Dan Gohman
c04575f494
Fix a typo in a comment.
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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.
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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
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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.
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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
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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.
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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.
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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.
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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.
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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
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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:
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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.
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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.
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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.
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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.
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- 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.
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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.
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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.
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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.
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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
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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.
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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
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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.
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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
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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.
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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
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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.
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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
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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.
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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.
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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
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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.
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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,
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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,
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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.
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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()
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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
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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.
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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.
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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
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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.
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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
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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.
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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.
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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
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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.
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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
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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.
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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).
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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().
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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