodes, do not use getNode to create a new node, 
use UpdateNodeOperands to just update the operands!  This is important because
getNode will allocate a new node if the node returns a flag and this breaks
assumptions in the legalizer that you can legalize some things multiple times
and get exactly the same results.

This latent bug was exposed by my ppc patch last night, and this fixes
gsm/toast.

llvm-svn: 28348
 2006-05-17 18:00:08 +00:00
Chris Lattner a1cec0106a Add an assertion, avoid some unneeded work for each call. No functionality 
change.

llvm-svn: 28347
 2006-05-17 17:55:45 +00:00
Chris Lattner b1e9e37c58 Switch PPC over to a call-selection model where the lowering code creates 
the copyto/fromregs instead of making the PPCISD::CALL selection code create
them.  This vastly simplifies the selection code, and moves the ABI handling
parts into one place.

llvm-svn: 28346
 2006-05-17 06:01:33 +00:00
Chris Lattner f897d2f274 add an external symbol testcase 
llvm-svn: 28345
 2006-05-17 04:20:13 +00:00
Chris Lattner 174db05199 new test for various forms of calls 
llvm-svn: 28344
 2006-05-17 03:57:31 +00:00
Chris Lattner 5a37460533 test for support to pass/return vectors to calls. 
llvm-svn: 28343
 2006-05-17 00:18:23 +00:00
Chris Lattner b7552a88d6 3 changes, 2 of which are cleanup one of which changes codegen: 
1. Rearrange code a bit so that the special case doesn't require indenting lots
   of code.
2. Add comments describing PPC calling convention.
3. Only round up to 56-bytes of stack space for an outgoing call if the callee
   is varargs.  This saves a bit of stack space.

llvm-svn: 28342
 2006-05-17 00:15:40 +00:00
Chris Lattner f058f5aef1 implement passing/returning vector regs to calls, at least non-varargs calls. 
llvm-svn: 28341
 2006-05-16 23:54:25 +00:00
Chris Lattner b77ba73a29 Add support for calls that pass and return legal vectors. 
llvm-svn: 28340
 2006-05-16 23:39:44 +00:00
Chris Lattner aa40ec1b32 Instead of implementing LowerCallTo directly, let the default impl produce an 
ISD::CALL node, then custom lower that.  This means that we only have to handle
LEGAL call operands/results, not every possible type.  This allows us to
simplify the call code, shrinking it by about 1/3.

llvm-svn: 28339
 2006-05-16 22:56:08 +00:00
Chris Lattner aaa23d953f Add a new ISD::CALL node, make the default impl of TargetLowering::LowerCallTo 
produce it.

llvm-svn: 28338
 2006-05-16 22:53:20 +00:00
Chris Lattner e33580e5b4 Add a new CALL node. 
llvm-svn: 28337
 2006-05-16 22:52:27 +00:00
Chris Lattner 84f9f380f2 There is now a default impl of this method 
llvm-svn: 28336
 2006-05-16 22:52:11 +00:00
Chris Lattner 26e2fcd8b1 Simplify the argument counting logic by only incrementing the index. 
llvm-svn: 28335
 2006-05-16 18:58:15 +00:00
Chris Lattner 76c47b50e7 Simplify the dead argument handling code. 
llvm-svn: 28334
 2006-05-16 18:54:32 +00:00
Chris Lattner 318f0d2122 Vector args passed in registers don't reserve stack space. 
llvm-svn: 28333
 2006-05-16 18:51:52 +00:00
Chris Lattner f4d08dd0d3 Another testcase that shouldn't need vrsave twiddling 
llvm-svn: 28332
 2006-05-16 18:23:55 +00:00
Chris Lattner 4302e8fb67 Switch the PPC backend over to using FORMAL_ARGUMENTS for formal argument 
handling.  This makes the lower argument code significantly simpler (we
only need to handle legal argument types).

Incidentally, this also implements support for vector argument registers,
so long as they are not on the stack.

llvm-svn: 28331
 2006-05-16 18:18:50 +00:00
Andrew Lenharth 20eb2ce871 this should be 128 I think 
llvm-svn: 28330
 2006-05-16 17:45:23 +00:00
Andrew Lenharth 1dc9ec5874 Move this code to a common place 
llvm-svn: 28329
 2006-05-16 17:42:15 +00:00
Chris Lattner a1f0b95ce4 Remove this xfail-d test, which doesn't make any sense 
llvm-svn: 28328
 2006-05-16 17:22:42 +00:00
Chris Lattner c7df70db57 Implement the custom lowering hook right, returning values for all of the 
arguments at once.

llvm-svn: 28327
 2006-05-16 17:14:26 +00:00
Chris Lattner 7b8b8bbbf9 Fix a bug I introduced yesterday, which broke functions with *no* arguments. 
llvm-svn: 28326
 2006-05-16 17:08:35 +00:00
Reid Spencer 40f1b1321d Make sure to default ${prefix} to /usr/local if the user didn't specify it. 
This assists with getting around configure's late binding values so that
our LLVM variables don't end up with a "NONE" prefix.

llvm-svn: 28325
 2006-05-16 08:53:32 +00:00
Evan Cheng 9fee442e63 X86 integer register classes naming changes. Make them consistent with FP, vector classes. 
llvm-svn: 28324
 2006-05-16 07:21:53 +00:00
Evan Cheng d985d66781 Allow patterns to refer to physical registers that belong to multiple 
register classes.

llvm-svn: 28323
 2006-05-16 07:05:30 +00:00
Reid Spencer 540c1b95f1 Make sure that $(CXX.Flags) is passed to the linker so that the same options 
with which source is compiled are used when linking. This matters when a
project is using the LLVM makefiles and overrides CXXFLAGS to specify new
flags to use.

llvm-svn: 28322
 2006-05-16 06:51:02 +00:00
Chris Lattner aa10fb7ebe Make this print the right start pointer 
llvm-svn: 28321
 2006-05-16 06:45:50 +00:00
Chris Lattner 3d82699605 Add a chain to FORMAL_ARGUMENTS. This is a minimal port of the X86 backend, 
it doesn't currently use/maintain the chain properly.  Also, make the
X86ISelLowering.cpp file 80-col clean.

llvm-svn: 28320
 2006-05-16 06:45:34 +00:00
Chris Lattner 0f89bbd6cc Add a chain to FORMAL_ARGUMENTS. 
llvm-svn: 28319
 2006-05-16 06:43:59 +00:00
Vladimir Prus 788db2c812 Replace "../whatever.td" with "whatever.td", so that out-of-tree backends 
can just add lib/Target to TableGen includes.

llvm-svn: 28318
 2006-05-16 06:39:36 +00:00
Reid Spencer 1f54156a01 For PR778: 
Improve doxygenification of this header file.

llvm-svn: 28317
 2006-05-16 06:27:31 +00:00
Reid Spencer 1053658517 When linking, make sure the project libraries are linked before the LLVM 
libraries. This ensures that the project's libraries (which most likely
depend on LLVM libraries) come first on the command line and can thus be
resolved by the LLVM libraries that appear later.

llvm-svn: 28316
 2006-05-16 06:25:14 +00:00
Chris Lattner 957cb6733a Move function-live-in-handling code from the sdisel code to the scheduler. 
This code should be emitted after legalize, so it can't be in sdisel.

Note that the EmitFunctionEntryCode hook should be updated to operate on the
DAG.  The X86 backend is the only one currently using this hook.

llvm-svn: 28315
 2006-05-16 06:10:58 +00:00
Chris Lattner 52d0c78de8 Print the vreg that livein physregs are live in 
llvm-svn: 28314
 2006-05-16 05:55:30 +00:00
Chris Lattner 5f0edfb849 Legalize FORMAL_ARGUMENTS nodes correctly, we don't want to legalize them once 
for each argument.

llvm-svn: 28313
 2006-05-16 05:49:56 +00:00
Vladimir Prus 1f01aa0f28 Add my homepage, as a test that commit access works 
llvm-svn: 28312
 2006-05-16 05:36:15 +00:00
Chris Lattner d2ca9abf57 Fit in 80 cols 
llvm-svn: 28311
 2006-05-16 04:20:24 +00:00
Rafael Espindola 4abf33f56e add an abort after every assert(0) 
llvm-svn: 28310
 2006-05-15 22:34:39 +00:00
Reid Spencer 26bb7c467f For PR777: 
Add an additional catch block to ensure that this function can't throw any
exceptions, even one's we're not expecting.

llvm-svn: 28309
 2006-05-15 22:12:42 +00:00
Reid Spencer 3d01718c70 Upgrade in preparation for doxygen 1.4.4. The config file format changed, 
there are new/different css styles to support, and the footer was woefully
out of date.

llvm-svn: 28308
 2006-05-15 21:36:13 +00:00
Chris Lattner fce45ffcd6 Improve comment, patch provided by Vladimir Prus! 
llvm-svn: 28307
 2006-05-15 18:35:02 +00:00
Chris Lattner 30b868d697 Update dox, patch by Vladimir Prus! 
llvm-svn: 28306
 2006-05-15 17:26:46 +00:00