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9766 Commits

Author SHA1 Message Date
Anton Korobeynikov
dbc41d2422 Fix comment 
llvm-svn: 68381
 2009-04-03 10:41:00 +00:00
Anton Korobeynikov
b2c736f296 Move IA64 asmprinter to separate library 
llvm-svn: 68380
 2009-04-03 10:38:51 +00:00
Mon P Wang
f829fb5cab Added a x86 dag combine to increase the chances to use a 
movq for v2i64 on x86-32.

llvm-svn: 68368
 2009-04-03 02:43:30 +00:00
Sanjiv Gupta
7ec088a3de Fixed build warnings. 
llvm-svn: 68333
 2009-04-02 18:33:12 +00:00
Sanjiv Gupta
01fb90085c To convert the StopPoint insn into an assembler directive by ISel, we need to have access to the line number field. So we convert that info as an operand by custom handling DBG_STOPPOINT in legalize. 
llvm-svn: 68329
 2009-04-02 18:03:10 +00:00
Sanjiv Gupta
1555a0a503 Params are not being generated as static globals now. The caller passes them onto the callee's stack directly and the callee loads the argvals from its own stack. Clang generated frameindexes validatd by recalculating the stack as if all frameindexes represent 1-byte slots. 
llvm-svn: 68327
 2009-04-02 17:42:00 +00:00
Chris Lattner
f1719bf7b5 silence warning in release-asserts build. 
llvm-svn: 68253
 2009-04-01 22:14:45 +00:00
Dan Gohman
770f4158e5 Use CHAR_BIT instead of hard-coding 8 in several places where it 
is appropriate. This helps visually differentiate host-oriented
calculations from target-oriented calculations.

llvm-svn: 68227
 2009-04-01 18:45:54 +00:00
Dan Gohman
818a08f22e Use LLVM type names instead of C type names in comments, to be 
less ambiguous and less C-specific.

llvm-svn: 68219
 2009-04-01 18:10:16 +00:00
Bob Wilson
5b42ebe6a9 Fix PR3862: Recognize some ARM-specific constraints for immediates in inline 
assembly.

llvm-svn: 68218
 2009-04-01 17:58:54 +00:00
Evan Cheng
44fdb5d570 i128 shift libcalls are not available on x86. 
llvm-svn: 68133
 2009-03-31 19:38:51 +00:00
Dan Gohman
86e4d0130c Reapply 68073, with fixes. EH Landing-pad basic blocks are not 
entered via fall-through. Don't miss fallthroughs from blocks
terminated by conditional branches. Also, move
isOnlyReachableByFallthrough out of line.

llvm-svn: 68129
 2009-03-31 18:39:13 +00:00
Rafael Espindola
3d866ac20c remove unused arguments. 
llvm-svn: 68109
 2009-03-31 16:16:57 +00:00
Bill Wendling
28fad6fcc1 Really temporarily revert r68073. 
llvm-svn: 68100
 2009-03-31 08:42:40 +00:00
Bill Wendling
1c40c8c242 Oy! When reverting r68073, I added in experimental code. Sorry... 
llvm-svn: 68099
 2009-03-31 08:41:31 +00:00
Bill Wendling
4706abded2 Revert r68073. It's causing a failure in the Apple-style builds. 
llvm-svn: 68092
 2009-03-31 08:26:26 +00:00
Evan Cheng
5c02e62620 X86 address mode isel tweak. If the base of the address is also used by a CopyToReg (i.e. it's likely live-out), do not fold the sub-expressions into the addressing mode to avoid computing the address twice. The CopyToReg use will be isel'ed to a LEA, re-use it for address instead. 
This is not yet enabled.

llvm-svn: 68082
 2009-03-31 01:13:53 +00:00
Dan Gohman
29694088d3 Except in asm-verbose mode, avoid printing labels for blocks that are 
only reachable via fall-through edges. This dramatically reduces the
number of labels printed, and thus also the number of labels the
assembler must parse and remember.

llvm-svn: 68073
 2009-03-30 22:55:17 +00:00
Evan Cheng
3e30bcbd69 When optimzing a mul by immediate into two, the resulting mul's should get a x86 specific node to avoid dag combiner from hacking on them further. 
llvm-svn: 68066
 2009-03-30 21:36:47 +00:00
Bob Wilson
d59a64d436 Fix comment to match function name. 
llvm-svn: 68050
 2009-03-30 18:49:37 +00:00
Anton Korobeynikov
880f98920c Fix thinko: put stuff with both global and local relocations into data.rel{.ro}, not .local 
llvm-svn: 68036
 2009-03-30 17:37:43 +00:00
Anton Korobeynikov
0404baca28 Do not propagate ELF-specific stuff (data.rel) into other targets. This simplifies code and also ensures correctness. 
llvm-svn: 68032
 2009-03-30 15:27:43 +00:00
Anton Korobeynikov
2ea565a37b Add data.rel stuff 
llvm-svn: 68031
 2009-03-30 15:27:03 +00:00
Anton Korobeynikov
424bf7a0b5 IA64 is as weird as Alpha wrt r/o relocs :) 
llvm-svn: 68007
 2009-03-29 17:14:35 +00:00
Anton Korobeynikov
55097e65d6 Alpha always requires global relocations to be r/w regardless of PIC. 
llvm-svn: 68006
 2009-03-29 17:14:14 +00:00
Anton Korobeynikov
ec131d94ff Honour relocation behaviour stuff for ro objects 
llvm-svn: 68005
 2009-03-29 17:13:49 +00:00
Chris Lattner
9b435e06e4 add a note 
llvm-svn: 67953
 2009-03-28 19:26:55 +00:00
Rafael Espindola
34f59009d1 Use array_lengthof 
llvm-svn: 67950
 2009-03-28 19:02:18 +00:00
Rafael Espindola
37522e768a Have only one definition of X86AddrNumOperands. 
llvm-svn: 67949
 2009-03-28 18:55:31 +00:00
Rafael Espindola
884992a7e9 Make code a bit less brittle by no hardcoding the number 
of operands in an address in so many places.

llvm-svn: 67945
 2009-03-28 17:03:24 +00:00
Evan Cheng
a15fdaa292 Optimize some 64-bit multiplication by constants into two lea's or one lea + shl since imulq is slow (latency 5). e.g. 
x * 40
=>
shlq    $3, %rdi
leaq    (%rdi,%rdi,4), %rax

This has the added benefit of allowing more multiply to be folded into addressing mode. e.g.
a * 24 + b
=>
leaq    (%rdi,%rdi,2), %rax
leaq    (%rsi,%rax,8), %rax

llvm-svn: 67917
 2009-03-28 05:57:29 +00:00
Jim Grosbach
93b0fc3ba8 remove trailing whitespace 
llvm-svn: 67874
 2009-03-27 23:06:27 +00:00
Rafael Espindola
83ee99d7b0 Avoid hardcoding that X86 addresses have 4 operands. 
llvm-svn: 67848
 2009-03-27 15:57:50 +00:00
Rafael Espindola
7c113e5354 Use less hard coded constants to make the code less brittle. 
llvm-svn: 67846
 2009-03-27 15:45:05 +00:00
Rafael Espindola
38604d9598 I am trying to add a segment to the X86 addresses matching to 
improve TLS support (see http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090309/075220.html), but that code is VERY brittle.

This patch just makes it a bit more resistant.

llvm-svn: 67843
 2009-03-27 15:26:30 +00:00
Evan Cheng
ab6e38c88d -no-implicit-float means explicit fp operations are legal. 
llvm-svn: 67784
 2009-03-26 23:06:32 +00:00
Evan Cheng
1343fa32dc tADDhirr is a thumb instruction. Do not allow this code to be reached in non-thumb mode. 
llvm-svn: 67765
 2009-03-26 19:09:01 +00:00
Bill Wendling
f4247ff478 Pull transform from target-dependent code into target-independent code. 
llvm-svn: 67742
 2009-03-26 06:14:09 +00:00
Chris Lattner
cefed33f04 fix warning in -asserts mode. 
llvm-svn: 67739
 2009-03-26 05:29:34 +00:00
Chris Lattner
fd5356e4a9 fix some warnings in release-asserts mode. 
llvm-svn: 67738
 2009-03-26 05:28:26 +00:00
Chris Lattner
4f992250bf fix an apparently real bug exposed by a warning in -asserts mode. 
llvm-svn: 67737
 2009-03-26 05:28:14 +00:00
Chris Lattner
fc26089eb4 fix warning in -asserts build. 
llvm-svn: 67736
 2009-03-26 05:25:59 +00:00
Bill Wendling
f79eccc675 Match this pattern so that we can generate simpler code: 
%a = ...
  %b = and i32 %a, 2
  %c = srl i32 %b, 1
  %d = br i32 %c, 

into

  %a = ...
  %b = and %a, 2
  %c = X86ISD::CMP %b, 0
  %d = X86ISD::BRCOND %c ...

This applies only when the AND constant value has one bit set and the SRL
constant is equal to the log2 of the AND constant. The back-end is smart enough
to convert the result into a TEST/JMP sequence.

llvm-svn: 67728
 2009-03-26 01:47:50 +00:00
Bill Wendling
40ac545f38 Doxygen-ify comments. 
llvm-svn: 67727
 2009-03-26 01:46:56 +00:00
Gabor Greif
9ac00d10ea do not rely on callee being operand 0 
llvm-svn: 67681
 2009-03-25 06:32:59 +00:00
Evan Cheng
3a7489a4cc CodeGen still defaults to non-verbose asm, but llc now overrides it and default to verbose. 
llvm-svn: 67668
 2009-03-25 01:47:28 +00:00
Evan Cheng
6ff8cea903 Don't print global names twice with -asm-verbose. 
llvm-svn: 67667
 2009-03-25 01:08:42 +00:00
Dan Gohman
7a9e8cbf79 I was convinced that it's ok to allow a second i8 return value 
to be returned in DL. LLVM's multiple-return-value support is
not ABI-conforming; front-ends that wish to have code emitted
that conforms to an ABI are currently expected to make
arrangements for this on their own rather than assuming that
multiple-return-values will automatically do the right thing.
This commit doesn't fundamentally change this situation.

llvm-svn: 67588
 2009-03-24 01:04:34 +00:00
Evan Cheng
b3196f1298 Do not emit comments unless -asm-verbose. 
llvm-svn: 67580
 2009-03-24 00:17:40 +00:00
Dale Johannesen
34123aba43 Fix internal representation of fp80 to be the 
same as a normal i80 {low64, high16} rather
than its own {high64, low16}.  A depressing number
of places know about this; I think I got them all.
Bitcode readers and writers convert back to the old
form to avoid breaking compatibility.

llvm-svn: 67562
 2009-03-23 21:16:53 +00:00