Commit Graph

660 Commits

Author SHA1 Message Date
Eli Friedman 5ac69057c0 Make vectorized floating-point comparisons work without crashing.
llvm-svn: 76726
2009-07-22 06:07:16 +00:00
Mon P Wang acedf7768f Preserve address space information through member accesses, e.g.,
__attribute__((address_space(1))) struct {int arr[ 3 ]; }  *p1;
   ... = p1->arr[2];  // load from address space 1

llvm-svn: 76717
2009-07-22 03:08:17 +00:00
Mike Stump 5c1acd1f33 Revert this, was a bug in my new warning code, not the test case.
llvm-svn: 76690
2009-07-21 23:50:15 +00:00
Mike Stump 5e7869f63e Prep for new warning.
llvm-svn: 76638
2009-07-21 20:52:43 +00:00
Daniel Dunbar c3ab4c6c98 Detect when the current generation point is unreachable after emitting
expressions.
 - This generally catches the important case of noreturn functions.

 - With the last two changes, we are down to 152 unreachable blocks emitted on
   403.gcc, vs the 1805 we started with.

llvm-svn: 76364
2009-07-19 08:23:12 +00:00
Daniel Dunbar b6adc43f6e Avoid generation of dead code in a few more situations.
- Emit variable declarations as "simple", we want to avoid forcing the creation
   of a dummy basic block, but still need to make the variable available for
   later use.

 - With that, we can now skip IRgen for other unreachable statements (which
   don't define a label).

 - Anders, I added two fixmes on calls to EmitVLASize, can you check them?

llvm-svn: 76361
2009-07-19 06:58:07 +00:00
Chris Lattner 3afa3e1d91 codegen string literals using private linkage now like llvm-gcc, eliminating
some target hooks.

llvm-svn: 75895
2009-07-16 05:03:48 +00:00
Chris Lattner 2a7deb64c0 reimplement vector comparisons as [fi]cmp+sext instead of using v[if]cmp.
Also, enable them in sema so that they are tested, and now that the x86 backend
has stablized.

llvm-svn: 74983
2009-07-08 01:08:03 +00:00
Chris Lattner 877a48e67a make these tests pass with the stack canary stuff even on targets where they default to on.
llvm-svn: 74412
2009-06-28 19:49:49 +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
Devang Patel 0d425350b2 Revrt PR4228 fix for now.
llvm-svn: 74304
2009-06-26 18:32:22 +00:00
Chris Lattner 4c8da96ea9 fix PR4423.
llvm-svn: 73938
2009-06-23 01:38:41 +00:00
Eli Friedman c619d6fab5 Add a target triple to a couple of tests which depend on it. Reported
by Mark Cianciosa on cfe-dev.

llvm-svn: 73672
2009-06-18 02:04:19 +00:00
Devang Patel 9fc4341eec It is possible that main input file does not have any symbol with debug info. To handle this edge case, always create main compile unit first.
This fixes PR 4228.

llvm-svn: 73520
2009-06-16 18:02:02 +00:00
Chris Lattner 943658f00b testcase for r72869, it turns out that it happens in Ruby.
llvm-svn: 73514
2009-06-16 17:39:02 +00:00
Eli Friedman 6282b3cff8 PR4390: Make sure to handle anonymous unions correctly while building
static intializers for structs.

llvm-svn: 73349
2009-06-14 21:41:37 +00:00
Eli Friedman 3192cc8526 Fix the calling convention for structs/unions containing SSE vectors on
x86-32.  This is slightly messy, but I think it's consistent with gcc.

llvm-svn: 73306
2009-06-13 21:37:10 +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
Daniel Dunbar fd262b4a62 Fix test, which could miss failures, and also avoid leaving temporary .i file in
source directory.

llvm-svn: 73094
2009-06-08 22:44:26 +00:00
Daniel Dunbar eed62b7c4b Add stack alignment to x86_64 target data.
- <rdar://problem/6948443> WARNING: Linking two modules of different data
   layouts!

llvm-svn: 73093
2009-06-08 22:39:13 +00:00
Eli Friedman e9ff191459 Remove a few more vector builtins.
llvm-svn: 73022
2009-06-07 09:32:56 +00:00
Eli Friedman 5a996fc0fc Now that LLVM CodeGen can handle the generic variations a bit better,
get rid of a few more clang vector builtins.

llvm-svn: 73015
2009-06-07 07:12:56 +00:00
Eli Friedman 07bbeca406 PR4339: make sure to properly extend/trunc the index of a vector element
insert/extract; the relevant instructions are defined to take only an 
i32.

llvm-svn: 73005
2009-06-06 19:09:26 +00:00
Eli Friedman 5f75ff84b7 Test changes to account for removed builtins.
llvm-svn: 73004
2009-06-06 18:15:42 +00:00
Daniel Dunbar feeeda70e2 weak_import should not make definitions have weak linkage.
- <rdar://problem/6948703> clang treats weak_import like weak

llvm-svn: 72967
2009-06-05 22:58:34 +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
Eli Friedman dd27484888 PR4316: Fix IRGen for cast-to-union extension.
llvm-svn: 72803
2009-06-03 20:45:06 +00:00
Daniel Dunbar 877b30f83c Driver: Support -mllvm; this just forwards options to clang-cc.
llvm-svn: 72780
2009-06-03 16:16:27 +00:00
Daniel Dunbar 4b665ebb01 Add clang-cc support for -disable-llvm-optzns.
- Avoids running any LLVM optimizations, even at -O2, etc., while still keeping
   any language changes these optimizations imply.

llvm-svn: 72742
2009-06-02 22:07:45 +00:00
Eli Friedman cb9d07caeb Add support for __builtin_unwind_init.
Also, committing an #if 0'ed __builtin_setjmp and __builtin_longjmp 
implementation I've had sitting in my tree for a while.  I haven't 
enabled it because the LLVM backend support isn't complete yet.

llvm-svn: 72727
2009-06-02 09:37:50 +00:00
Eli Friedman e32c02114f PR4289: Make sure "&func" has the right LLVM type when "func" is a
K&R-style definition.

llvm-svn: 72690
2009-06-01 10:04:20 +00:00
Eli Friedman 202a68a917 Simplify run line.
llvm-svn: 72687
2009-06-01 08:55:08 +00:00
Mike Stump 2346cd2a10 Improve __builtin_nanf support; we now can deal with them as constants.
llvm-svn: 72607
2009-05-30 03:56:50 +00:00
Eli Friedman 9444638e4e Re-add a slightly more general version of the check from r72578; it is
actually necessary in some obscure cases.

llvm-svn: 72585
2009-05-29 19:23:46 +00:00
Mike Stump de83126b80 We don't want to validate bad code,
llvm-svn: 72574
2009-05-29 16:24:13 +00:00
Mike Stump f9f89a3fee Note another case that doesn't work yet.
llvm-svn: 72573
2009-05-29 16:12:36 +00:00
Mike Stump df0fe27b66 Fixup the rest of the trivial cases of the codegen of volatile. If
any body can spot codegen bugs with volatile, or knows of any in the
bug database, let me know.

llvm-svn: 72572
2009-05-29 15:46:01 +00:00
Eli Friedman 2a69547f38 PR4281: Fix bogus CodeGen assertion. The issue is that
getUnqualifiedType() doesn't strip off all qualifiers for non-canonical 
types.

llvm-svn: 72552
2009-05-28 23:04:00 +00:00
Daniel Dunbar 16f422ec86 Fix a use-of-undefined, IRgen expects the RValue for "void" to be a scalar RValue.
llvm-svn: 72504
2009-05-27 23:45:33 +00:00
Mike Stump de79ea2f51 Update comment.
llvm-svn: 72444
2009-05-26 23:35:31 +00:00
Mike Stump 6adbd62790 And an additional testcase that also works.
llvm-svn: 72441
2009-05-26 23:10:55 +00:00
Mike Stump ec3cbfe8c6 Fixup codegen for volatile structs in the trivial cases (a a=a and a=a=a).
llvm-svn: 72439
2009-05-26 22:03:21 +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
Eli Friedman 895771aa4b Handle the edge case of a weak function with incomplete type correctly.
Found by code inspection; I haven't seen this in real-world code.

llvm-svn: 72408
2009-05-26 01:22:57 +00:00
Mike Stump c63428b192 Fixup codegen for __block int i; i += rhs();. Should also slightly
improve codegen in some cases.

llvm-svn: 72273
2009-05-22 19:07:20 +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
Mike Stump aed08f9929 Fixup blocks codegen for { __block i; i = rhs(); }, we want the rhs
evaluated first.  This can also improve codegen just a bit as we might
have another register to play with for the evaluation of the rhs.

llvm-svn: 72226
2009-05-21 21:05:15 +00:00
Daniel Dunbar 018958d94d Update test
llvm-svn: 72110
2009-05-19 16:09:59 +00:00
Eli Friedman 45966b4671 Remove the -arch option from clang-cc: for all practical purposes, it's
redundant with -triple.

llvm-svn: 72108
2009-05-19 11:12:40 +00:00
Anders Carlsson 8dd2947696 Remove an unused builtin.
llvm-svn: 72033
2009-05-18 19:25:54 +00:00
Anders Carlsson 2081200b8c Add 'cmp' SSE builtins and get rid of a bunch of other builtins.
llvm-svn: 72032
2009-05-18 19:16:46 +00:00
Daniel Dunbar 2daacd1f08 Avoid generating temp in source directory
llvm-svn: 71776
2009-05-14 17:00:11 +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 afde259240 implement __sync_synchronize and __sync_lock_release,
rdar://6880573

llvm-svn: 71637
2009-05-13 04:46:13 +00:00
Chris Lattner e541ea3a61 implement l-value codegen of comma expr
llvm-svn: 71595
2009-05-12 21:28:12 +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 e92449e4cc Make cleanup-stack.c test stronger, and work in release-asserts mode.
llvm-svn: 71484
2009-05-11 22:30:29 +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
Chris Lattner da38fda583 force a target triple so that the right greppable output happens.
llvm-svn: 71361
2009-05-09 17:36:58 +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 5b9241b2a6 Fix the atomics sema code to convert operands to the argument types
of the underlying _N builtin, not the the type of the pointee of the
actual type.  This ensures that atomics involving pointers end up
using the correct integer type when they are resolved, avoiding
aborts in codegen.

llvm-svn: 71218
2009-05-08 15:36:58 +00:00
Chris Lattner dc04654697 reimplement __sync_* builtins to be variadic and to follow the same
semantic rules that gcc and icc use.  This implements the variadic
and concrete versions as builtins and has sema do the 
disambiguation.  There are probably a bunch of details to finish up
but this seems like a large monotonic step forward :)

llvm-svn: 71212
2009-05-08 06:58:22 +00:00
Eli Friedman 7ce29a18e1 Fix crash with constant initialization of bit-fields in unions.
llvm-svn: 71194
2009-05-07 23:42:42 +00:00
Daniel Dunbar 4dbaaa6f43 Improve handling of (X86) target features.
- This is a WIP...

 - This adds -march= handling to the driver, and fixes the defaulting
   of -mcpu on Darwin (which was using the wrong test).

Instead of handling -m{sse, ...} in the driver, pass them to clang-cc as
 -target-feature [+-]name

In clang-cc, communicate with the (clang) target to discover the legal
features of a target, and the features which are enabled based on
-mcpu. This is currently hardcoded just enough to not be a feature
regression, we need to get this information from the backend's
TableGen information somehow.

This is used to construct the full list of features which are being
used, which is in turn used to initialize the predefines.

llvm-svn: 71061
2009-05-06 03:16:41 +00:00
Chris Lattner 36797ab251 When defining a function whose type has no prototype, make an effort
to go back and clean up existing uses of the bitcasted function.  This
is not just an optimization: it is required for correctness to get
always inline functions to work, see testcases in function-attributes.c.

llvm-svn: 70971
2009-05-05 06:16:31 +00:00
Eli Friedman 2ad7e17096 PR4143: don't crash generating debug info for incomplete enum types.
llvm-svn: 70825
2009-05-04 04:39:55 +00:00
Eli Friedman 5b73b5e197 PR4134: Implement __builtin_extract_return_addr.
llvm-svn: 70794
2009-05-03 19:23:23 +00:00
Eli Friedman c0042d804c PR4133: fix always_inline implementation to be consistent with gcc.
llvm-svn: 70786
2009-05-03 18:13:43 +00:00
Chris Lattner 61af27860d look at the right operand when increasing the size of an asm output,
this fixes http://llvm.org/bugs/show_bug.cgi?id=3373#c20

llvm-svn: 70685
2009-05-03 09:05:53 +00:00
Chris Lattner cc1cde9c57 allow references to the larger value in a tied constraint
from the asm string, but reject references to the smaller one.

llvm-svn: 70679
2009-05-03 08:32:32 +00:00
Chris Lattner 59c3a9cd54 add support for tying asm operands where the result is smaller than
the input.  This is part of PR3373.

llvm-svn: 70677
2009-05-03 08:21:20 +00:00
Daniel Dunbar c7121faa71 Remove typo
llvm-svn: 70676
2009-05-03 08:00:14 +00:00
Chris Lattner 10f221f321 implement support for asm outputs targetting non-simple lvalue destinations
like bitfields.  incidentally llvm-gcc crashes on this sort of thing also. :)

llvm-svn: 70675
2009-05-03 07:53:25 +00:00
Chris Lattner b65933eaa2 handle codegen of asms where a small input is tied to a large output.
llvm-svn: 70672
2009-05-03 07:27:51 +00:00
Douglas Gregor 8d9c509975 Implement bit-field promotion rules for C99. Fixes PR3500.
llvm-svn: 70571
2009-05-01 20:41:21 +00:00
Douglas Gregor 72a57b89aa Add testcase that illustrates the problem from r69699 regarding tentative definitions of statics
llvm-svn: 70543
2009-05-01 15:45:53 +00:00
Mike Stump d898026e8a Don't assert when we think we need copy/dispose, but don't need them.
Radar 6838889

llvm-svn: 70525
2009-05-01 01:31:57 +00:00
Anders Carlsson b4e463287e Don't use indirect memory destinations for inline asm. Fixes 6841383.
llvm-svn: 70523
2009-05-01 00:16:04 +00:00
Eli Friedman 902fddd1cf Fix for PR4108: be a bit looser with the casts that we accept in
constant initializers.

llvm-svn: 70483
2009-04-30 07:03:22 +00:00
Chris Lattner 7d4f5c47ce only support int128_t on 64-bit and larger targets. 32-bit targets don't
have support for __divti3 and friends.

llvm-svn: 70480
2009-04-30 06:18:40 +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
Douglas Gregor 76fe50c654 Improve compatibility with GCC regarding inline semantics in GNU89
mode and in the presence of __gnu_inline__ attributes. This should fix
both PR3989 and PR4069.

As part of this, we now keep track of all of the attributes attached
to each declaration even after we've performed declaration
merging. This fixes PR3264.

llvm-svn: 70292
2009-04-28 06:37:30 +00:00
Eli Friedman 2b680b43e9 Simplify the scheme used for keywords, and change the classification
scheme to be more useful.

The new scheme introduces a set of categories that should be more 
readable, and also reflects what we want to consider as an extension 
more accurately.  Specifically, it makes the "what is a keyword" 
determination accurately reflect whether the keyword is a GNU or 
Microsoft extension.

I also introduced separate flags for keyword aliases; this is useful 
because the classification of the aliases is mostly unrelated to the 
classification of the original keyword.

This patch treats anything that's in the implementation 
namespace (prefixed with "__", or "_X" where "X" is any upper-case 
letter) as a keyword without marking it as an extension.  This is 
consistent with the standards in that an implementation is allowed to define 
arbitrary extensions in the implementation namespace without violating 
the standard. This gets rid of all the nasty "extension used" warnings 
for stuff like __attribute__ in -pedantic mode.  We still warn for 
extensions outside of the the implementation namespace, like typeof.
If someone wants to implement -Wextensions or something like that, we 
could add additional information to the keyword table.

This also removes processing for the unused "Boolean" language option; 
such an extension isn't supported on any other C implementation, so I 
don't see any point to adding it.

The changes to test/CodeGen/inline.c are required because previously, we 
weren't actually disabling the "inline" keyword in -std=c89 mode.

I'll remove Boolean and NoExtensions from LangOptions in a follow-up 
commit.

llvm-svn: 70281
2009-04-28 03:13:54 +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
Anders Carlsson 6f5c15688d When calling the cleanup function specified by __attribute__((cleanup)), make sure to bitcast the argument so it has the same type as the first argument of the cleanup function. Fixes <rdar://problem/6827047>.
llvm-svn: 70098
2009-04-26 00:34:20 +00:00
Chris Lattner a4185c543e fix PR4067: [Linux kernel] cannot aggregate codegen stmtexpr as lvalue
llvm-svn: 70067
2009-04-25 19:35:26 +00:00
Douglas Gregor 89c8e000cf Fix handling of C99 "extern inline" semantics when dealing with
multiple declarations of the function. Should fix PR3989 and
<rdar://problem/6818429>.

llvm-svn: 69905
2009-04-23 18:22:55 +00:00
Devang Patel a6acb390e7 Handle corner case where clang-cc is invoked directly to compile preprocessed source file without -main-file-name. In this case, CDDebugInfo is not able identify correct main source file becase SM.isFromMainFile() returns true for locations from header files as well as locations from main source file.
This patch takes conservative approach by not emitting more then one compile unit with isMain bit set.

llvm-svn: 69902
2009-04-23 18:09:16 +00:00
Chris Lattner f8dc07369a Fix some mishandling of the attr(gnu_inline) mode when used with
extern.  Previously we would warn about it and ignore the attribute.
This is incorrect, it should be handled as a c89 "extern inline" 
function.  Many thanks to Matthieu Castet for pointing this out and
beating me over the head until I got it.

PR3988: extern inline function are not externally visible
llvm-svn: 69756
2009-04-22 00:03:30 +00:00
Chris Lattner 2f343dd5c8 fix PR4026: Clang can't codegen __func__ without implicit cast
llvm-svn: 69747
2009-04-21 23:00:09 +00:00
Chris Lattner a9aeea9f27 use of predefined identifiers like __func__ at global scope warn in sema,
but crashed codegen.  Fix this to report the name of the llvm function.
This fixes rdar://6808051

llvm-svn: 69658
2009-04-21 04:41:23 +00:00
Chris Lattner ddf6ca0355 the __gnuc_inline__ attribute is actually named __gnu_inline__,
PR4023

llvm-svn: 69618
2009-04-20 19:12:28 +00:00
Devang Patel 45dfbd16b0 Add test case to check line number in debug info.
llvm-svn: 69617
2009-04-20 19:07:55 +00:00
Eli Friedman bc633beda4 PR3247: Handle a couple of cases where we weren't emitting VLA sizes (and
subsequently crashed).

llvm-svn: 69567
2009-04-20 03:54:15 +00:00
Eli Friedman 3253e189c6 PR3248: Make sure the evaluate the operand of a sizeof when it has a VLA type.
Adapted from patch by Tim Northover.

llvm-svn: 69566
2009-04-20 03:21:44 +00:00
Eli Friedman daea3f62b5 Print an error for uses of __thread on targets which don't support it.
llvm-svn: 69553
2009-04-19 21:48:33 +00:00
Eli Friedman 4f856744e5 PR3853: Add CodeGen support for __thread.
llvm-svn: 69545
2009-04-19 21:05:03 +00:00
Chris Lattner c2e868fd14 fix incorrect lowering of __builtin_ia32_shufpd, rdar://6803924
llvm-svn: 69428
2009-04-18 07:01:54 +00:00
Chris Lattner 032f7665d0 rename file.
llvm-svn: 69427
2009-04-18 07:00:54 +00:00
Chris Lattner 85e4dd4055 don't dump .ll file in this dir.
llvm-svn: 69426
2009-04-18 07:00:06 +00:00
Daniel Dunbar c3e7cff6d3 Attributes on block functions were not being set.
- <rdar://problem/6800351> clang not producing correct large struct
   return code for Blocks

llvm-svn: 69337
2009-04-17 00:48:04 +00:00
Daniel Dunbar 426b5cf16a Ensure that the most recent declaration of a tentative definition wins
when generating a common definition.

llvm-svn: 69287
2009-04-16 15:34:14 +00:00
Daniel Dunbar 7dd749e6fd Defer generation of tentative definitions.
- PR3980.

 - <rdar://problem/6762287> [irgen] crash when generating tentative
   definition of incomplete structure

 - This also avoids creating common definitions for things which are
   later overwritten.

 - XFAIL'ed external-defs.c, it isn't completing types properly yet.

llvm-svn: 69231
2009-04-15 22:08:45 +00:00
Devang Patel 9074ed8c6a Set DebugInfo at the beginning of GenerateBlockFunction().
llvm-svn: 69228
2009-04-15 21:51:44 +00:00
Chris Lattner e94e13ca35 remove #include of system header, making this a) not apple specific, and
b) test dramatically faster.

llvm-svn: 69135
2009-04-15 04:26:10 +00:00
Chris Lattner bae0e68930 Fix PR3988: extern inline functions get strong symbol definitions in
C99 mode.  This is a regression from an earlier patch of mine.

This also simplifies the linkage enums a bit.

llvm-svn: 69069
2009-04-14 20:25:53 +00:00
Chris Lattner 02e987f3e8 implement codegen support for __attribute((__gnuc_inline__)),
pulling some attribute munging stuff into GetLinkageForFunction.

This should fix PR3986

llvm-svn: 69045
2009-04-14 16:44:36 +00:00
Chris Lattner 92028dad66 defer emission of always_inline, extern_inline, and inline functions (when
not in c89 mode).

llvm-svn: 69032
2009-04-14 06:44:48 +00:00
Chris Lattner 256c9507c8 set the linkage of an inline function according to its language rules.
llvm-svn: 69030
2009-04-14 06:27:57 +00:00
Steve Naroff e4e55d2706 Fix crasher in ASTContext::getObjCEncodingForMethodDecl().
This was exposed as a result of something else that was recently fixed.

llvm-svn: 69004
2009-04-14 00:03:58 +00:00
Steve Naroff 84073ec51f Fixed crasher in <rdar://problem/6780904> [irgen] Assertion failed: (Result == conversionOK && "UTF-8 to UTF-16 conversion failed"), function GetAddrOfConstantCFString, file CodeGenModule.cpp, line 1063.
Still a diagnostic related FIXME (will discuss with Daniel/Fariborz offline).

llvm-svn: 68975
2009-04-13 19:08:08 +00:00
Chris Lattner 03a6cbbd91 pass -fblocks
llvm-svn: 68878
2009-04-11 19:49:49 +00:00
Fariborz Jahanian aae4349df9 Fixes a ir-gen crash for K&R style blocks.
llvm-svn: 68865
2009-04-11 17:55:15 +00:00
Daniel Dunbar 8c920c9220 Don't set both readnone and readonly.
llvm-svn: 68833
2009-04-10 22:14:52 +00:00
Daniel Dunbar d272cca527 Internal variables could mistakenly have "hidden" visibility when
their emission was deferred.
 - <rdar://problem/6775234> variables with internal linkage should not
   be exposed with -fvisibility=hidden.

llvm-svn: 68818
2009-04-10 20:26:50 +00:00
Mike Stump 6764593098 Fixup codegen for nested blocks that use copy/dispose in the inner
blocks, so that the outer blocks use it as well.  Radar 6762279

llvm-svn: 68811
2009-04-10 18:52:28 +00:00
Daniel Dunbar b041085c17 Add more builtin definitions, including strcmp.
- PR3964.

llvm-svn: 68710
2009-04-09 16:42:50 +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
Daniel Dunbar ea10ab668f Visibility attributes should only be set on definition.
llvm-svn: 68561
2009-04-07 22:36:33 +00:00
Eli Friedman 574c745370 Diagnose uses of function specifiers on declarations which don't declare
functions.  Fixes PR3941.

llvm-svn: 68541
2009-04-07 19:37:57 +00:00
Daniel Dunbar 4fab57ddea Implement __sync_{add,sub,and,or,xor}_and_fetch and
__sync_bool_compare_and_swap.
 - <rdar://problem/6762223> [sema/irgen] support
   __sync_bool_compare_and_swap and __sync_add_and_fetch

llvm-svn: 68482
2009-04-07 00:55:51 +00:00
Anton Korobeynikov 18e831dcc9 Testcase for regparm codegen
llvm-svn: 68415
2009-04-04 00:49:38 +00:00
Anders Carlsson 16b1461c21 Ignore plus operands when looking up the operand number from a named operand. This matches llvm-gcc and fixes PR3908.
llvm-svn: 68371
2009-04-03 05:57:08 +00:00
Fariborz Jahanian befc9dfbff Implement -fvisibility.
llvm-svn: 68369
2009-04-03 03:28:57 +00:00
Daniel Dunbar fd6cfcffa2 Add target hook for setting symbol prefix and section of unicode
string literals.

llvm-svn: 68363
2009-04-03 00:57:44 +00:00
Mike Stump d3e3885f2d Remove -ftrapu.
llvm-svn: 68330
2009-04-02 18:15:54 +00:00
Mike Stump 36c36ebc8b Oops, almost forgot the testcases.
llvm-svn: 68270
2009-04-02 01:14:26 +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 f77e292a0f Fix a subtle bug where the cleanup scope entries had a dangling block reference
- <rdar://problem/6732143> Crash when generating @synchronize for
   zero-cost exception

 - Thanks to Anders for helping track down the problem.

llvm-svn: 68186
2009-04-01 04:37:47 +00:00
Eli Friedman 1c3fb22cad Fix pascal string support; testcase from mailing list message.
llvm-svn: 68181
2009-04-01 03:17:08 +00:00
Daniel Dunbar 08b216abf1 Add Target hooks for IRgen of [cf]string literals.
- Notably, set section on cfstring literal string data (for now, this
   is done everywhere because it matches what we were already doing
   for the CFString data itself)

 - <rdar://problem/6599098> [irgen] linker requires objc string data
   to go into cstring

llvm-svn: 68160
2009-03-31 23:42:16 +00:00
Chris Lattner f41e87f4cd Change UsedArray to be a vector of WeakVH to fix a dangling pointer problem that occurs when
attribute(used) and asm renaming are used together.

llvm-svn: 68155
2009-03-31 22:37:52 +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
Chris Lattner 5d68896c7b Codegen sometimes crashes on comparisons that aren't legal, just
disable this feature for now, to err on the side of rejecting instead
of sometimes crashing.  rdar://6326239

llvm-svn: 68088
2009-03-31 07:46:52 +00:00
Eli Friedman 09a9b6e335 Move where block-related variables are initialized so that block
types don't get generated when blocks aren't used.

llvm-svn: 67898
2009-03-28 03:24:54 +00:00
Eli Friedman 7c7a0e86ae Fix silly mistake in test.
llvm-svn: 67897
2009-03-28 03:14:28 +00:00
Eli Friedman e381f7e3e9 Misc small fixes/cleanups/comment changes.
llvm-svn: 67895
2009-03-28 02:45:41 +00:00
Eli Friedman 8b7b1b1aee Change compound assignment operators to keep track of both the promoted
LHS type and the computation result type; this encodes information into 
the AST which is otherwise non-obvious.  Fix Sema to always come up with the 
right answer for both of these types.  Fix IRGen and the analyzer to 
account for these changes.  This fixes PR2601.  The approach is inspired 
by PR2601 comment 2.

Note that this changes real *= complex in CodeGen from a silent 
miscompilation to an explicit error.

I'm not really sure that the analyzer changes are correct, or how to 
test them... someone more familiar with the analyzer should check those 
changes.

llvm-svn: 67889
2009-03-28 01:22:36 +00:00
Douglas Gregor 8aa6bf5b8e Fix <rdar://problem/6724396>, where we were silently dropping
GNU-style array designators, causing us to emit broken initializers.

llvm-svn: 67878
2009-03-27 23:40:29 +00:00
Daniel Dunbar adf511c056 Driver: Forward -fno-common to clang.
- <rdar://problem/6710978> ccc/clang-driver ignore -fno-common

llvm-svn: 67762
2009-03-26 16:37:00 +00:00
Eli Friedman 8d7ff4098c Fix for PR3869: actually enforce that the argument of an indirect goto
is of type void*.  I'll try to add the appropriate checking later.

llvm-svn: 67721
2009-03-26 00:18:06 +00:00