Evan Cheng
7823a411d5
Fix PR2620: Fix X86cmppd selection code so it expects operands to be v2f64.
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llvm-svn: 54376
2008-08-05 22:19:15 +00:00
Dan Gohman
8ef79ebd5f
Add an assert to catch invalid VECTOR_SHUFFLE mask indices.
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llvm-svn: 54329
2008-08-04 23:09:15 +00:00
Andrew Lenharth
77e3e86e70
Add atomic sub for other sizes
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llvm-svn: 54314
2008-08-03 20:17:34 +00:00
Dan Gohman
86b06335aa
Reapply r54147 with a constraint to only use the 8-bit
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subreg form on x86-64, to avoid the problem with x86-32
having GPRs that don't have 8-bit subregs.
Also, change several 16-bit instructions to use
equivalent 32-bit instructions. These have a smaller
encoding and avoid partial-register updates.
llvm-svn: 54223
2008-07-30 18:09:17 +00:00
Dan Gohman
43105328d3
Revert 54147.
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llvm-svn: 54148
2008-07-29 01:02:18 +00:00
Dan Gohman
26ec56c75c
Add x86 isel patterns to match what would be a ZERO_EXTEND_INREG operation,
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which is represented in codegen as an 'and' operation. This matches them
with movz instructions, instead of leaving them to be matched by and
instructions with an immediate field.
llvm-svn: 54147
2008-07-28 22:18:25 +00:00
Dan Gohman
2ce6f2ad5e
Rename SDOperand to SDValue.
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llvm-svn: 54128
2008-07-27 21:46:04 +00:00
Dan Gohman
91e5dcb680
Tidy SDNode::use_iterator, and complete the transition to have it
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parallel its analogue, Value::value_use_iterator. The operator* method
now returns the user, rather than the use.
llvm-svn: 54127
2008-07-27 20:43:25 +00:00
Nate Begeman
283b2da27a
Disable mov{L, LP, HP, HLP, *DUP} shuffles for mmx
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mmx needs its own fancy shuffle logic based on unpack; for now we get correct but awful code.
Also commit Mon Ping's VSETCC patch
llvm-svn: 54039
2008-07-25 19:05:58 +00:00
Nate Begeman
6559ada908
Fit in 80 cols
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llvm-svn: 54029
2008-07-25 17:34:41 +00:00
Nate Begeman
628ab8c673
Remove dead PatLeaf; there are a number of issues around MMX movl that need to be fixed.
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llvm-svn: 54026
2008-07-25 17:25:04 +00:00
Evan Cheng
a2b4b4ad99
Fix PR2485: do all 4-element SSE shuffles in max. of 2 shuffle instructions.
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Based on patch by Nicolas Capens.
llvm-svn: 53939
2008-07-23 00:22:17 +00:00
Evan Cheng
0c23ed6364
Factor out SSE 4 wide shuffle lowering code into its own function. No functionality changes.
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llvm-svn: 53933
2008-07-22 21:13:36 +00:00
Evan Cheng
0384670141
Fix PR2574: implement v2f32 scalar_to_vector.
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llvm-svn: 53927
2008-07-22 18:39:19 +00:00
Anton Korobeynikov
2d29ee06cd
Fix encoding of atomic compare and swap for i64
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llvm-svn: 53911
2008-07-22 16:22:48 +00:00
Evan Cheng
fa374ca223
Eliminate a compilation warning.
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llvm-svn: 53873
2008-07-21 20:02:45 +00:00
Dan Gohman
581cc87f57
Add titles to the various SelectionDAG viewGraph calls
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that include useful information like the name of the
block being viewed and the current phase of compilation.
llvm-svn: 53872
2008-07-21 20:00:07 +00:00
Duncan Sands
b0e3938651
Add VerifyNode, a place to put sanity checks on
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generic SDNode's (nodes with their own constructors
should do sanity checking in the constructor). Add
sanity checks for BUILD_VECTOR and fix all the places
that were producing bogus BUILD_VECTORs, as found by
"make check". My favorite is the BUILD_VECTOR with
only two operands that was being used to build a
vector with four elements!
llvm-svn: 53850
2008-07-21 10:20:31 +00:00
Evan Cheng
e001643358
Use movaps instead of movups to spill 16-byte vector values when default alignment is >= 16. This fixes some massive performance regressions.
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llvm-svn: 53844
2008-07-21 06:34:17 +00:00
Bill Wendling
75840e6435
Fix for first part of PR2562. Generate the "pinsrw" instruction for inserts
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into v4i16 vectors.
llvm-svn: 53807
2008-07-20 02:32:23 +00:00
Anton Korobeynikov
aaee859a18
Fix a FIXME :)
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llvm-svn: 53789
2008-07-19 13:15:46 +00:00
Anton Korobeynikov
4e05489745
Use generic ELFTargetAsmInfo and DarwinTargetAsmInfo for X86 code
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llvm-svn: 53788
2008-07-19 13:15:21 +00:00
Anton Korobeynikov
b7a49925a1
Use aligned stack spills, where possible. This fixes PR2549.
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llvm-svn: 53784
2008-07-19 06:30:51 +00:00
Dan Gohman
1705968102
Add a new function, ReplaceAllUsesOfValuesWith, which handles bulk
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replacement of multiple values. This is slightly more efficient
than doing multiple ReplaceAllUsesOfValueWith calls, and theoretically
could be optimized even further. However, an important property of this
new function is that it handles the case where the source value set and
destination value set overlap. This makes it feasible for isel to use
SelectNodeTo in many very common cases, which is advantageous because
SelectNodeTo avoids a temporary node and it doesn't require CSEMap
updates for users of values that don't change position.
Revamp MorphNodeTo, which is what does all the work of SelectNodeTo, to
handle operand lists more efficiently, and to correctly handle a number
of corner cases to which its new wider use exposes it.
This commit also includes a change to the encoding of post-isel opcodes
in SDNodes; now instead of being sandwiched between the target-independent
pre-isel opcodes and the target-dependent pre-isel opcodes, post-isel
opcodes are now represented as negative values. This makes it possible
to test if an opcode is pre-isel or post-isel without having to know
the size of the current target's post-isel instruction set.
These changes speed up llc overall by 3% and reduce memory usage by 10%
on the InstructionCombining.cpp testcase with -fast and -regalloc=local.
llvm-svn: 53728
2008-07-17 19:10:17 +00:00
Nate Begeman
3851e29e20
Remove unnecessary readme entry
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llvm-svn: 53722
2008-07-17 17:21:14 +00:00
Nate Begeman
3a2147aa97
Fix a typo in last commit
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llvm-svn: 53720
2008-07-17 17:04:58 +00:00
Nate Begeman
55b7becb29
SSE codegen for vsetcc nodes
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llvm-svn: 53719
2008-07-17 16:51:19 +00:00
Mon P Wang
1e2c6bfa41
When lowering certain atomics, we need to copy the memoperand from the old
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atomic operation to the new one.
llvm-svn: 53714
2008-07-17 04:54:06 +00:00
Devang Patel
78e8a09f39
Mark function used by asm block as used, otherwise optimizer may not see the use and may delete the function.
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llvm-svn: 53692
2008-07-16 17:54:34 +00:00
Dan Gohman
f169f81036
Fix the result type of X86's truncate to i8.
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llvm-svn: 53688
2008-07-16 16:20:48 +00:00
Evan Cheng
cf06fe476f
x86-64 PIC JIT fixes: do not generate the extra load for external GV's.
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llvm-svn: 53661
2008-07-16 01:34:02 +00:00
Evan Cheng
68bd1546ab
X86-64 PIC jump table values are different from x86-32 cases, they are dest - table base.
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llvm-svn: 53660
2008-07-16 01:33:08 +00:00
Dan Gohman
9a542a4d5f
Add a utility function to MachineInstr for testing whether an instruction
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has exactly one MachineMemOperand, and change some X86 lowering code to
make use of it.
llvm-svn: 53498
2008-07-12 00:10:52 +00:00
Dan Gohman
02c7c6cb33
Include a frame index in the "fixed stack" pseudo source value
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instead of using the frame index for the SVOffset, which was
inconsistent.
llvm-svn: 53486
2008-07-11 22:44:52 +00:00
Bill Wendling
5774466a33
The frame address on an x86-64 box needs to be offset by -8, not -4.
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llvm-svn: 53450
2008-07-11 07:18:52 +00:00
Evan Cheng
71b7398463
Fix for PR2472. Use movss to set lower 32-bits of a zero XMM vector.
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llvm-svn: 53386
2008-07-10 01:08:23 +00:00
Anton Korobeynikov
6e816424b0
Remove a FIXME: we really need to use const_data section on darwin for
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constant pool, if relocation model is not static. This directly maps to
the way how GCC works.
llvm-svn: 53370
2008-07-09 21:54:26 +00:00
Anton Korobeynikov
443864544e
Add FIXME for future checking.
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llvm-svn: 53368
2008-07-09 21:38:28 +00:00
Dale Johannesen
605d38657a
Emit debug info for data-only files. This version
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is X86 ATT only.
llvm-svn: 53355
2008-07-09 20:55:35 +00:00
Anton Korobeynikov
bcfb41ca7d
Add missed section
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llvm-svn: 53354
2008-07-09 20:47:55 +00:00
Anton Korobeynikov
5c0d2bd46e
Distinguish .const and .const_data on Darwin, when needed. This is somehow crazy :)
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llvm-svn: 53350
2008-07-09 20:01:42 +00:00
Anton Korobeynikov
92e4ac1599
Weak stuff always goes to coalesced sections on Darwin
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llvm-svn: 53340
2008-07-09 19:06:02 +00:00
Dan Gohman
0acb6be89c
Remove #include <iostream>.
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llvm-svn: 53333
2008-07-09 18:08:48 +00:00
Anton Korobeynikov
ee09e66a01
Add FIXME needed to be resolved later
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llvm-svn: 53324
2008-07-09 13:30:02 +00:00
Anton Korobeynikov
d5cf47d853
Typo
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llvm-svn: 53322
2008-07-09 13:29:27 +00:00
Anton Korobeynikov
d62b4f5b37
Revert accidentially added stuff
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llvm-svn: 53321
2008-07-09 13:29:08 +00:00
Anton Korobeynikov
daee281590
First sketch of special section objects
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llvm-svn: 53320
2008-07-09 13:28:49 +00:00
Anton Korobeynikov
03dc8bf4d6
Honour text sections
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llvm-svn: 53319
2008-07-09 13:28:19 +00:00
Anton Korobeynikov
577c45dd74
Use isWeakForLinker() hook
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llvm-svn: 53318
2008-07-09 13:27:59 +00:00
Anton Korobeynikov
fe047d241c
Switch to new section name handling facility
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llvm-svn: 53316
2008-07-09 13:27:16 +00:00