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0b48eade42
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4596 Commits

Author SHA1 Message Date
Devang Patel
0b48eade42 Reapply r112623. Included additional check for unused byval argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112659 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 22:22:42 +00:00
Devang Patel
81b79b5fa8 Revert r112623. It is causing self host build failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112631 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 19:41:03 +00:00
Devang Patel
8480c2e314 Remember byval argument's frame index during argument lowering and use this info to emit debug info. 
Fixes Radar 8367011.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112623 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 18:50:09 +00:00
Devang Patel
34ca5ed797 Offset is not always unsigned number. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 06:12:08 +00:00
Bruno Cardoso Lopes
2e46e78c53 zap unused method. x86 is the only user and already has a more powerfull version 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112571 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 02:36:20 +00:00
Bill Wendling
c040719a15 Revert r112461. It was failing on PPC... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112463 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 04:36:50 +00:00
Bill Wendling
25b141912c When adding a register, we should mark it as "def" if it can optionally define 
said (physical) register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 01:36:05 +00:00
Chris Lattner
61c70e98ac remove unions from LLVM IR. They are severely buggy and not 
being actively maintained, improved, or extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112356 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 04:09:24 +00:00
Dan Gohman
badcda4afa Completely disable tail calls when fast-isel is enabled, as fast-isel 
doesn't currently support dealing with this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112341 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 00:51:03 +00:00
Dan Gohman
7258df71fa Trim a #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112340 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 00:49:13 +00:00
Devang Patel
0991dfbbe0 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112305 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-27 22:25:51 +00:00
Devang Patel
4cf81c47fe Revert r112213. It is not needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112242 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 23:35:15 +00:00
Devang Patel
6cd467bd0e If node is not available then use FuncInfo.ValueMap to emit debug info for byval parameter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112238 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 22:53:27 +00:00
Devang Patel
e130d78ee1 Speculatively revert r112207. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112216 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 20:33:42 +00:00
Devang Patel
8f09beacb1 80 col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112215 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 20:32:32 +00:00
Devang Patel
f2ec7ae279 Update DanglingDebugInfo so that it can be used to track llvm.dbg.declare also. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112213 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 20:06:46 +00:00
Devang Patel
9d0796a0e0 Donot forget to resolve dangling debug info in a case where virtual register, used for a value, is initialized after a dbg intrinsic is seen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112207 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 18:36:14 +00:00
Chris Lattner
341fa09a3c Add a hackaround for PR7993 which is causing failures on x86 builders that lack sse2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112175 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 06:57:07 +00:00
Chris Lattner
8306968c14 implement SplitVecOp_CONCAT_VECTORS, fixing the included testcase with SSE1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112171 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 05:51:22 +00:00
Chris Lattner
6dabd9dba0 zap dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 02:57:35 +00:00
Chris Lattner
aafe626c7f remove some llvmcontext arguments that are now dead post-refactoring. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112104 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 23:00:45 +00:00
Chris Lattner
e6f7c267df Change handling of illegal vector types to widen when possible instead of 
expanding: e.g. <2 x float> -> <4 x float> instead of -> 2 floats.  This
affects two places in the code: handling cross block values and handling
function return and arguments.  Since vectors are already widened by 
legalizetypes, this gives us much better code and unblocks x86-64 abi
and SPU abi work.

For example, this (which is a silly example of a cross-block value):
define <4 x float> @test2(<4 x float> %A) nounwind {
 %B = shufflevector <4 x float> %A, <4 x float> undef, <2 x i32> <i32 0, i32 1>
 %C = fadd <2 x float> %B, %B
  br label %BB
BB:
 %D = fadd <2 x float> %C, %C
 %E = shufflevector <2 x float> %D, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
 ret <4 x float> %E
}

Now compiles into:

_test2:                                 ## @test2
## BB#0:
 addps %xmm0, %xmm0
 addps %xmm0, %xmm0
 ret

previously it compiled into:

_test2:                                 ## @test2
## BB#0:
 addps %xmm0, %xmm0
 pshufd $1, %xmm0, %xmm1
                                        ## kill: XMM0<def> XMM0<kill> XMM0<def>
 insertps $0, %xmm0, %xmm0
 insertps $16, %xmm1, %xmm0
 addps %xmm0, %xmm0
 ret

This implements rdar://8230384



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112101 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 22:49:25 +00:00
Devang Patel
ab43add695 Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112086 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 20:41:24 +00:00
Devang Patel
78a06e50b7 Remove dead argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112085 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 20:39:26 +00:00
Chris Lattner
3ac1884509 split the vector case of getCopyFromParts out to its own function, 
no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-24 23:20:40 +00:00
Chris Lattner
a13b860f4d split the vector case out of getCopyToParts into its own function. No 
functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111990 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-24 23:10:06 +00:00
Chris Lattner
549fa267ef tidy up, reduce indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111982 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-24 22:43:11 +00:00
Chandler Carruth
54f6163042 Fix some GCC warnings by providing a virtual destructor in the base of a class 
hierarchy with virtual methods and using llvm_unreachable to properly indicate
unreachable states which would otherwise leave variables uninitialized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111803 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-23 08:25:07 +00:00
Bob Wilson
63241f79e6 If the target says that an extending load is not legal, regardless of whether 
it involves specific floating-point types, legalize should expand an
extending load to a non-extending load followed by a separate extend operation.
For example, we currently expand SEXTLOAD to EXTLOAD+SIGN_EXTEND_INREG (and
assert that EXTLOAD should always be supported).  Now we can expand that to
LOAD+SIGN_EXTEND.  This is needed to allow vector SIGN_EXTEND and ZERO_EXTEND
to be used for NEON.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-19 23:52:39 +00:00
Dale Johannesen
6cf64a631a Make fast scheduler handle asm clobbers correctly. 
PR 7882.  Follows suggestion by Amaury Pouly, thanks.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111306 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 22:17:24 +00:00
Eric Christopher
44a2c3476b Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111223 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 01:30:33 +00:00
Evan Cheng
c120af4567 Add missing null check reported by Amaury Pouly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110649 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-10 02:39:45 +00:00
Owen Anderson
90c579de5a Reapply r110396, with fixes to appease the Linux buildbot gods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-06 18:33:48 +00:00
Owen Anderson
1f74590e9d Revert r110396 to fix buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-06 00:23:35 +00:00
Owen Anderson
9ccaf53ada Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static 
ID member as the sole unique type identifier.  Clean up APIs related to this change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110396 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-05 23:42:04 +00:00
Dan Gohman
d98af0a5b8 Eliminate unnecessary empty string literals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110183 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-04 01:39:08 +00:00
Oscar Fuentes
ee56c42168 Prefix next' iterator operation with llvm::'. 
Fixes potential ambiguity problems on VS 2010.

Patch by nobled!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110029 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-02 06:00:15 +00:00
Eli Friedman
1d17d199a4 PR7586: Make sure we don't claim that unknown bits are actually known in the 
ISD::AND case of TargetLowering::SimplifyDemandedBits.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110019 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-02 04:42:25 +00:00
Eli Friedman
ad78a88711 Fix for bug reported by Evzen Muller on llvm-commits: make sure to correctly 
check the range of the constant when optimizing a comparison between a
constant and a sign_extend_inreg node.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-30 06:44:31 +00:00
Nate Begeman
e0efc216eb Fix a crash in the dag combiner caused by ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself 
recursively and returning a SCALAR_TO_VECTOR node, but assuming the input was always a BUILD_VECTOR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109519 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 18:02:18 +00:00
Bill Wendling
dfc2c51d12 It's better to have the arrays, which would trigger the creation of stack 
protectors, to be near the stack protectors on the stack. Accomplish this by
tagging the stack object with a predicate that indicates that it would trigger
this. In the prolog-epilog inserter, assign these objects to the stack after the
stack protector but before the other objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109481 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 01:55:19 +00:00
Evan Cheng
e0e925efb3 The "excess register pressure" returned by HighRegPressure() is not accurate enough to factor into scheduling priority. Eliminate it and add early exits to speed up scheduling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 21:49:07 +00:00
Dan Gohman
7da5d3fc65 Handle Values with no value in getCopyFromRegs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109415 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 18:15:41 +00:00
Duncan Sands
b3893b193b Pacify gcc-4.5 which wrongly thinks that RExcess (passed as the Excess parameter) 
may be used uninitialized in the callers of HighRegPressure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109393 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 07:54:17 +00:00
Evan Cheng
e28ed16d25 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109383 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-25 18:59:43 +00:00
Bob Wilson
3f92f73970 Fix crashes when scheduling a CopyToReg node -- getMachineOpcode asserts on 
those.  Radar 8231572.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109367 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-25 05:34:27 +00:00
Evan Cheng
70017e44cd Add an ILP scheduler. This is a register pressure aware scheduler that's 
appropriate for targets without detailed instruction iterineries.
The scheduler schedules for increased instruction level parallelism in
low register pressure situation; it schedules to reduce register pressure
when the register pressure becomes high.

On x86_64, this is a win for all tests in CFP2000. It also sped up 256.bzip2
by 16%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109300 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-24 00:39:05 +00:00
Evan Cheng
3144687df7 - Allow target to specify when is register pressure "too high". In most cases, 
it's too late to start backing off aggressive latency scheduling when most
  of the registers are in use so the threshold should be a bit tighter.
- Correctly handle live out's and extract_subreg etc.
- Enable register pressure aware scheduling by default for hybrid scheduler.
  For ARM, this is almost always a win on # of instructions. It's runtime
  neutral for most of the tests. But for some kernels with high register
  pressure it can be a huge win. e.g. 464.h264ref reduced number of spills by
  54 and sped up by 20%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 22:39:59 +00:00
Dan Gohman
cd20c6fb18 Use the proper type for shift counts. This fixes a bootstrap error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109265 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 21:08:12 +00:00
Dan Gohman
a4f4d699ec DAGCombine (shl (anyext x, c)) to (anyext (shl x, c)) if the high bits 
are not demanded. This often allows the anyext to be folded away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109242 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 18:03:30 +00:00