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Author SHA1 Message Date
Evan Cheng
b6a638898a Increase SubtargetFeatureKV Value and Implies fields to 64 bits since some targets are getting very close to 32 subtarget features. Also teach tablegen to error when there are more than 64 features to guard against undefined behavior. rdar://9282332 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129590 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 19:35:46 +00:00
Joerg Sonnenberger
c25e8d8cea Add encoding tests for flds/filds 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129589 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 19:25:31 +00:00
Lenny Maiorani
437ef0cfb7 Implements StringRef::compare with bounds. It is behaves similarly to strncmp(). Unit tests also included. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129582 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 17:56:50 +00:00
Jakob Stoklund Olesen
44b7ae2355 Teach the SplitKit blitter to handle multiply defined values as well. 
The transferValues() function can now handle both singly and multiply defined
values, as long as the resulting live range is known. Only rematerialized values
have their live range recomputed by extendRange().

The updateSSA() function can now insert PHI values in bulk across multiple
values in multiple target registers in one pass. The list of blocks received
from transferValues() is in layout order which seems to work well for the
iterative algorithm. Blocks from extendRange() are still in reverse BFS order,
but this function is used so rarely now that it doesn't matter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129580 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 17:24:49 +00:00
Jakob Stoklund Olesen
806562cc59 Remember to set flag. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129579 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 17:24:46 +00:00
Rafael Espindola
f0adba9a7e Add 129518 back with a fix for when we are producing eh just because of debug info. 
Change ELF systems to use CFI for producing the EH tables. This reduces the
size of the clang binary in Debug builds from 690MB to 679MB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129571 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 15:11:06 +00:00
Chris Lattner
7a2bdde0a0 Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 05:18:47 +00:00
NAKAMURA Takumi
bcb8c6d09e Revert r129518, "Change ELF systems to use CFI for producing the EH tables. This reduces the" 
It broke several builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129557 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 03:35:57 +00:00
Evan Cheng
9eec66e604 Fix another fcopysign lowering bug. If src is f64 and destination is f32, don't 
forget to right shift the source by 32 first. rdar://9287902


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129556 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 01:31:00 +00:00
Johnny Chen
188ce9c78b For t2BFI, both Inst{26} and Inst{5} "should" be 0. 
Ref: I.1 Instruction encoding diagrams and pseudocode


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129552 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 00:35:08 +00:00
Michael J. Spencer
4babeeeeed Add 3DNow! intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129551 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 00:32:41 +00:00
Johnny Chen
de29a52940 The ARM disassembler did not handle the alignment correctly for VLD*DUP* instructions 
(single element or n-element structure to all lanes).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129550 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 00:10:45 +00:00
Evan Cheng
06b2a60ef9 Follow up on r127913. Fix Thumb revsh isel. rdar://9286766 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129548 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 23:27:44 +00:00
Eli Friedman
3ec01b7dac Add an instcombine for constructs like a | -(b != c); a select is more 
canonical, and generally leads to better code.  Found while looking at
an article about saturating arithmetic.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129545 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 22:41:27 +00:00
Owen Anderson
f6832bbda0 Fix an infinite alternation in JumpThreading where two transforms would repeatedly undo each other. The solution is to perform more aggressive constant folding to make one of the edges just folded away rather than trying to thread it. 
Fixes <rdar://problem/9284786>.

Discovered with CSmith.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129538 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 21:35:50 +00:00
Mon P Wang
481823aa81 Cleanup r129509 based on comments by Chris 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129532 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 19:20:42 +00:00
Johnny Chen
cd695fdac1 Add sanity checkings for Thumb2 Load/Store Register Exclusive family of operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129531 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 19:13:28 +00:00
Chris Lattner
b8295f7a0e move PR9661 out to here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129527 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 18:47:18 +00:00
Owen Anderson
a34d93630e Fix another instance of the DAG combiner not using the correct type for the RHS of a shift. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129522 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 17:30:49 +00:00
Daniel Dunbar
2cb2aa610e tests: Remove a FrontendC test which is no longer valid. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129519 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 15:21:16 +00:00
Rafael Espindola
3dae6e7333 Change ELF systems to use CFI for producing the EH tables. This reduces the 
size of the clang binary in Debug builds from 690MB to 679MB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129518 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 15:18:53 +00:00
Michael J. Spencer
9a0bac41b3 Fix whitespace and tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129517 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 14:33:36 +00:00
Mon P Wang
ddf9abf2b6 Cleanup r129472 by using a utility routine as suggested by Eli. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129509 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 08:04:01 +00:00
Andrew Trick
12f0dc6bb5 In the pre-RA scheduler, maintain cmp+br proximity. 
This is done by pushing physical register definitions close to their
use, which happens to handle flag definitions if they're not glued to
the branch. This seems to be generally a good thing though, so I
didn't need to add a target hook yet.

The primary motivation is to generate code closer to what people
expect and rule out missed opportunity from enabling macro-op
fusion. As a side benefit, we get several 2-5% gains on x86
benchmarks. There is one regression:
SingleSource/Benchmarks/Shootout/lists slows down be -10%. But this is
an independent scheduler bug that will be tracked separately.
See rdar://problem/9283108.

Incidentally, pre-RA scheduling is only half the solution. Fixing the
later passes is tracked by:
<rdar://problem/8932804> [pre-RA-sched] on x86, attempt to schedule CMP/TEST adjacent with condition jump

Fixes:
<rdar://problem/9262453> Scheduler unnecessary break of cmp/jump fusion


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129508 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 05:15:06 +00:00
Andrew Trick
b57b06647e Documented bugpoint --compile-custom --compile-command. 
I've used it a few times to reduce unit tests and gotten one request for information on it. It's not easy to use correctly because bugpoint doesn't tell you when you're doing it wrong.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129507 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 05:05:36 +00:00
Chris Lattner
df2ef9015f add a minor missed dag combine that is blocking mid-level optimization 
improvements, that will lead to fixing PR6627.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129504 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 04:21:42 +00:00
Chris Lattner
c0c7fca2fe sink a call into its only use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129503 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 04:12:47 +00:00
Chris Lattner
3c6e746b5f rework FoldBranchToCommonDest to exit earlier when there is a bonus 
instruction around, reducing work.

Greatly simplify handling of debug instructions.  There is no need to
build up a vector of them and then move them into the one predecessor
if we're processing a block.  Instead just rescan the block and *copy*
them into the pred.  If a block gets merged into multiple preds, this
will retain more debug info.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129502 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 02:44:53 +00:00
Chris Lattner
b3b15711b9 fix a couple -Wsign-compare warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129501 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 02:27:25 +00:00
Bill Wendling
d336de318e As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias 
(movzx/movsx) because they give more information. Revert that part of the patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129498 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 01:46:37 +00:00
Bill Wendling
c6df9883da Have the X86 back-end emit the alias instead of what's being aliased. In most 
cases, it's much nicer and more informative reading the alias.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129497 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 01:11:51 +00:00
Bill Wendling
eef965f04b Add an option to not print the alias of an instruction. It defaults to "print 
the alias".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129485 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 23:36:21 +00:00
Owen Anderson
7adf862eb2 During post-legalization DAG combining, be careful to only create shifts where the RHS is of the legal type for the new operation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129484 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 23:22:23 +00:00
Johnny Chen
e8d087ad35 Thumb disassembler did not handle tBRIND (indirect branch) properly. 
rdar://problem/9280370


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129480 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 21:59:01 +00:00
Mon P Wang
be0761c820 Vectors with different number of elements of the same element type can have 
the same allocation size but different primitive sizes(e.g., <3xi32> and
<4xi32>).  When ScalarRepl promotes them, it can't use a bit cast but
should use a shuffle vector instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129472 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 21:40:02 +00:00
Johnny Chen
6c7e4147dc Check for unallocated instruction encodings when disassembling Thumb Branch instructions (tBcc and t2Bcc). 
rdar://problem/9280470


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129471 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 21:35:49 +00:00
Johnny Chen
471d73d5d3 The LDR*T/STR*T (unpriviledged load/store) operations don't take SP or PC as Rt. 
rdar://problem/9279440


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129469 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 21:04:32 +00:00
Cameron Zwarich
5af60ce2a8 Fix a typo in an ARM-specific DAG combine. This fixes <rdar://problem/9278274>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129468 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 21:01:19 +00:00
Benjamin Kramer
8b505739f4 Fix format string warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129467 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 20:41:43 +00:00
Cameron Zwarich
1335022e19 Fix a regression caused by r102515 where explicit alignment on globals is 
ignored. There was a test to catch this, but it was just blindly updated in
a large change. This fixes another part of <rdar://problem/9275290>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129466 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 20:36:04 +00:00
Devang Patel
be7cd7580d Fix debug message. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129463 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 19:47:41 +00:00
Johnny Chen
9bb386a933 Check the corner cases for t2LDRSHi12 correctly and mark invalid encodings as such. 
rdar://problem/9276651


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129462 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 19:46:05 +00:00
Devang Patel
65705d559a Remove extra bytes that were added for gdb. We do not have good poiner to understand actual reason behind this fixme. Spot checking suggest that newer gdb does not need this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129461 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 19:41:17 +00:00
Nick Lewycky
b90e1d5aaf Use positive values since the value type is unsigned. Fixes a warning on the 
llvm-gcc-native-mingw32 builder.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129457 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 18:46:22 +00:00
Johnny Chen
119af20c7b Fix a bug where for t2MOVCCi disassembly, the TIED_TO register operand was not properly handled. 
rdar://problem/9276427


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129456 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 17:51:02 +00:00
Johnny Chen
6e3ccc3c85 Forgot to add this change for http://llvm.org/viewvc/llvm-project?view=rev&revision=129387. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129451 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 16:56:08 +00:00
Junjie Gu
7133b85b87 Fixed the revision 129449. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129450 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 16:45:49 +00:00
Junjie Gu
32644d9bfd Passing unroll parameters (unroll-count, threshold, and partial unroll) via LoopUnroll class's ctor. Doing so 
will allow multiple context with different loop unroll parameters to run.  This is a minor change and no effect 
on existing application.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129449 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 16:15:29 +00:00
Jim Grosbach
4f9f41f2f9 Load multiple object files and link them via RuntimeDyld in llvm-rtdyld. 
Relocations between the object modules are properly resolved, as in the
following trivial example:

$ cat t.c
int foo();
int main() {
    return foo();
}
$ cat foo.c
int foo() {
    return 65;
}
$ clang -c t.c -fno-asynchronous-unwind-tables
$ clang -c foo.c -fno-asynchronous-unwind-tables
$ llvm-rtdyld t.o foo.o ; echo $?
loaded '_main' at: 0x10015c000
65



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129448 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 15:49:40 +00:00
Rafael Espindola
0d9874b48d Add the alias analysis to the C api. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129447 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 15:44:58 +00:00