Commit Graph

3517 Commits

Author SHA1 Message Date
Evan Cheng 7823a411d5 Fix PR2620: Fix X86cmppd selection code so it expects operands to be v2f64.
llvm-svn: 54376
2008-08-05 22:19:15 +00:00
Dan Gohman 8ef79ebd5f Add an assert to catch invalid VECTOR_SHUFFLE mask indices.
llvm-svn: 54329
2008-08-04 23:09:15 +00:00
Andrew Lenharth 77e3e86e70 Add atomic sub for other sizes
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
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.
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,
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.
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
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
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
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.
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.
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.
llvm-svn: 53933
2008-07-22 21:13:36 +00:00
Evan Cheng 0384670141 Fix PR2574: implement v2f32 scalar_to_vector.
llvm-svn: 53927
2008-07-22 18:39:19 +00:00
Anton Korobeynikov 2d29ee06cd Fix encoding of atomic compare and swap for i64
llvm-svn: 53911
2008-07-22 16:22:48 +00:00
Evan Cheng fa374ca223 Eliminate a compilation warning.
llvm-svn: 53873
2008-07-21 20:02:45 +00:00
Dan Gohman 581cc87f57 Add titles to the various SelectionDAG viewGraph calls
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
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.
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
into v4i16 vectors.

llvm-svn: 53807
2008-07-20 02:32:23 +00:00
Anton Korobeynikov aaee859a18 Fix a FIXME :)
llvm-svn: 53789
2008-07-19 13:15:46 +00:00
Anton Korobeynikov 4e05489745 Use generic ELFTargetAsmInfo and DarwinTargetAsmInfo for X86 code
llvm-svn: 53788
2008-07-19 13:15:21 +00:00
Anton Korobeynikov b7a49925a1 Use aligned stack spills, where possible. This fixes PR2549.
llvm-svn: 53784
2008-07-19 06:30:51 +00:00
Dan Gohman 1705968102 Add a new function, ReplaceAllUsesOfValuesWith, which handles bulk
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
llvm-svn: 53722
2008-07-17 17:21:14 +00:00
Nate Begeman 3a2147aa97 Fix a typo in last commit
llvm-svn: 53720
2008-07-17 17:04:58 +00:00
Nate Begeman 55b7becb29 SSE codegen for vsetcc nodes
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
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.
llvm-svn: 53692
2008-07-16 17:54:34 +00:00
Dan Gohman f169f81036 Fix the result type of X86's truncate to i8.
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.
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.
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
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
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.
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.
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
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.
llvm-svn: 53368
2008-07-09 21:38:28 +00:00
Dale Johannesen 605d38657a Emit debug info for data-only files. This version
is X86 ATT only.

llvm-svn: 53355
2008-07-09 20:55:35 +00:00
Anton Korobeynikov bcfb41ca7d Add missed section
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 :)
llvm-svn: 53350
2008-07-09 20:01:42 +00:00
Anton Korobeynikov 92e4ac1599 Weak stuff always goes to coalesced sections on Darwin
llvm-svn: 53340
2008-07-09 19:06:02 +00:00
Dan Gohman 0acb6be89c Remove #include <iostream>.
llvm-svn: 53333
2008-07-09 18:08:48 +00:00
Anton Korobeynikov ee09e66a01 Add FIXME needed to be resolved later
llvm-svn: 53324
2008-07-09 13:30:02 +00:00
Anton Korobeynikov d5cf47d853 Typo
llvm-svn: 53322
2008-07-09 13:29:27 +00:00
Anton Korobeynikov d62b4f5b37 Revert accidentially added stuff
llvm-svn: 53321
2008-07-09 13:29:08 +00:00
Anton Korobeynikov daee281590 First sketch of special section objects
llvm-svn: 53320
2008-07-09 13:28:49 +00:00
Anton Korobeynikov 03dc8bf4d6 Honour text sections
llvm-svn: 53319
2008-07-09 13:28:19 +00:00
Anton Korobeynikov 577c45dd74 Use isWeakForLinker() hook
llvm-svn: 53318
2008-07-09 13:27:59 +00:00
Anton Korobeynikov fe047d241c Switch to new section name handling facility
llvm-svn: 53316
2008-07-09 13:27:16 +00:00