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bbce41f698
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28719 Commits

Author SHA1 Message Date
Nick Lewycky
bbce41f698 Don't remove aggregate-typed module level constants before encoding functions 
since functions may contain aggregate constants too.

llvm-svn: 73220
 2009-06-12 05:20:12 +00:00
Eli Friedman
74e9f6c070 Misc x86 README updates: remove a couple of already-fixed issues, 
add a few suggestions from looking at some assembly code.

llvm-svn: 73210
 2009-06-11 23:07:04 +00:00
Bruno Cardoso Lopes
2b429fb48f Use forward declarations and move TargetELFWriterInfo impl to a new file. 
llvm-svn: 73209
 2009-06-11 22:13:00 +00:00
Bruno Cardoso Lopes
9b68e8653f Support for ELF Visibility 
Emission for globals, using the correct data sections
Function alignment can be computed for each target using TargetELFWriterInfo
Some small fixes

llvm-svn: 73201
 2009-06-11 19:16:03 +00:00
Chris Lattner
e0360f8ae8 Fix 4366: store to null in non-default addr space should not be 
turned into unreachable.

llvm-svn: 73195
 2009-06-11 17:54:56 +00:00
Sanjiv Gupta
4d678059ba Generate libcalls for floating point arithmetic and casting operations. 
llvm-svn: 73194
 2009-06-11 16:50:48 +00:00
Duncan Sands
9b5e3effef Cosmetic changes to parameter attribute verification. 
llvm-svn: 73188
 2009-06-11 08:11:03 +00:00
Duncan Sands
c12241a948 Avoid leaking memory in an error path. Noticed 
by cppcheck.

llvm-svn: 73187
 2009-06-11 08:09:49 +00:00
Sanjiv Gupta
1f8f8ce400 More formatting. 
llvm-svn: 73185
 2009-06-11 06:55:48 +00:00
Sanjiv Gupta
04cb690c99 Fixed source comments. No functionality change. 
llvm-svn: 73184
 2009-06-11 06:49:55 +00:00
Oscar Fuentes
c2d42ced17 CMake: Updated list of files on lib/CodeGen/CMakeLists.txt. 
llvm-svn: 73174
 2009-06-10 22:53:59 +00:00
Jay Foad
5affd7b2c9 Implement and use new method Function::hasAddressTaken(). 
llvm-svn: 73164
 2009-06-10 08:41:11 +00:00
Sanjiv Gupta
02c9163ae2 Remove warnings: no newline at end of file. 
llvm-svn: 73156
 2009-06-10 03:42:13 +00:00
Anton Korobeynikov
1447d902e3 Silence a warning 
llvm-svn: 73152
 2009-06-09 23:00:39 +00:00
Jay Foad
209162fd09 Remove an unused function SafeToDestroyConstant(). Rename an almost 
identical function ConstantIsDead() to SafeToDestroyConstant(), to
emphasise the connection with Constant::destroyConstant().

llvm-svn: 73149
 2009-06-09 21:37:11 +00:00
Bill Wendling
23d6f0b5c7 Simplified logic of this if-then statement to reduce nesting. No functionality 
change.

llvm-svn: 73143
 2009-06-09 20:08:51 +00:00
Owen Anderson
996a7f7f37 Add the beginnings of an implementatation of lazy liveness analysis, based on "Fast Liveness Checking for SSA-form Programs" by Boissinot, et al. 
This is still very early, hasn't been tested, and is not yet well documented.  More to come soon.

llvm-svn: 73141
 2009-06-09 19:30:45 +00:00
Dan Gohman
389d27ecdd Use expandCodeFor instead of expand when the result will be 
immediately casted. At present, this is just a minor code
simplification. In the future, the expansion code may be able
to make better choices if it knows what the desired result
type will be.

llvm-svn: 73137
 2009-06-09 17:18:38 +00:00
Sanjiv Gupta
2121a84223 PIC16 emits auto variables as globals. When optimizer removes a function entierly by estimating its side effects on globals, those globals(autos) without a function were not being printed by the Asm printer. 
llvm-svn: 73135
 2009-06-09 15:31:19 +00:00
Anton Korobeynikov
6dbf7b689c Typo 
llvm-svn: 73098
 2009-06-08 22:59:50 +00:00
Anton Korobeynikov
0677cee20d Revert hunk commited by accident 
llvm-svn: 73097
 2009-06-08 22:57:18 +00:00
Anton Korobeynikov
d08df21f36 The attached patches implement most of the ARM AAPCS-VFP hard float 
ABI. The missing piece is support for putting "homogeneous aggregates"
into registers.

Patch by Sandeep Patel!

llvm-svn: 73095
 2009-06-08 22:53:56 +00:00
Anton Korobeynikov
52b2898854 Separate V6 from V6T2 since the latter has some extra nice instructions 
llvm-svn: 73085
 2009-06-08 21:20:36 +00:00
Anton Korobeynikov
7e9e1b3e1f Add helper for checking of Thumb1 mode 
llvm-svn: 73080
 2009-06-08 20:31:02 +00:00
Bill Wendling
b0c6fe320d Revert r72898. It does not solve the problem I want it to solve. 
llvm-svn: 73075
 2009-06-08 18:18:28 +00:00
Bruno Cardoso Lopes
472eb7c299 Delete comment and fix typo 
llvm-svn: 73040
 2009-06-07 21:49:11 +00:00
Bruno Cardoso Lopes
f7d71605a6 Fix wrong elf class and byte order initializations. 
llvm-svn: 73039
 2009-06-07 21:33:20 +00:00
Bruno Cardoso Lopes
cfa07266cf Simple ELF32/64 binary files can now be emitted for x86 and x86_64 without 
relocation sections.

llvm-svn: 73038
 2009-06-07 21:22:38 +00:00
Eli Friedman
2964aa5a38 Tweak the expansion code for BIT_CONVERT to generate better code 
converting from an MMX vector to an i64.

llvm-svn: 73024
 2009-06-07 09:41:57 +00:00
Eli Friedman
1609a6524f Get rid of some unnecessary code. 
llvm-svn: 73017
 2009-06-07 07:28:45 +00:00
Nick Lewycky
71dc3c5d85 Create FunctionType::isValidArgumentType to go along with isValidReturnType. 
Also create isValidElementType for ArrayType, PointerType, StructType and
VectorType.

Make LLParser use them. This closes up some holes like an assertion failure on:

  %x = type {label}

but largely doesn't change any semantics. The only thing we accept now which
we didn't before is vectors of opaque type such as "<4 x opaque>". The opaque
can be resolved to an int or float when linking.

llvm-svn: 73016
 2009-06-07 07:26:46 +00:00
Eli Friedman
d4b463b0dc Slightly generalize the code that handles shuffles of consecutive loads 
on x86 to handle more cases.  Fix a bug in said code that would cause it 
to read past the end of an object.  Rewrite the code in 
SelectionDAGLegalize::ExpandBUILD_VECTOR to be a bit more general. 
Remove PerformBuildVectorCombine, which is no longer necessary with 
these changes.  In addition to simplifying the code, with this change, 
we can now catch a few more cases of consecutive loads.

llvm-svn: 73012
 2009-06-07 06:52:44 +00:00
Nick Lewycky
a96000f2bf Remove cyclic MDNode detection. Any attempt to create a cyclic MDNode will 
crash LLVM first.

llvm-svn: 73011
 2009-06-07 04:03:01 +00:00
Nick Lewycky
3a8ea63343 Refuse metadata* type for function arguments. 
llvm-svn: 73010
 2009-06-07 01:45:11 +00:00
Eli Friedman
2b6cb1684f PR3628: Add patterns to match SHL/SRL/SRA to the corresponding Altivec 
instructions.

llvm-svn: 73009
 2009-06-07 01:07:55 +00:00
Nick Lewycky
1a54547335 Don't crash on multiple return value with no obvious inserted value. 
Fixes PR4314.

llvm-svn: 73007
 2009-06-06 23:13:08 +00:00
Eli Friedman
770f633389 PR4340: Run SimplifyDemandedVectorElts on insertelement instructions; 
sometimes it can find simplifications that won't be found otherwise.

llvm-svn: 73006
 2009-06-06 20:08:03 +00:00
Jay Foad
a442a46de9 Use cast<> instead of dyn_cast<> for things that are known to be 
Instructions.

llvm-svn: 73002
 2009-06-06 17:49:35 +00:00
Dan Gohman
5470ba421d Rename UnknownValue to CouldNotCompute, since it holds an instance of 
SCEVCouldNotCompute, and not SCEVUnknown.

llvm-svn: 72999
 2009-06-06 14:37:11 +00:00
Eli Friedman
2dadbd05f9 Fix the expansion for CONCAT_VECTORS so that it doesn't create illegal 
types.

llvm-svn: 72993
 2009-06-06 07:08:26 +00:00
Eli Friedman
85675e8547 Factor out a couple of helpers. 
llvm-svn: 72992
 2009-06-06 07:04:42 +00:00
Eli Friedman
4395222136 Avoid crashing on a variable-index insertelement with element type i16. 
llvm-svn: 72991
 2009-06-06 06:32:50 +00:00
Eli Friedman
e546f94ef5 Get rid of some bogus patterns for X86vzmovl. Don't create VZEXT_MOVL 
nodes for vectors with an i16 element type.  Add an optimization for 
building a vector which is all zeros/undef except for the bottom 
element, where the bottom element is an i8 or i16.

llvm-svn: 72988
 2009-06-06 06:05:10 +00:00
Eli Friedman
539325c8e7 Fix an obvious typo. 
llvm-svn: 72987
 2009-06-06 05:55:37 +00:00
Bruno Cardoso Lopes
bb6a353eb2 x86_64 now uses the correct ELF e_machine type 
llvm-svn: 72986
 2009-06-06 04:29:16 +00:00
Eli Friedman
1227d199be Get rid of a bogus pattern that interferes with optimization. 
llvm-svn: 72985
 2009-06-06 04:17:04 +00:00
Eli Friedman
05eef883e8 PR2598: make sure to expand illegal forms of integer/floating-point 
conversions for x86, like <2 x i32> -> <2 x float> and <4 x i16> -> 
<4 x float>.

llvm-svn: 72983
 2009-06-06 03:57:58 +00:00
Bruno Cardoso Lopes
b3b24681ca Remove elf specific info from ELFWriter.h to Elf.h. Code cleanup and more comments added 
llvm-svn: 72982
 2009-06-06 03:56:29 +00:00
Eli Friedman
c7d37a1c3a Make SINT_TO_FP/UINT_TO_FP vector legalization queries query on the 
integer type to be consistent with normal operation legalization.  No visible
change because nothing is actually using this at the moment.

llvm-svn: 72980
 2009-06-06 03:27:50 +00:00
Devang Patel
a6b3b19170 Simplify. 
llvm-svn: 72970
 2009-06-05 23:08:56 +00:00