Commit Graph

9154 Commits

Author SHA1 Message Date
Evan Cheng
00a99a3584 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95493 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06 09:07:11 +00:00
Evan Cheng
e3e86dce64 Remove a large test case that (soon will) no longer make sense.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95492 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06 09:00:30 +00:00
Rafael Espindola
2f82ca904a Fix alignment on ppc linux. This fixes the build of crtend.o
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95477 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06 03:32:21 +00:00
Evan Cheng
f22f9b35d6 Do not emit callseq instructions around sibcalls. This eliminated some unnecessary stack adjustments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95475 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06 03:28:46 +00:00
Victor Hernandez
2b3365ca1d 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95467 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06 01:21:09 +00:00
Bob Wilson
8d535859e5 Add a test for my change to disable reassociation for i1 types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95465 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06 01:16:25 +00:00
Bob Wilson
e6373eb826 Handle AddrMode6 (for NEON load/stores) in Thumb2's rewriteT2FrameIndex.
Radar 7614112.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95456 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06 00:24:38 +00:00
Jakob Stoklund Olesen
d450e5b886 Don't unroll loops containing function calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95454 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 23:21:31 +00:00
Chris Lattner
8f60e4d679 fix incorrect encoding of SBB8mi that Kevin noticed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95448 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 22:56:11 +00:00
Chris Lattner
3f1118310e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95446 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 22:49:06 +00:00
Chris Lattner
c8296a0d59 remove fixme
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95444 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 22:46:46 +00:00
Jakob Stoklund Olesen
58e9ee85fd 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95439 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 22:03:18 +00:00
Chris Lattner
74529826a7 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)).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95420 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 19:53:02 +00:00
Eric Christopher
724bea90b0 Remove this code for now. I have a better idea and will rewrite with
that in mind.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95402 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 19:04:06 +00:00
Bill Wendling
63d58ebd09 Make test more fucused eliminating extraneous bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95384 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 11:21:05 +00:00
Evan Cheng
401f030fb8 Fix test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95373 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 06:37:00 +00:00
Evan Cheng
5f94193b36 Handle tail call with byval arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95351 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 02:21:12 +00:00
Evan Cheng
5ba8bf6d28 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95339 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 01:27:11 +00:00
Bill Wendling
744f579b63 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95336 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05 00:17:02 +00:00
Jakob Stoklund Olesen
e4d2d96cc8 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95319 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04 18:46:28 +00:00
Benjamin Kramer
66c439af28 Get the LLVMC tests working with clang++ by removing the problematic CXXFLAG in lit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95318 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04 18:40:11 +00:00
Chris Lattner
a3b24f80d9 fix a broken archive that was breaking dejagnu only (not lit)
after r95292 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95296 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04 07:11:08 +00:00
Evan Cheng
1f2fda97b1 Re-enable x86 tail call optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95295 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04 06:47:24 +00:00
Eric Christopher
e7b97471f8 Temporarily revert this since it appears to have caused a build
failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95294 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04 06:41:27 +00:00
Chris Lattner
87c06d6179 add support for the sparcv9-*-* target triple to turn on
64-bit sparc codegen.  Patch by Nathan Keynes!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95293 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04 06:34:01 +00:00
Chris Lattner
4633306844 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!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95292 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04 06:19:43 +00:00
Eric Christopher
ea4b6dfd8f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95283 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04 02:55:34 +00:00
Victor Hernandez
af6ce14d67 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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95269 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04 01:13:08 +00:00
Eric Christopher
ec5ef6d8b0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95266 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 23:56:07 +00:00
Dale Johannesen
9e90619a0e This test passes now on ppc darwin; if it doesn't pass
on some other ppc say something on the list.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95265 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 22:33:17 +00:00
Dale Johannesen
60dab956ff This test passes now on ppc darwin, so reenable it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95264 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 22:29:02 +00:00
Dale Johannesen
ab847e7acb Debugging is now reenabled on PPC darwin, so reenable
these tests (they pass).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95263 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 22:24:49 +00:00
Evan Cheng
8148ae8847 Speculatively disable x86 automatic tail call optimization while we track down a self-hosting issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95259 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 21:40:40 +00:00
Evan Cheng
394f1b5334 Make test less fragile
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95258 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 21:39:04 +00:00
Kevin Enderby
12ce0de462 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95252 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 21:04:42 +00:00
Daniel Dunbar
9e2556c7bf Add llvm_supports_darwin_and_target to DejaGNU as well, I'd almost forgotten it
ever existed. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95230 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 18:43:46 +00:00
Evan Cheng
febc81680c Revert 94937 and move the noreturn check to codegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95198 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 03:55:59 +00:00
Evan Cheng
86809ccdad Allow all types of callee's to be tail called. But avoid automatic tailcall if the callee is a result of bitcast to avoid losing necessary zext / sext etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 03:28:02 +00:00
Dale Johannesen
9a6636b2cd Reapply 95050 with a tweak to check the register class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95183 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 01:40:33 +00:00
Chris Lattner
e0bb20cc03 make these less sensitive to asm verbose changes by disabling it for them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95175 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 00:48:53 +00:00
Eric Christopher
0c6a8f9eda Recommit this, looks like it wasn't the cause.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95165 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 00:21:58 +00:00
Daniel Dunbar
e7070e9006 AsmParser/X86: Add temporary hack to allow parsing "sal". Eventually we need
some mechanism for specifying alternative syntaxes, but I'm not sure what form
that should take yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95158 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 23:46:47 +00:00
Eric Christopher
9f34dd305b Hopefully temporarily revert this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95154 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 23:01:31 +00:00
Chris Lattner
4105155231 remove the # TAILCALL markers, which was causing the to fail.
It's unclear if the matcher is nondeterminstic of what here,
but I'm getting matches without TAILCALL and some other hosts
are getting matches with it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95149 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 22:36:29 +00:00
Eric Christopher
a6a089cd24 Re-add strcmp and known size object size checking optimization.
Passed bootstrap and nightly test run here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 22:10:43 +00:00
Daniel Dunbar
197f1f0246 MCAssembler/Darwin: Add a test (on Darwin) that we assemble a bunch of
instructions exactly like 'as', and produce equivalent .o files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95143 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 22:00:15 +00:00
Daniel Dunbar
e1ec617c6a MC/Mach-O: Set SOME_INSTRUCTIONS bit for sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95135 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 21:44:01 +00:00
Chris Lattner
1de46a4ab5 this apparently depends on the host somehow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95122 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 20:57:28 +00:00
Bill Wendling
3900837ca6 XFAIL for PPC Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95121 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 20:56:02 +00:00
Chris Lattner
d56f80358b disable this test for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95120 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 20:41:39 +00:00