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22997 Commits

Author SHA1 Message Date
Owen Anderson
6fbcec4778 Remove ADCE's ability to delete loops. This ability is now implemented in a 
safer manner by loop deletion.

llvm-svn: 51182
 2008-05-16 04:34:51 +00:00
Owen Anderson
791223eac7 Clean ups for loop deletion based on Chris' feedback. 
Also, use SCEV to determine the trip count of the loop, which is more powerful
and accurate that Loop::getTripCount.

llvm-svn: 51179
 2008-05-16 04:32:45 +00:00
Chris Lattner
00e8e1e258 implement PR2328. 
llvm-svn: 51176
 2008-05-16 02:59:42 +00:00
Dale Johannesen
ebc511c6aa Treat common as distinct from weak global on Darwin x86. 
llvm-svn: 51172
 2008-05-16 00:52:06 +00:00
Dan Gohman
fe7f6bc9ce Revert the change from r51157 in 
test/Verifier/2002-11-05-GetelementptrPointers.ll, which was incorrect.
Instead, fix getIndexedType to not follow pointer types, as
PointerType is a subclass of CompositeType.

llvm-svn: 51171
 2008-05-16 00:16:32 +00:00
Dan Gohman
2da4145cd8 Fix a bug in LoopStrengthReduce that caused it to emit IR with 
use-before-def. The problem comes up in code with multiple PHIs where
one PHI is being rewritten in terms of the other, but the other needs
to be casted first. LLVM rules requre the cast instruction to be
inserted after any PHI instructions, but when instructions were
inserted to replace the second PHI value with a function of the first,
they were ended up going before the cast instruction. Avoid this
problem by remembering the location of the cast instruction, when one
is needed, and inserting the expansion of the new value after it.

This fixes a bug that surfaced in 255.vortex on x86-64 when
instcombine was removed from the middle of the loop optimization
passes. 

llvm-svn: 51169
 2008-05-15 23:26:57 +00:00
Evan Cheng
73dadf21ce Fix typos and comments. 
llvm-svn: 51165
 2008-05-15 22:13:02 +00:00
Dale Johannesen
8e66b309b4 Allow an extra bit for CommonLinkage. 
This changes the .bc file format, but if I understand
how it works correctly, old .bc files continue to
be readable.

llvm-svn: 51161
 2008-05-15 20:49:28 +00:00
Nate Begeman
b38ee2e03b Actually scalarize the operand to BIT_CONVERT instead of asking someone to do 
something with a v1 type.

llvm-svn: 51160
 2008-05-15 20:40:58 +00:00
Dan Gohman
821bf58428 IR support for extractvalue and insertvalue instructions. Also, begin 
moving toward making structs and arrays first-class types.

llvm-svn: 51157
 2008-05-15 19:50:34 +00:00
Dan Gohman
48ac9aec33 Use static and anonymous namespaces consistently with other passes. 
llvm-svn: 51156
 2008-05-15 19:43:55 +00:00
Devang Patel
66480d1c07 Remove useless check. 
Patch by Matthijs Kooijman.

llvm-svn: 51154
 2008-05-15 18:04:29 +00:00
Evan Cheng
d86d86bbdf Disable JIT symbol table for now. 
llvm-svn: 51152
 2008-05-15 17:31:35 +00:00
Duncan Sands
130254e1ff Use of UINT_MAX requires climits, at least when 
compiling with gcc 4.3.

llvm-svn: 51145
 2008-05-15 11:22:50 +00:00
Gabor Greif
48ffb6c7dc Fix a bunch of 80col violations that arose from the Create API change. Tweak makefile targets to find these better. 
llvm-svn: 51143
 2008-05-15 10:04:30 +00:00
Evan Cheng
778a5e27b0 Make use of vector load and store operations to implement memcpy, memmove, and memset. Currently only X86 target is taking advantage of these. 
llvm-svn: 51140
 2008-05-15 08:39:06 +00:00
Nate Begeman
253fc69ff3 Move the operator new and operator delete out of line. This fixes an issue with 
operator new() referring to the static initTags function, which has to be in the 
same linkage unit as any file including User.h.

llvm-svn: 51136
 2008-05-15 01:23:11 +00:00
Dale Johannesen
809ad5df81 Don't assume underlying APInt type is limited 
to 64 bits.

llvm-svn: 51135
 2008-05-14 22:53:25 +00:00
Bill Wendling
c1d9f9604b Situations can arise when you have a function called that returns a 'void', but 
is bitcast to return a floating point value. The result of the instruction may
not be used by the program afterwards, and LLVM will happily remove all
instructions except the call. But, on some platforms, if a value is returned as
a floating point, it may need to be removed from the stack (like x87). Thus, we
can't get rid of the bitcast even if there isn't a use of the value.

llvm-svn: 51134
 2008-05-14 22:45:20 +00:00
Dale Johannesen
b9d2bc9303 Remove undefined behavior in hex string->APFloat 
conversion.  Try 0x1.0000a4p+0f.  Neil, please review.

llvm-svn: 51132
 2008-05-14 22:05:31 +00:00
Evan Cheng
e935a1ac40 Use a better idiom to silence compiler warnings. 
llvm-svn: 51131
 2008-05-14 21:08:07 +00:00
Chris Lattner
3d3dfa7b2c rename SimplifyCFG.cpp -> SimplifyCFGPass.cpp 
llvm-svn: 51130
 2008-05-14 20:38:44 +00:00
Evan Cheng
d4c4bd4241 Silence warnings. 
llvm-svn: 51129
 2008-05-14 20:33:21 +00:00
Evan Cheng
9d22a90b0b Really silence compiler warnings. 
llvm-svn: 51126
 2008-05-14 20:29:30 +00:00
Evan Cheng
1b39709701 Really silence compiler warnings. 
llvm-svn: 51123
 2008-05-14 20:26:35 +00:00
Dale Johannesen
8edeae6888 CommonLinkage (missed a file) 
llvm-svn: 51120
 2008-05-14 20:14:09 +00:00
Dale Johannesen
dcdf2760f2 Generated files for CommonLinkage. 
llvm-svn: 51119
 2008-05-14 20:13:36 +00:00
Dale Johannesen
768b6f281e Add CommonLinkage; currently tentative definitions 
are represented as "weak", but there are subtle differences
in some cases on Darwin, so we need both.  The intent
is that "common" will behave identically to "weak" unless
somebody changes their target to do something else.
No functional change as yet.

llvm-svn: 51118
 2008-05-14 20:12:51 +00:00
Evan Cheng
e7684b9e91 Silence some compiler warnings. 
llvm-svn: 51115
 2008-05-14 20:07:51 +00:00
Devang Patel
047ba6df54 Simplify internalize pass. Add test case. 
Patch by Matthijs Kooijman!

llvm-svn: 51114
 2008-05-14 20:01:01 +00:00
Dan Gohman
cd29e1fa60 When bit-twiddling CondCode values for integer comparisons produces 
SETOEQ, is it does with (SETEQ & SETULE), map it to SETEQ.

llvm-svn: 51112
 2008-05-14 18:17:09 +00:00
Sanjiv Gupta
7cc26f0421 Detabification. Fixed indentation and spacing. 
Changed cout to DOUT, and TODOs to FIXMEs.
Other changes as per coding conventions.

llvm-svn: 51105
 2008-05-14 11:31:39 +00:00
Nicolas Geoffray
9f633abc38 Fix typo in ParameterAttribute fields usage. Add an include 
to make the Cpp backend output compilable.

llvm-svn: 51095
 2008-05-14 07:52:03 +00:00
Sanjiv Gupta
3563f7bc68 Fixed the file description header at the top to remove the developer name. 
llvm-svn: 51094
 2008-05-14 06:50:01 +00:00
Evan Cheng
95987c2586 Doh. Alignment is in bytes, not in bits. 
llvm-svn: 51092
 2008-05-14 02:49:43 +00:00
Dan Gohman
f9d5689496 Change target-specific classes to use more precise static types. 
This eliminates the need for several awkward casts, including
the last dynamic_cast under lib/Target.

llvm-svn: 51091
 2008-05-14 01:58:56 +00:00
Dan Gohman
ffe0b1f40e Whitespace cleanups. 
llvm-svn: 51089
 2008-05-14 00:43:10 +00:00
Dan Gohman
fe628b229c Make PreVerifyID, IntSigsEnd, and KillSigsEnd const. 
llvm-svn: 51088
 2008-05-14 00:42:30 +00:00
Dan Gohman
4dc39991f8 Split the loop unroll mechanism logic out into a utility function. 
Patch by Matthijs Kooijman!

llvm-svn: 51083
 2008-05-14 00:24:14 +00:00
Owen Anderson
6a2ee9af7a Fix Analysis/BasicAA/pure-const-dce.ll. This turned out to be a correctness 
bug as well as a missed optimization.  We weren't properly checking for local
dependencies before moving on to non-local ones when doing non-local read-only 
call CSE.

llvm-svn: 51082
 2008-05-13 23:18:30 +00:00
Gabor Greif
dd2f5c797d Merge of r51073-51074 from use-diet branch. 
Do not rely on std::swap<Use>, provide a (faster) member function instead.
This change is primarily necessitated by MSVC++'s incompatibility with
declaring std::swap<Use> to be a friend of Use.

Also contains some minor tweaks to Use inline functions,
to undo pointless changes that sneaked in with the last merge.

llvm-svn: 51078
 2008-05-13 22:51:52 +00:00
Devang Patel
bae88af8c1 Dominance Frontier is cfg only pass. 
llvm-svn: 51075
 2008-05-13 22:43:21 +00:00
Owen Anderson
5e6431c140 Fix memdep's handling of invokes when finding the dependency of another call 
instruction.  This fixes some Ada miscompiles reported in PR2324.

llvm-svn: 51069
 2008-05-13 21:25:37 +00:00
Dale Johannesen
676a1d026b Fix for PR 2323, infinite loop in tail dup. 
llvm-svn: 51063
 2008-05-13 20:06:43 +00:00
Chris Lattner
a11adf725d add a note 
llvm-svn: 51062
 2008-05-13 19:56:20 +00:00
Evan Cheng
cb56638548 - Fix the pasto in the fix for a previous pasto. 
- Incorporate Chris' comment suggestion.

llvm-svn: 51061
 2008-05-13 18:59:59 +00:00
Chris Lattner
c9eb6a7d64 add a note 
llvm-svn: 51060
 2008-05-13 18:48:54 +00:00
Nate Begeman
c290daf581 Fix one more encoding bug. 
llvm-svn: 51057
 2008-05-13 17:52:09 +00:00
Evan Cheng
cf6928983b - Don't treat anyext 16-bit load as a 32-bit load if it's volatile. 
- Correct a pasto.

llvm-svn: 51054
 2008-05-13 16:45:56 +00:00
Owen Anderson
7f6db08b5f Make the non-local CSE safety checks slightly more thorough. 
llvm-svn: 51035
 2008-05-13 13:41:23 +00:00