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Author SHA1 Message Date
Jim Grosbach
fc1a161d76 Switch the fixed-length disassembler to be table-driven. 
Refactor the TableGen'erated fixed length disassemblmer to use a
table-driven state machine rather than a massive set of nested
switch() statements.

As a result, the ARM Disassembler (ARMDisassembler.cpp) builds much more
quickly and generates a smaller end result. For a Release+Asserts build on
a 16GB 3.4GHz i7 iMac w/ SSD:

Time to compile at -O2 (averaged w/ hot caches):
  Previous: 35.5s
  New:       8.9s

TEXT size:
  Previous: 447,251
  New:      297,661

Builds in 25% of the time previously required and generates code 66% of
the size.

Execution time of the disassembler is only slightly slower (7% disassembling
10 million ARM instructions, 19.6s vs 21.0s). The new implementation has
not yet been tuned, however, so the performance should almost certainly
be recoverable should it become a concern.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161888 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 19:06:05 +00:00
Owen Anderson
d7a85b17bd Fix the construction of the magic constant for roundToIntegral to be 64-bit safe. Fixes c-torture/execute/990826-0.c 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161885 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 18:51:15 +00:00
David Blaikie
f6933e6a18 Fix the make update target to work even when sub repo repositories are ignored. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161883 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 18:33:50 +00:00
Daniel Dunbar
7126ee00ab Update configure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161881 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 18:14:22 +00:00
Daniel Dunbar
8b5bee495f [configure] Add a --enable-keep-symbols configure flag. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161880 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 18:14:20 +00:00
Kostya Serebryany
e60da02281 [asan] insert crash basic blocks inline as opposed to inserting them at the end of the function. This doesn't seem to fix or break anything, but is considered to be more friendly to downstream passes (test change) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161871 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 14:05:50 +00:00
Kostya Serebryany
ebd6454929 [asan] insert crash basic blocks inline as opposed to inserting them at the end of the function. This doesn't seem to fix or break anything, but is considered to be more friendly to downstream passes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161870 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 14:04:51 +00:00
Craig Topper
cacafd410b Factor duplicate calls to getUNDEF in several functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161860 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 08:18:43 +00:00
Craig Topper
6d6881532c Re-factor intrinsic lowering to combine common parts of similar intrinsics. Reduces compiled code size a little bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161859 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 07:43:25 +00:00
Craig Topper
750d7616c6 Change greater than to greater than or equal so that an identical sized store to the same offset is treated as completing overwriting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161857 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 07:32:05 +00:00
Richard Smith
bb57febe3c Fix undefined behavior: binding null pointer to reference. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161853 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 05:31:26 +00:00
Nadav Rotem
3e883734fa During the CodeGenPrepare we often lower intrinsics (such as objsize) 
and allow some optimizations to turn conditional branches into unconditional.
This commit adds a simple control-flow optimization which merges two consecutive
basic blocks which are connected by a single edge. This allows the codegen to
operate on larger basic blocks.

rdar://11973998



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161852 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 05:19:07 +00:00
Eric Christopher
443c9ed768 Grammar. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161851 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 05:13:29 +00:00
Richard Smith
b8ea08ca8c Avoid undefined behavior in DenseMap::shrink_and_clear(). Log2_32_Ceil(0) 
returns 32. This change mirrors the corresponding code in
SmallDenseMap::shrink_and_clear().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161829 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 02:56:51 +00:00
Eric Christopher
a61d3a98c4 Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161826 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 01:09:10 +00:00
NAKAMURA Takumi
1251263144 llvm/test/CodeGen/ARM/floorf.ll: Add explicit -mtriple=arm-unknown-unknown, or it fails on msvc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161825 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-14 00:56:06 +00:00
Owen Anderson
7c626d3097 Add a roundToIntegral method to APFloat, which can be parameterized over various rounding modes. Use this to implement SelectionDAG constant folding of FFLOOR, FCEIL, and FTRUNC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161807 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 23:32:49 +00:00
Jakob Stoklund Olesen
03e593efc6 Transfer weights in transferSuccessorsAndUpdatePHIs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161805 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 23:13:25 +00:00
Jakob Stoklund Olesen
cb6889b23d Print out MachineBasicBlock successor weights when available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161804 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 23:13:23 +00:00
Nadav Rotem
7b6783a03f LICM uses AliasSet information to hoist and sink instructions. However, other passes, such as LoopRotate 
may invalidate its AliasSet because SSAUpdater does not update the AliasSet properly.
This patch teaches SSAUpdater to notify AliasSet that it made changes.
The testcase in PR12901 is too big to be useful and I could not reduce it to a normal size. 

rdar://11872059 PR12901



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161803 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 23:06:54 +00:00
Nadav Rotem
8dff60e96a MemoryDependenceAnalysis attempts to find the first memory dependency for function calls. 
Currently, if GetLocation reports that it did not find a valid pointer (this is the case for volatile load/stores),
we ignore the result. This patch adds code to handle the cases where we did not obtain a valid pointer.

rdar://11872864  PR12899



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161802 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 23:03:43 +00:00
Jim Grosbach
6d2986cd03 ARM: Move Thumb2 tests to Thumb2 test file and fix CHECK lines. 
These tests weren't actually being run before (missing ':' after CHECK).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161800 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 22:25:44 +00:00
Jakob Stoklund Olesen
43600e95ec Remove the TII::scheduleTwoAddrSource() hook. 
It never does anything when running 'make check', and it get's in the
way of updating live intervals in 2-addr.

The hook was originally added to help form IT blocks in Thumb2 code
before register allocation, but the pass ordering has changed since
then, and we run if-conversion after register allocation now.

When the MI scheduler is enabled, there will be no less than two
schedulers between 2-addr and Thumb2ITBlockPass, so this hook is
unlikely to help anything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161794 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 21:52:57 +00:00
Bill Wendling
6de47d611e Rename test since it's not linux-specific. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161792 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 21:32:42 +00:00
Manman Ren
a41db53f66 ARM: enable struct byval for AAPCS-VFP. 
This change is to be enabled in clang.

rdar://9877866


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161789 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 21:22:50 +00:00
Bill Wendling
6d86f3cdfc Whitespace cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161788 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 21:20:43 +00:00
Jakob Stoklund Olesen
786556c268 Count triangles and diamonds in early if-conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161783 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 21:03:27 +00:00
Jakob Stoklund Olesen
5f6d36335b Delete dead typedef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161782 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 21:03:25 +00:00
Jakob Stoklund Olesen
bc70ff3cb9 Handle extra Tail predecessors in if-conversion. 
It is still possible to if-convert if the tail block has extra
predecessors, but the tail phis must be rewritten instead of being
removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161781 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 20:49:04 +00:00
Arnold Schwaighofer
d252aa43c9 [Hexagon] Don't mark callee saved registers as clobbered by a tail call 
This was causing unnecessary spills/restores of callee saved registers.

Fixes PR13572.

Patch by Pranav Bhandarkar!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161778 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 19:54:01 +00:00
Manman Ren
2e018f1cf6 Fix failure on Atom bot due to r161769 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161777 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 19:34:29 +00:00
Nadav Rotem
df8320313b Do not optimize (or (and X,Y), Z) into BFI and other sequences if the AND ISDNode has more than one user. 
rdar://11876519



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161775 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 18:52:44 +00:00
Manman Ren
c586d26812 X86: move Int_CVTSD2SSrr, Int_CVTSI2SSrr, Int_CVTSI2SDrr, Int_CVTSS2SDrr from 
OpTbl1 to OpTbl2 since they have 3 operands and the last operand can be changed
to a memory operand.

PR13576


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161769 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 18:29:41 +00:00
Eric Christopher
001d219b97 Add support for the %H output modifier. 
Patch by Weiming Zhao.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161768 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 18:18:52 +00:00
David Blaikie
365a1d48d8 Ignore known externally-homed tools. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161765 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 17:50:44 +00:00
Manman Ren
de7f1c2517 X86: when auto-detecting the subtarget features, make sure use IsIntel to detect 
Nehalem, Westmere and Sandy Bridge. AMD also has processor family 6.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161763 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 17:26:46 +00:00
Nadav Rotem
a3a3219b3a Fix a documentation typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161758 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 15:29:53 +00:00
Kostya Serebryany
11c2a47af8 [asan] remove the code for --asan-merge-callbacks as it appears to be a bad idea. (partly related to Bug 13225) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161757 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 14:08:46 +00:00
Alexander Kornienko
8932fe4d2b Added test for non-static use of cl::opt (fixed in r160170) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161751 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 10:43:36 +00:00
Tim Northover
88fc697b7c Add test for previous commit correcting NEON load patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161750 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 10:38:45 +00:00
Tim Northover
e0b464f291 Use correct loads for vector types during extending-load operations. 
Previously, we used VLD1.32 in all cases, however there are both 16 and 64-bit
accesses being selected, so we need to use an appropriate width load in those
cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161748 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 09:06:31 +00:00
Craig Topper
2f1b2ec1e7 Tidy up VSETCC lowering code a bit more by adding an llvm_unreachable and putting an a couple if conditions in a better order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161746 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 03:42:38 +00:00
Craig Topper
523908d1be Refactor code a bit to share commonalities. No functional change intended. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161745 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 02:34:03 +00:00
Craig Topper
ec6593cf84 Fix an unused variable warning from r161742. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161743 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 01:26:45 +00:00
Craig Topper
bccc8ce9b8 Remove the LowerMMXCONCAT_VECTORS function. It could never execute because there are no legal 64-bit vector types that could be used as inputs to a 128-bit concat_vectors. Remove a target specific SDNode and its patterns that become unused as a result. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161742 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-13 01:23:55 +00:00
Nick Lewycky
af402acff3 Give this test an explicit triple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161740 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-12 08:21:27 +00:00
Nick Lewycky
0c5602de8c When emitting the PC range in an FDE, use the same data encoding for both ends 
of the range. Fixes PR13581!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161739 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-12 08:09:45 +00:00
Craig Topper
2c63d5e8c2 Remove call to setOperationAction for SETCC of v4f32. SETCC returns an integer type not an FP type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161738 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-12 05:31:32 +00:00
Craig Topper
b151a64618 Remove unnecessary call to setOperationAction for SETCC of v2i64 under SSE42. It was already called for the same under SSE2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161737 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-12 05:15:16 +00:00
Arnold Schwaighofer
a7016d6fc1 Revert 161581: Patch to implement UMLAL/SMLAL instructions for the ARM 
architecture

It broke MultiSource/Applications/JM/ldecod/ldecod on armv7 thumb O0 g and armv7
thumb O3.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161736 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-12 05:11:56 +00:00