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6302 Commits

Author SHA1 Message Date
Duncan Sands
b6e223a9e8 Factorize (and generalize) the code promoting SELECT 
and BRCOND conditions.  Reorder a few methods while
there.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61547 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-01 20:36:20 +00:00
Duncan Sands
ba6d26275f Remove trailing spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61545 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-01 19:56:02 +00:00
Duncan Sands
5480c0469e Fix PR3274: when promoting the condition of a BRCOND node, 
promote from i1 all the way up to the canonical SetCC type.
In order to discover an appropriate type to use, pass
MVT::Other to getSetCCResultType.  In order to be able to
do this, change getSetCCResultType to take a type as an
argument, not a value (this is also more logical).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61542 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-01 15:52:00 +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
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
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
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
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
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
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
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
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
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
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
Dan Gohman
1578f8486d Minor code simplifications. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61371 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-23 17:22:32 +00:00
Dale Johannesen
58e39b0200 One more permutation of subtracting off a base value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61361 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-23 01:59:54 +00:00
Dan Gohman
00d448a341 Refactor a bunch of code out of AsmPrinter::EmitGlobalConstant into separate 
functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61345 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-22 21:14:27 +00:00
Dan Gohman
8044e9b3af Optimize setDepthDirty and setHeightDirty a little, as they showed 
up on a profile.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61344 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-22 21:11:33 +00:00
Dan Gohman
e19c6362d2 Use SmallVector's pop_back_val. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61277 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-20 16:42:33 +00:00
Dan Gohman
f89e6e6577 Use the correct Preds and Succs lists in setHeightDirty() 
and setDepthDirty(), respectively. This fixes PR3241.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61276 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-20 16:34:57 +00:00
Dan Gohman
6c3643c41b Use ~0u instead of -1u as the special value, to hopefully avoid 
warnings on compilers that warn about such things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61263 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-19 22:23:43 +00:00
Evan Cheng
5379f412bc Fix PR3149. If an early clobber def is a physical register and it is tied to an input operand, it effectively extends the live range of the physical register. Currently we do not have a good way to represent this. 
172     %ECX<def> = MOV32rr %reg1039<kill>
180     INLINEASM <es:subl $5,$1
        sbbl $3,$0>, 10, %EAX<def>, 14, %ECX<earlyclobber,def>, 9, %EAX<kill>,
36, <fi#0>, 1, %reg0, 0, 9, %ECX<kill>, 36, <fi#1>, 1, %reg0, 0
188     %EAX<def> = MOV32rr %EAX<kill>
196     %ECX<def> = MOV32rr %ECX<kill>
204     %ECX<def> = MOV32rr %ECX<kill>
212     %EAX<def> = MOV32rr %EAX<kill>
220     %EAX<def> = MOV32rr %EAX
228     %reg1039<def> = MOV32rr %ECX<kill>

The early clobber operand ties ECX input to the ECX def.

The live interval of ECX is represented as this:
%reg20,inf = [46,47:1)[174,230:0)  0@174-(230) 1@46-(47)

The right way to represent this is something like
%reg20,inf = [46,47:2)[174,182:1)[181:230:0)  0@174-(182) 1@181-230 @2@46-(47)

Of course that won't work since that means overlapping live ranges defined by two val#.

The workaround for now is to add a bit to val# which says the val# is redefined by a early clobber def somewhere. This prevents the move at 228 from being optimized away by SimpleRegisterCoalescing::AdjustCopiesBackFrom.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61259 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-19 20:58:01 +00:00
Chris Lattner
a33649e98c Fix some release-assert warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61244 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-19 17:03:38 +00:00
Rafael Espindola
2f6fea90a5 Fix bug 3202. 
The EH_frame and .eh symbols are now private, except for darwin9 and earlier.
The patch also fixes the definition of PrivateGlobalPrefix on pcc linux.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61242 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-19 10:55:56 +00:00
Bill Wendling
bebbded574 Perform this loop only when the -debug flag is specified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61238 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-19 02:09:57 +00:00
Dan Gohman
1385758215 Initialize the ImplicitDefed member, to avoid getting stale 
data from a previous block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61237 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-19 00:46:20 +00:00
Dan Gohman
a5b2fee757 Teach LowerSubregs to preserve kill/dead information when lowering 
subreg instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61220 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-18 22:14:08 +00:00
Dan Gohman
98c206921a Make LowerSubregs' debug output for EXTRACT_SUBREG consistent with 
that of INSERT_SUBREG and SUBREG_TO_REG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61218 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-18 22:11:34 +00:00
Dan Gohman
f04865f234 Fix a copy+pasto in an assertion message. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61217 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-18 22:07:25 +00:00
Dan Gohman
07af765049 Fix indentation level. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61216 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-18 22:06:01 +00:00
Dan Gohman
2ccc839669 Print subreg information in MachineInstr::dump. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61213 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-18 21:51:27 +00:00
Mon P Wang
87c8a8f304 Added support for vector widening. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61209 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-18 20:03:17 +00:00
Dan Gohman
7224170f6a Give MachineLICM a name, for -time-passes etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61184 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-18 01:37:56 +00:00
Dan Gohman
23b0d490cd Move post-RA scheduling before branch folding for now, because branch 
folding's tail merging doesn't currently preserve liveness information
which post-RA scheduling requires.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61183 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-18 01:36:42 +00:00
Owen Anderson
2ebf63f8e2 Re-apply r61158 in a form that no longer breaks tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61182 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-18 01:27:19 +00:00
Owen Anderson
c7a21941c5 Revert r61158 for now, as it caused some test failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61159 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-17 22:17:27 +00:00
Owen Anderson
25dffa743b Fix miscompilations caused by renumbering, and enable it as part of prealloc splitting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61158 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-17 22:06:59 +00:00
Mon P Wang
84aff84cfa Fix expansion of vsetcc to set the high bit for true instead of 1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61129 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-17 08:49:47 +00:00
Dan Gohman
89b64bd7e5 Double the amount of memory reserved for SUnits. This is a 
temporary workaround for an obscure bug. When node cloning is
used, it is possible that more SUnits will be created, and
if the SUnits std::vector has to reallocate, it will
invalidate all the graph edges.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61122 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-17 04:30:46 +00:00
Dan Gohman
fccf6dd377 Use getDepth() and getHeight() instead of accessing the 
Depth and Height members directly, as they may not be
current.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61121 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-17 04:25:52 +00:00