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Author SHA1 Message Date
Dan Gohman
178e26adbf Delete an unused variable. 
llvm-svn: 91287
 2009-12-14 17:08:09 +00:00
Dan Gohman
c6a7652b5e Drop Loop::isNotAlreadyContainedIn in favor of Loop::contains. The 
former was just exposing a LoopInfoBase implementation detail.

llvm-svn: 91286
 2009-12-14 17:06:50 +00:00
Jim Grosbach
5741d33c74 add ldrexd/strexd instructions 
llvm-svn: 91284
 2009-12-14 17:02:55 +00:00
Dan Gohman
44a2a502f2 LSR itself doesn't need LoopInfo. 
llvm-svn: 91283
 2009-12-14 17:02:34 +00:00
Dan Gohman
449298eb08 LSR itself doesn't need DominatorTree. 
llvm-svn: 91282
 2009-12-14 16:57:08 +00:00
Dan Gohman
bf3406f85f Remove the code in LSR that manually hoists expansions out of loops; 
SCEVExpander does this automatically.

llvm-svn: 91281
 2009-12-14 16:52:55 +00:00
Dan Gohman
0a0423c492 Minor code cleanups. 
llvm-svn: 91280
 2009-12-14 16:37:29 +00:00
Devang Patel
101a4bdd4a Use DW_AT_specification to point to DIE describing function declaration. 
llvm-svn: 91278
 2009-12-14 16:18:45 +00:00
Shantonu Sen
9782dd21e0 Remove empty file completely 
llvm-svn: 91277
 2009-12-14 14:15:15 +00:00
Torok Edwin
388463f7c4 Add "generic" fallback. 
gcc warned that the function may not have a return value, indeed
for non-intel and non-amd X86 CPUs it is right (VIA, etc.).

llvm-svn: 91276
 2009-12-14 12:38:18 +00:00
Lang Hames
1266cbda54 Added CalcSpillWeights to CMakeLists. 
llvm-svn: 91275
 2009-12-14 07:43:25 +00:00
Bill Wendling
e4328758f9 Whitespace changes, comment clarification. No functional changes. 
llvm-svn: 91274
 2009-12-14 06:51:19 +00:00
Lang Hames
9b6e6492ad Moved spill weight calculation out of SimpleRegisterCoalescing and into its own pass: CalculateSpillWeights. 
llvm-svn: 91273
 2009-12-14 06:49:42 +00:00
Chris Lattner
6603d21f13 revert r91184, because it causes a crash on a .bc file I just 
sent to Bob.

llvm-svn: 91268
 2009-12-14 05:11:02 +00:00
Jim Grosbach
87975f6229 atomic binary operations up to 32-bits wide. 
llvm-svn: 91260
 2009-12-14 04:22:04 +00:00
Mikhail Glushenkov
9bad5b8fe4 Add a test for the 'init' option property. 
llvm-svn: 91259
 2009-12-14 04:06:38 +00:00
Jeffrey Yasskin
d06c7e46a2 Reinstate r91208 to fix available_externally linkage for globals, with 
nlewycky's fix to add -rdynamic so the JIT can look symbols up in Linux builds
of the JITTests binary.

llvm-svn: 91250
 2009-12-13 20:30:32 +00:00
Torok Edwin
57fe66cf5b Using _MSC_VER there was wrong, better just use the already existing ifdefs for 
x86 CPU detection for the X86 getHostCPUName too, and create a simple
getHostCPUName that returns "generic" for all else.

llvm-svn: 91240
 2009-12-13 08:59:40 +00:00
Chandler Carruth
f5a2d328af Don't leave pointers uninitialized in the default constructor. GCC complains 
about the potential use of these uninitialized members under certain conditions.

llvm-svn: 91239
 2009-12-13 07:04:45 +00:00
Anton Korobeynikov
5236d41ee7 Fix weird typo which leads to unallocated memory access for nodes with 4 results. 
llvm-svn: 91233
 2009-12-13 01:00:59 +00:00
Anton Korobeynikov
fddfe4d096 Do not allow uninitialize access during debug printing 
llvm-svn: 91232
 2009-12-13 01:00:32 +00:00
Eli Friedman
392adbdd7d More info on this transformation. 
llvm-svn: 91230
 2009-12-12 23:23:43 +00:00
Eli Friedman
38a7d3b32e Remove some stuff that's already implemented. Also, remove the note about 
merging x >u 5 and x <s 20 because it's impossible to implement.

llvm-svn: 91228
 2009-12-12 21:41:48 +00:00
Daniel Dunbar
ed743f6524 Update install-clang target for clang-cc removal. 
llvm-svn: 91226
 2009-12-12 21:17:54 +00:00
Evan Cheng
ee5b5917fd Disable r91104 for x86. It causes partial register stall which pessimize code in 32-bit. 
llvm-svn: 91223
 2009-12-12 20:03:14 +00:00
Anton Korobeynikov
5cd169e17e Implement variable-width shifts. 
No testcase yet - it seems we're exposing generic codegen bugs.

llvm-svn: 91221
 2009-12-12 18:55:37 +00:00
Evan Cheng
5cd8cd2a5c Add comment about potential partial register stall. 
llvm-svn: 91220
 2009-12-12 18:55:26 +00:00
Evan Cheng
53e863f152 Fix an obvious bug. No test case since LEA16r is not being used. 
llvm-svn: 91219
 2009-12-12 18:51:56 +00:00
Torok Edwin
6c46ee4a5b Enable CPU detection when using MS VS 2k8 too. 
MSVS2k8 doesn't define __i386__, hence all the CPU detection code was disabled.
Enable it by looking for _MSC_VER.

llvm-svn: 91217
 2009-12-12 12:42:31 +00:00
Benjamin Kramer
6cd9b2ba74 Fix some CHECK lines which were ignored by accident. 
llvm-svn: 91214
 2009-12-12 09:25:50 +00:00
Jeffrey Yasskin
f79c7c85f7 Revert r91208. Something on Linux prevents the JIT from looking up a symbol 
defined in the test, and I don't have time tonight to figure it out.

llvm-svn: 91209
 2009-12-12 06:18:46 +00:00
Jeffrey Yasskin
b34198b7ff Fix available_externally linkage for globals. It's probably still not 
supported by emitGlobals, but I don't have a test case for that.

llvm-svn: 91208
 2009-12-12 05:58:14 +00:00
Jeffrey Yasskin
9cba192e78 Make it easier to use the llvm_unreachable and DEBUG macros without "using 
namespace llvm" by qualifying their implementations with ::llvm::.

llvm-svn: 91206
 2009-12-12 04:08:32 +00:00
Jim Grosbach
187ad02a4f Framework for atomic binary operations. The emitter for the pseudo instructions 
just issues an error for the moment. The front end won't yet generate these
intrinsics for ARM, so this is behind the scenes until complete.

llvm-svn: 91200
 2009-12-12 01:40:06 +00:00
Bob Wilson
8486cae4ce Revise scalar replacement to be more flexible about handle bitcasts and GEPs. 
While scanning through the uses of an alloca, keep track of the current offset
relative to the start of the alloca, and check memory references to see if
the offset & size correspond to a component within the alloca.  This has the
nice benefit of unifying much of the code from isSafeUseOfAllocation,
isSafeElementUse, and isSafeUseOfBitCastedAllocation.  The code to rewrite
the uses of a promoted alloca, after it is determined to be safe, is
reorganized in the same way.

Also, when rewriting GEP instructions, mark them as "in-bounds" since all the
indices are known to be safe.

llvm-svn: 91184
 2009-12-11 23:47:40 +00:00
Dan Gohman
512052fbf2 Delete an unnecessary line. The VTSDNode on a SIGN_EXTEND_REG is never 
a vector type.

llvm-svn: 91181
 2009-12-11 23:26:08 +00:00
Anton Korobeynikov
724c82337f Lower setcc branchless, if this is profitable. 
Based on the patch by Brian Lucas!

llvm-svn: 91175
 2009-12-11 23:01:29 +00:00
Bill Wendling
10e315eae4 Don't try to move a MBB into the fall-through position if it's a landing pad or 
branches only to a landing pad. Without this check, the compiler would go into
an infinite loop because the branch to a landing pad is an "abnormal" edge which
wasn't being taken into account.

This is the meat of that fix:

  if (!PrevBB.canFallThrough() && !MBB->BranchesToLandingPad(MBB)) {

The other stuff is simplification of the "branches to a landing pad" code.

llvm-svn: 91161
 2009-12-11 21:47:36 +00:00
Devang Patel
888cd4aa89 Construct CompileUnits lazily. 
llvm-svn: 91159
 2009-12-11 21:37:07 +00:00
Dan Gohman
2e616e859b Implement vector widening, splitting, and scalarizing for SIGN_EXTEND_INREG. 
llvm-svn: 91158
 2009-12-11 21:31:27 +00:00
Jim Grosbach
0cfc544e97 memory barrier instructions by definition have side effects. This prevents the post-RA scheduler from moving them around. 
llvm-svn: 91150
 2009-12-11 20:29:53 +00:00
Dan Gohman
0a78e32f6b Change this to the correct PR number. 
llvm-svn: 91148
 2009-12-11 20:09:21 +00:00
Dan Gohman
c22d542754 Make getUniqueExitBlocks's precondition assert more precise, to 
avoid spurious failures. This fixes PR5758.

llvm-svn: 91147
 2009-12-11 20:05:23 +00:00
Dan Gohman
b2cbb1e37e Fix the result type of SELECT nodes lowered from Select instructions with 
aggregate return values. This fixes PR5754.

llvm-svn: 91145
 2009-12-11 19:50:50 +00:00
Anton Korobeynikov
f8b2e2868e Honour setHasCalls() set from isel. 
This is used in some weird cases like general dynamic TLS model.
This fixes PR5723

llvm-svn: 91144
 2009-12-11 19:39:55 +00:00
Johnny Chen
5d6f117ed5 Store Register Exclusive should leave the source register Inst{3-0} unspecified. 
llvm-svn: 91143
 2009-12-11 19:37:26 +00:00
Jim Grosbach
89e51fb5ff Update properties. 
llvm-svn: 91140
 2009-12-11 18:52:41 +00:00
Gabor Greif
8508c1f18e Simplify this class by removing the result cache. 
This change removes the DefaultConstructible
and CopyAssignable constraints on the template
parameter T (the first one).

The second template parameter (R) is defaulted to be
identical to the first and controls the result type.
By specifying it to be (const T&) additionally the
CopyConstructible constraint on T can be removed.

This allows to use StringSwitch e.g. for llvm::Constant
instances.

Regarding the other review feedback regarding performance
because of taking pointers, this class should be completely
optimizable like before, since all methods are inline and
the pointer dereferencing and result value caching should be
possible behind the scenes by the "as-if" rule.

llvm-svn: 91123
 2009-12-11 15:30:07 +00:00
Bill Wendling
895f84dd62 Revert part of r91101 which was causing an infinite loop in the self-hosting 
build bots.

llvm-svn: 91113
 2009-12-11 10:43:41 +00:00
Duncan Sands
d73da0fbb9 Add utility method for determining whether a function argument 
has the 'nest' attribute.

llvm-svn: 91109
 2009-12-11 08:36:17 +00:00