Commit Graph

1187 Commits

Author SHA1 Message Date
Manman Ren
7d318bd116 Debug Info: drop debug info via upgrading path if version number does not match.
Add a helper function getDebugInfoVersionFromModule to return the debug info
version number for a module.

"Verifier/module-flags-1.ll" checks for verification errors.
It will seg fault when calling getDebugInfoVersionFromModule because of the
incorrect format for module flags in the testing case. We make
getModuleFlagsMetadata more robust by checking for error conditions.

PR17982


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196158 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-02 21:29:56 +00:00
Rafael Espindola
edeaa6454e Make it explicit that nulls are not allowed in names.
The object files we support use null terminated strings, so there is no way to
support these.

This patch adds an assert to catch bad API use and an error check in the .ll
parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195155 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-19 21:12:39 +00:00
Matt Arsenault
59d3ae6cdc Add addrspacecast instruction.
Patch by Michele Scandale!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194760 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-15 01:34:59 +00:00
Juergen Ributzka
623d2e618f [Stackmap] Add AnyReg calling convention support for patchpoint intrinsic.
The idea of the AnyReg Calling Convention is to provide the call arguments in
registers, but not to force them to be placed in a paticular order into a
specified set of registers. Instead it is up tp the register allocator to assign
any register as it sees fit. The same applies to the return value (if
applicable).

Differential Revision: http://llvm-reviews.chandlerc.com/D2009

Reviewed by Andy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194293 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-08 23:28:16 +00:00
Rafael Espindola
19794da02c Remove linkonce_odr_auto_hide.
linkonce_odr_auto_hide was in incomplete attempt to implement a way
for the linker to hide symbols that are known to be available in every
TU and whose addresses are not relevant for a particular DSO.

It was redundant in that it all its uses are equivalent to
linkonce_odr+unnamed_addr. Unlike those, it has never been connected
to clang or llvm's optimizers, so it was effectively dead.

Given that nothing produces it, this patch just nukes it
(other than the llvm-c enum value).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193865 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-01 17:09:14 +00:00
Andrew Trick
2ddc56dec8 Add new calling convention for WebKit Java Script.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193812 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-31 22:12:01 +00:00
Shuxin Yang
69bd41dfe3 Revert r193251 : Use address-taken to disambiguate global variable and indirect memops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193489 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-27 03:08:44 +00:00
Shuxin Yang
8e3851a6eb Use address-taken to disambiguate global variable and indirect memops.
Major steps include:
 1). introduces a not-addr-taken bit-field in GlobalVariable
 2). GlobalOpt pass sets "not-address-taken" if it proves a global varirable 
    dosen't have its address taken.
 3). AA use this info for disambiguation. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193251 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-23 17:28:19 +00:00
Rafael Espindola
1a525e8c80 Add a GlobalAlias::isValidLinkage to reduce code duplication.
Thanks to Reid Kleckner for the suggestion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192298 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-09 16:07:32 +00:00
Rafael Espindola
2def17935c Add support for aliases with linkonce_odr.
This will be used to extend constructor aliases in clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192066 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-06 15:10:43 +00:00
Rafael Espindola
8819c84aed Remove several unused variables.
Patch by Alp Toker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191757 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-01 13:32:03 +00:00
Manman Ren
804f034bd1 AutoUpgrade: upgrade from scalar TBAA format to struct-path aware TBAA format.
We treat TBAA tags as struct-path aware TBAA format when the first operand
is a MDNode and the tag has 3 or more operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191593 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-28 00:22:27 +00:00
Peter Collingbourne
1e3037f0be Implement function prefix data as an IR feature.
Previous discussion:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-July/063909.html

Differential Revision: http://llvm-reviews.chandlerc.com/D1191

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190773 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-16 01:08:15 +00:00
Benjamin Kramer
55c06ae7af Revert "Give internal classes hidden visibility."
It works with clang, but GCC has different rules so we can't make all of those
hidden. This reverts commit r190534.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190536 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-11 18:05:11 +00:00
Benjamin Kramer
15f387c93e Give internal classes hidden visibility.
Worth 100k on a linux/x86_64 Release+Asserts clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190534 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-11 17:42:27 +00:00
Andrea Di Biagio
5768bb8d77 Add function attribute 'optnone'.
This function attribute indicates that the function is not optimized
by any optimization or code generator passes with the 
exception of interprocedural optimization passes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189101 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-23 11:53:55 +00:00
Charles Davis
ac226bbf45 Target/X86: Add explicit Win64 and System V/x86-64 calling conventions.
Summary:
This patch adds explicit calling convention types for the Win64 and
System V/x86-64 ABIs. This allows code to override the default, and use
the Win64 convention on a target that wants to use SysV (and
vice-versa). This is needed to implement the `ms_abi` and `sysv_abi` GNU
attributes.

Reviewers:

CC:

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186144 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-12 06:02:35 +00:00
Nick Lewycky
dc89737bcd Extend 'readonly' and 'readnone' to work on function arguments as well as
functions. Make the function attributes pass add it to known library functions
and when it can deduce it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185735 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-06 00:29:58 +00:00
Michael Gottesman
2253a2f52f Added support for the Builtin attribute.
The Builtin attribute is an attribute that can be placed on function call site that signal that even though a function is declared as being a builtin,

rdar://problem/13727199

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185049 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-27 00:25:01 +00:00
Rafael Espindola
dd5af27a74 keep only the StringRef version of getFileOrSTDIN.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184826 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-25 05:28:34 +00:00
Diego Novillo
77226a03dc Add a new function attribute 'cold' to functions.
Other than recognizing the attribute, the patch does little else.
It changes the branch probability analyzer so that edges into
blocks postdominated by a cold function are given low weight.

Added analysis and code generation tests.  Added documentation for the
new attribute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182638 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-24 12:26:52 +00:00
Dmitri Gribenko
5c332dbd30 Add ArrayRef constructor from None, and do the cleanups that this constructor enables
Patch by Robert Wilhelm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181138 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05 00:40:33 +00:00
Eli Bendersky
59eb5eeca7 Fix for PR 14965: Better error message for GEP with partially defined contents
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180030 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 17:03:42 +00:00
Stephen Lin
b0aeb3e077 Move 'kw_align' case to proper section, reorganize function attribute keyword case statements to be consistent with r179119
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179948 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-20 13:16:13 +00:00
Stephen Lin
456ca048af Add CodeGen support for functions that always return arguments via a new parameter attribute 'returned', which is taken advantage of in target-independent tail call opportunity detection and in ARM call lowering (when placed on an integral first parameter).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179925 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-20 05:14:40 +00:00
Bill Wendling
c0b4b6724c Fix comment. Patch by Stephen Lin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179780 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18 18:30:16 +00:00
Chandler Carruth
239e1e4938 Rationalize the formatting of these case labels. Having two sorted
columns is essentially impossible to edit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179119 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09 19:46:46 +00:00
Kostya Serebryany
8eec41fc77 Unify clang/llvm attributes for asan/tsan/msan (LLVM part)
These are two related changes (one in llvm, one in clang).
LLVM: 
- rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode)
- rename thread_safety => sanitize_thread
- rename no_uninitialized_checks -> sanitize_memory

CLANG: 
- add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis))
- add __attribute__((no_sanitize_thread))
- add __attribute__((no_sanitize_memory))

for S in address thread memory
If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not
set llvm attribute sanitize_S


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176075 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26 06:58:09 +00:00
Bill Wendling
143d46476c Implement the NoBuiltin attribute.
The 'nobuiltin' attribute is applied to call sites to indicate that LLVM should
not treat the callee function as a built-in function. I.e., it shouldn't try to
replace that function with different code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175835 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22 00:12:35 +00:00
Chad Rosier
27d844f4d0 Update comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175209 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14 20:44:07 +00:00
Guy Benyei
87d0b9ed14 Add static cast to unsigned char whenever a character classification function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175006 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12 21:21:59 +00:00
Bill Wendling
f54676234a Merge the collected attributes into the call instruction's attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174955 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12 10:13:06 +00:00
Kostya Serebryany
ab39afa9d9 [tsan/msan] adding thread_safety and uninitialized_checks attributes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174864 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11 08:13:54 +00:00
Bill Wendling
3f87d23a3d Eat the alignment keyword if we're in an attribute group.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174846 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-10 23:15:51 +00:00
Bill Wendling
0f7422057e Use a 'continue' here to stop from double lexing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174833 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-10 10:12:50 +00:00
Bill Wendling
0b77866f93 TEMPORARY SYNTAX CHANGE!
The original syntax for the attribute groups was ambiguous. For example:

    declare void @foo() #1
    #0 = attributes { noinline }

The '#0' would be parsed as an attribute reference for '@foo' and not as a
top-level entity. In order to continue forward while waiting for a decision on
what the correct syntax is, I'm changing it to this instead:

     declare void @foo() #1
     attributes #0 = { noinline }

Repeat: This is TEMPORARY until we decide what the correct syntax should be.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174813 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-09 15:48:49 +00:00
Bill Wendling
baad55c3ab Parse the attribute group reference on a function.
Attribute references are of this form:

  define void @foo() #0 #1 #2 { ... }

Parse them for function attributes. If there's more than one reference, then
they are merged together.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174697 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08 06:32:06 +00:00
Bill Wendling
ea007fa608 Use ParseFnAttributeValuePairs instead of ParseOptionalFuncAttrs
The functionality of ParseOptionalFuncAttrs was there in
ParseFnAttributeValuePairs. So just use that instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174686 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08 00:52:31 +00:00
Bill Wendling
95ce4c2ffb Initial submission for the attribute group feature.
Attribute groups are of the form:

  #0 = attributes { noinline "no-sse" "cpu"="cortex-a8" alignstack=4 }

Target-dependent attributes are represented as strings. Attributes can have
optional values associated with them. E.g., the "cpu" attribute has the value
"cortex-a8".

Target-independent attributes are listed as enums inside the attribute classes.

Multiple attribute groups can be referenced by the same object. In that case,
the attributes are merged together.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174493 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-06 06:52:58 +00:00
Bill Wendling
ae510f3936 Use the do-while(0) thing for this #define.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174347 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05 07:19:31 +00:00
Michael Gottesman
a2de37c897 Added LLVM Asm/Bitcode Reader/Writer support for new IR keyword externally_initialized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174340 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05 05:57:38 +00:00
Bill Wendling
73dee180c8 Make sure that the Attribute object represents one attribute only.
Several places were still treating the Attribute object as respresenting
multiple attributes. Those places now use the AttributeSet to represent
multiple attributes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174003 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31 00:29:54 +00:00
Bill Wendling
a1683d6c48 Use the AttributeSet instead of AttributeWithIndex.
In the future, AttributeWithIndex won't be used anymore. Besides, it exposes the
internals of the AttributeSet to outside users, which isn't goodness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173603 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-27 02:24:02 +00:00
Bill Wendling
114baee1fa Add the IR attribute 'sspstrong'.
SSPStrong applies a heuristic to insert stack protectors in these situations:

* A Protector is required for functions which contain an array, regardless of
  type or length.

* A Protector is required for functions which contain a structure/union which
  contains an array, regardless of type or length.  Note, there is no limit to
  the depth of nesting.

* A protector is required when the address of a local variable (i.e., stack
  based variable) is exposed. (E.g., such as through a local whose address is
  taken as part of the RHS of an assignment or a local whose address is taken as
  part of a function argument.)

This patch implements the SSPString attribute to be equivalent to
SSPRequired. This will change in a subsequent patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173230 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23 06:41:41 +00:00
Tim Northover
0a29cb0454 Make APFloat constructor require explicit semantics.
Previously we tried to infer it from the bit width size, with an added
IsIEEE argument for the PPC/IEEE 128-bit case, which had a default
value. This default value allowed bugs to creep in, where it was
inappropriate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173138 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22 09:46:31 +00:00
Jordan Rose
7336f7febb Use hexDigitValue in LLLexer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172866 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-18 23:05:41 +00:00
David Tweed
d80d608f76 There was a switch fall-through in the parser for textual LLVM that caused
bogus comparison operands to default to eq/oeq. Fix that, fix a couple of
tests that accidentally passed and test for bogus comparison opeartors
explicitly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171733 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07 13:32:38 +00:00
Chandler Carruth
0b8c9a80f2 Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02 11:36:10 +00:00
Bill Wendling
94e94b3506 Use the predicate methods off of AttributeSet instead of Attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171257 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30 13:50:49 +00:00
James Molloy
67ae135759 Add a new attribute, 'noduplicate'. If a function contains a noduplicate call, the call cannot be duplicated - Jump threading, loop unrolling, loop unswitching, and loop rotation are inhibited if they would duplicate the call.
Similarly inlining of the function is inhibited, if that would duplicate the call (in particular inlining is still allowed when there is only one callsite and the function has internal linkage).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170704 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20 16:04:27 +00:00