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Author SHA1 Message Date
Jakob Stoklund Olesen
d5b029ad5b Fix a compile time regression caused by too small hash tables. 
Measure the worst case number of probes for a miss instead of the less
conservative number of probes required for an insertion.

Lower the limit to < 6 probes worst case.

This doubles the size of the ARM and X86 hash tables, other targets are
unaffected. LiveVariables runs 12% faster with this change.

<rdar://problem/9598545>

llvm-svn: 132999
 2011-06-14 16:58:16 +00:00
Rafael Espindola
1e809f99ad Add 132986 back, but avoid non-determinism if a bb address gets reused. 
llvm-svn: 132995
 2011-06-14 15:31:54 +00:00
Nadav Rotem
7b529545b7 Add a testcase for #9623 
llvm-svn: 132991
 2011-06-14 13:23:10 +00:00
Rafael Espindola
b90ea8a8c7 revert 132986 to see if the bots go green. 
llvm-svn: 132988
 2011-06-14 12:48:26 +00:00
Nadav Rotem
b638c3c037 This testcase cause a failure on some bots. Remove the failing test until 
further investigation.

llvm-svn: 132986
 2011-06-14 09:10:37 +00:00
Nadav Rotem
1b92c3d96c Add a testcase for checking the integer-promotion of many different vector 
types (with power of two types such as 8,16,32 .. 512).

Fix a bug in the integer promotion of bitcast nodes. Enable integer expanding
only if the target of the conversion is an integer (when the type action is
scalarize).

Add handling to the legalization of vector load/store in cases where the saved
vector is integer-promoted.

llvm-svn: 132985
 2011-06-14 08:11:52 +00:00
Nadav Rotem
db789f2d76 Disable trunc-store simplification on vectors. 
llvm-svn: 132984
 2011-06-14 07:18:26 +00:00
Cameron Zwarich
77f6a2d09e Be more obvious about what is being tested. 
llvm-svn: 132982
 2011-06-14 06:33:51 +00:00
Rafael Espindola
434d19ff30 Implement Jakob's suggestion on how to detect fall thought without calling 
AnalyzeBranch.

llvm-svn: 132981
 2011-06-14 06:08:32 +00:00
Bruno Cardoso Lopes
15b9096112 Since ARM's prefetch implementation predicted the presence of a instruction 
cache prefetch and now that the info from "prefetch" to "ARMPreload" is present,
only add a testcase for PLI.

llvm-svn: 132978
 2011-06-14 05:11:46 +00:00
Bruno Cardoso Lopes
b6afc5168f Add one more argument to the prefetch intrinsic to indicate whether it's a data 
or instruction cache access. Update the targets to match it and also teach
autoupgrade.

llvm-svn: 132976
 2011-06-14 04:58:37 +00:00
Rafael Espindola
56a82c5ef8 Make the threshold used by branch folding softer. Before we would get a 
sharp all or nothing transition when one extra predecessor was added. Now
we still test first ones for merging.

llvm-svn: 132974
 2011-06-14 04:41:17 +00:00
Nick Lewycky
6a95970b19 Fit banner in 80-col and adjust whitespace. No functionality changes. 
llvm-svn: 132964
 2011-06-14 03:23:52 +00:00
Bill Wendling
77d4d62693 Heuristic: If the number of operands in the alias are more than the number of 
operands in the aliasee, don't print the alias.

llvm-svn: 132963
 2011-06-14 03:17:20 +00:00
John McCall
7e1ecf5edb Test case for r132797. 
llvm-svn: 132962
 2011-06-14 03:02:05 +00:00
John McCall
fb32cfb402 Use IRBuilder to make our intrinsic calls in the inliner so that we pick up 
line info correctly.

llvm-svn: 132961
 2011-06-14 02:51:53 +00:00
Evan Cheng
754979c4d4 Update BitcodeWriter to match recent Triple changes. rdar://9603399 
llvm-svn: 132959
 2011-06-14 01:51:33 +00:00
Nick Lewycky
c473e8f0e2 Use Value::stripPointerCasts instead of reinventing part of the wheel. 
llvm-svn: 132954
 2011-06-14 00:59:24 +00:00
Cameron Zwarich
5b03baf002 Fix grammar. 
llvm-svn: 132952
 2011-06-13 23:39:23 +00:00
Jim Grosbach
eff8e5d153 Clean up a few 80 column violations. 
llvm-svn: 132946
 2011-06-13 22:54:22 +00:00
Cameron Zwarich
c122dc4050 Rename MergeInType to MergeInTypeForLoadOrStore. 
llvm-svn: 132940
 2011-06-13 21:44:43 +00:00
Cameron Zwarich
e2e3fc3fe2 Remove the HadAVector instance variable and replace it with a use of ScalarKind. 
llvm-svn: 132939
 2011-06-13 21:44:40 +00:00
Cameron Zwarich
3614d9bec8 Remove a vacuous check. 
llvm-svn: 132938
 2011-06-13 21:44:38 +00:00
Cameron Zwarich
934fdc5aba Have SRoA explicitly track the kind of scalar it is promoting. This is pretty 
spartan right now, but I plan to encode more information in this enum to improve
the correctness and reliability of SRoA. At least this first pass makes it
possible to make VectorTy an actual VectorType.

llvm-svn: 132937
 2011-06-13 21:44:35 +00:00
Cameron Zwarich
ab21bb23b9 Remove an argument that is always true. 
llvm-svn: 132936
 2011-06-13 21:44:31 +00:00
Jim Grosbach
3713c9ddfa Fix coordination for using R4 in Thumb1 as a scratch for SP restore. 
The logic for reserving R4 for use as a scratch needs to match that for
actually using it. Also, it's not necessary for immediate <=508, so adjust
the value checked.

llvm-svn: 132934
 2011-06-13 21:18:25 +00:00
Evan Cheng
4fd206b70b Aliased flag options should be directed to stdout, not stderr to be consistent. Patch by Julien Lerouge. 
llvm-svn: 132931
 2011-06-13 20:45:54 +00:00
Bill Wendling
a3941782e9 Add compatibility version when compiling the Apple way. 
<rdar://problem/9600408>

llvm-svn: 132929
 2011-06-13 20:14:37 +00:00
Stuart Hastings
65d0bc94b4 Avoid fusing bitcasts with dynamic allocas if the amount-to-allocate 
might overflow.  Re-typing the alloca to a larger type (e.g. double)
hoists a shift into the alloca, potentially exposing overflow in the
expression.  rdar://problem/9265821

llvm-svn: 132926
 2011-06-13 18:48:49 +00:00
Benjamin Kramer
8f8ff3e797 Move class into an anonymous namespace. 
llvm-svn: 132925
 2011-06-13 18:38:56 +00:00
Nadav Rotem
b075078f05 Fix a bug in FindMemType. When widening vector loads, use a wider memory type 
only if the number of packed elements is a power of two.
Bug found in Duncan's testcase.

llvm-svn: 132923
 2011-06-13 18:13:24 +00:00
Chris Lattner
71a35fd7e7 mention graph vis isn't available in Release builds. 
llvm-svn: 132916
 2011-06-13 15:59:35 +00:00
Benjamin Kramer
5079b61657 InstCombine: Fold A-b == C --> b == A-C if A and C are constants. 
The backend already knew this trick.

llvm-svn: 132915
 2011-06-13 15:24:24 +00:00
Benjamin Kramer
8bd126a5c6 Revert r132910 and r132909 on behalf of Michael. They didn't build with clang. 
llvm-svn: 132914
 2011-06-13 12:56:51 +00:00
Michael J. Spencer
8288453980 Revert the last two commits in the series. r132911, r132912. 
llvm-svn: 132913
 2011-06-13 11:53:31 +00:00
Michael J. Spencer
c6fd5f05fc Modify llvm-nm to use new Binary creation method. 
llvm-svn: 132912
 2011-06-13 11:12:42 +00:00
Michael J. Spencer
642af05937 Make Binary the parent of ObjectFile and update children to new interface. 
llvm-svn: 132911
 2011-06-13 11:12:33 +00:00
Michael J. Spencer
bc30ca9794 Add Binary class. This is a cleaner parent than ObjectFile. 
llvm-svn: 132910
 2011-06-13 11:12:12 +00:00
Michael J. Spencer
d6178b9f59 Add Object/Error. 
llvm-svn: 132909
 2011-06-13 11:11:59 +00:00
Michael J. Spencer
39a329f72f Fix spelling and sort CMakeLists.txt. 
llvm-svn: 132908
 2011-06-13 11:11:39 +00:00
Nick Lewycky
14f831fdfa It's possible that an all-zero GEP may be used as the argument to lifetime 
intrinsics. In fact, we'll optimize a bitcast to that when possible. Detect it
when looking for the lifetime intrinsics.

No test case, noticed by inspection.

llvm-svn: 132906
 2011-06-13 07:52:46 +00:00
Jakob Stoklund Olesen
2cac2ea7a1 Be less aggressive about hinting in RAFast. 
In particular, don't spill dirty registers only to satisfy a hint. It is
not worth it.

The attached test case provides an example where the fast allocator
would spill a register when other registers are available.

llvm-svn: 132900
 2011-06-13 03:26:46 +00:00
Jakob Stoklund Olesen
fbd53ff1bc Include callee-saved registers in debug output. 
llvm-svn: 132899
 2011-06-13 03:26:42 +00:00
Rafael Espindola
36459b9b7f Fix invalid uses of Twine. Hopefully this fixes the problem that Takumi is 
having.

llvm-svn: 132898
 2011-06-13 03:09:13 +00:00
Benjamin Kramer
b0765d6ac0 InstCombine: Shrink ((zext X) & C1) == C2 to fold away the cast if the "zext" and the "and" have one use. 
llvm-svn: 132897
 2011-06-12 22:48:00 +00:00
Benjamin Kramer
4a0f846bbd Simplify code. No functionality changes, name changes aside. 
llvm-svn: 132896
 2011-06-12 22:47:53 +00:00
Benjamin Kramer
b43ca62f3b Happy new year. 
Only 163 days late!

llvm-svn: 132895
 2011-06-12 15:26:54 +00:00
Nadav Rotem
187e654876 Fix a bug in the calculation of the vectorTypeBreakdown into registers. Odd 
types such as i33 were rounded to i32. Originated from Duncan's testcase.

llvm-svn: 132893
 2011-06-12 14:56:55 +00:00
Nadav Rotem
ba2691bc23 Improve the generated code by getCopyFromPartsVector for promoted integer types. 
Instead of scalarizing, and doing an element-by-element truncat, use vector
truncate.
Add support for scalarization of vectors:  i8 -> <1 x i1> (from Duncan's
testcase).

llvm-svn: 132892
 2011-06-12 14:49:38 +00:00
Nadav Rotem
1086d5acda Bugfix: When looking for a legal vector type, stop looking when a non-simple 
element type is found.
This fix addresses some of the tests in Duncan's testcase (forthcoming).

llvm-svn: 132891
 2011-06-12 14:40:30 +00:00