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9174 Commits

Author SHA1 Message Date
Chris Lattner
fdb9fda4af make target independent. 
llvm-svn: 95655
 2010-02-09 06:36:30 +00:00
Chris Lattner
28b79c686d merge a target-specific add test into x86 directory. 
llvm-svn: 95654
 2010-02-09 06:35:50 +00:00
Chris Lattner
34c420d11b merge another test in, drop the trivially constant folded cases. 
llvm-svn: 95653
 2010-02-09 06:33:27 +00:00
Chris Lattner
ddb2e5a05c consolidate and filecheckize two tests. 
llvm-svn: 95652
 2010-02-09 06:24:00 +00:00
Chris Lattner
e669789912 merge two tests, make target independent. 
llvm-svn: 95651
 2010-02-09 06:19:20 +00:00
Chris Lattner
26b712379f fix PR6193, only considering sign extensions *from i1* for this 
xform.

llvm-svn: 95642
 2010-02-09 01:12:41 +00:00
Chris Lattner
682f64dc8d Implement x86 asm parsing support for %st and %st(4) 
llvm-svn: 95634
 2010-02-09 00:49:22 +00:00
Eric Christopher
428b385575 Add a new pass to do llvm.objsize lowering using SCEV. 
Initial skeleton and SCEVUnknown lowering implemented,
the rest should come relatively quickly.  Move testcase
to new directory.

Move pass to right before SimplifyLibCalls - which is
moved down a bit so we can take advantage of a few opts.

llvm-svn: 95628
 2010-02-09 00:35:38 +00:00
Chris Lattner
20be5fb012 convert to filecheck. 
llvm-svn: 95608
 2010-02-08 23:47:34 +00:00
Devang Patel
8f947ff5d6 test case for r95604. 
llvm-svn: 95605
 2010-02-08 23:27:46 +00:00
Chris Lattner
6162c89bfe add an x86 implementation of MCTargetExpr for 
representing @GOT and friends.  Use it for
personality references as a first use.

llvm-svn: 95588
 2010-02-08 22:09:08 +00:00
Dan Gohman
56b9ea088b When CodeGen'ing unoptimized code, there may be unfolded constant expressions 
in global initializers. Instead of aborting, attempt to fold them on the
spot. If folding succeeds, emit the folded expression instead.

This fixes PR6255.

llvm-svn: 95583
 2010-02-08 22:02:38 +00:00
Dan Gohman
f113e5466c In guaranteed tailcall mode, don't decline the tailcall optimization 
for blocks ending in "unreachable".

llvm-svn: 95565
 2010-02-08 20:34:14 +00:00
Evan Cheng
5541068ad3 Run codegen dce pass for all targets at all optimization levels. Previously it's 
only run for x86 with fastisel. I've found it being very effective in
eliminating some obvious dead code as result of formal parameter lowering
especially when tail call optimization eliminated the need for some of the loads
from fixed frame objects. It also shrinks a number of the tests. A couple of
tests no longer make sense and are now eliminated.

llvm-svn: 95493
 2010-02-06 09:07:11 +00:00
Evan Cheng
c3cfda4e7e Remove a large test case that (soon will) no longer make sense. 
llvm-svn: 95492
 2010-02-06 09:00:30 +00:00
Rafael Espindola
b0bb1ddfe3 Fix alignment on ppc linux. This fixes the build of crtend.o 
llvm-svn: 95477
 2010-02-06 03:32:21 +00:00
Evan Cheng
de1a4726e6 Do not emit callseq instructions around sibcalls. This eliminated some unnecessary stack adjustments. 
llvm-svn: 95475
 2010-02-06 03:28:46 +00:00
Victor Hernandez
e65222a748 Function-local metadata whose operands had been optimized to no longer refer to function-local IR were not getting written by BitcodeWriter; solution is for these metadata to be enumerated just like global metadata. 
llvm-svn: 95467
 2010-02-06 01:21:09 +00:00
Bob Wilson
60fb5a2446 Add a test for my change to disable reassociation for i1 types. 
llvm-svn: 95465
 2010-02-06 01:16:25 +00:00
Bob Wilson
1a324958d6 Handle AddrMode6 (for NEON load/stores) in Thumb2's rewriteT2FrameIndex. 
Radar 7614112.

llvm-svn: 95456
 2010-02-06 00:24:38 +00:00
Jakob Stoklund Olesen
7b4c60adae Don't unroll loops containing function calls. 
llvm-svn: 95454
 2010-02-05 23:21:31 +00:00
Chris Lattner
e1b8c529a4 fix incorrect encoding of SBB8mi that Kevin noticed. 
llvm-svn: 95448
 2010-02-05 22:56:11 +00:00
Chris Lattner
9d4e878b6a fix a case where we'd mis-encode fisttp because of an incorrect (and 
redundant with a correct one) pattern that was added for the disassembler.

llvm-svn: 95446
 2010-02-05 22:49:06 +00:00
Chris Lattner
bec530a499 remove fixme 
llvm-svn: 95444
 2010-02-05 22:46:46 +00:00
Jakob Stoklund Olesen
670458b3be Teach SimplifyCFG about magic pointer constants. 
Weird code sometimes uses pointer constants other than null. This patch
teaches SimplifyCFG to build switch instructions in those cases.

Code like this:

void f(const char *x) {
  if (!x)
    puts("null");
  else if ((uintptr_t)x == 1)
    puts("one");
  else if (x == (char*)2 || x == (char*)3)
    puts("two");
  else if ((intptr_t)x == 4)
    puts("four");
  else
    puts(x);
}

Now becomes a switch:

define void @f(i8* %x) nounwind ssp {
entry:
  %magicptr23 = ptrtoint i8* %x to i64            ; <i64> [#uses=1]
  switch i64 %magicptr23, label %if.else16 [
    i64 0, label %if.then
    i64 1, label %if.then2
    i64 2, label %if.then9
    i64 3, label %if.then9
    i64 4, label %if.then14
  ]

Note that LLVM's own DenseMap uses magic pointers.

llvm-svn: 95439
 2010-02-05 22:03:18 +00:00
Chris Lattner
44965f1107 fix logical-select to invoke filecheck right, and fix hte instcombine 
xform it is checking to actually pass.  There is no need to match
m_SelectCst<0, -1> since instcombine canonicalizes that into not(sext).

Add matches for sext(not(x)) in addition to not(sext(x)).

llvm-svn: 95420
 2010-02-05 19:53:02 +00:00
Eric Christopher
f89979ce6a Remove this code for now. I have a better idea and will rewrite with 
that in mind.

llvm-svn: 95402
 2010-02-05 19:04:06 +00:00
Bill Wendling
c3f4101cc6 Make test more fucused eliminating extraneous bits. 
llvm-svn: 95384
 2010-02-05 11:21:05 +00:00
Evan Cheng
4b03f55de1 Fix test. 
llvm-svn: 95373
 2010-02-05 06:37:00 +00:00
Evan Cheng
81dde4c7f7 Handle tail call with byval arguments. 
llvm-svn: 95351
 2010-02-05 02:21:12 +00:00
Evan Cheng
94fe5501b7 When the scheduler unfold a load folding instruction it move some of the predecessors to the unfolded load. It decides what gets moved to the load by checking whether the new load is using the predecessor as an operand. The check neglects the cases whether the predecessor is a flagged scheduling unit. 
rdar://7604000

llvm-svn: 95339
 2010-02-05 01:27:11 +00:00
Bill Wendling
9761f067f8 An empty global constant (one of size 0) may have a section immediately 
following it. However, the EmitGlobalConstant method wasn't emitting a body for
the constant. The assembler doesn't like that. Before, we were generating this:

  .zerofill __DATA, __common, __cmd, 1, 3

This fix puts us back to that semantic.

llvm-svn: 95336
 2010-02-05 00:17:02 +00:00
Jakob Stoklund Olesen
d72e82107d Fix small bug in handling instructions with more than one implicitly defined operand. 
ProcessImplicitDefs would only mark one operand per instruction with <undef>.
This fixed PR6086.

llvm-svn: 95319
 2010-02-04 18:46:28 +00:00
Benjamin Kramer
707c8c5e00 Get the LLVMC tests working with clang++ by removing the problematic CXXFLAG in lit. 
llvm-svn: 95318
 2010-02-04 18:40:11 +00:00
Chris Lattner
43030eddcd fix a broken archive that was breaking dejagnu only (not lit) 
after r95292 

llvm-svn: 95296
 2010-02-04 07:11:08 +00:00
Evan Cheng
f5ee7fb571 Re-enable x86 tail call optimization. 
llvm-svn: 95295
 2010-02-04 06:47:24 +00:00
Eric Christopher
ee4a176739 Temporarily revert this since it appears to have caused a build 
failure.

llvm-svn: 95294
 2010-02-04 06:41:27 +00:00
Chris Lattner
e43007d443 add support for the sparcv9-*-* target triple to turn on 
64-bit sparc codegen.  Patch by Nathan Keynes!

llvm-svn: 95293
 2010-02-04 06:34:01 +00:00
Chris Lattner
eabd2085d7 From PR6228: 
"Attached patch removes the extra NUL bytes from the output and changes
test/Archive/MacOSX.toc from a binary to a text file (removes
svn:mime-type=application/octet-stream and adds svn:eol-style=native).  I can't
figure out how to get SVN to include the new contents of the file in the patch
so I'm attaching it separately."

Patch by James Abbatiello!

llvm-svn: 95292
 2010-02-04 06:19:43 +00:00
Eric Christopher
9b3e42f09e Rework constant expr and array handling for objectsize instcombining. 
Fix bugs where we would compute out of bounds as in bounds, and where
we couldn't know that the linker could override the size of an array.

Add a few new testcases, change existing testcase to use a private
global array instead of extern.

llvm-svn: 95283
 2010-02-04 02:55:34 +00:00
Victor Hernandez
28f795182c Fix (and test) function-local metadata that occurs before the instruction that it refers to; fix is to not enumerate operands of function-local metadata until after all instructions have been enumerated 
llvm-svn: 95269
 2010-02-04 01:13:08 +00:00
Eric Christopher
fe6ab1518e If we're dealing with a zero-length array, don't lower to any 
particular size, we just don't know what the length is yet.

llvm-svn: 95266
 2010-02-03 23:56:07 +00:00
Dale Johannesen
c413673047 This test passes now on ppc darwin; if it doesn't pass 
on some other ppc say something on the list.

llvm-svn: 95265
 2010-02-03 22:33:17 +00:00
Dale Johannesen
0a85fd105b This test passes now on ppc darwin, so reenable it. 
llvm-svn: 95264
 2010-02-03 22:29:02 +00:00
Dale Johannesen
ddc82307fa Debugging is now reenabled on PPC darwin, so reenable 
these tests (they pass).

llvm-svn: 95263
 2010-02-03 22:24:49 +00:00
Evan Cheng
5c8b1b9164 Speculatively disable x86 automatic tail call optimization while we track down a self-hosting issue. 
llvm-svn: 95259
 2010-02-03 21:40:40 +00:00
Evan Cheng
ccbbdfa8c4 Make test less fragile 
llvm-svn: 95258
 2010-02-03 21:39:04 +00:00
Kevin Enderby
57859abd72 Added support for X86 instruction prefixes so llvm-mc can assemble them. The 
Lock prefix, Repeat string operation prefixes and the Segment override prefixes.
Also added versions of the move string and store string instructions without the
repeat prefixes to X86InstrInfo.td. And finally marked the rep versions of
move/store string records in X86InstrInfo.td as isCodeGenOnly = 1 so tblgen is
happy building the disassembler files.

llvm-svn: 95252
 2010-02-03 21:04:42 +00:00
Daniel Dunbar
37b3f25e19 Add llvm_supports_darwin_and_target to DejaGNU as well, I'd almost forgotten it 
ever existed. :)

llvm-svn: 95230
 2010-02-03 18:43:46 +00:00
Evan Cheng
e273e42195 Revert 94937 and move the noreturn check to codegen. 
llvm-svn: 95198
 2010-02-03 03:55:59 +00:00