Commit Graph

68911 Commits

Author SHA1 Message Date
Bob Wilson 006089b761 Use __builtin_shufflevector to implement vget_low and vget_high intrinsics.
This was suggested by Edmund Grimley Evans in pr8411.

llvm-svn: 123043
2011-01-07 23:40:49 +00:00
Bob Wilson 3fa9c064c2 Add an explanatory message for an assertion.
llvm-svn: 123042
2011-01-07 23:40:46 +00:00
Matt Beaumont-Gay 5cc7a1fcad Eliminate variable only used in debug builds.
llvm-svn: 123040
2011-01-07 22:34:58 +00:00
Devang Patel acbee0b0d9 Speculatively revert r123032.
llvm-svn: 123039
2011-01-07 22:33:41 +00:00
Devang Patel 39bd6cebcd Do not include DataTypes.h in llvm-c/lto.h.
This means avoid using uint32_t. This patch reverts r112200 and fixes original  problem by fixing argument type in lto.cpp.

llvm-svn: 123038
2011-01-07 22:26:25 +00:00
Evan Cheng 36f0a06593 Fix comment. INLINEASM node operand #3 is IsAlignStack bit.
llvm-svn: 123036
2011-01-07 21:38:59 +00:00
Bob Wilson 6f2b8966ca Lower some BUILD_VECTORS using VEXT+shuffle.
Patch by Tim Northover.

llvm-svn: 123035
2011-01-07 21:37:30 +00:00
Tobias Grosser fc3d7f664b InstCombine: Match min/max hidden by sext/zext
X = sext x; x >s c ? X : C+1 --> X = sext x; X <s C+1 ? C+1 : X
X = sext x; x <s c ? X : C-1 --> X = sext x; X >s C-1 ? C-1 : X
X = zext x; x >u c ? X : C+1 --> X = zext x; X <u C+1 ? C+1 : X
X = zext x; x <u c ? X : C-1 --> X = zext x; X >u C-1 ? C-1 : X
X = sext x; x >u c ? X : C+1 --> X = sext x; X <u C+1 ? C+1 : X
X = sext x; x <u c ? X : C-1 --> X = sext x; X >u C-1 ? C-1 : X

Instead of calculating this with mixed types promote all to the
larger type. This enables scalar evolution to analyze this
expression. PR8866

llvm-svn: 123034
2011-01-07 21:33:14 +00:00
Tobias Grosser 411e6eedff Some whitespace fixes
llvm-svn: 123033
2011-01-07 21:33:13 +00:00
Devang Patel 6381e1584c Appropriately truncate debug info range in dwarf output.
Enable live debug variables pass.

llvm-svn: 123032
2011-01-07 21:30:41 +00:00
Evan Cheng 0638c20e7c DBG_VALUE does not have any side effects; it also makes no sense to mark it cheap as a copy.
llvm-svn: 123031
2011-01-07 21:08:26 +00:00
Benjamin Kramer 134cde912a Revert 122959, it needs more thought. Add it back to README.txt with additional notes.
llvm-svn: 123030
2011-01-07 20:42:20 +00:00
Oscar Fuentes 9bf259581c Don't use -O3 on Mingw, as people report it as unreliable. Use -O2
instead.

llvm-svn: 123028
2011-01-07 20:31:03 +00:00
Jay Foad d81f3c9659 Simplify the allocation and freeing of Users' operand lists, now that
every BranchInst has a fixed number of operands.

llvm-svn: 123027
2011-01-07 20:29:02 +00:00
Jay Foad 814f1bb8e3 Remove the "ugly" method BranchInst::setUnconditionalDest().
llvm-svn: 123026
2011-01-07 20:26:51 +00:00
Jay Foad 89afb43b1e Remove all uses of the "ugly" method BranchInst::setUnconditionalDest().
llvm-svn: 123025
2011-01-07 20:25:56 +00:00
Evan Cheng a048c83fe4 Revert r122955. It seems using movups to lower memcpy can cause massive regression (even on Nehalem) in edge cases. I also didn't see any real performance benefit.
llvm-svn: 123015
2011-01-07 19:35:30 +00:00
David Greene 2f7cf7fcb4 Rename lisp-like functions as suggested by Gabor Greif as loooong time
ago.  This is both easier to learn and easier to read.

llvm-svn: 123001
2011-01-07 17:05:37 +00:00
Benjamin Kramer 1ec7ecce86 Try to unbreak the arm buildbot.
llvm-svn: 122999
2011-01-07 11:35:21 +00:00
Bob Wilson 99da75c17d Add testcases for PR8411 (vget_low and vget_high implemented as shuffles).
llvm-svn: 122997
2011-01-07 06:44:14 +00:00
Bob Wilson 8265d56638 Add ARM patterns to match EXTRACT_SUBVECTOR nodes.
Also fix an off-by-one in SelectionDAGBuilder that was preventing shuffle
vectors from being translated to EXTRACT_SUBVECTOR.
Patch by Tim Northover.

The test changes are needed to keep those spill-q tests from testing aligned
spills and restores.  If the only aligned stack objects are spill slots, we
no longer realign the stack frame.  Prior to this patch, an EXTRACT_SUBVECTOR
was legalized by loading from the stack, which created an aligned frame index.
Now, however, there is nothing except the spill slot in the stack frame, so
I added an aligned alloca.

llvm-svn: 122995
2011-01-07 04:59:04 +00:00
Bob Wilson d23b3d2dfc Fix a comment typo.
llvm-svn: 122994
2011-01-07 04:58:58 +00:00
Bob Wilson f291cb268f Change EXTRACT_SUBVECTOR to require a constant index.
We were never generating any of these nodes with variable indices, and there
was one legalizer function asserting on a non-constant index.  If we ever have
a need to support variable indices, we can add this back again.

llvm-svn: 122993
2011-01-07 04:58:56 +00:00
Bill Wendling 34e2bc0f08 Early exit if we don't have invokes. The 'Unwinds' vector isn't modified unless
we have invokes, so there is no functionality change here.

llvm-svn: 122990
2011-01-07 02:54:45 +00:00
Duncan Sands 61c5708b51 Fix the other problem reported in PR8582. Testcase and patch by
Nadav Rotem.

llvm-svn: 122983
2011-01-06 23:45:22 +00:00
Duncan Sands 64b75da088 Add a testcase for PR8582, which mysteriously fixed itself, in case the problem
comes back some day.

llvm-svn: 122982
2011-01-06 23:04:29 +00:00
Eric Christopher e516af753b Add some fairly duplicated code to let type legalization split illegal
typed atomics. This will lower exclusively to libcalls at the moment.

llvm-svn: 122979
2011-01-06 22:28:56 +00:00
Chris Lattner 84184b7207 With Benjamin's recent amazing patches, we should be able to do even better things :)
llvm-svn: 122978
2011-01-06 22:25:00 +00:00
Chris Lattner 171608e738 use isNullValue() to simplify code, add an assert.
llvm-svn: 122977
2011-01-06 22:24:29 +00:00
Devang Patel 70eb982843 Emit 128 bit constant.
This fixes PR 8913 crash.

llvm-svn: 122971
2011-01-06 21:39:25 +00:00
Bob Wilson 914df82a2e PR8921: LDM/POP do not support interworking prior to v5t.
llvm-svn: 122970
2011-01-06 19:24:41 +00:00
Bob Wilson e0bafd93b0 Remove extra whitespace.
llvm-svn: 122969
2011-01-06 19:24:36 +00:00
Bob Wilson 7c2c626805 Fix comment typo.
llvm-svn: 122968
2011-01-06 19:24:32 +00:00
Benjamin Kramer 1e01ade2e8 Add a note from llvmdev, this time with more info.
llvm-svn: 122966
2011-01-06 17:35:50 +00:00
Abramo Bagnara a41d7aebee Fixed parsing of hex floats.
llvm-svn: 122963
2011-01-06 16:55:14 +00:00
Rafael Espindola 9f9a10691a Correctly disassemble truncated asm.
Patch by Richard Simth.

llvm-svn: 122962
2011-01-06 16:48:42 +00:00
Benjamin Kramer ae67cc13a9 InstCombine: Turn _chk functions into the "unsafe" variant if length and max langth are equal.
This happens when we take the (non-constant) length from a malloc.

llvm-svn: 122961
2011-01-06 14:22:52 +00:00
Benjamin Kramer 605f21a6c8 EarlyCSE does this now (and GVN always did it).
llvm-svn: 122960
2011-01-06 13:19:46 +00:00
Benjamin Kramer 799b011276 InstCombine: If we call llvm.objectsize on a malloc call we can replace it with the size passed to malloc.
llvm-svn: 122959
2011-01-06 13:11:05 +00:00
Benjamin Kramer a76cc117e0 InstCombine: Teach llvm.objectsize folding to look through GEPs.
llvm-svn: 122958
2011-01-06 13:07:49 +00:00
Benjamin Kramer 3aa955e906 Remove dead code and silence warnings.
llvm-svn: 122957
2011-01-06 13:01:02 +00:00
Evan Cheng 7998b1d6fe Use movups to lower memcpy and memset even if it's not fast (like corei7).
The theory is it's still faster than a pair of movq / a quad of movl. This
will probably hurt older chips like P4 but should run faster on current
and future Intel processors. rdar://8817010

llvm-svn: 122955
2011-01-06 07:58:36 +00:00
Chris Lattner 245de78e06 add a note about object size from drystone, add a poorly optimized loop from 179.art.
llvm-svn: 122954
2011-01-06 07:41:22 +00:00
Chris Lattner 73552c2cce add a trivial instcombine missed in Dhrystone
llvm-svn: 122953
2011-01-06 07:09:23 +00:00
Evan Cheng 3ae2b79aa3 Re-implement r122936 with proper target hooks. Now getMaxStoresPerMemcpy
etc. takes an option OptSize. If OptSize is true, it would return
the inline limit for functions with attribute OptSize.

llvm-svn: 122952
2011-01-06 06:52:41 +00:00
Chris Lattner 5858e091a6 implement constant folding support for an exotic constant expr:
ret i64 ptrtoint (i8* getelementptr ([1000 x i8]* @X, i64 1, i64 sub (i64 0, i64 ptrtoint ([1000 x i8]* @X to i64))) to i64)

to "ret i64 1000".  This allows us to correctly compute the trip count
on a loop in PR8883, which occurs with std::fill on a char array.  This
allows us to transform it into a memset with a constant size.

llvm-svn: 122950
2011-01-06 06:19:46 +00:00
Evan Cheng c052ba7ff3 Revert r122936. I'll re-implement the change.
llvm-svn: 122949
2011-01-06 06:17:53 +00:00
Michael J. Spencer 1d3c4a7b94 UnitTests/Path: Add magical tests. This will also test identify_magic.
llvm-svn: 122948
2011-01-06 05:58:02 +00:00
Michael J. Spencer 1f06360002 UnitTests/Path: More ASSERT_NO_ERROR cleanup.
llvm-svn: 122947
2011-01-06 05:57:54 +00:00
Cameron Zwarich 9ec19ea06a Add the CallInst optimizations that don't involve expanding inline assembly to
OptimizeInst() so that they can be used on a worklist instruction.

llvm-svn: 122945
2011-01-06 02:56:42 +00:00