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Author SHA1 Message Date
Owen Anderson
c008c5e08c Add testcase for PR2213. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49517 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 05:13:32 +00:00
Owen Anderson
8f46c78fcc Fix PR2213 by simultaneously making GVN more aggressive with the return values 
of calls and less aggressive with non-readnone calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49516 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 05:11:49 +00:00
Evan Cheng
b94d966716 New test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49514 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 23:49:09 +00:00
Evan Cheng
d2012d0c4b Remove implicit_def instructions that become dead as result of coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49513 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 23:48:35 +00:00
Evan Cheng
5d3600f576 Allow registers defined by implicit_def to be clobbered. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49512 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 23:47:53 +00:00
Dan Gohman
c04575f494 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49504 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 23:02:38 +00:00
Dan Gohman
b1e07ec6a4 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49502 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 22:27:06 +00:00
Owen Anderson
f062f10231 Fix for PR2190. Memdep's non-local caching was checking dirtied blocks in the 
wrong order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49499 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 22:13:32 +00:00
Dan Gohman
3bd659ba20 Make several symbols static. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49496 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 21:11:47 +00:00
Dan Gohman
eee962e1ce Teach InstCombine's ComputeMaskedBits to handle pointer expressions 
in addition to integer expressions. Rewrite GetOrEnforceKnownAlignment
as a ComputeMaskedBits problem, moving all of its special alignment
knowledge to ComputeMaskedBits as low-zero-bits knowledge.

Also, teach ComputeMaskedBits a few basic things about Mul and PHI
instructions.

This improves ComputeMaskedBits-based simplifications in a few cases,
but more noticeably it significantly improves instcombine's alignment
detection for loads, stores, and memory intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49492 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 18:43:06 +00:00
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