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66 Commits

Author SHA1 Message Date
Daniel Dunbar
fc7c76159c x86_64 ABI: Initial implementation of ABI compliant parameter passing. 
- Now only 27/500 failures on ABITest single argument tests; from
   350/500. :)
 - As with return types, a large percentage of these are likely to be
   gcc bugs, not yet reviewed.

Also, fix bug in handling of Ignore ABI type in argument lists.

llvm-svn: 63654
 2009-02-03 20:00:13 +00:00
Daniel Dunbar
2f219b0770 ABI handling: Implement coercion for argument types (in addition to 
return types).

llvm-svn: 63645
 2009-02-03 19:12:28 +00:00
Daniel Dunbar
32931eb21d Change ABIInfo to compute information for a full signature at a time 
(the main point of this restructing).

llvm-svn: 63619
 2009-02-03 06:51:18 +00:00
Daniel Dunbar
0136282a9c Remove ABIArgInfo::Default kind, ABI is now responsible for specifying 
acceptable kind with more precise semantics.

llvm-svn: 63617
 2009-02-03 06:30:17 +00:00
Daniel Dunbar
67dace890f Add ABIArgInfo::Direct kind, which passes arguments using whatever the 
native IRgen type is. This is like Default, but without any extra
semantics (like automatic tweaking of structures or void).

llvm-svn: 63615
 2009-02-03 06:17:37 +00:00
Daniel Dunbar
5a0acdc982 Add two FIXMEs. 
llvm-svn: 63613
 2009-02-03 06:02:10 +00:00
Daniel Dunbar
b52d077d8b Always use CGFunctionInfo to access ABI information. 
llvm-svn: 63612
 2009-02-03 05:59:18 +00:00
Daniel Dunbar
313321ea23 Move ABIArgInfo into CGFunctionInfo, computed on creation. 
- Still have to convert some consumers over.

llvm-svn: 63610
 2009-02-03 05:31:23 +00:00
Daniel Dunbar
6d6b0d309a Move ABIInfo/ABIArgInfo classes into ABIInfo.h 
llvm-svn: 63586
 2009-02-03 01:05:53 +00:00
Daniel Dunbar
e0be82956b Memoize CGFunctionInfo construction. 
llvm-svn: 63576
 2009-02-03 00:07:12 +00:00
Daniel Dunbar
3668cb2d3c Change CGFunctionInfo args iterator to not include the return type. 
llvm-svn: 63571
 2009-02-02 23:43:58 +00:00
Daniel Dunbar
bf8c24ad89 Thread CGFunctionInfo construction through CodeGenTypes. 
- Inefficient & leaks memory currently, will be cleaned up subsequently.

llvm-svn: 63567
 2009-02-02 23:23:47 +00:00
Daniel Dunbar
d931a87f90 More ABI API cleanup. 
- Lift CGFunctionInfo creation above ReturnTypeUsesSret and
   EmitFunction{Epi,Pro}log.

llvm-svn: 63553
 2009-02-02 22:03:45 +00:00
Daniel Dunbar
7633cbf005 ABI handling API changes. 
- Lift CGFunctionInfo creation up to callers of EmitCall.

 - Move isVariadic bit out of CGFunctionInfo, take as argument to
   GetFunctionType instead.

No functionality change.

llvm-svn: 63550
 2009-02-02 21:43:58 +00:00
Daniel Dunbar
f5589ac5a9 Shuffle some functions around, no functionality change. 
llvm-svn: 63538
 2009-02-02 19:06:38 +00:00
Daniel Dunbar
50f520171c Add FIXME. 
llvm-svn: 63531
 2009-02-02 18:06:39 +00:00
Daniel Dunbar
5df2b0baaa Remove unused overload of GetFunctionType. 
llvm-svn: 63472
 2009-01-31 03:05:44 +00:00
Daniel Dunbar
a8b7f6bb13 Initialize CGFunctionInfo isVariadic bit correctly. 
llvm-svn: 63471
 2009-01-31 02:54:56 +00:00
Daniel Dunbar
a37249c663 Err, unbreak my previous "no functionality change commit", will fix properly later. 
llvm-svn: 63467
 2009-01-31 02:20:43 +00:00
Daniel Dunbar
3cd20632ff Kill off CGCallInfo, always use CGFunctionInfo for encapsulating 
function/call info.

llvm-svn: 63466
 2009-01-31 02:19:00 +00:00
Daniel Dunbar
34aa3ca8c4 x86_64 ABI: Retool classification to compute lo & hi classifications 
in terms of where the type resides in the containing object. This is a
more clear embodiement of the spec & fixes a merging issue with
unions. Down to 3/1000 failures.

llvm-svn: 63455
 2009-01-31 00:06:58 +00:00
Daniel Dunbar
6a046c64d9 x86_64 ABI: Fix more thinkos, straddling computation for complex was 
computing in bytes not bits. We are now down to 22/1000 failures on
the return types tests, and 18 of those are gcc bugs I believe.

llvm-svn: 63438
 2009-01-30 22:40:15 +00:00
Daniel Dunbar
c35dca92f5 x86_64 ABI: Fix thinko in prev commit, 64-bit vectors should have SSE 
class, not integer.

llvm-svn: 63426
 2009-01-30 21:50:20 +00:00
Daniel Dunbar
4d22eaeb44 x86_64 ABI: Pass <1 x double> in memory. This is arguably wrong, but 
matches gcc 4.2 (not llvm-gcc).

llvm-svn: 63413
 2009-01-30 19:38:39 +00:00
Daniel Dunbar
7da8d0b321 Remove testing -use-x86_64-abi option; current implementation is 
robust enough for general use.

llvm-svn: 63406
 2009-01-30 18:47:53 +00:00
Daniel Dunbar
890c6b5520 x86_64 ABI: Split small vectors which cross an eightbyte boundary. Down to 33/500 return type failures. 
llvm-svn: 63404
 2009-01-30 18:40:10 +00:00
Daniel Dunbar
f5222fa0ad x86_64 ABI: Implement classification for arrays. 
- This brings us down to an 8% failure rate on the first 500 return
   types tests (from 12%).

llvm-svn: 63383
 2009-01-30 08:09:32 +00:00
Daniel Dunbar
62dc51c395 Use uint64_t not unsigned for type sizes/offsets. 
llvm-svn: 63352
 2009-01-30 00:47:38 +00:00
Daniel Dunbar
5537b8bc6c x86_64 ABI: Handle fields / complex components which straddle 
eightbyte boundaries.
 - Getting harder to test now that we handle cases gcc & llvm-gcc get
   wrong ( { _Complex char; _Complex int; } is a good example). :)

llvm-svn: 63305
 2009-01-29 09:42:07 +00:00
Daniel Dunbar
7cd7d47c5c x86_64 ABI: Tweak merging algorithm so that we always bail early when 
we see a Memory classification.

llvm-svn: 63295
 2009-01-29 08:35:40 +00:00
Daniel Dunbar
012468aa7f ABI: When emitting calls which return an ignored argument, make sure 
to still return an RValue of the correct type.

llvm-svn: 63294
 2009-01-29 08:24:57 +00:00
Daniel Dunbar
17aa941534 x86_64 ABI: Implement classification for records. 
- This is my best initial guess at what the "spec" means, although it is not
   particularly clear on a number of points. Will refine through testing.

llvm-svn: 63292
 2009-01-29 08:13:58 +00:00
Daniel Dunbar
227e1a77ff x86_64: Support cases which map to returning multiple values in LLVM 
(e.g., _Complex double -> { double, double } return).

llvm-svn: 63285
 2009-01-29 07:36:07 +00:00
Daniel Dunbar
8e6652affc x86_64 ABI: Classify _Complex ints as integer. 
llvm-svn: 63283
 2009-01-29 07:22:20 +00:00
Daniel Dunbar
d678d3d970 x86_64: Classify __m64 and __m128 "correctly". 
- gcc appears to be classifying <1 x double> as INTEGER which is
   odd. Will investigate later.

llvm-svn: 63086
 2009-01-27 02:01:34 +00:00
Daniel Dunbar
0f4aa3cbb1 Implement support for coercion to wider types during ABI handling. 
- Code quality is poor, but simple.

llvm-svn: 63083
 2009-01-27 01:36:03 +00:00
Daniel Dunbar
94a6f25738 Add Ignore ABIArgInfo kind, for handling void & empty structures. 
llvm-svn: 63039
 2009-01-26 21:26:08 +00:00
Daniel Dunbar
3334a44501 Start filling in x86_64 ABI implementation. 
- No functionality change, moved behind -use-x86_64-abi option until
   it becomes non-experimental.

llvm-svn: 62915
 2009-01-24 08:32:22 +00:00
Daniel Dunbar
707f6436e0 Add dummy X86_64 ABIInfo implementation. 
llvm-svn: 62268
 2009-01-15 18:18:40 +00:00
Douglas Gregor
ffca3a21f1 Provide a new kind of iterator, the specific_decl_iterator, that 
filters the decls seen by decl_iterator with two criteria: the dynamic
type of the declaration and a run-time predicate described by a member
function. This simplifies EnumDecl, RecordDecl, and ObjCContainerDecl
considerably. It has no measurable performance impact.

llvm-svn: 61994
 2009-01-09 17:18:27 +00:00
Daniel Dunbar
9ae0afdcd6 Allow ABI to use StructRet even for scalar values. 
- Update comment to reflect fact that StructRet is now supported for
   any type (modulo LLVM support).

 - No functionality change, no scalar types currently use this
   feature.

llvm-svn: 61192
 2008-12-18 04:52:14 +00:00
Anders Carlsson
32ef8ceaa1 Handle returning complex types that get coerced. Fixes PR3131 
llvm-svn: 60058
 2008-11-25 22:21:48 +00:00
Chris Lattner
1cbaacc4a0 Migrate some stuff from NamedDecl::getName() to 
NamedDecl::getNameAsString() to make it more explicit.

llvm-svn: 59937
 2008-11-24 04:00:27 +00:00
Anders Carlsson
312045115e Fix silly bug spotted by Daniel Dunbar 
llvm-svn: 59358
 2008-11-15 06:35:36 +00:00
Anders Carlsson
d0e4f2b106 Handle complex return values. 
llvm-svn: 59345
 2008-11-15 01:29:05 +00:00
Daniel Dunbar
d9eff3d4e4 Lift out ABIInfo abstract base class. 
- Currently still lives in CGCall.cpp but is intended to be the
   target specific place for hooking ABI information.
 - Select ABIInfo to use based on Target's prefix and pointer width.

llvm-svn: 57445
 2008-10-13 17:02:26 +00:00
Anders Carlsson
b83162840f Implement support for the const and pure attributes. 
llvm-svn: 57142
 2008-10-05 23:32:53 +00:00
Devang Patel
597e70876e Now Attributes are divided in three groups 
- return attributes - inreg, zext and sext
- parameter attributes
- function attributes - nounwind, readonly, readnone, noreturn

Return attributes use 0 as the index.
Function attributes use ~0U as the index.

llvm-svn: 56705
 2008-09-26 22:53:57 +00:00
Devang Patel
322300d1c2 Large mechanical patch. 
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

llvm-svn: 56623
 2008-09-25 21:02:23 +00:00
Devang Patel
e2aef07b2d Adjust whitespaces. 
llvm-svn: 56538
 2008-09-24 01:03:00 +00:00