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293 Commits

Author SHA1 Message Date
Anders Carlsson
1749083e2e Fill in the return value slot in CGExprAgg::VisitCallExpr. This takes us halfway towards fixing PR5824. 
llvm-svn: 92142
 2009-12-24 20:40:36 +00:00
Anders Carlsson
61a401caec Pass ReturnValueSlot to EmitCall. No functionality change yet. 
llvm-svn: 92138
 2009-12-24 19:25:24 +00:00
Nuno Lopes
7251327d75 implement PR5274: mark 'restrict' parameters as noalias 
llvm-svn: 90778
 2009-12-07 18:30:06 +00:00
Eli Friedman
4b1942cb8b Make functions returning a struct indirectly evaluate the returned struct 
directly into the sret pointer. This is an optimization in C, but is required
for correctness in C++ for classes with a non-trivial copy constructor.

llvm-svn: 90526
 2009-12-04 02:43:40 +00:00
Anders Carlsson
82ba57c8f0 Add VTT parameter to base ctors/dtors with virtual bases. (They aren't used yet). 
llvm-svn: 89835
 2009-11-25 03:15:49 +00:00
Anders Carlsson
6445773279 It is common for vtables to contain pointers to functions that have either incomplete return types or incomplete argument types. 
Handle this by returning the llvm::OpaqueType for those cases, which CodeGenModule::GetOrCreateLLVMFunction knows about, and treats as being an "incomplete function".

llvm-svn: 89736
 2009-11-24 05:08:52 +00:00
Anders Carlsson
0d82fa66a5 The ssp and sspreq function attributes should only be applied to function definitions, not declarations or calls. 
llvm-svn: 88915
 2009-11-16 16:56:03 +00:00
Chandler Carruth
bc55fe26c6 Move CompileOptions -> CodeGenOptions, and sink it into the CodeGen library. 
This resolves the layering violation where CodeGen depended on Frontend.

llvm-svn: 86998
 2009-11-12 17:24:48 +00:00
Daniel Dunbar
c369d73405 Set OptimizeForSize LLVM function attribute with -Os. 
llvm-svn: 85278
 2009-10-27 19:48:08 +00:00
Daniel Dunbar
b5aacc282c Twinify CodeGenFunction::CreateTempAlloca 
llvm-svn: 84456
 2009-10-19 01:21:05 +00:00
Benjamin Kramer
dde0fee82e Use new predicates for some type equality tests. 
llvm-svn: 83303
 2009-10-05 13:47:21 +00:00
Anders Carlsson
2ee3c011d9 Implement code generation of member function pointer calls. Fixes PR5121. 
llvm-svn: 83271
 2009-10-03 19:43:08 +00:00
John McCall
8ccfcb51ee Refactor the representation of qualifiers to bring ExtQualType out of the 
Type hierarchy.  Demote 'volatile' to extended-qualifier status.  Audit our
use of qualifiers and fix a few places that weren't dealing with qualifiers
quite right;  many more remain.

llvm-svn: 82705
 2009-09-24 19:53:00 +00:00
John McCall
9dd450bb78 Change all the Type::getAsFoo() methods to specializations of Type::getAs(). 
Several of the existing methods were identical to their respective
specializations, and so have been removed entirely.  Several more 'leaf'
optimizations were introduced.

The getAsFoo() methods which imposed extra conditions, like
getAsObjCInterfacePointerType(), have been left in place.

llvm-svn: 82501
 2009-09-21 23:43:11 +00:00
Anders Carlsson
20759ad54c x86-64 ABI: If a type is a C++ record with either a non-trivial destructor or a non-trivial copy constructor, it should be passed in a pointer. Daniel, plz review. 
llvm-svn: 82050
 2009-09-16 15:53:40 +00:00
Daniel Dunbar
0ef3479cb7 Change CodeGenModule::ConstructTypeAttributes to return the calling convention 
to use, and allow the ABI implementation to override the calling convention.

llvm-svn: 81593
 2009-09-12 00:59:20 +00:00
Daniel Dunbar
bbaeca4fef Set the calling convention based on the CGFunctionInfo. 
llvm-svn: 81582
 2009-09-11 22:25:00 +00:00
Daniel Dunbar
7feafc70d9 Add CallingConvention argument to CGFunctionInfo. 
- Currently unused.

llvm-svn: 81581
 2009-09-11 22:24:53 +00:00
Mike Stump
11289f4280 Remove tabs, and whitespace cleanups. 
llvm-svn: 81346
 2009-09-09 15:08:12 +00:00
Owen Anderson
41a750271b Update for LLVM API change. 
llvm-svn: 78946
 2009-08-13 21:57:51 +00:00
Ryan Flynn
1f1fdc070e map previously ignored __attribute((malloc)) to noalias attribute of llvm function's return 
llvm-svn: 78541
 2009-08-09 20:07:29 +00:00
Anders Carlsson
b8be93fc92 Add support for global initializers. 
llvm-svn: 78515
 2009-08-08 23:24:23 +00:00
Daniel Dunbar
4074b93184 Use Twine instead of utostr 
llvm-svn: 77848
 2009-08-02 01:43:57 +00:00
Owen Anderson
0b75f23b94 Update for LLVM API change. 
llvm-svn: 77722
 2009-07-31 20:28:54 +00:00
John McCall
caa1945306 Allow functions to be marked "implicit return zero" and so mark main(). 
Codegen by initializing the return value with its LLVM type's null value.

llvm-svn: 77288
 2009-07-28 01:00:58 +00:00
Owen Anderson
170229f68d Update for LLVM API change, and contextify a bunch of related stuff. 
llvm-svn: 75705
 2009-07-14 23:10:40 +00:00
Argyrios Kyrtzidis
cfbfe78e9e De-ASTContext-ify DeclContext. 
Remove ASTContext parameter from DeclContext's methods. This change cascaded down to other Decl's methods and changes to call sites started "escalating".
Timings using pre-tokenized "cocoa.h" showed only a ~1% increase in time run between and after this commit.

llvm-svn: 74506
 2009-06-30 02:36:12 +00:00
Argyrios Kyrtzidis
b4b64ca752 Remove the ASTContext parameter from the attribute-related methods of Decl. 
The implementations of these methods can Use Decl::getASTContext() to get the ASTContext.

This commit touches a lot of files since call sites for these methods are everywhere.
I used pre-tokenized "carbon.h" and "cocoa.h" headers to do some timings, and there was no real time difference between before the commit and after it.

llvm-svn: 74501
 2009-06-30 02:34:44 +00:00
Bill Wendling
1835107ed0 Make the StackProtector bitfield use enums instead of obscure numbers. 
llvm-svn: 74414
 2009-06-28 23:01:01 +00:00
Bill Wendling
d63bbadbef Add stack protector support to clang. This generates the 'ssp' and 'sspreq' 
function attributes. There are predefined macros that are defined when stack
protectors are used: __SSP__=1 with -fstack-protector and __SSP_ALL__=2 with
-fstack-protector-all.

llvm-svn: 74405
 2009-06-28 07:36:13 +00:00
Chris Lattner
4c8da96ea9 fix PR4423. 
llvm-svn: 73938
 2009-06-23 01:38:41 +00:00
Douglas Gregor
78bd61f661 Move the static DeclAttrs map into ASTContext. Fixes <rdar://problem/6983177>. 
llvm-svn: 73702
 2009-06-18 16:11:24 +00:00
Chris Lattner
4ca97c3b9e Fix PR4372, another case where non-prototyped functions can prevent 
always_inline from working.

llvm-svn: 73273
 2009-06-13 00:26:38 +00:00
Anton Korobeynikov
18adbf5f07 Add new ABIArgInfo kind: Extend. This allows target to implement its own argument 
zero/sign extension logic (consider, e.g. target has only 64 bit registers and thus
i32's should be extended as well).

llvm-svn: 72998
 2009-06-06 09:36:29 +00:00
Anton Korobeynikov
244360d62b Factor out TargetABIInfo stuff into separate file. No functionality change. 
llvm-svn: 72962
 2009-06-05 22:08:42 +00:00
Devang Patel
9e24386c65 Set function Attribute::NoImplicitFloat appropriately. 
llvm-svn: 72961
 2009-06-05 22:05:48 +00:00
Daniel Dunbar
4be99ff767 ABI handling: Fix nasty thinko where IRgen could generate an out-of-bounds read 
when generating a coercion for ABI handling purposes.
 - This may only manifest itself when building at -O0, but the practical effect
   is that other arguments may get clobbered.

 - <rdar://problem/6930451> [irgen] ABI coercion clobbers other arguments

llvm-svn: 72932
 2009-06-05 07:58:54 +00:00
Devang Patel
6e467b1a46 Set function attribute llvm::Attribute::NoRedZone appropriately. 
llvm-svn: 72902
 2009-06-04 23:32:02 +00:00
Daniel Dunbar
1518b64ddc When trying to pass an argument on the stack, assume LLVM will do the right 
thing for non-aggregate types.
 - Otherwise we unnecessarily pin values to the stack and currently end up
   triggering a backend bug in one case.

 - This loose cooperation with LLVM to implement the ABI is pretty ugly.

 - <rdar://problem/6918722> [irgen] clang miscompile of many pointer varargs on
   x86-64

llvm-svn: 72419
 2009-05-26 16:37:37 +00:00
Daniel Dunbar
499f3f9c5d x86_64 ABI: Account for sret parameters consuming an integer register. 
- PR4242.

llvm-svn: 72268
 2009-05-22 17:33:44 +00:00
Torok Edwin
5b34933b90 Set correct calling convention even if there is a bitcast in the way. 
This attempts to fix PR4239.

llvm-svn: 72251
 2009-05-22 07:25:06 +00:00
Jay Foad
7d0479f2c2 Use v.data() instead of &v[0] when SmallVector v might be empty. 
llvm-svn: 72210
 2009-05-21 09:52:38 +00:00
Anders Carlsson
6f5a015bd9 Add EmitReferenceBindingToExpr. Have EmitCallArg use it for now. Doesn't support anything but at least we don't crash ;) 
llvm-svn: 72147
 2009-05-20 00:24:07 +00:00
Anders Carlsson
8370964257 Pass the destination QualType to EmitStoreOfScalar. No functionality change. 
llvm-svn: 72118
 2009-05-19 18:50:41 +00:00
Eli Friedman
cec35d7e6a Clean up some unnecessary includes. 
llvm-svn: 72101
 2009-05-19 04:30:57 +00:00
Mike Stump
18bb9284ff Reflow some comments. 
llvm-svn: 71937
 2009-05-16 07:57:57 +00:00
Daniel Dunbar
ffdb8439d7 ABI handling: Fix invalid assertion, it is possible for a valid 
coercion to be specified which truncates padding bits. It would be
nice to still have the assert, but we don't have any API call for the
unpadding size of a type yet.

llvm-svn: 71695
 2009-05-13 18:54:26 +00:00
Chris Lattner
bea5b622be static methods don't get this pointers. 
llvm-svn: 71586
 2009-05-12 20:27:19 +00:00
Daniel Dunbar
bbfd054746 Darwin x86-32 ABI: Now that structure passing is farther along, we 
don't need special treatment for unions.

llvm-svn: 71559
 2009-05-12 17:00:20 +00:00
Daniel Dunbar
203e2e8dd8 x86-64 ABI: clang incorrectly passes union { long double, float } in 
register.
 - Merge algorithm was returning MEMORY as it should.

llvm-svn: 71556
 2009-05-12 15:22:40 +00:00
Daniel Dunbar
097353cbb5 Darwin x86-32: Multi-dimensional arrays were not handled correctly, 
spotted by Eli!

llvm-svn: 71490
 2009-05-11 23:01:34 +00:00
Daniel Dunbar
2ce6b3f91c Darwin x86_32: Treat records with unnamed bit-fields as "empty". 
llvm-svn: 71461
 2009-05-11 18:58:49 +00:00
Duncan Sands
c76fe8b611 Correct for renaming PaddedSize -> AllocSize in 
LLVM.

llvm-svn: 71350
 2009-05-09 07:08:47 +00:00
Daniel Dunbar
b997f3bcc3 x86_64 ABI: Ignore padding bit-fields during classification. 
- {return-types,single-args}-{32,64} pass the first 1k ABI tests with
   bit-fields enabled.

llvm-svn: 71272
 2009-05-08 22:26:44 +00:00
Daniel Dunbar
4752783057 Darwin x86_32: When coercing a "single element" structure, make sure 
to use a wide enough type. This might be wider than the "single
element"'s type in the presence of padding bit-fields.
 - Darwin x86_32 now passes the first 1k ABI tests with bit-field
   generation enabled.

llvm-svn: 71270
 2009-05-08 21:30:11 +00:00
Daniel Dunbar
fdda3501a0 Darwin x86_32: Ignore padding bit-fields when looking for "single 
element" structures.

llvm-svn: 71266
 2009-05-08 21:04:47 +00:00
Daniel Dunbar
4861346c44 Darwin x86_32: Improve bit-field handling for returning records. 
- This turns out to be a no-op now that most of the handling for
   everything else is in place.

llvm-svn: 71261
 2009-05-08 20:55:49 +00:00
Daniel Dunbar
85f4028f2e Darwin x86_32: Ignore arrays of empty structures inside records. 
- This eliminates 5/1000 failures on return-types-32, on the current
   ABITest config.

llvm-svn: 71250
 2009-05-08 20:21:04 +00:00
Chris Lattner
b822fad20f fix i128 to return in 2 64-bit registers (rax/rdx on x86-64) 
llvm-svn: 70481
 2009-04-30 06:22:07 +00:00
Chris Lattner
f122cef4df initial support for __[u]int128_t, which should be basically 
compatible with VC++ and GCC.  The codegen/mangling angle hasn't
been fully ironed out yet.  Note that we accept int128_t even in
32-bit mode, unlike gcc.

llvm-svn: 70464
 2009-04-30 02:43:43 +00:00
Daniel Dunbar
01910a50c4 x86-32 ABI: Fix crash on return of structure with flexible array 
member.

Also, spell bitfield more consistently as bit-field.

llvm-svn: 70220
 2009-04-27 18:31:32 +00:00
Eli Friedman
1c4a175aef Remove getIntegerConstantExprValue in favor of using EvaluateAsInt. 
llvm-svn: 70145
 2009-04-26 19:19:15 +00:00
Sanjiv Gupta
4c5dfd3c45 Pass and return aggregate types directly to function calls. 
llvm-svn: 69668
 2009-04-21 06:01:16 +00:00
Anders Carlsson
603d6aff8b Make CodeGenFunction::EmitCallArgs a template function that takes a generic "Type Info" parameter. The type info parameter knows how to iterate over its arguments. 
llvm-svn: 69469
 2009-04-18 20:20:22 +00:00
Daniel Dunbar
4184ac847f Update to use hasAttr() instead of getAttr(). 
- No functionality change.

llvm-svn: 68987
 2009-04-13 21:08:27 +00:00
Daniel Dunbar
8c920c9220 Don't set both readnone and readonly. 
llvm-svn: 68833
 2009-04-10 22:14:52 +00:00
Douglas Gregor
bcced4ec31 Propagate the ASTContext to various AST traversal and lookup functions. 
No functionality change (really).

llvm-svn: 68726
 2009-04-09 21:40:53 +00:00
Anders Carlsson
60ce3fe140 Add code for emitting call arguments (not used yet). 
llvm-svn: 68639
 2009-04-08 20:47:54 +00:00
Anders Carlsson
a60cbcdfe6 Don't assume that a block always has a FunctionProtoType. Fixes rdar://6768379. 
llvm-svn: 68583
 2009-04-08 02:55:55 +00:00
Anders Carlsson
6f811f149b Add a getFunctionInfo that takes a BlockPointerType. 
llvm-svn: 68452
 2009-04-06 18:05:26 +00:00
Anton Korobeynikov
c847824e8e Basic support for regparm codegen 
llvm-svn: 68414
 2009-04-04 00:49:24 +00:00
Anders Carlsson
b15b55c2d0 Add a getFunctionInfo that takes a CXXMethodDecl. 
llvm-svn: 68411
 2009-04-03 22:48:58 +00:00
Daniel Dunbar
e80bd1897c x86-32 Darwin ABI: Handle small structures correctly. 
- Small structures are returned in a register if: 
    1. They fit nicely in a  register.
    2. All fields fit nicely in a register.
   (more or less)

 - We now pass the first 5000 ABITests if unions are disabled.

 - <rdar://problem/6497882> [irgen] x86-32 ABI compatibility with
   small structs

llvm-svn: 68197
 2009-04-01 07:45:00 +00:00
Daniel Dunbar
58e2971bb0 x86-32 Darwin ABI: Single element arrays can be part of "single 
element structures", which have different ABI rules.
 - Current return-arguments-32 status is: 1 out of 1000 failures (-7)

 - Also, vectors inside "single element structs" require special
   handling.

llvm-svn: 68196
 2009-04-01 07:08:38 +00:00
Daniel Dunbar
cd76e673eb x86-32 Darwin ABI: Handle direct return of vectors. 
- Current return-arguments-32 status is: 8 out of 1000 failures (-7)

llvm-svn: 68192
 2009-04-01 06:13:08 +00:00
Daniel Dunbar
35579146aa x86_32 Darwin ABI: Treat empty unions like empty structures. 
- Current return-arguments-32 status: 15/1000 failures

llvm-svn: 68132
 2009-03-31 19:01:39 +00:00
Eli Friedman
bbcf49e410 Initial implementation of ARM ABI. Mostly untested. Note that I'm not 
really intending to take ownership of this; I wrote this mostly because 
I was curious about how the ARM ABI works.  It should be a decent start, 
though.

llvm-svn: 67969
 2009-03-29 00:15:25 +00:00
Eli Friedman
2dc5f29ff2 Fix the ABI convention for struct returns on x86 outside of Darwin. 
llvm-svn: 67577
 2009-03-23 23:26:24 +00:00
Chris Lattner
e09ad90882 don't set the name of a call instruction to "call" in release-asserts 
build.  This shaves another 3% off.

llvm-svn: 67460
 2009-03-22 00:32:22 +00:00
Daniel Dunbar
c230443178 PR3835: Interaction with ABI structure passing can inhibit 
readnone/readonly attributes.

llvm-svn: 67224
 2009-03-18 19:51:01 +00:00
Daniel Dunbar
8ce48d8c10 x86_32 ABI: Don't try and expand structures with bitfields. 
- This is an ABI incompatiblity, but this is not likely to be a huge
   deal in practice. For now we at least generate self consistent code
   instead of crashing.
 - <rdar://problem/6657601> x86-32 ABI: Bitfields in small structures
   are not passed correctly

llvm-svn: 66713
 2009-03-11 22:05:26 +00:00
Daniel Dunbar
4095d89532 Remove some now-unneeded calls to llvm::errs().flush(). 
llvm-svn: 66555
 2009-03-10 18:00:19 +00:00
Daniel Dunbar
94911a91d5 x86_64 ABI: Handle long double in union when upper eightbyte results 
in a lone X87 class.
 - PR3735.

llvm-svn: 66277
 2009-03-06 17:50:25 +00:00
Daniel Dunbar
b960b7b7c7 Cleanup handling of function attributes in calls. 
- No intended functionality change.

llvm-svn: 65805
 2009-03-02 04:32:35 +00:00
Douglas Gregor
deaad8cc34 Create a new TypeNodes.def file that enumerates all of the types, 
giving them rough classifications (normal types, never-canonical
types, always-dependent types, abstract type representations) and
making it far easier to make sure that we've hit all of the cases when
decoding types. 

Switched some switch() statements on the type class over to using this
mechanism, and filtering out those things we don't care about. For
example, CodeGen should never see always-dependent or non-canonical
types, while debug info generation should never see always-dependent
types. More switch() statements on the type class need to be moved 
over to using this approach, so that we'll get warnings when we add a
new type then fail to account for it somewhere in the compiler.

As part of this, some types have been renamed:

  TypeOfExpr -> TypeOfExprType
  FunctionTypeProto -> FunctionProtoType
  FunctionTypeNoProto -> FunctionNoProtoType

There shouldn't be any functionality change...

llvm-svn: 65591
 2009-02-26 23:50:07 +00:00
Daniel Dunbar
76ba41ce4f Add Type::hasPointerRepresentation predicate. 
- For types whose native representation is a pointer.

 - Use to replace ExprConstant.cpp:HasPointerEvalType,
   CodeGenFunction::isObjCPointerType.

llvm-svn: 65569
 2009-02-26 20:52:22 +00:00
Daniel Dunbar
e2617d97a5 Drop uses of isPointerLikeType. 
- No functionality change.

llvm-svn: 65560
 2009-02-26 19:03:24 +00:00
Anders Carlsson
600183db9e Classify enum types correctly 
llvm-svn: 65533
 2009-02-26 17:31:15 +00:00
Daniel Dunbar
b98d1f7140 x86_64 ABI: Qualified id types are passed as pointers. 
- <rdar://problem/6622451> Bad x86_64 code gen for message call taking one argument.

llvm-svn: 65510
 2009-02-26 07:21:35 +00:00
Daniel Dunbar
4208835eec Temporarily disable clearing of insert point (to indicate unreachable 
code) when calling noreturn functions; general expression emission
isn't ready to do the right thing in all cases.

llvm-svn: 65473
 2009-02-25 20:59:29 +00:00
Daniel Dunbar
1234749853 Add low level support for generating invoke instead of calls. 
- No functionality change.

llvm-svn: 65325
 2009-02-23 17:26:39 +00:00
Daniel Dunbar
bb525c3c7f x86_64 ABI: Actually, we can always pass things we want to pass in 
memory using Indirect; this was a holdover from when CGCall wasn't as
robust.

llvm-svn: 65278
 2009-02-22 08:17:51 +00:00
Daniel Dunbar
075d642e24 x86_64 ABI: Make sure to pass vectors that we want to pass in memory 
as byval. Otherwise LLVM will have its own opinion about where to put
things.

We now pass all gcc dg.compat tests on x86_64.

llvm-svn: 65266
 2009-02-22 07:22:25 +00:00
Daniel Dunbar
c64c481d18 x86_64 ABI: Pass 32-bit vectors as Integer to match gcc. We don't care 
about these much but <2 x i16> shows up in the gcc test suite.

llvm-svn: 65264
 2009-02-22 04:48:22 +00:00
Daniel Dunbar
f25afad9e5 x86_64 ABI: Classify <1 x i64> as INTEGER (match gcc not llvm-gcc). 
Also, make sure to pass <1 x i64> as i64 (not <1 x i64>, which doesn't
quite work yet in the backend).

llvm-svn: 65262
 2009-02-22 04:16:10 +00:00
Daniel Dunbar
5006f4a5f0 Take advantage of noreturn attribute to add unreachable instruction & 
clear insertion point. The rest of IRgen should theoretically take
advantage of this to avoid emitting dead code. Theory != Practice.

llvm-svn: 65141
 2009-02-20 18:54:31 +00:00
Daniel Dunbar
cdbb5e336d Set call attribute for direct calls (i.e. noreturn). 
- Remove an unused variant of EmitCallExpr overload.

llvm-svn: 65130
 2009-02-20 18:06:48 +00:00
Chris Lattner
90669d0500 switch ObjCMethodDecl's parameter list from being explicitly managed to an ObjCList. 
llvm-svn: 65114
 2009-02-20 06:23:21 +00:00
Daniel Dunbar
8cdb9dae45 i386 ABI: Offset computation in va_arg was incorrect for sizeof(Ty)>4. 
We are down to only failing gcc.dg/compat/vector-[12] (8 tests total).

llvm-svn: 64967
 2009-02-18 22:28:45 +00:00
Daniel Dunbar
e60ec0abca x86_64 ABI: Fix thinko in computation of bound for "passed in SSE regs" test. 
Two more gcc/x86_64 failures down.

llvm-svn: 64963
 2009-02-18 22:19:44 +00:00
Daniel Dunbar
e3bba6e3d0 x86_64 ABI: "is passed in regs" computation for va_arg was broken for 
things passed in mixed registers.

This knocks out 8 x86_64 failures.

llvm-svn: 64958
 2009-02-18 22:05:01 +00:00
Daniel Dunbar
617e89231d x86_64 ABI: Two bug fixes. 
1. Return of _Complex long double used wrong type.

2. va_arg of types passed in two SSE registers didn't account for
extra space in register save area.

Down to 18 failures on gcc/compat/x86_64. Combined 32/64 results are:
--
		=== gcc Summary ===

# of expected passes		1292
# of unexpected failures	34
# of unsupported tests		2
--

llvm-svn: 64880
 2009-02-18 03:44:19 +00:00
Daniel Dunbar
0ee13255ee x86_64 ABI: Fix assert on return of _Complex long double. 
llvm-svn: 64756
 2009-02-17 07:55:55 +00:00
Daniel Dunbar
7f0e2368bb x86_64 ABI: Implement classification for bit-fields. 
llvm-svn: 64727
 2009-02-17 02:45:44 +00:00
Daniel Dunbar
f2c6198eef x86_64 ABI: Handle va_arg arguments with alignment > 8. 
llvm-svn: 64701
 2009-02-16 23:38:56 +00:00
Daniel Dunbar
3d88672f64 x86_64 ABI: Need to use canonical types when comparing against 
ASTContext types.

llvm-svn: 64533
 2009-02-14 02:45:45 +00:00
Daniel Dunbar
019ef0bbfe x86_64 ABI: Pass simple types directly when possible. This is 
important for both keeping the generated LLVM simple and for ensuring
that integer types are passed/promoted correctly.

llvm-svn: 64529
 2009-02-14 02:09:24 +00:00
Daniel Dunbar
abe6ef932f x86_64 ABI: Support va_arg passed in mixed registers. 
- Now at 1274 passes on gcc compat suite vs 1262.

llvm-svn: 64469
 2009-02-13 17:46:31 +00:00
Daniel Dunbar
753cc07d13 x86_64: Initial varargs support. 
- Doesn't yet handle case where values are passed in mixed (general
   purpose & floating point) registers; otherwise largely
   functional. Code still needs some cleaning.

Fixes:
MultiSource/Applications/lua/lua
MultiSource/Applications/siod/siod
MultiSource/Applications/sqlite3/sqlite3
SingleSource/Regression/C/PR640
SingleSource/UnitTests/2003-07-09-SignedArgs
SingleSource/UnitTests/2007-03-02-VaCopy

gcc compat test suite results (Darwin x86-32 & -64):
--
# of expected passes		1262
# of unexpected failures	56
# of unresolved testcases	34
# of unsupported tests		2

Compare to: http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20090209/012050.html

llvm-svn: 64370
 2009-02-12 09:04:14 +00:00
Daniel Dunbar
2d0746fb97 Pull CodeGenFunction::EmitVAArg into target specific ABIInfo classes. 
llvm-svn: 64235
 2009-02-10 20:44:09 +00:00
Daniel Dunbar
9403cd6d85 Tweak x86-64 ABI to allow reuse for vararg handling. 
llvm-svn: 64221
 2009-02-10 17:06:09 +00:00
Daniel Dunbar
9bfb4de38b ABI: Correctly handle load/store of values which have a different LLVM 
memory representation (e.g., bool).
 - This upgrades (downgrades) MultiSource/Applications/ClamAV/clamscan
   to a miscompile and fixes
   SingleSource/UnitTests/2003-05-31-CastToBool.

llvm-svn: 64194
 2009-02-10 01:51:39 +00:00
Daniel Dunbar
d5f1f55e28 Make sure to initialize local variables, even if they were ignored by 
ABI.

llvm-svn: 64187
 2009-02-10 00:06:49 +00:00
Daniel Dunbar
ee9e4c274b Set load/store alignment when doing ABI coercions. 
- Currently, this is producing poor code, but we prefer correctness
   to performance for now. Eventually we should be able to generally
   avoid having to set the alignment when we control the alignment of
   the alloca.

 - This knocks out 33/1000 failures on my single argument ABI tests,
   down to 22/1000 and 18 of these appear to be gcc bugs. Woot.

llvm-svn: 64001
 2009-02-07 02:46:03 +00:00
Daniel Dunbar
5d3dbd64e1 Implement Direct ABIInfo semantics. 
- No intended functionality change, this is essentially enabling
   direct passing of complex and aggregate values, which no ABI is
   using.

llvm-svn: 63863
 2009-02-05 11:13:54 +00:00
Daniel Dunbar
cea3af4e54 Simplify test for whether we need an alloca to hold an indirect return 
value.
 - No functionality change.

llvm-svn: 63859
 2009-02-05 09:24:53 +00:00
Daniel Dunbar
747865af0c Implement ABI Indirect sematics for arguments. 
- No intended functionality change, all current ABI implementations
   were only using indirect for complex/aggregate types, which were
   being passed indirectly with the Direct ABIInfo kind.

llvm-svn: 63858
 2009-02-05 09:16:39 +00:00
Daniel Dunbar
b8b1c679c4 Merge ABIInfo StructRet/ByVal into Indirect. 
- No (intended) functionality change, the semantic changes are to come.

llvm-svn: 63850
 2009-02-05 08:00:50 +00:00
Daniel Dunbar
c79407fc40 Pull CodeGenFunction::GetUndefRValue() out of EmitUnsupportedRValue. 
llvm-svn: 63845
 2009-02-05 07:09:07 +00:00
Daniel Dunbar
70245be397 x86-32: Use Ignore to avoid passing empty structs (instead of Expand). 
llvm-svn: 63813
 2009-02-05 01:50:07 +00:00
Daniel Dunbar
0103574d55 Honor ByVal alignment. Patch by Nate Begeman! 
llvm-svn: 63811
 2009-02-05 01:31:19 +00:00
Daniel Dunbar
fff09f335d Unbreak CGFunctionInfo::Profile method and reenable caching of ABI 
information.

llvm-svn: 63799
 2009-02-05 00:00:23 +00:00
Daniel Dunbar
56e7552c73 Add ABIArgInfo::dump() 
llvm-svn: 63794
 2009-02-04 23:24:38 +00:00
Daniel Dunbar
fb5fdf1f14 Temporarily disable caching of ABI results; this is going horribly 
wrong in some cases.

llvm-svn: 63780
 2009-02-04 21:36:22 +00:00
Daniel Dunbar
a45bdbbb6a Add asserts that the function signature matches the other arguments provide 
to CGCall functions.

llvm-svn: 63775
 2009-02-04 21:17:21 +00:00
Daniel Dunbar
6e3b7df125 Handle demotion of coerced arguments (as in void a(x) short x; { ... }). 
llvm-svn: 63726
 2009-02-04 07:22:24 +00:00
Daniel Dunbar
a33461150d Use ConvertTypeForMem when creating alloca for scalar argument. 
llvm-svn: 63681
 2009-02-03 23:04:57 +00:00
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