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16 Commits

Author SHA1 Message Date
Bruno Cardoso Lopes b878caa5e2 Add support for 256-bit versions of VPERMIL instruction. This is a new 
instruction introduced in AVX, which can operate on 128 and 256-bit vectors.
It considers a 256-bit vector as two independent 128-bit lanes. It can permute
any 32 or 64 elements inside a lane, and restricts the second lane to
have the same permutation of the first one. With the improved splat support
introduced early today, adding codegen for this instruction enable more
efficient 256-bit code:

Instead of:
  vextractf128  $0, %ymm0, %xmm0
  punpcklbw %xmm0, %xmm0
  punpckhbw %xmm0, %xmm0
  vinsertf128 $0, %xmm0, %ymm0, %ymm1
  vinsertf128 $1, %xmm0, %ymm1, %ymm0
  vextractf128  $1, %ymm0, %xmm1
  shufps  $1, %xmm1, %xmm1
  movss %xmm1, 28(%rsp)
  movss %xmm1, 24(%rsp)
  movss %xmm1, 20(%rsp)
  movss %xmm1, 16(%rsp)
  vextractf128  $0, %ymm0, %xmm0
  shufps  $1, %xmm0, %xmm0
  movss %xmm0, 12(%rsp)
  movss %xmm0, 8(%rsp)
  movss %xmm0, 4(%rsp)
  movss %xmm0, (%rsp)
  vmovaps (%rsp), %ymm0
We get:
  vextractf128  $0, %ymm0, %xmm0
  punpcklbw %xmm0, %xmm0
  punpckhbw %xmm0, %xmm0
  vinsertf128 $0, %xmm0, %ymm0, %ymm1
  vinsertf128 $1, %xmm0, %ymm1, %ymm0
  vpermilps $85, %ymm0, %ymm0

llvm-svn: 135662
 2011-07-21 01:55:47 +00:00
Evan Cheng 3ddfbd325d Rename files for consistency. 
llvm-svn: 134546
 2011-07-06 22:01:53 +00:00
Evan Cheng ab37af9af3 createMCInstPrinter doesn't need TargetMachine anymore. 
llvm-svn: 134525
 2011-07-06 19:45:42 +00:00
Evan Cheng 4d806e2830 Remove the AsmWriterEmitter (unused) feature that rely on TargetSubtargetInfo. 
llvm-svn: 134457
 2011-07-06 02:02:33 +00:00
Evan Cheng 1e210d08d8 Merge XXXGenRegisterNames.inc into XXXGenRegisterInfo.inc 
llvm-svn: 134024
 2011-06-28 20:07:07 +00:00
Evan Cheng d9997acd14 Merge XXXGenRegisterDesc.inc XXXGenRegisterNames.inc XXXGenRegisterInfo.h.inc 
into XXXGenRegisterInfo.inc.

llvm-svn: 133922
 2011-06-27 18:32:37 +00:00
Rafael Espindola d6860522b2 Don't hardcode the %reg format in the streamer. 
llvm-svn: 132451
 2011-06-02 02:34:55 +00:00
Rafael Espindola 08600bcf65 Use the dwarf->llvm mapping to print register names in the cfi 
directives.

Fixes PR9826.

llvm-svn: 132317
 2011-05-30 20:20:15 +00:00
Eric Christopher 2e3fbaab39 Invert the meaning of printAliasInstr's return value. It now returns 
true on success and false on failure. Update callers.

llvm-svn: 129722
 2011-04-18 21:28:11 +00:00
Bill Wendling 7e07d6fb69 Have the X86 back-end emit the alias instead of what's being aliased. In most 
cases, it's much nicer and more informative reading the alias.

llvm-svn: 129497
 2011-04-14 01:11:51 +00:00
Bill Wendling bc3f79044a Replace the old algorithm that emitted the "print the alias for an instruction" 
with the newer, cleaner model. It uses the IAPrinter class to hold the
information that is needed to match an instruction with its alias. This also
takes into account the available features of the platform.

There is one bit of ugliness. The way the logic determines if a pattern is
unique is O(N**2), which is gross. But in reality, the number of items it's
checking against isn't large. So while it's N**2, it shouldn't be a massive time
sink.

llvm-svn: 129110
 2011-04-07 21:20:06 +00:00
Bill Wendling 00f0cddfd4 We need to pass the TargetMachine object to the InstPrinter if we are printing 
the alias of an InstAlias instead of the thing being aliased. Because we need to
know the features that are valid for an InstAlias.

This is part of a work-in-progress.

llvm-svn: 127986
 2011-03-21 04:13:46 +00:00
David Greene 20a1cbefad [AVX] Add decode support for VUNPCKLPS/D instructions, both 128-bit 
and 256-bit forms.  Because the number of elements in a vector
      does not determine the vector type (4 elements could be v4f32 or
      v4f64), pass the full type of the vector to decode routines.

llvm-svn: 126664
 2011-02-28 19:06:56 +00:00
David Greene 3a2b508e8f [AVX] Recorganize X86ShuffleDecode into its own library 
(LLVMX86Utils.a) to break cyclic library dependencies between
LLVMX86CodeGen.a and LLVMX86AsmParser.a.  Previously this code was in
a header file and marked static but AVX requires some additional
functionality here that won't be used by all clients.  Since including
unused static functions causes a gcc compiler warning, keeping it as a
header would break builds that use -Werror.  Putting this in its own
library solves both problems at once.

llvm-svn: 125765
 2011-02-17 19:18:59 +00:00
Douglas Gregor 69e6206b19 Add a missing <cctype> include, from Joerg Sonnenberger! 
llvm-svn: 123670
 2011-01-17 19:17:01 +00:00
Jim Grosbach 0e854f3d43 Rename the AsmPrinter directory to InstPrinter for those targets that have 
been MC-ized for assembly printing. MSP430 is mostly so, but still has the
asm printer and lowering code in the printer subdir for the moment.

llvm-svn: 115360
 2010-10-01 22:39:28 +00:00