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34614 Commits

Author SHA1 Message Date
Jim Grosbach
f6b2862e81 ARM memory barrier instructions are not predicable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91305 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 18:31:20 +00:00
Dan Gohman
e2f65ee4b1 Clear the Processed set when it is no longer used, and clear the 
IVUses list in releaseMemory().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91296 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:35:17 +00:00
Dan Gohman
30844c3950 Fix a thinko; isNotAlreadyContainedIn had a built-in negative, so the 
condition was inverted when the code was converted to contains().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91295 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:31:01 +00:00
Dan Gohman
c71c0e958c Remove unnecessary #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91293 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:19:06 +00:00
Dan Gohman
d3222b4224 Instead of having a ScalarEvolution pointer member in BasedUser, just pass 
the ScalarEvolution pointer into the functions which need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91289 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:12:51 +00:00
Dan Gohman
a77d588c75 Don't bother cleaning up if there's nothing to clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91288 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:10:44 +00:00
Dan Gohman
6dc1ef3923 Delete an unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91287 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:08:09 +00:00
Dan Gohman
440b40d865 Drop Loop::isNotAlreadyContainedIn in favor of Loop::contains. The 
former was just exposing a LoopInfoBase implementation detail.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91286 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:06:50 +00:00
Jim Grosbach
d7d72d66b7 add ldrexd/strexd instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91284 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:02:55 +00:00
Dan Gohman
1ed8bb3556 LSR itself doesn't need LoopInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91283 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:02:34 +00:00
Dan Gohman
c398365349 LSR itself doesn't need DominatorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91282 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 16:57:08 +00:00
Dan Gohman
67b94fb73d Remove the code in LSR that manually hoists expansions out of loops; 
SCEVExpander does this automatically.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91281 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 16:52:55 +00:00
Dan Gohman
b058ceda56 Minor code cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91280 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 16:37:29 +00:00
Devang Patel
ffe966c15b Use DW_AT_specification to point to DIE describing function declaration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91278 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 16:18:45 +00:00
Torok Edwin
546d8d0e3e 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.).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91276 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 12:38:18 +00:00
Lang Hames
94a4a5eec6 Added CalcSpillWeights to CMakeLists. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91275 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 07:43:25 +00:00
Bill Wendling
85de1e5bad Whitespace changes, comment clarification. No functional changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91274 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 06:51:19 +00:00
Lang Hames
a937f220e1 Moved spill weight calculation out of SimpleRegisterCoalescing and into its own pass: CalculateSpillWeights. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91273 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 06:49:42 +00:00
Chris Lattner
a59adc4015 revert r91184, because it causes a crash on a .bc file I just 
sent to Bob.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91268 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 05:11:02 +00:00
Jim Grosbach
c3c2354ec9 atomic binary operations up to 32-bits wide. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91260 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 04:22:04 +00:00
Jeffrey Yasskin
898e9df8db 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91250 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-13 20:30:32 +00:00
Torok Edwin
c4174d675b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91240 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-13 08:59:40 +00:00
Chandler Carruth
0daf77e803 Don't leave pointers uninitialized in the default constructor. GCC complains 
about the potential use of these uninitialized members under certain conditions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91239 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-13 07:04:45 +00:00
Anton Korobeynikov
60283f9bc9 Fix weird typo which leads to unallocated memory access for nodes with 4 results. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91233 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-13 01:00:59 +00:00
Anton Korobeynikov
cdcad11c94 Do not allow uninitialize access during debug printing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91232 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-13 01:00:32 +00:00
Eli Friedman
bcae205a4b More info on this transformation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91230 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 23:23:43 +00:00
Eli Friedman
1555473387 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91228 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 21:41:48 +00:00
Evan Cheng
dd99f3a7dc Disable r91104 for x86. It causes partial register stall which pessimize code in 32-bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91223 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 20:03:14 +00:00
Anton Korobeynikov
2625de35ed Implement variable-width shifts. 
No testcase yet - it seems we're exposing generic codegen bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91221 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 18:55:37 +00:00
Evan Cheng
04ab19cb14 Add comment about potential partial register stall. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91220 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 18:55:26 +00:00
Evan Cheng
15b0d97068 Fix an obvious bug. No test case since LEA16r is not being used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91219 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 18:51:56 +00:00
Torok Edwin
da8bafbf83 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91217 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 12:42:31 +00:00
Jeffrey Yasskin
9b8ff28870 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91209 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 06:18:46 +00:00
Jeffrey Yasskin
5cc966a6c1 Fix available_externally linkage for globals. It's probably still not 
supported by emitGlobals, but I don't have a test case for that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91208 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 05:58:14 +00:00
Jim Grosbach
e801dc4a7b 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91200 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 01:40:06 +00:00
Bob Wilson
73a1b67cb9 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91184 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 23:47:40 +00:00
Dan Gohman
a0474a83bf Delete an unnecessary line. The VTSDNode on a SIGN_EXTEND_REG is never 
a vector type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91181 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 23:26:08 +00:00
Anton Korobeynikov
8d1ffbd1ad Lower setcc branchless, if this is profitable. 
Based on the patch by Brian Lucas!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91175 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 23:01:29 +00:00
Bill Wendling
c42a0b75a4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91161 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 21:47:36 +00:00
Devang Patel
d037d7a497 Construct CompileUnits lazily. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91159 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 21:37:07 +00:00
Dan Gohman
87862e77bb Implement vector widening, splitting, and scalarizing for SIGN_EXTEND_INREG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91158 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 21:31:27 +00:00
Jim Grosbach
c8f9e4fdc5 memory barrier instructions by definition have side effects. This prevents the post-RA scheduler from moving them around. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91150 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 20:29:53 +00:00
Dan Gohman
050959cd08 Make getUniqueExitBlocks's precondition assert more precise, to 
avoid spurious failures. This fixes PR5758.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91147 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 20:05:23 +00:00
Dan Gohman
a4f9cc4e55 Fix the result type of SELECT nodes lowered from Select instructions with 
aggregate return values. This fixes PR5754.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91145 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 19:50:50 +00:00
Anton Korobeynikov
817a46454a Honour setHasCalls() set from isel. 
This is used in some weird cases like general dynamic TLS model.
This fixes PR5723

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91144 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 19:39:55 +00:00
Johnny Chen
0291d7ed09 Store Register Exclusive should leave the source register Inst{3-0} unspecified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91143 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 19:37:26 +00:00
Jim Grosbach
66869104dd Update properties. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91140 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 18:52:41 +00:00
Bill Wendling
a288b2f43a Revert part of r91101 which was causing an infinite loop in the self-hosting 
build bots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91113 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 10:43:41 +00:00
Duncan Sands
be1ce0a867 Add utility method for determining whether a function argument 
has the 'nest' attribute.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91109 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 08:36:17 +00:00
Evan Cheng
656e51454a Add support to 3-addressify 16-bit instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91104 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 06:01:48 +00:00
Evan Cheng
ac94863a1c Coalesce insert_subreg undef, x first to avoid phase ordering issue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91103 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 06:01:00 +00:00
Bill Wendling
64bdde2093 Address comments on last patch: 
- Loosen the restrictions when checking of it branches to a landing pad.
- Make the loop more efficient by checking the '.insert' return value.
- Do cheaper checks first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91101 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 03:14:18 +00:00
Bill Wendling
4bde1ab82d A machine basic block may end in an unconditional branch, however it may have 
more than one successor. Normally, these extra successors are dead. However,
some of them may branch to exception handling landing pads. If we remove those
successors, then the landing pads could go away if all predecessors to it are
removed. Before, it was checking if the direct successor was the landing
pad. But it could be the result of jumping through multiple basic blocks to get
to it. If we were to only check for the existence of an EH_LABEL in the basic
block and not remove successors if it's in there, then it could stop actually
dead basic blocks from being removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91092 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 01:49:14 +00:00
Jim Grosbach
5278eb802f Rough first pass at compare_and_swap atomic builtins for ARM mode. Work in progress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91090 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 01:42:04 +00:00
Devang Patel
edb4563cea If VariableDIe is not created (may be because global was optimzed away) then do not try to use the variable die. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91077 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 23:25:41 +00:00
Evan Cheng
6fd78ec8a2 It's not safe to coalesce a move where src and dst registers have different subregister indices. e.g.: 
%reg16404:1<def> = MOV8rr %reg16412:2<kill>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91061 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 20:59:45 +00:00
Devang Patel
c366f83d89 Refactor code that finds context for a given die. 
Create global variable DIEs after creating subprogram DIEs. This allows function level static variable's to find their context at the time of DIE creation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91055 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 19:14:49 +00:00
Jim Grosbach
cbd77d2cb1 Add instruction encoding for DMB/DSB 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91053 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 18:35:32 +00:00
Devang Patel
16ced733f3 Refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91051 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 18:05:33 +00:00
Jakob Stoklund Olesen
cf97036675 Also attempt trivial coalescing for live intervals that end in a copy. 
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.

The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.

This patch is more conservative than r90502, and does not break
483.xalancbmk/i686. It still breaks the PowerPC bootstrap, so it is disabled
by default, and can be enabled with the -trivial-coalesce-ends option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91049 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 17:48:32 +00:00
Torok Edwin
f05e45eb37 Comparing std::string with NULL is a bad idea, so just check whether its empty. 
This code was crashing always with oprofile enabled, since it tried to create a StringRef
out of NULL, which run strlen on NULL.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91046 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 10:01:47 +00:00
Eric Christopher
3472ae1e7b Make sure the immediate dominator isn't NULL through iterations 
of the loop. We could get to this condition via indirect
branches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91009 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 00:25:41 +00:00
Chris Lattner
16f244e982 Fix PR5744, a case where we were getting the pointer size instead of the 
value size.  This only manifested when memdep inprecisely returns clobber,
which is do to a caching issue in the PR5744 testcase.  We can 'efficiently
emulate' this by using '-no-aa'


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91004 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 00:11:45 +00:00
Jim Grosbach
3728e96a6c Add memory barrier intrinsic support for ARM. Moving towards adding the atomic operations intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91003 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 00:11:09 +00:00
Chris Lattner
b6760b4a1e allow this to build when the #if 0's are enabled. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90999 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 00:04:46 +00:00
Dan Gohman
f68d0c1bbe Dereference loopHeader after checking for null rather than before. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90990 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 22:55:01 +00:00
Evan Cheng
c363094e04 Optimize splat of a scalar load into a shuffle of a vector load when it's legal. e.g. 
vector_shuffle (scalar_to_vector (i32 load (ptr + 4))), undef, <0, 0, 0, 0>
=>
vector_shuffle (v4i32 load ptr), undef, <1, 1, 1, 1>

iff ptr is 16-byte aligned (or can be made into 16-byte aligned).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90984 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 21:00:30 +00:00
Dan Gohman
89452f7386 Reuse the Threshold value to size these containers because it's 
currently somewhat convenient for them to have the same value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90980 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 18:48:53 +00:00
Devang Patel
8a24114b16 Reapply r90858, a cleanup patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90979 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 18:24:21 +00:00
Chris Lattner
af064aeee6 fix hte last remaining known (by me) phi translation bug. When we reanalyze 
clobbers to forward pieces of large stores to small loads, we need to consider
the properly phi translated pointer in the store block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90978 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 18:21:46 +00:00
Chris Lattner
b2c6ae8c0b change GetStoreValueForLoad to use IRBuilder, which is cleaner and 
implicitly constant folds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90977 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 18:13:28 +00:00
Bob Wilson
efc58e7933 Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90975 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 18:05:27 +00:00
Chris Lattner
4d3a16f81b Add a minor optimization: if we haven't changed the operands of an 
add, there is no need to scan the world to find the same add again.
This invalidates the previous testcase, which wasn't wonderful anyway,
because it needed a run of instcombine to permute the use-lists in 
just the right way to before GVN was run (so it was really fragile).
Not a big loss.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 17:27:45 +00:00
Chris Lattner
eddc65aa0d fix PR5733, a case where we'd replace an add with a lexically identical 
binary operator that wasn't an add.  In this case, a xor.  Whoops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90971 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 17:18:49 +00:00
David Goodwin
990d285765 <rdar://problem/7453528>. Track only physical registers that are valid for the target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 17:18:22 +00:00
Chris Lattner
4ca70fe15f change AnalyzeLoadFromClobberingMemInst/AnalyzeLoadFromClobberingStore 
to require the load ty/ptr to be passed in, no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90960 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 07:37:07 +00:00
Chris Lattner
03f17da4da change AnalyzeLoadFromClobberingWrite and clients to pass in type 
and pointer instead of the load.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90959 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 07:34:10 +00:00
Chris Lattner
dad451cb7c enhance NonLocalDepEntry to keep the per-block phi translated address 
of the query.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90958 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 07:31:04 +00:00
Daniel Dunbar
022840e960 DeltaAlgorithm: Add a virtual destructor and home. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90957 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 07:19:48 +00:00
Chris Lattner
e18b97121c change NonLocalDepEntry from being a typedef for an std::pair to be its 
own small class.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90956 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 07:08:01 +00:00
Lang Hames
6194569d22 Added a new "splitting" spiller. 
When a call is placed to spill an interval this spiller will first try to
break the interval up into its component values. Single value intervals and
intervals which have already been split (or are the result of previous splits)
are spilled by the default spiller.

Splitting intervals as described above may improve the performance of generated
code in some circumstances. This work is experimental however, and it still
miscompiles many benchmarks. It's not recommended for general use yet.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90951 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 05:39:12 +00:00
Daniel Dunbar
164c7ba0ef Remove spurious extern. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90937 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 03:26:33 +00:00
Chris Lattner
b3f927f6dd add some aborts to #if 0's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90929 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 02:41:54 +00:00
Chris Lattner
05e15f8897 Switch GVN and memdep to use PHITransAddr, which correctly handles 
phi translation of complex expressions like &A[i+1].  This has the
following benefits:

1. The phi translation logic is all contained in its own class with
   a strong interface and verification that it is self consistent.

2. The logic is more correct than before.  Previously, if intermediate
   expressions got PHI translated, we'd miss the update and scan for
   the wrong pointers in predecessor blocks.  @phi_trans2 is a testcase
   for this.

3. We have a lot less code in memdep.

We can handle phi translation across blocks of things like @phi_trans3,
which is pretty insane :).

This patch should fix the miscompiles of 255.vortex, and I tested it 
with a bootstrap of llvm-gcc, llvm-test and dejagnu of course.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90926 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:59:31 +00:00
Evan Cheng
7bd6478cd6 Teach InferPtrAlignment to infer GV+cst alignment and use it to simplify x86 isl lowering code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90925 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:53:58 +00:00
Evan Cheng
64fa4a9584 Move isConsecutiveLoad to SelectionDAG. It's not target dependent and it's primary used by selectdag passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90922 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:36:00 +00:00
Chris Lattner
d632988eea fix a nasty variable that was shadowing the real CurBB but with the wrong value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90920 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:19:16 +00:00
Evan Cheng
de2ace1758 Infer alignment for non-fixed stack object. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90919 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:17:24 +00:00
Evan Cheng
7ced2e0b30 Add const qualifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90918 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:10:37 +00:00
Evan Cheng
f2dc5c785d Refactor InferAlignment out of DAGCombine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90917 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:04:59 +00:00
Chris Lattner
6200e53f55 fix many input tracking bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90915 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 00:56:14 +00:00
Dan Gohman
686abbb1eb Fix a typo in a comment, and adjust SmallSet and SmallVector sizes, 
that Chris noticed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90910 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 00:28:42 +00:00
Chris Lattner
e09e98c2de fix PHI translation to take the PHI out of the instinputs set and add 
the translated value back to it if an instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90909 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 00:18:13 +00:00
Chris Lattner
af50315a29 instructions defined in CurBB may be intermediate nodes of the computation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90908 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 00:10:55 +00:00
Chris Lattner
7dedbf4ce3 add dumping and sanity checking support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90906 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 00:01:00 +00:00
Dan Gohman
8456d60bec Put a threshold on the number of users PointerMayBeCaptured 
examines; fall back to a conservative answer if there are
more. This works around some several compile time problems
resulting from BasicAliasAnalysis calling PointerMayBeCaptured.

The value has been chosen arbitrarily.

This fixes rdar://7438917 and may partially address PR5708.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90905 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 23:59:12 +00:00
Chris Lattner
43678f41a3 make sure that PHITransAddr keeps its 'InstInputs' list up to 
date when instsimplify kicks in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90901 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 23:42:51 +00:00
Devang Patel
0000fadb00 Revert 90858 90875 and 90805 for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90898 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 23:21:45 +00:00
Evan Cheng
d831cda3e7 - Support inline asm 'w' constraint for 128-bit vector types. 
- Also support the 'q' NEON registers asm code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90894 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 23:06:22 +00:00
Bob Wilson
65ab34f3f2 Some superficial cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90866 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 18:27:03 +00:00
Bob Wilson
78c50b8cd6 Clean up dead operands left around after SROA replaces a mem intrinsic. 
I'm not aware that this does anything significant on its own, but it's
needed for another patch that I'm working on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90864 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 18:22:03 +00:00
Devang Patel
a3a60c6c49 Cleanup. 
There is no need to supply ModuleCU to addType() as a parameter.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90858 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 15:31:31 +00:00
Devang Patel
018b66038c Do not try to push dead variable's debug info into namespace info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90857 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 15:01:35 +00:00
Benjamin Kramer
69cee6151d Remove useless calls to c_str(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90855 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 13:07:38 +00:00
Duncan Sands
7a154cf228 Teach GlobalOpt to delete aliases with internal linkage (after 
forwarding any uses).  GlobalDCE can also do this, but is only
run at -O3.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90850 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 10:10:20 +00:00
Chris Lattner
34f849098b fix a typo (and -> add) and fix GetAvailablePHITranslatedSubExpr to not 
side-effect the current object.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90837 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 06:06:26 +00:00
Nick Lewycky
87f8e49027 Remove unnecessary #include "llvm/LLVMContext.h". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90836 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 05:45:41 +00:00
Chris Lattner
399ac530d6 whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90834 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 05:31:46 +00:00
Anton Korobeynikov
9aa1ec87b0 Reduce (cmp 0, and_su (foo, bar)) into (bit foo, bar). This saves extra instruction. Patch inspired by Brian Lucas! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90819 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 01:03:04 +00:00
Evan Cheng
3a41ddb1b9 Watch out for duplicated PHI instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90816 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 23:11:03 +00:00
Evan Cheng
d8f079c25e Follow up to 90488. Turn a check into an assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90815 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 23:10:34 +00:00
Jeffrey Yasskin
13027640e8 Fix the OProfileJITEventListener for StringRef being returned from debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90813 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 22:32:38 +00:00
Victor Hernandez
c59b33562c Rename DIFactory::InsertValue() as DIFactory::InsertDbgValueIntrinsic() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90807 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 21:54:43 +00:00
Devang Patel
4063f6bcc7 Add support to emit debug info for c++ style namespaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90805 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 21:41:32 +00:00
Evan Cheng
80564f761a Delete code accidentally left behind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90804 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 21:19:33 +00:00
Chris Lattner
6045417fcc fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90793 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 19:52:57 +00:00
Chris Lattner
e05a188cd6 add accessor, improve comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90792 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 19:45:30 +00:00
Victor Hernandez
2f9dac721d Introduce the "@llvm.dbg.value" debug intrinsic. 
The semantics of llvm.dbg.value are that starting from where it is executed, an offset into the specified user source variable is specified to get a new value.

An example:
  call void @llvm.dbg.value(metadata !{ i32 7 }, i64 0, metadata !2)
Here the user source variable associated with metadata #2 gets the value "i32 7" at offset 0.
 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90788 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 19:36:34 +00:00
Chris Lattner
6fcca1cc87 add support for phi translation and incorpation of new expression. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90782 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 19:04:49 +00:00
Dan Gohman
d84ea47b89 Don't enable the post-RA scheduler on x86 except at -O3. In its 
current form, it is too expensive in compile time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90781 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 19:04:31 +00:00
Chris Lattner
9a8641201b checkpoint of the new PHITransAddr code, still not done and not used by 
anything.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90779 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 18:36:53 +00:00
Evan Cheng
75eb535843 Pre-regalloc tale duplication. Work in progress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90759 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 10:15:19 +00:00
Oscar Fuentes
bcc2e45840 Fixes the Atomic implementation if compiled by MSVC compiler. 
sys::cas_flag should be long on this platform, InterlockedAdd() is
defined only for the Itanium architecture (according to MSDN).

Patch by Michael Beck!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90748 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 05:29:59 +00:00
Evan Cheng
7e572eb37f If BB is empty, insert PHI before end() instead of front(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90744 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 03:07:01 +00:00
Anton Korobeynikov
6bfcba7e13 Some pretty-printing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90742 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 02:28:41 +00:00
Anton Korobeynikov
1c3436a67a Truncate the arguments of llvm.frameaddress / llvm.returnaddress intrinsics from i32 to platform's largest native type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90741 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 02:28:26 +00:00
Anton Korobeynikov
06ccca5f70 Add lowering of returnaddr and frameaddr intrinsics. Shamelessly stolen from x86 :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90740 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 02:28:10 +00:00
Anton Korobeynikov
e662f7a8b2 Initial codegen support for MSP430 ISRs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90739 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 02:27:53 +00:00
Anton Korobeynikov
211a14e476 Add MSP430 interrupt calling conv. No functionality change yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90738 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 02:27:35 +00:00
Anton Korobeynikov
b2de1ea29b Add ability to select hw multiplier mode and select appropriate libcalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90737 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 02:27:08 +00:00
Anton Korobeynikov
7cca606aaa Dynamic stack realignment use of sp register as source/dest register 
in "bic sp, sp, #15" leads to unpredicatble behaviour in Thumb2 mode.
Emit the following code instead:
mov r4, sp
bic r4, r4, #15
mov sp, r4

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90724 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 22:39:50 +00:00
Chris Lattner
08bc2701a2 fix PR5698 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90708 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 17:17:23 +00:00
Chris Lattner
bc9a28dd54 constant fold loads from memcpy's from global constants. This is important 
because clang lowers nontrivial automatic struct/array inits to memcpy from
a global array.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90698 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 05:29:56 +00:00
Chris Lattner
cb9cbc4949 add support for forwarding mem intrinsic values to non-local loads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90697 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 04:54:31 +00:00
Chris Lattner
faf815b938 Handle forwarding local memsets to loads. For example, we optimize this: 
short x(short *A) {
  memset(A, 1, sizeof(*A)*100);
  return A[42];
}

to 'return 257' instead of doing the load.  



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90695 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 01:57:02 +00:00
Dan Gohman
87bad707ed Remove old DBG_LABEL code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90669 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 17:56:26 +00:00
Dan Gohman
714efc63d4 Remove the unused DisableLegalizeTypes option and related code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90668 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 17:51:33 +00:00
Bill Wendling
740266269b Calling InvalidateEntry during the refinement was breaking the bootstrap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90656 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 07:59:04 +00:00
Bill Wendling
32bc2362a1 Final cleanups: 
- Privatize a typedef.
- Call the InvalidateEntry when refining a type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90655 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 07:46:49 +00:00
Bill Wendling
dc492e0370 Temporarily revert r90502. It was causing the llvm-gcc bootstrap on PPC to fail. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90653 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 07:30:23 +00:00
Nick Lewycky
93d3311d1f Fix indentation in switch statement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90650 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 06:37:24 +00:00
Nick Lewycky
83e8ec73e1 Generalize this optimization to work on equality comparisons between any two 
integers that are constant except for a single bit (the same n-th bit in each).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90646 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 05:00:00 +00:00
Dan Gohman
b3b9821cde Don't print a space before the : between the file name and line number. 
And separate the directory and file name with a '/'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90641 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 02:00:34 +00:00
Bill Wendling
688da28687 Inline methods which are called only once. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90640 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:46:01 +00:00
Bill Wendling
5681689795 Refactor some code. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90639 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:43:33 +00:00
Dan Gohman
eecb9919a4 Print newlines after printing labels for debug info, so that the output 
isn't cluttered with things like "Llabel47:Llabel48:  movq  (%rsi), %xmm3"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90638 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:42:34 +00:00
Dan Gohman
381ca5572e Don't blindly set the debug location for PHI node copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90637 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:29:04 +00:00
Dan Gohman
6e3ff37547 Make TargetSelectInstruction protected and called from FastISel.cpp 
instead of SelectionDAGISel.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90636 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:27:58 +00:00
Dan Gohman
864e2efce2 Remove the target hook TargetInstrInfo::BlockHasNoFallThrough in favor of 
MachineBasicBlock::canFallThrough(), which is target-independent and more
thorough.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90634 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:44:40 +00:00
Dan Gohman
735985fbbe Simplify this code: don't call AnalyzeBranch before doing simpler checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90633 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:32:59 +00:00
Dan Gohman
07f111e7b7 The debug information for an LLVM Instruction applies to that Instruction 
and that Instruction only. Implement this by setting the "current debug position"
back to Unknown after processing each instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90632 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:27:08 +00:00
Dan Gohman
3b9bc04eda Fix this code to use DIScope instead of DICompileUnit, as in r90181. 
Don't print "SrcLine"; just print the filename and line number, which
is obvious enough and more informative.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90631 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:23:29 +00:00
Dan Gohman
4b808b014b Don't print the debug directory; it's often long and uninteresting. Omit 
the column number if it is not known. Handle the case of a missing filename
better.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90630 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:20:51 +00:00
David Greene
adbc23cae1 Remove an unneeded include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90625 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:55:07 +00:00
Dan Gohman
fcafe44f56 Print a space between the comment character and the text. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90621 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:19:55 +00:00
Devang Patel
d55224c25e In TAG_subrange_type, uppder bound is zero indexed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90617 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:10:24 +00:00
David Greene
f7ea2a534b Use new interfaces to print spill size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90611 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 22:46:04 +00:00
David Greene
29dbf50b18 Have hasLoad/StoreFrom/ToStackSlot return the relevant MachineMemOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90608 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 22:38:46 +00:00
Bob Wilson
39fdd6947c Fix up some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90603 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 21:57:37 +00:00
Bob Wilson
d614a1f0a8 Fix 80-column violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90601 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 21:51:35 +00:00
Bill Wendling
1500c4f49a Some code cleanup. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90588 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 21:03:02 +00:00
Victor Hernandez
ff7707e983 Avoid creating a metadata slot for all metadata that contains an instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90581 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 20:07:10 +00:00
Evan Cheng
11572babb1 Handle recursive PHI's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90575 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 19:09:10 +00:00
Victor Hernandez
954c80e99d Fix crasher when N->getElement(n) is NULL 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90572 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 18:29:23 +00:00
Evan Cheng
79fc6f44b6 Add a pre-regalloc tail duplication pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90567 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 09:42:45 +00:00
Evan Cheng
9d0f8bba17 Don't try to be cute with undef optimization here. Let ProcessImplicitDefs handle it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90566 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 09:23:37 +00:00
Duncan Sands
36236b76a4 Add note about a subtle bug in this code. Does not effect the main 
architectures that LLVM targets, because they don't use this code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90564 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 08:42:17 +00:00
Daniel Dunbar
83563b24ce Fix typo and add missing include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90557 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 08:17:07 +00:00
Andreas Neustifter
1f6ae81725 Added debug output for inherited passes that are invalidated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90553 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 06:58:24 +00:00
Chris Lattner
44a7a380aa Fix PR5551 by not ignoring the top level constantexpr when 
folding a load from constant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90545 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 06:29:29 +00:00
Chris Lattner
bbf9a5845a add to cmake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90539 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 04:15:36 +00:00
Chris Lattner
210e45af3a add the start of a class used to handle phi translation in memdep and 
gvn (this is just a skeleton so far).  This will ultimately be used
to fix a nasty miscompilation with GVN.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90518 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 02:10:16 +00:00
Victor Hernandez
97e2450de2 Teach AsmWriter to write inline (not via a global metadata slot) metadata that contains an instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90512 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 01:35:02 +00:00
Bob Wilson
eb35699e64 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90511 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 01:33:04 +00:00
Chris Lattner
45305d4ff6 add an assert to make it really clear what this is doing. Return singularval as 
a compile time perf optimization to avoid a load.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90507 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 01:03:32 +00:00
Jakob Stoklund Olesen
6b74e505be Also attempt trivial coalescing for live intervals that end in a copy. 
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.

The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.

This patch takes care of a few more cases that r90163 missed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90502 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 00:16:04 +00:00
Evan Cheng
2e65c29ac6 - If the reaching definition is an undef and the use is a PHI, add the implicit_def to the end of the source block. 
- When reaching value is replaced with another, update the cache as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90501 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 00:09:05 +00:00
Devang Patel
b3235d22e9 Insert composite type DIE into the map before processing type fields. This allows fields to find their context DIE from the map. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90498 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 23:46:57 +00:00
Victor Hernandez
1971556cc2 Add ParseInlineMetadata() which can parses metadata that refers to an instruction. Extend ParseParameterList() to use this new function so that calls to llvm.dbg.declare can pass inline metadata 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90497 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 23:40:58 +00:00
Jim Grosbach
4dc4a61c0c remove out of date FIXME. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90490 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 21:55:01 +00:00
Evan Cheng
01306cad01 Handle undef values properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90489 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 21:51:55 +00:00
Evan Cheng
9aed9396a6 Watch out for PHI instruction with no source operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90488 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 21:50:58 +00:00
Bob Wilson
4a8ee23a81 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90487 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 21:47:07 +00:00
Duncan Sands
9993b88f06 Fix ExpandShiftWithUnknownAmountBit, which was completely bogus. 
Pointed out by Javier Martinez (who also provided a patch).  Since
this logic is not used on (for example) x86, I guess nobody noticed.
Tested by generating SHL, SRL, SRA on various choices of i64 for all
possible shift amounts, and comparing with gcc.  Since I did this on
x86-32, I had to force the use of ExpandShiftWithUnknownAmountBit.
What I'm saying here is that I don't have a testcase I can add to the
repository.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90482 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 21:37:32 +00:00
Jakob Stoklund Olesen
f4811a9694 Clean up some loop logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90481 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 20:49:10 +00:00
Devang Patel
5d11eb0ed5 Add support to emit debug info for virtual functions and virtual base classes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90474 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 19:11:07 +00:00
Dan Gohman
018402d30c Print a newline after the Args: line so that unrelated errs() output doesn't 
end up on the same line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90473 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 19:03:18 +00:00
Benjamin Kramer
88a91b579b Fix MSVC build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90454 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 13:23:03 +00:00
Andreas Neustifter
8c30abec6d Convert ProfileVerifier to template so it can be used for different types of ProfileInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90451 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 12:55:57 +00:00
Andreas Neustifter
1640f7e033 Do not create negative edge weights in ProfileEstimator. 
Use integer values for weights to prevent rounding errors.
Make ProfileEstimator more robust in general CFGs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90449 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 12:41:14 +00:00
Daniel Dunbar
a6d5e40e25 Add an implementation of the delta debugging algorithm. 
- This is a pretty slow / memory intensive implementation, and I will likely
   change it to an iterative model, but it works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90447 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 11:12:42 +00:00
Andreas Neustifter
44299c9507 Use ProfileInfo-API in ProfileInfo Loader and do more assertions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90446 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 11:00:37 +00:00
Andreas Neustifter
e2baf6b455 Converted ProfileInfo to template, added more API for ProfileInfo-preserving. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90445 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 09:30:12 +00:00
Evan Cheng
111e7629cc Teach tail duplication to update SSA form. Work in progress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90432 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 08:43:53 +00:00
Chris Lattner
89742c2c3f expand note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90429 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 07:43:46 +00:00
Chris Lattner
053321731c add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90428 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 07:41:54 +00:00
Nate Begeman
93e0ed31c5 Don't pull vector sext through both hands of a logical operation, since doing so prevents the fusion of vector sext and setcc into vsetcc. 
Add a testcase for the above transformation.
Fix a bogus use of APInt noticed while tracking this down.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90423 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 07:11:29 +00:00
Chris Lattner
56856b1f46 fix a build problem with VC++, PR5664, patch by Alp Toker! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90419 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 06:58:32 +00:00
Bob Wilson
324f4f1633 Recognize canonical forms of vector shuffles where the same vector is used for 
both source operands.  In the canonical form, the 2nd operand is changed to an
undef and the shuffle mask is adjusted to only reference elements from the 1st
operand.  Radar 7434842.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90417 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 06:40:55 +00:00
Jakob Stoklund Olesen
9f0d4e631d Don't call getValueType() on a null SDValue 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90415 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 05:15:35 +00:00
Owen Anderson
c9f2027adb Fix this crasher, and add a FIXME for a missed optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90408 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 03:43:29 +00:00
Evan Cheng
229694f0ee Fill out codegen SSA updater. It's not yet tested. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90395 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 02:31:43 +00:00
Bill Wendling
cb06403145 Revert r90371. It was causing build failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90383 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 01:54:07 +00:00
Jakob Stoklund Olesen
15d75d9f11 Don't hang on to pointers or references after vector::push_back. 
The MO reference to a MachineOperand can be invalidated by
MachineInstr::addOperand. Don't even use it for debugging.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90381 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 01:49:56 +00:00
Devang Patel
1d5cc1db59 Emit method definition DIE at module level (even for methods with inlined functino body at soure level) so that the debugger can invoke it. This fixes many test failures in gdb test suite. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90375 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 01:25:38 +00:00
Bill Wendling
b8e675c3c1 Further improvements: refactoring code that does the same thing into one 
function, converting "dyn_cast" to "cast", asserting the correct things, and
other general cleanups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90371 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 01:15:46 +00:00
Chris Lattner
bf108bdee5 yay for case insensitive file systems (?) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90370 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 01:10:05 +00:00
Chris Lattner
e568fa2d29 fix PR5673 by being more careful about pointers to functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90369 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 01:05:45 +00:00
Chris Lattner
35e86af8e5 remove some dead std::ostream using code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90366 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 00:55:04 +00:00
Chris Lattner
7896c9f436 improve portability to avoid conflicting with std::next in c++'0x. 
Patch by Howard Hinnant!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90365 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 00:50:42 +00:00
Bill Wendling
dd5eb02304 This initial code is meant to convert TargetData to use an AbstractTypesUser so 
that it doesn't have dangling pointers when abstract types are resolved. This
modifies it somewhat to address comments: making the "StructLayoutMap" an
anonymous structure, calling "removeAbstractTypeUser" when appropriate, and
adding asserts where helpful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90362 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 00:17:12 +00:00
Douglas Gregor
e731fa2957 Fix CMake makefiles 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90354 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 22:19:31 +00:00
Evan Cheng
651ea5376c Skeleton for MachineInstr level SSA updater. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90353 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 22:02:52 +00:00
Jim Grosbach
b51d3f9c8d Add MaxStackAlignment.cpp to CMake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90337 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 19:31:07 +00:00
Jim Grosbach
e27d205d5d Factor the stack alignment calculations out into a target independent pass. 
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90336 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 19:30:24 +00:00
Bob Wilson
f1e01dcc94 Don't count PHI instructions toward the limit for tail duplicating a block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90326 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 17:15:24 +00:00
Jim Grosbach
43a8241b65 Move EliminateDuplicatePHINodes() from SimplifyCFG.cpp to Local.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90324 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 17:06:45 +00:00
Andreas Neustifter
059a983531 Cheap, mostly strict, stable sorting. 
This is necessary for tests so the results are comparable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90320 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 15:57:15 +00:00
Benjamin Kramer
0fea11a805 Silence compiler warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90319 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 15:33:44 +00:00
Devang Patel
69f57b1f41 Clarify that DIEString does not keep a copy of the string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90318 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 15:25:16 +00:00
Owen Anderson
9ff5a23186 Cleanup/remove some parts of the lifetime region handling code in memdep and GVN, 
per Chris' comments.  Adjust testcases to match.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90304 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 07:35:19 +00:00
Chris Lattner
720e790480 factor some code better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90299 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 06:44:58 +00:00
Chris Lattner
65a9ab4f8f formatting cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90298 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 06:35:55 +00:00
Chris Lattner
bf796323b2 tidy up, remove dependence on order of evaluation of function args from EmitMemCpy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90297 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 06:05:42 +00:00
Mon P Wang
69a008075b Fixed an assertion failure for tracking sext of a vector of integers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90290 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 04:59:58 +00:00
Devang Patel
e3a18de4f6 Add utility routine to create subprogram definition entry from subprogram declaration entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90282 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 23:09:02 +00:00
Devang Patel
7d0750a10f Reuse existing subprogram DIE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90281 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 23:07:59 +00:00
Chris Lattner
6e1f16d522 return more useful error messages by using strerror to format errno 
instead of returning an ambiguous reason.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90275 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 22:51:41 +00:00
Evan Cheng
9836a26da3 Fix PR5391: support early clobber physical register def tied with a use (ewwww) 
- A valno should be set HasRedefByEC if there is an early clobber def in the middle of its live ranges. It should not be set if the def of the valno is defined by an early clobber.
- If a physical register def is tied to an use and it's an early clobber, it just means the HasRedefByEC is set since it's still one continuous live range.
- Add a couple of missing checks for HasRedefByEC in the coalescer. In general, it should not coalesce a vr with a physical register if the physical register has a early clobber def somewhere. This is overly conservative but that's the price for using such a nasty inline asm "feature".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90269 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 22:25:00 +00:00
Chris Lattner
1e8de49fe7 rename some variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90258 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 21:16:01 +00:00
Chris Lattner
1ffb70f21d tidy 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90257 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 21:15:15 +00:00
Dan Gohman
5b69fe767c Add edge source labels to SelectionDAG graphs, now that the graph printing 
framework omits differentiated edge sources in the case where the labels
are empty strings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90254 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 19:20:00 +00:00
Dan Gohman
0baf2a302f Minor cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90253 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 19:16:15 +00:00
Dan Gohman
241c595786 Trim an unnecessary #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90252 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 19:13:27 +00:00
Devang Patel
c09ddc1c79 Clear function specific containers while processing end of a function, even if DW_TAG_subprogram for current function is not found. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90247 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 18:13:48 +00:00
Jim Grosbach
d122874996 Thumb1 exception handling setjmp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90246 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 18:10:36 +00:00
Johnny Chen
b731e87649 For VLDM/VSTM (Advanced SIMD), set encoding bits Inst{11-8} to 0b1011. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90243 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 17:37:06 +00:00
Jakob Stoklund Olesen
8f72235a77 Move PHIElimination::isLiveOut method to LiveVariables. 
We want LiveVariables clients to use methods rather than accessing the
getVarInfo data structure directly. That way it will be possible to change the
LiveVariables representation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90240 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 17:13:31 +00:00
Chris Lattner
855d9da596 fix 255.vortex again, third time's the charm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90217 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 07:33:32 +00:00
Chris Lattner
46875c0bfb fix PR5640 by tracking whether a block is the header of a loop more 
precisely, which prevents us from infinitely peeling the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90211 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 06:04:43 +00:00
Jakob Stoklund Olesen
579d6d9fe3 Use CFG connectedness as a secondary sort key when deciding the order of copy coalescing. 
This means that well connected blocks are copy coalesced before the less connected blocks. Connected blocks are more difficult to
coalesce because intervals are more complicated, so handling them first gives a greater chance of success.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90194 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 03:03:00 +00:00
Dan Gohman
261a7d983d Devang pointed out that this code should use DIScope instead of 
DICompileUnit. This code now prints debug filenames successfully.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90181 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 00:45:56 +00:00
Evan Cheng
a4025df42d Fix PR5614: parts of a physical register def may be killed the rest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90180 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 00:44:45 +00:00
Johnny Chen
208d76cad9 For VMOV (immediate), make some of the encoding bits (cmode and op) unspecified. 
For VMOVv*i[16,32], op bit is don't care, and some cmode bits vary depending on
the immediate values.

Ref: Table A7-15 Modified immediate values for Advanced SIMD instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90173 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 00:02:02 +00:00
Devang Patel
deea564e53 If pointer type has a name then do not ignore the name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90172 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 23:56:56 +00:00
Dan Gohman
39a1fab856 Minor whitespace fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90166 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 23:33:53 +00:00
Dan Gohman
22f6526081 Fix a minor inconsistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90165 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 23:33:37 +00:00
Jakob Stoklund Olesen
ce7a663140 New virtual registers created for spill intervals should inherit allocation hints from the original register. 
This helps us avoid silly copies when rematting values that are copied to a physical register:

leaq	_.str44(%rip), %rcx
movq	%rcx, %rsi
call	_strcmp

becomes:

leaq	_.str44(%rip), %rsi
call	_strcmp

The coalescer will not touch the movq because that would tie down the physical register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90163 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 22:55:54 +00:00
Bob Wilson
3858225afc Reprioritize tests for tail duplication to be aggressive about indirect 
branches even when optimizing for code size.  Unless we find evidence to the
contrary in the future, the special treatment for indirect branches does not
have a significant effect on code size, and performance still matters with -Os.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90147 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 18:56:45 +00:00
Bob Wilson
15217e63bc Remove isProfitableToDuplicateIndirectBranch target hook. It is profitable 
for all the processors where I have tried it, and even when it might not help
performance, the cost is quite low.  The opportunities for duplicating
indirect branches are limited by other factors so code size does not change
much due to tail duplicating indirect branches aggressively.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90144 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 18:35:03 +00:00