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Author SHA1 Message Date
Evan Cheng
172b70c62a A copy instruction may use a register multiple times on some targets. Change them all. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49491 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 18:38:47 +00:00
Evan Cheng
f0785153e5 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49469 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 08:03:14 +00:00
Chris Lattner
2189c17443 add a note, this is actually not too bad to implement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49466 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 05:54:50 +00:00
Chris Lattner
a825d75f1d move the x86-32 part of PR2108 here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49465 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 05:37:47 +00:00
Chris Lattner
db66750753 Fix the x86-64 side of PR2108 by adding a v2f64 version of 
MOVZQI2PQIrr.  This would be better handled as a dag combine 
(with the goal of eliminating the bitconvert) but I don't know
how to do that safely.  Thoughts welcome.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49463 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 05:13:43 +00:00
Chris Lattner
3dc2e96eec produce an error on invalid input instead of asserting: 
def : Pat<((v2f64 (vector_shuffle immAllZerosV_bc,
           ^



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49462 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 04:48:34 +00:00
Evan Cheng
80b09fe8bc Teach branch folding pass about implicit_def instructions. Unfortunately we can't just eliminate them since register scavenger expects every register use to be defined. However, we can delete them when there are no intra-block uses. Carefully removing some implicit def's which enable more blocks to be optimized away. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49461 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 02:32:10 +00:00
Chris Lattner
0c1963099f Disable an xform we've had for a long time, pow(x,0.5) -> sqrt. 
This is not safe for all inputs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49458 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 02:07:51 +00:00
Evan Cheng
5d4ed3ba11 Move memcpy / memset optimization pass after GVN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49457 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 01:33:05 +00:00
Evan Cheng
7e073baedb - More aggressively coalescing away copies whose source is defined by an implicit_def. 
- Added insert_subreg coalescing support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49448 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 20:57:25 +00:00
Dan Gohman
7d8143f0ef Make isVectorClearMaskLegal's operand list const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49446 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 20:09:42 +00:00
Dan Gohman
920c6828ee Fix some minor errors in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49445 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 20:08:06 +00:00
Dan Gohman
cedbacffd6 Add const qualifiers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49443 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 18:31:41 +00:00
Dan Gohman
c76230b485 Update comments to use 2.0 syntax type names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49442 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 18:24:25 +00:00
Dan Gohman
c2ffd4b1cb Add XMM1 as a second return value register for f32 and f64 on x86-64. This 
is needed for the x86-64-ABI handling of structs that contain floating-point
members that are returned by value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49441 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 17:54:37 +00:00
Dan Gohman
719e64e8c1 Add DX as a second return value register for i16 on x86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49440 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 17:53:38 +00:00
Chris Lattner
cc7f168c6c Generalize getUnaryFloatFunction to handle any FP unary function, automatically 
figuring out the suffix to use.  implement pow(2,x) -> exp2(x).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49437 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 17:48:11 +00:00
Chris Lattner
090a816623 remove capital letter from test name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49436 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 17:46:36 +00:00
Chris Lattner
8bb9a4f28f use the new ConstantFP::get method to make this work with 
long double and simplify the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49435 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 17:17:35 +00:00
Chris Lattner
d6d48c4e5b ConstantFP::get should be static. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49434 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 17:16:28 +00:00
Nate Begeman
59d28132bc Fix a bug where an incorrect bit mask would be generated if a target's last asm 
string began at a power of 2 in the string index.  For example, if "ret" started
at position 16, the ret instruction would be assigned code 16, but the mask would be AsmChars[] + Code & 15, not Code & 31.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49433 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 16:24:11 +00:00
Devang Patel
d4e0af9f89 Be conservative if getresult operand is neither call nor invoke. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49430 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 15:58:24 +00:00
Owen Anderson
a723d1e48f Factor a bunch of functionality related to memcpy and memset transforms out of 
GVN and into its own pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49419 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 08:23:16 +00:00
Owen Anderson
82a66291b0 Remove accidentally duplicated code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49418 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 07:55:01 +00:00
Evan Cheng
a541931ddb Unbreak teh build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49417 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 07:06:01 +00:00
Chris Lattner
288e78fbe7 add a simplified accessor for creating an fp constant of a 
particular value but variable type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49416 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 06:38:30 +00:00
Evan Cheng
f20d943bc6 Missed a hasInterval check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49415 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 01:30:15 +00:00
Chris Lattner
4592230265 add a version of ConstantFP::get that doesn't take a redundant Type* value, 
start migrating code over to use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49413 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 00:45:01 +00:00
Chris Lattner
77d00b0cea many cleanups to the pow optimizer. Allow it to handle powf, 
add support for  pow(x, 2.0) -> x*x.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49411 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 00:07:45 +00:00
Chris Lattner
def286408f make ConstantFP::isExactlyValue work for long double as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49410 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 00:03:58 +00:00
Devang Patel
cba931f601 Add CreateGetResult() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49398 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 20:41:22 +00:00
Duncan Sands
7497b92c2f Check that bodies and calls but not declarations 
are marked nounwind when compiling without
-fexceptions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49393 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 19:31:52 +00:00
Dale Johannesen
c8abfdec84 Rename -disable-required-unwind-tables to -unwind-tables-optional. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49391 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 18:10:08 +00:00
Dale Johannesen
e8277dc7d6 Rename -disable-required-unwind-tables to unwind-tables-optional. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49389 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 18:07:49 +00:00
Gabor Greif
d9c7dbfe44 merge r48768 from branches/ggreif/parallelized-test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49382 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 15:22:41 +00:00
Devang Patel
7518583044 Add multiple value return instruction constructor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49374 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 07:30:13 +00:00
Duncan Sands
92432a8db1 Convenience method for setting the nounwind 
attribute for a function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49373 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 07:23:58 +00:00
Chris Lattner
7098772436 silence warning when assertions are disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49371 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 05:49:09 +00:00
Devang Patel
34437f35e9 Fix insert point handling for multiple return values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49367 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 02:24:08 +00:00
Dale Johannesen
f2247cfb38 Handle the situation in 2008-01-25-EmptyFunction.ll 
correctly when unwind info is being generated.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49366 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 00:37:56 +00:00
Dale Johannesen
a25e5787bc Missed one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49365 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 00:14:59 +00:00
Dale Johannesen
235f7fb474 Add -disable-required-unwind-tables to tests 
that need it (usually, grepping for some string
found in unwind info)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49364 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 00:14:17 +00:00
Dale Johannesen
4e1b79459f Implement new llc flag -disable-required-unwind-tables. 
Corresponds to -fno-unwind-tables (usually default in gcc).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49361 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-08 00:10:24 +00:00
Ted Kremenek
9b01cc0ede Make getDirnameSep a static method (not part of Path's interface). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49354 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-07 22:01:32 +00:00
Ted Kremenek
cf55c8e221 Added method Path::getDirname(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49352 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-07 21:53:57 +00:00
Sam Bishop
a0562001d0 Added support for Create() calls that take an argument besides the 
deserializer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49350 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-07 21:36:46 +00:00
Dan Gohman
36b5c1338a Rename MemOperand to MachineMemOperand. This was suggested by 
review feedback from Chris quite a while ago. No functionality
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49348 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-07 19:35:22 +00:00
Tanya Lattner
cb76b12a3a Remove llvm-upgrade. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49347 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-07 18:32:47 +00:00
Tanya Lattner
148df159a3 Added note to getting started guide to use llvm-gcc4.2. 
Removed llvm-upgrade from documentations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49346 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-07 18:32:25 +00:00
Owen Anderson
412821284f Add operator= implementations to SparseBitVector, allowing it to be used in GVN. This results 
in both time and memory savings for GVN.  For example, one testcase went from 10.5s to 6s with
this patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49345 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-07 17:38:23 +00:00