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2398 Commits

Author SHA1 Message Date
Evan Cheng 61f39d186c Added MRegisterInfo hook to re-materialize an instruction. 
llvm-svn: 35205
 2007-03-20 08:09:38 +00:00
Chris Lattner 3e1d917e80 Two changes: 
1) codegen a shift of a register as a shift, not an LEA.
2) teach the RA to convert a shift to an LEA instruction if it wants something
   in three-address form.

This gives us asm diffs like:

-       leal (,%eax,4), %eax
+       shll $2, %eax

which is faster on some processors and smaller on all of them.

and, more interestingly:

-       movl 24(%esi), %eax
-       leal (,%eax,4), %edi
+       movl 24(%esi), %edi
+       shll $2, %edi

Without #2, #1 was a significant pessimization in some cases.

This implements CodeGen/X86/shift-codegen.ll

llvm-svn: 35204
 2007-03-20 06:08:29 +00:00
Chris Lattner f01f87bc63 fix a warning 
llvm-svn: 35152
 2007-03-19 00:39:32 +00:00
Devang Patel b38c2ec89c Support 'I' inline asm constraint. 
llvm-svn: 35129
 2007-03-17 00:13:28 +00:00
Bill Wendling 144b8bbf17 And now support for MMX logical operations. 
llvm-svn: 35125
 2007-03-16 09:44:46 +00:00
Bill Wendling e31034125c Multiplication support for MMX. 
llvm-svn: 35118
 2007-03-15 21:24:36 +00:00
Evan Cheng a1779b9739 Under X86-64 large code model, do not emit 32-bit pc relative calls. 
llvm-svn: 35108
 2007-03-14 22:11:11 +00:00
Evan Cheng 71face25ef Notes about codegen issues. 
llvm-svn: 35107
 2007-03-14 21:03:53 +00:00
Evan Cheng e278f30a52 Clean up. 
llvm-svn: 35105
 2007-03-14 20:20:19 +00:00
Evan Cheng eb76f7c6fd Oops. 
llvm-svn: 35104
 2007-03-14 19:44:58 +00:00
Evan Cheng dda4c32db3 X86-64 JIT is in large code model. Need stubs for direct calls. 
llvm-svn: 35097
 2007-03-14 10:51:55 +00:00
Evan Cheng 386dfc9251 x86-64 JIT stub codegen. 
llvm-svn: 35096
 2007-03-14 10:48:08 +00:00
Evan Cheng e1a95206e3 Preliminary support for X86-64 JIT stub codegen. 
llvm-svn: 35095
 2007-03-14 10:44:30 +00:00
Evan Cheng 3ab7ea7965 More flexible TargetLowering LSR hooks for testing whether an immediate is 
a legal target address immediate or scale.

llvm-svn: 35073
 2007-03-12 23:28:50 +00:00
Evan Cheng 57f261b13a Stupid bug: SSE2 supports v2i64 add / sub. 
llvm-svn: 35070
 2007-03-12 22:58:52 +00:00
Bill Wendling e9b81f5366 Adding more arithmetic operators to MMX. This is an almost exact copy of 
the addition. Please let me know if you have suggestions.

llvm-svn: 35055
 2007-03-10 09:57:05 +00:00
Bill Wendling 6092ce25cf Added "padd*" support for MMX. Added MMX move stuff to X86InstrInfo so that 
moves, loads, etc. are recognized.

llvm-svn: 35031
 2007-03-08 22:09:11 +00:00
Evan Cheng ddf082082c Putting more constants which do not contain relocations into .literal{4|8|16} 
llvm-svn: 35026
 2007-03-08 08:31:54 +00:00
Evan Cheng 13a1d96963 Put constant data to .const, .const_data, .literal{4|8|16} sections. 
llvm-svn: 35016
 2007-03-08 01:07:07 +00:00
Bill Wendling 6d8211c0ac Remove useless pattern fragments. 
llvm-svn: 35009
 2007-03-07 18:23:09 +00:00
Anton Korobeynikov ed4b303c10 Refactoring of formal parameter flags. Enable properly use of 
zext/sext/aext stuff.

llvm-svn: 35008
 2007-03-07 16:25:09 +00:00
Bill Wendling 97905b4027 Properly support v8i8 and v4i16 types. It now converts them to v2i32 for 
load and stores.

llvm-svn: 35002
 2007-03-07 05:43:18 +00:00
Anton Korobeynikov 942fda027f Fix DWARF debugging information on x86/Linux and (hopefully) 
Mingw32/Cygwin targets. This fixes PR978

llvm-svn: 35000
 2007-03-07 02:47:57 +00:00
Bill Wendling bbd25984b7 Add LOAD/STORE support for MMX. 
llvm-svn: 34978
 2007-03-06 18:53:42 +00:00
Anton Korobeynikov e7ec3bc7bc Use new SDIselParamAttr enumeration. This removes "magick" constants 
from formal attributes' flags processing.

llvm-svn: 34963
 2007-03-06 08:12:33 +00:00
Bill Wendling b1c86b49ea Add the emms intrinsic for MMX support. 
llvm-svn: 34938
 2007-03-05 23:09:45 +00:00
Chris Lattner d647f92a14 add missing braces 
llvm-svn: 34905
 2007-03-04 06:13:52 +00:00
Evan Cheng deaea25eb9 X86-64 VACOPY needs custom expansion. va_list is a struct { i32, i32, i8*, i8* }. 
llvm-svn: 34857
 2007-03-02 23:16:35 +00:00
Anton Korobeynikov 57af2a4f3b Simplify things 
llvm-svn: 34849
 2007-03-02 21:50:27 +00:00
Chris Lattner 9c7e5e365d argument lowering should copy from the vreg shadows of live-in arguments 
passed in registers, not directly from the pregs themselves.

llvm-svn: 34838
 2007-03-02 05:12:29 +00:00
Chris Lattner fc2f52128a add a note 
llvm-svn: 34837
 2007-03-02 05:04:52 +00:00
Anton Korobeynikov af8be4458f Ensure that fastcall'ed function is correctly mangled & stack is 
properly aligned

llvm-svn: 34788
 2007-03-01 16:29:22 +00:00
Chris Lattner 7373f3a351 remove dead option 
llvm-svn: 34754
 2007-02-28 18:39:53 +00:00
Chris Lattner eb09e28ccc bugfix: fastcall does not require the first two params to be marked 'inreg', 
they always get registers.

llvm-svn: 34748
 2007-02-28 18:35:11 +00:00
Chris Lattner 152bfa103e use high-level functions in CCState 
llvm-svn: 34739
 2007-02-28 07:09:55 +00:00
Chris Lattner 227b6c5d19 make use of helper functions in CCState for analyzing formals and calls. 
llvm-svn: 34737
 2007-02-28 07:00:42 +00:00
Chris Lattner d439e86078 switch LowerFastCCCallTo over to using the new fastcall description. 
llvm-svn: 34734
 2007-02-28 06:26:33 +00:00
Chris Lattner 66e1d1dd7e switch LowerFastCCArguments over to using the autogenerated Fastcall description. 
llvm-svn: 34733
 2007-02-28 06:21:19 +00:00
Chris Lattner 0bc74fd6cc add new CC_X86_32_FastCall calling conv, which describes fastcall on win32. 
Factor out a CC_X86_32_Common convention, which is the part shared between
ccc, stdcall and fastcall

llvm-svn: 34732
 2007-02-28 06:20:01 +00:00
Chris Lattner 3066beccb5 rearrange code 
llvm-svn: 34731
 2007-02-28 06:10:12 +00:00
Chris Lattner 3ed3be3b4a remove fastcc (not fastcall) support 
llvm-svn: 34730
 2007-02-28 06:05:16 +00:00
Chris Lattner b9db225049 switch LowerCCCArguments over to using autogenerated CC. 
llvm-svn: 34729
 2007-02-28 05:46:49 +00:00
Chris Lattner 5958b176f3 simplify sret handling 
llvm-svn: 34728
 2007-02-28 05:39:26 +00:00
Chris Lattner be7995953a switch LowerCCCCallTo over to using an autogenerated callingconv 
llvm-svn: 34727
 2007-02-28 05:31:48 +00:00
Chris Lattner 0c0a7b288e rename stuff 
llvm-svn: 34726
 2007-02-28 05:30:29 +00:00
Chris Lattner ba3d273122 switch return value passing and the x86-64 calling convention information 
over to being autogenerated from the X86CallingConv.td file.

llvm-svn: 34722
 2007-02-28 04:55:35 +00:00
Chris Lattner 659ca56383 make subtarget references work. 
llvm-svn: 34721
 2007-02-28 04:51:41 +00:00
Evan Cheng 95ae95a6a6 PEI now passes a RegScavenger ptr to eliminateFrameIndex. 
llvm-svn: 34707
 2007-02-28 00:21:17 +00:00
Chris Lattner c5e2a3a80e reenable generation of CC info 
llvm-svn: 34699
 2007-02-27 22:12:19 +00:00
Evan Cheng 6f0969ecb9 Back out previous commit temporarily. 
llvm-svn: 34694
 2007-02-27 21:47:22 +00:00