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650 Commits

Author SHA1 Message Date
Chris Lattner
3517f14219 PR10337 reminds me that calls return values, lets handle them just 
like arguments.  Thanks PR10337! :)

llvm-svn: 135030
 2011-07-13 03:59:32 +00:00
Chris Lattner
d59d867ca5 insert a bitcast in the 'expand' case of argument passing when needed. This 
fixes the -m32 build of oggenc.

llvm-svn: 134971
 2011-07-12 06:29:11 +00:00
Chris Lattner
3ce8668273 fix PR10335 by watching out for IR type compatibility in call argument lists. 
llvm-svn: 134966
 2011-07-12 04:53:39 +00:00
Chris Lattner
bb1952cfda add some aggressive assertions that call arguments match up to callee 
expectations in EmitCall.  Next patch will take this further.

llvm-svn: 134962
 2011-07-12 04:46:18 +00:00
Chris Lattner
35bd5be2a2 how about we initialize RecursionState. 
llvm-svn: 134855
 2011-07-10 01:10:18 +00:00
Chris Lattner
8806e32f16 Rename CGT::VerifyFuncTypeComplete to isFuncTypeConvertible since 
it is a predicate, not an action.  Change the return type to be a bool,
not the incomplete member.  Enhace it to detect the recursive compilation
case, allowing us to compile Eli's testcase on llvmdev:

struct T {
 struct T (*p)(void);
} t;

into:

%struct.T = type { {}* }

@t = common global %struct.T zeroinitializer, align 8

llvm-svn: 134853
 2011-07-10 00:18:59 +00:00
Chris Lattner
a5f58b05e8 clang side to match the LLVM IR type system rewrite patch. 
llvm-svn: 134831
 2011-07-09 17:41:47 +00:00
John McCall
55e1fbc848 LValue carries a type now, so simplify the main EmitLoad/Store APIs 
by removing the redundant type parameter.

llvm-svn: 133860
 2011-06-25 02:11:03 +00:00
John McCall
31168b077c Automatic Reference Counting. 
Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.

llvm-svn: 133103
 2011-06-15 23:02:42 +00:00
Eli Friedman
f7456194a3 Per Chris's suggestion, simplify code using llvm::getOrEnforceKnownAlignment. 
llvm-svn: 133095
 2011-06-15 22:09:18 +00:00
Eli Friedman
7e68c88bf7 Fix a regression from r132957 involving complex integers. (Fixes failures on gcc-testsuite bot.) 
llvm-svn: 133069
 2011-06-15 18:26:32 +00:00
Eli Friedman
eb7fab61bd The LLVM IR representation of byval arguments has a rather strange property: if the alignment of an argument to a call is less than the specified byval alignment for that argument, there is no way to specify the alignment of the implied copy. Therefore, we must ensure that the alignment of the argument is at least the byval alignment. To do this, we have to mess with the alignment of relevant alloca's in some cases, and insert a copy that conceptually shouldn't be necessary in some cases. 
This patch tries relatively hard to avoid creating an extra copy if it can be avoided (see test3 in the included testcase), but it is not possible to avoid in some cases (like test2 in the included testcase).

rdar://9483886

llvm-svn: 132957
 2011-06-14 01:37:52 +00:00
Eli Friedman
df96819daf Skip extra copy from aggregate where it isn't necessary; rdar://problem/8139919 . This shouldn't make much of a difference at -O3, but should substantially reduce the number of generated memcpy's at -O0. 
Originally r130717, but was backed out due to an ObjC regression.

llvm-svn: 132102
 2011-05-26 00:10:27 +00:00
Douglas Gregor
6ab2fa8f78 Introduce Type::isSignedIntegerOrEnumerationType() and 
Type::isUnsignedIntegerOrEnumerationType(), which are like
Type::isSignedIntegerType() and Type::isUnsignedIntegerType() but also
consider the underlying type of a C++0x scoped enumeration type.

Audited all callers to the existing functions, switching those that
need to also handle scoped enumeration types (e.g., those that deal
with constant values) over to the new functions. Fixes PR9923 /
<rdar://problem/9447851>.

llvm-svn: 131735
 2011-05-20 16:38:50 +00:00
Eli Friedman
af9b325d23 For calls returning first-class aggregates, store by element instead of creating aggregate stores in common cases. This is more friendly to fast-isel. 
llvm-svn: 131490
 2011-05-17 21:08:01 +00:00
John McCall
85dd2c5039 More killing of std::vector. 
llvm-svn: 131374
 2011-05-15 02:19:42 +00:00
Douglas Gregor
9ca5465500 Revert r130717, which caused a regression (<rdar://problem/9402621>). 
llvm-svn: 131057
 2011-05-07 20:12:26 +00:00
Eli Friedman
30458b51e3 Skip extra copy from aggregate where it isn't necessary; rdar://problem/8139919 . This shouldn't make much of a difference at -O3, but should substantially reduce the number of generated memcpy's at -O0. 
llvm-svn: 130717
 2011-05-02 20:24:29 +00:00
Eli Friedman
f4258eb484 Switch CallArgList from an std::pair to a new CallArg struct (which will eventually gain more members). Working towards modifying call emission to avoid unnecessary copies. 
llvm-svn: 130700
 2011-05-02 18:05:27 +00:00
Anton Korobeynikov
231e875b5c Implement ARM pcs attribute. Basically it's another way of calling convention selection (AAPCS or 
AAPCS+VFP), similar to fastcall / stdcall / whatevercall seen on x86.

In particular, all library functions should always be AAPCS regardless of floating point ABI used.

llvm-svn: 129534
 2011-04-14 20:06:49 +00:00
Eli Friedman
c5b20b5283 PR8369: make __attribute((regparm(0))) work correctly. Original patch by 
pageexec@freemail.hu, tweaks by me.

llvm-svn: 129206
 2011-04-09 08:18:08 +00:00
Peter Collingbourne
599cb8e430 Add support for language-specific address spaces. On top of that, 
add support for the OpenCL __private, __local, __constant and
__global address spaces, as well as the __read_only, _read_write and
__write_only image access specifiers.  Patch originally by ARM;
language-specific address space support by myself.

llvm-svn: 127915
 2011-03-18 22:38:29 +00:00
Sebastian Redl
31ad754c96 Instead of storing an ASTContext* in FunctionProtoTypes with computed noexcept specifiers, unique FunctionProtoTypes with a ContextualFoldingSet, as suggested by John McCall. 
llvm-svn: 127568
 2011-03-13 17:09:40 +00:00
Sebastian Redl
fa453cfdc3 Propagate the new exception information to FunctionProtoType. 
Change the interface to expose the new information and deal with the enormous fallout.
Introduce the new ExceptionSpecificationType value EST_DynamicNone to more easily deal with empty throw specifications.
Update the tests for noexcept and fix the various bugs uncovered, such as lack of tentative parsing support.

llvm-svn: 127537
 2011-03-12 11:50:43 +00:00
John McCall
32ea969415 Use a slightly more semantic interface for emitting call arguments. 
llvm-svn: 127494
 2011-03-11 20:59:21 +00:00
NAKAMURA Takumi
dd63436808 lib/CodeGen/CGCall.cpp: Don't invoke multiple Builder.CreateBitCast() on Builder.CreateMemCpy. Or we would see sideeffect incompatibility among gcc and clang. 
llvm-svn: 127405
 2011-03-10 14:02:21 +00:00
John McCall
a738c25f5e Use the "undergoes default argument promotion" bit on parameters to 
simplify the logic of initializing function parameters so that we don't need
both a variable declaration and a type in FunctionArgList.  This also means
that we need to propagate the CGFunctionInfo down in a lot of places rather
than recalculating it from the FAL.  There's more we can do to eliminate
redundancy here, and I've left FIXMEs behind to do it.

llvm-svn: 127314
 2011-03-09 04:27:21 +00:00
Devang Patel
68a1525290 Encode argument numbering in debug info so that code generator can emit them in order. 
This fixes few blocks.exp regressions.

llvm-svn: 126960
 2011-03-03 20:13:15 +00:00
Tilmann Scheller
99cc30c371 Revert "Add CC_Win64ThisCall and set it in the necessary places." 
This reverts commit 126863.

llvm-svn: 126886
 2011-03-02 21:36:49 +00:00
Devang Patel
bd6f7f9770 revert r126858. 
llvm-svn: 126874
 2011-03-02 20:31:22 +00:00
Tilmann Scheller
454464b491 Add CC_Win64ThisCall and set it in the necessary places. 
llvm-svn: 126863
 2011-03-02 19:36:23 +00:00
Devang Patel
31e5fb52d1 Encode argument numbering in debug info so that code generator can emit them in order. 
This fixes few blocks.exp regressions.

Reapply r126795 with a fix (one character change) for gdb testsuite regressions.

llvm-svn: 126858
 2011-03-02 19:11:22 +00:00
Devang Patel
a54696de8a Revert r126794. 
llvm-svn: 126848
 2011-03-02 17:54:58 +00:00
Devang Patel
3bc2dedb40 Encode argument numbering in debug info so that code generator can emit them in order. 
This fixes few blocks.exp regressions.

llvm-svn: 126795
 2011-03-01 22:59:40 +00:00
Fariborz Jahanian
cf7f66f16f objc IRGen for Next runtime message API. 
The prototype for objc_msgSend() is technically variadic - 
`id objc_msgSend(id, SEL, ...)`. 
But all method calls should use a prototype that matches the method, 
not the prototype for objc_msgSend itself().
// rdar://9048030

llvm-svn: 126754
 2011-03-01 17:28:13 +00:00
Devang Patel
25468059e5 Simplify test to check an aggregate argument that has non trivial constructor or destructor. 
This patch rewrites r125142.

llvm-svn: 125632
 2011-02-16 01:11:51 +00:00
Daniel Dunbar
cb2b3d051d Fix family-friendly-o, tsk tsk. 
llvm-svn: 125293
 2011-02-10 18:10:07 +00:00
Daniel Dunbar
0bb0331d95 Driver/Frontend: Wire up -mregparm=. 
llvm-svn: 125201
 2011-02-09 17:54:19 +00:00
Devang Patel
14524e0f24 If an aggregate argument is passed indirectly because it has non trivial 
destructor or copy constructor than let debug info know about it.

Radar 8945514.

llvm-svn: 125142
 2011-02-09 00:37:30 +00:00
John McCall
ad7c5c1657 Reorganize CodeGen{Function,Module} to eliminate the unfortunate 
Block{Function,Module} base class.  Minor other refactorings.

Fixed a few address-space bugs while I was there.

llvm-svn: 125085
 2011-02-08 08:22:06 +00:00
Ken Dyck
705ba07ef0 Replace calls to getTypeSize() and getTypeAlign() with their 'InChars' 
counterparts where char units are needed.

llvm-svn: 123805
 2011-01-19 01:58:38 +00:00
Benjamin Kramer
acc6b4e2fd Simplify mem{cpy, move, set} creation with IRBuilder. 
llvm-svn: 122634
 2010-12-30 00:13:21 +00:00
Michael J. Spencer
f5a1fbcdf3 Fix Whitespace. 
llvm-svn: 116798
 2010-10-19 06:39:39 +00:00
Daniel Dunbar
7b7c2937ef IRgen/ABI: Add support for realigning structures which are passed by indirect 
reference.

llvm-svn: 114114
 2010-09-16 20:42:02 +00:00
Dawn Perchik
335e16bad4 Add symantic support for the Pascal calling convention via 
"__attribute((pascal))" or "__pascal" (and "_pascal" under
-fborland-extensions).  Support still needs to be added to llvm.

llvm-svn: 112939
 2010-09-03 01:29:35 +00:00
John McCall
0d635f53a8 Re-commit r112916 with an additional fix for the self-host failures. 
I've audited the remaining getFunctionInfo call sites.

llvm-svn: 112936
 2010-09-03 01:26:39 +00:00
John McCall
c32f94b4ce Revert r112916, it's breaking selfhost pretty badly. 
llvm-svn: 112925
 2010-09-03 00:40:45 +00:00
John McCall
12d3891a27 It's not safe to use the generic CXXMethodDecl overload of CGT::getFunctionInfo 
to set up a destructor call, because ABIs can tweak these conventions.
Fixes rdar://problem/8386802.

llvm-svn: 112916
 2010-09-03 00:01:57 +00:00
John McCall
5d865c3292 Teach IR generation to return 'this' from constructors and destructors 
under the ARM ABI.

llvm-svn: 112588
 2010-08-31 07:33:07 +00:00
Daniel Dunbar
2e442a00b3 IRgen: Switch more MakeAddr() users to MakeAddrLValue; this time for calls which were previously not computing the qualifier list. In most cases, I don't think it matters, but I believe this is conservatively more correct / consistent. 
llvm-svn: 111717
 2010-08-21 03:15:20 +00:00