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4873 Commits

Author SHA1 Message Date
Eli Friedman
617ba48fd5 Always check that the definition of a function has the correct type. 
This fixes a crash on the included testcase (found in NetHack).

llvm-svn: 51767
 2008-05-30 11:13:18 +00:00
Eli Friedman
43a6d51494 More complete/correct implementation of the comparison operators for 
constant expressions.

llvm-svn: 51682
 2008-05-29 15:17:49 +00:00
Eli Friedman
3c28524632 Fix an extremely subtle bug with pointer comparisons: they have to be 
unsigned because it's possible (at least in theory) to have
have both positive and negative pointers pointing to the same object.

llvm-svn: 51681
 2008-05-29 15:09:15 +00:00
Eli Friedman
133e8040ca Rearrange EmitLValueForField a bit to work properly for _Bool bitfields 
in unions (we don't want to do the union-specific bitcast for 
bit-fields).

llvm-svn: 51678
 2008-05-29 11:33:25 +00:00
Eli Friedman
045bf4ff82 Add codegen support for a few more kinds of initializer constant 
expressions.

llvm-svn: 51677
 2008-05-29 11:22:45 +00:00
Eli Friedman
174d9c26f1 Add CodeGen support for alignment on globals, both for unusual natural 
alignment and alignment attributes.

llvm-svn: 51676
 2008-05-29 11:10:27 +00:00
Eli Friedman
d72a9624a1 Tentative declarations are supposed to have common linkage, not weak. 
This change makes clang generate the same thing as llvm-gcc.

llvm-svn: 51674
 2008-05-29 11:03:17 +00:00
Eli Friedman
5a6d0ede91 Always use packed structs. This isn't really very nice, but there's 
nothing fundamentally wrong with it. Emitting unpacked structs where 
possible is more work for almost no practical benefit.  We'll probably 
want to fix it at some point anyway, but it's low priority.

The issue with long double in particular is that LLVM thinks an X86 long
double is 10 bytes, while clang considers it for all purposes to be
either 12 or 16 bytes, depending on the platform, even in a packed
struct.

llvm-svn: 51673
 2008-05-29 10:58:49 +00:00
Devang Patel
1c56ace4df Check first member alignment and uses packed struct if required. 
llvm-svn: 51619
 2008-05-27 22:45:40 +00:00
Devang Patel
d608074e09 Fix test case 
llvm-svn: 51618
 2008-05-27 22:44:22 +00:00
Eli Friedman
21911e89d5 A few more cases for aggregate values. 
llvm-svn: 51596
 2008-05-27 15:51:49 +00:00
Eli Friedman
5e2281ede8 Implementation of __builtin_ctlz. 
llvm-svn: 51595
 2008-05-27 15:32:46 +00:00
Eli Friedman
aee9e54dca Don't swap function decls, and add them to the scope as they are 
encountered.  Mixing up the decls is unintuitive, and confuses the AST 
destruction code. Fixes PR2360.

Note that there is a need to look up the characteristics and 
declarations of a function associated with a particular name or decl, 
but the original swapping code doesn't solve it properly. 
http://lists.cs.uiuc.edu/pipermail/cfe-dev/2008-May/001644.html is one 
suggestion for how to fix that.

llvm-svn: 51584
 2008-05-27 05:07:37 +00:00
Eli Friedman
078c963a31 Add a more reliable check for whether a static declaration has already 
been used.  In preparation for the fix to PR2360, but also a minor bug 
in its own right.

llvm-svn: 51583
 2008-05-27 04:58:01 +00:00
Eli Friedman
bdef5df44e Generalize the float type generation code, and specifically fix the 
codegen of X86 long double.

llvm-svn: 51578
 2008-05-27 04:20:05 +00:00
Eli Friedman
43f6b67135 A small testcase; no patch, since it was a bug in a patch I never 
committed.

llvm-svn: 51370
 2008-05-21 13:21:01 +00:00
Eli Friedman
f77daf5e58 Fix test (it was incorrectly succeeding). 
llvm-svn: 51310
 2008-05-20 09:04:19 +00:00
Eli Friedman
53e38bd6b6 Add codegen support for stack address intrinsics. 
llvm-svn: 51309
 2008-05-20 08:59:34 +00:00
Eli Friedman
4b0e2a30e0 Implement codegen for comma operator for structs. 
llvm-svn: 51304
 2008-05-20 07:56:31 +00:00
Eli Friedman
a3a4068949 Implement CodeGen for __builtin_memcpy. 
llvm-svn: 51282
 2008-05-19 23:27:48 +00:00
Eli Friedman
541268086a Remove illegal test. 
llvm-svn: 51267
 2008-05-19 20:17:34 +00:00
Eli Friedman
f23b6fa41f Fix the emission of expressions like char a[10] = "asdf"; previously, 
they were causing bad code to be emitted.  There are two fixes here: one 
makes sure we emit a string that is long enough, and one makes sure we 
properly handle string initialization in init lists.

llvm-svn: 51259
 2008-05-19 17:51:16 +00:00
Eli Friedman
f2442dcc8d Fix support for _Bool bitfields. The issue is that the bitfield width 
used for _Bool is not the same as the primitive width (which for _Bool 
is 1 bit).  The load and store changes add some casts to make the 
types consistent.  The EmitLValue changes make sure that the pointer is 
of an appropriate type for loading the bitfield.

This isn't perfect, but it's an improvement, and getting everything 
right depends on actually laying out structs in an ABI-compliant way.

llvm-svn: 51224
 2008-05-17 20:03:47 +00:00
Eli Friedman
cb92a3f03b Patch for PR2334, and a similar ObjC bug. 
llvm-svn: 51193
 2008-05-16 17:37:11 +00:00
Eli Friedman
a1b4ed8003 Implementation of __builtin_shufflevector, a portable builtin capable of 
expressing the full flexibility of the LLVM shufflevector instruction.  
The expected immediate usage is in *mmintrin.h, so that they don't 
depend on the mess of gcc-inherited (and not completely implemented)
shuffle builtins.

llvm-svn: 51113
 2008-05-14 19:38:39 +00:00
Eli Friedman
9fd8b68568 Add codegen support for block-level compound literals. 
llvm-svn: 51081
 2008-05-13 23:18:27 +00:00
Eli Friedman
6a7087e455 Emit basic block for switch body; fixes PR2307. 
llvm-svn: 50968
 2008-05-12 16:08:04 +00:00
Eli Friedman
6e31321043 Don't try to take the address of a bitfield; fixes PR2310. 
llvm-svn: 50966
 2008-05-12 15:06:05 +00:00
Mon P Wang
b84407d6ec Added support to generate some atomic operators (add, sub, and, or etc..) 
llvm-svn: 50919
 2008-05-09 22:40:52 +00:00
Devang Patel
ac25fc6f2e Begin handling union bitfields. 
Note, this is just beginning.

llvm-svn: 50835
 2008-05-07 22:28:29 +00:00
Devang Patel
243d5cd283 Fix PR2101 - Codegen crash during bitfield initialization. 
llvm-svn: 50769
 2008-05-06 19:57:59 +00:00
Chris Lattner
033352b036 add a testcase 
llvm-svn: 50608
 2008-05-04 00:56:25 +00:00
Chris Lattner
73669defed remove the 'unused static' diagnostic from codegen. This should be 
reimplemented in Sema someday.  This is tracked in PR2236.  Until then
disabling it removes some bogus diagnostics (see 2236).

llvm-svn: 50263
 2008-04-25 15:47:13 +00:00
Nate Begeman
1c906206b8 Fix PR2236 
Add test
Implement feedback from Chris re: PR1998

llvm-svn: 50001
 2008-04-20 20:38:08 +00:00
Nate Begeman
ce4d7fce6b OCUVector -> ExtVector, shorthand for extended vector, per feedback from Chris. 
llvm-svn: 49942
 2008-04-18 23:10:10 +00:00
Chris Lattner
d71f83a8cb this started failing because a GEP was constant folded, 
improve the robustness of the test.

llvm-svn: 49618
 2008-04-13 19:54:28 +00:00
Chris Lattner
aa9c7aed0f Add support for C++ default arguments, and rework Parse-Sema 
interaction for function parameters, fixing PR2046.

Patch by Doug Gregor!

llvm-svn: 49369
 2008-04-08 04:40:51 +00:00
Chris Lattner
579a05d767 Fix PR2049, updating Eli's patch that fixes to mainline. This produces incorrect 
code, but the codegen doesn't crash.  I'll file a bugzilla for the AST being wrong.

llvm-svn: 49226
 2008-04-04 18:42:16 +00:00
Chris Lattner
f3bc75afcf Since isComplexType() no longer returns true for _Complex integers, the code 
generator needs to call isAnyComplexType().  This fixes PR1960.

llvm-svn: 49220
 2008-04-04 16:54:41 +00:00
Chris Lattner
e799eb5daa Fix PR2081 (problems codegen'ing some recursive structures) patch 
by Lauro Venancio!

llvm-svn: 49144
 2008-04-03 05:50:42 +00:00
Chris Lattner
a21ad8058a Fix several bugs in array -> pointer decomposition. 
First, we got several CVR propagation cases wrong, which Eli pointed
out in PR2039.

Second, we didn't propagate address space qualifiers correctly, leading
to incorrect lowering of code in CodeGen/address-space.c.

Third, we didn't uniformly propagate the specifier in the array to the
pointer ("int[restrict 4]" -> "int *restrict").

This adds an ASTContext::getArrayDecayedType member that handles the 
non-trivial logic for this seemingly simple operation.

llvm-svn: 49078
 2008-04-02 05:18:44 +00:00
Chris Lattner
0fdc379475 The operand to the visibility attribute is required to be a quoted string, not a bare identifier. 
llvm-svn: 47893
 2008-03-04 18:08:48 +00:00
Gabor Greif
e2e5c3f394 The attribute nothrow maps to llvm attribute nounwind. Fix testcase. 
llvm-svn: 47841
 2008-03-03 14:53:09 +00:00
Chris Lattner
65079bd9be fix codegen support for functions that are nothrow and noreturn. 
llvm-svn: 47838
 2008-03-03 03:45:26 +00:00
Chris Lattner
8496639787 Add a bunch of attributes, patch by Nuno Lopes. 
llvm-svn: 47837
 2008-03-03 03:28:21 +00:00
Lauro Ramos Venancio
01a72ff5d3 Implement codegen for the following static var init. 
void g() {
  static char a[10];
  static char *b = a;
}

Now we can compile wget!

llvm-svn: 47627
 2008-02-26 21:41:45 +00:00
Lauro Ramos Venancio
8af648ac55 Fix a bug in ConvertAsmString function. 
llvm-svn: 47618
 2008-02-26 19:19:58 +00:00
Lauro Ramos Venancio
c9fbd7301a Convert x86 target specific inline asm constraints to LLVM. 
llvm-svn: 47609
 2008-02-26 18:33:46 +00:00
Eli Friedman
c62dd9d345 Some const initializer tests for stuff I just committed. 
llvm-svn: 47442
 2008-02-21 18:07:36 +00:00
Chris Lattner
3b418d8446 implement codegen support for sizeof(void), fixing PR2080. 
llvm-svn: 47429
 2008-02-21 05:45:29 +00:00