Commit Graph

26461 Commits

Author SHA1 Message Date
Bill Wendling
94f0a38a00 Fix comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61538 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-01 01:19:59 +00:00
Bill Wendling
3479be91c4 Add transformation:
xor (or (icmp, icmp), true) -> and(icmp, icmp)

This is possible because of De Morgan's law.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-01 01:18:23 +00:00
Duncan Sands
1010941954 Look through phi nodes and select instructions when
calculating nocapture attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61535 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-31 20:21:34 +00:00
Duncan Sands
17da06ffbd Don't analyze arguments already marked 'nocapture'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61532 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-31 18:08:59 +00:00
Duncan Sands
9e89ba31f1 Rename AddReadAttrs to FunctionAttrs, and teach it how
to work out (in a very simplistic way) which function
arguments (pointer arguments only) are only dereferenced
and so do not escape.  Mark such arguments 'nocapture'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61525 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-31 16:14:43 +00:00
Owen Anderson
7d211e299f Get live interval reconstruction several steps closer to working.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61514 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-31 02:00:25 +00:00
Chris Lattner
d23b799d7d add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61513 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-31 00:54:13 +00:00
Scott Michel
02d711b93e - Start moving target-dependent nodes that could be represented by an
instruction sequence and cannot ordinarily be simplified by DAGcombine
  into the various target description files or SPUDAGToDAGISel.cpp.

  This makes some 64-bit operations legal.

- Eliminate target-dependent ISD enums.

- Update tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61508 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-30 23:28:25 +00:00
Bill Wendling
998dee96d3 Linux wants the FDE initial location and address range to be forced to 32-bit.
Darwin doesn't. Make this optional for platforms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61484 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 22:12:11 +00:00
Bill Wendling
bce452815c The FDE initial location and address range data should be free to be 64-bit
(quad) on a 64-bit platform. This fixes a problem with EH frames on Darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61483 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 21:51:42 +00:00
Duncan Sands
f08bf1193c Make stripPointerCasts and getUnderlyingObject
non-recursive.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61479 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 21:06:19 +00:00
Duncan Sands
2964fe37ae Experiments show that looking through phi nodes
and select instructions doesn't buy anything here
except extra complexity: the only difference in
the entire testsuite was that a readonly function
became readnone in MiBench/consumer-typeset.  Add
a comment about this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61478 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 20:51:17 +00:00
Misha Brukman
e9dd47afa6 Fixed spelling, removed trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61477 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 20:08:23 +00:00
Duncan Sands
516ec62bfe Allow readnone functions to read (and write!) global
constants, since doing so is irrelevant for aliasing
purposes.  While this doesn't increase the total number
of functions marked readonly or readnone in MultiSource/
Applications (3089), it does result in 12 functions being
marked readnone rather than readonly.
Before:
  readnone: 820
  readonly: 2269
After:
  readnone: 832
  readonly: 2257


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61469 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 11:34:09 +00:00
Duncan Sands
2b7fc1ef53 Add braces, as suggested by a gcc warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61465 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 08:05:02 +00:00
Scott Michel
1df30c4061 - Various '#if 0' cleanups.
- Move v4i32, i32 mul into SPUInstrInfo.td, with a few more instruction
  cleanups there as well.
- Make SMUL_LOHI, UMUL_LOHI competely illegal for Cell SPU, to better
  assist Chris to see the problem in bug 3101.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61464 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 03:23:36 +00:00
Scott Michel
845145f8b5 Teach LeaglizeDAG that i64 mul can be a libcall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61463 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 03:21:37 +00:00
Chris Lattner
9ace0cdb12 select constant exprs should have the same constraints as select instructions,
notably, they should support vectors and aggregates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61462 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 00:16:12 +00:00
Chris Lattner
b76ec320dc move select validation logic into a shared place where the select ctor,
verifier, asm parser, etc can share it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61461 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 00:12:50 +00:00
Owen Anderson
d4f6fe55eb Fix up kill/dead marking in the new live interval reconstruction code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61460 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-28 23:35:13 +00:00
Owen Anderson
60d4f6ded2 Add prototype code for recomputing a live interval's ranges and valnos through recursive phi construction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61458 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-28 21:48:48 +00:00
Nick Lewycky
3037eda1ef Check that the function prototypes are correct before assuming that the
parameters are pointers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61451 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-27 16:20:53 +00:00
Scott Michel
f0569be4a9 - Remove Tilmann's custom truncate lowering: it completely hosed over
DAGcombine's ability to find reasons to remove truncates when they were not
  needed. Consequently, the CellSPU backend would produce correct, but _really
  slow and horrible_, code.

  Replaced with instruction sequences that do the equivalent truncation in
  SPUInstrInfo.td.

- Re-examine how unaligned loads and stores work. Generated unaligned
  load code has been tested on the CellSPU hardware; see the i32operations.c
  and i64operations.c in CodeGen/CellSPU/useful-harnesses.  (While they may be
  toy test code, it does prove that some real world code does compile
  correctly.)

- Fix truncating stores in bug 3193 (note: unpack_df.ll will still make llc
  fault because i64 ult is not yet implemented.)

- Added i64 eq and neq for setcc and select/setcc; started new instruction
  information file for them in SPU64InstrInfo.td. Additional i64 operations
  should be added to this file and not to SPUInstrInfo.td.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61447 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-27 04:51:36 +00:00
Chris Lattner
e55484eb45 Add a simple pattern for matching 'bt'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61426 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-25 05:34:37 +00:00
Chris Lattner
f1e9fd5676 Fix some JIT encodings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61425 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-25 01:32:49 +00:00
Chris Lattner
d1e3229e4b BT memory operands load from their address operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61424 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-25 01:27:10 +00:00
Chris Lattner
1c39d4cfaa translateX86CC can never fail. Simplify it based on this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61423 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24 23:53:05 +00:00
Bill Wendling
722f5f1cfb Darwin likes for the EH frame to be non-local.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61420 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24 08:05:17 +00:00
Bill Wendling
d4121bef3c GCC doesn't emit DW_EH_PE_sdata4 for the FDE encoding on Darwin. I'm not sure
about other platforms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61415 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24 05:25:49 +00:00
Dan Gohman
82779704ff Fix a compiler-abort on a testcase where the stack-pointer is added to
a symbolic constant. This is unlikely to be intentional, but it
shouldn't crash the compiler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61408 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24 00:27:51 +00:00
Chris Lattner
4328708bad indentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61407 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-24 00:11:37 +00:00
Dale Johannesen
7c7bc722ec Change comments so everybody can understand them, hopefully.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61405 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 23:47:22 +00:00
Chris Lattner
4c78e0286a simplify some control flow and reduce indentation, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61404 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 23:42:27 +00:00
Dale Johannesen
f6727b01a5 Revert 61362 and 61402 until SPEC breakage is fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61403 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 23:21:35 +00:00
Dale Johannesen
2fa2517324 This fixes the bug in 175.vpr. It doesn't fix the
other SPEC breakage.  I'll be reverting all recent
changes shortly, this checking is mostly so this
change doesn't get lost.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61402 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 23:05:26 +00:00
Dale Johannesen
f9cbc1f9ac Add another permutation where we should get rid of a-a.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61401 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 23:01:27 +00:00
Dan Gohman
c7a37d4ff2 Add instruction patterns and encodings for the x86 bt instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61400 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 22:45:23 +00:00
Anton Korobeynikov
56d245ba8b Restore debug printing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61398 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 22:26:18 +00:00
Anton Korobeynikov
e2f95e9b61 Sometimes APInt syntax is really ugly... :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61397 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 22:26:01 +00:00
Anton Korobeynikov
1bfe237d69 Indent stuff properly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61396 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 22:25:45 +00:00
Anton Korobeynikov
2321858c8c Initial checkin of APInt'ififcation of switch lowering
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61395 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 22:25:27 +00:00
Devang Patel
fd1c6c3123 Silence unused variable warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61392 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 21:56:28 +00:00
Devang Patel
d0935c3f43 Fix typo.
Silence unused variable warning.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61391 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 21:55:38 +00:00
Devang Patel
2755896fd0 Silience unused warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61390 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 21:55:04 +00:00
Dan Gohman
0b1d4a798d Clean up the atomic opcodes in SelectionDAG.
This removes all the _8, _16, _32, and _64 opcodes and replaces each
group with an unsuffixed opcode. The MemoryVT field of the AtomicSDNode
is now used to carry the size information. In tablegen, the size-specific
opcodes are replaced by size-independent opcodes that utilize the
ability to compose them with predicates.

This shrinks the per-opcode tables and makes the code that handles
atomics much more concise.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61389 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 21:37:04 +00:00
Chris Lattner
9cf8ef63c6 add some notes for simplifylibcalls optimizations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61385 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 20:52:52 +00:00
Steve Naroff
1f33f8e4cc Tweak --version to include the date and time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61378 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 18:41:47 +00:00
Dan Gohman
c9a5b9e38b Rename BuildSchedUnits to BuildSchedGraph, and refactor the
code in ScheduleDAGSDNodes' BuildSchedGraph into separate functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61376 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 18:36:58 +00:00
Dan Gohman
237dee1259 Use isTerminator() instead of isBranch()||isReturn() in
several places. isTerminator() returns true for a superset
of cases, and includes things like FP_REG_KILL, which are
nither return or branch but aren't safe to move/remat/etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61373 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 17:28:50 +00:00
Dan Gohman
e1dfc7da89 Avoid an unnecessary call to allnodes_size(), which is linear.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61372 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23 17:24:50 +00:00