oota-llvm.git
16 years agoFix a bug where scalarrepl would discard offset if type would match.
Chris Lattner [Wed, 30 Jan 2008 00:39:15 +0000 (00:39 +0000)]
Fix a bug where scalarrepl would discard offset if type would match.
In practice this can only happen on code with already undefined behavior,
but this is still a good thing to handle correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46539 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFactor the addressing mode and the load/store VT out of LoadSDNode
Dan Gohman [Wed, 30 Jan 2008 00:15:11 +0000 (00:15 +0000)]
Factor the addressing mode and the load/store VT out of LoadSDNode
and StoreSDNode into their common base class LSBaseSDNode. Member
functions getLoadedVT and getStoredVT are replaced with the common
getMemoryVT to simplify code that will handle both loads and stores.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46538 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoWork in progress. This patch *fixes* x86-64 calls which are modelled as StructRet...
Evan Cheng [Tue, 29 Jan 2008 19:34:22 +0000 (19:34 +0000)]
Work in progress. This patch *fixes* x86-64 calls which are modelled as StructRet but really should be return in registers, e.g. _Complex long double, some 128-bit aggregates. This is a short term solution that is necessary only because llvm, for now, cannot model i128 nor call's with multiple results.
Status: This only works for direct calls, and only the caller side is done. Disabled for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46527 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUpdate this test case.
Evan Cheng [Tue, 29 Jan 2008 19:30:05 +0000 (19:30 +0000)]
Update this test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46526 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoWhen expanding an operand, it's not the result value
Duncan Sands [Tue, 29 Jan 2008 19:29:08 +0000 (19:29 +0000)]
When expanding an operand, it's not the result value
type that matters but the operand type.  This fixes
2008-01-08-IllegalCMP.ll which crashed with the new
legalize infrastructure because SETCC with result
type i8 and operand type i64 was being custom expanded
by the X86 backend.  With this fix, the gcc build gets
as far as the first libcall.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46525 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDon't let globalopt hack on volatile loads or stores.
Chris Lattner [Tue, 29 Jan 2008 19:01:37 +0000 (19:01 +0000)]
Don't let globalopt hack on volatile loads or stores.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46523 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAltered ctor for APSInt to accept an optional "isUnsigned" flag. Default
Ted Kremenek [Tue, 29 Jan 2008 18:55:14 +0000 (18:55 +0000)]
Altered ctor for APSInt to accept an optional "isUnsigned" flag.  Default
behavior is unchanged.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46521 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUse empty() instead of comparing size() with zero.
Dan Gohman [Tue, 29 Jan 2008 13:02:09 +0000 (13:02 +0000)]
Use empty() instead of comparing size() with zero.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46514 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix a typo in a comment.
Dan Gohman [Tue, 29 Jan 2008 12:43:50 +0000 (12:43 +0000)]
Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46513 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUpdate this file for 2.0 syntax.
Dan Gohman [Tue, 29 Jan 2008 12:35:50 +0000 (12:35 +0000)]
Update this file for 2.0 syntax.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46512 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd comments describing what the loop depth values mean. Also, make a
Dan Gohman [Tue, 29 Jan 2008 12:12:40 +0000 (12:12 +0000)]
Add comments describing what the loop depth values mean. Also, make a
minor simplification to the loop depth calculation code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46511 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix 80-col violations.
Dan Gohman [Tue, 29 Jan 2008 12:09:55 +0000 (12:09 +0000)]
Fix 80-col violations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46510 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoRemove top-level const qualifiers from casts, avoiding associated
Dan Gohman [Tue, 29 Jan 2008 12:08:20 +0000 (12:08 +0000)]
Remove top-level const qualifiers from casts, avoiding associated
compiler warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46509 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix a typo in a comment.
Dan Gohman [Tue, 29 Jan 2008 12:07:11 +0000 (12:07 +0000)]
Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46508 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix a typo in a comment.
Dan Gohman [Tue, 29 Jan 2008 12:06:33 +0000 (12:06 +0000)]
Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46507 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd explicit keywords.
Dan Gohman [Tue, 29 Jan 2008 11:36:12 +0000 (11:36 +0000)]
Add explicit keywords.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46506 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agollvm.sqrt(-0.0) is defined.
Chris Lattner [Tue, 29 Jan 2008 07:00:44 +0000 (07:00 +0000)]
llvm.sqrt(-0.0) is defined.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46500 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoeliminate additions of 0.0 when they are obviously dead. This has to be careful to
Chris Lattner [Tue, 29 Jan 2008 06:52:45 +0000 (06:52 +0000)]
eliminate additions of 0.0 when they are obviously dead.  This has to be careful to
avoid turning -0.0 + 0.0 -> -0.0 which is incorrect.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46499 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd a testcase for eliminating memcpy's at the end of functions. Forgot to commit...
Owen Anderson [Tue, 29 Jan 2008 06:40:32 +0000 (06:40 +0000)]
Add a testcase for eliminating memcpy's at the end of functions.  Forgot to commit this with my last commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46497 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd target triples to these so they don't fail on linux.
Chris Lattner [Tue, 29 Jan 2008 06:26:07 +0000 (06:26 +0000)]
Add target triples to these so they don't fail on linux.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46496 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUse getPreferredAlignmentLog or getPreferredAlignment
Duncan Sands [Tue, 29 Jan 2008 06:23:44 +0000 (06:23 +0000)]
Use getPreferredAlignmentLog or getPreferredAlignment
to get the alignment of global variables, rather than
using hand-made versions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46495 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd support for eliminating memcpy's at the end of functions. Also fix some errors...
Owen Anderson [Tue, 29 Jan 2008 06:18:36 +0000 (06:18 +0000)]
Add support for eliminating memcpy's at the end of functions.  Also fix some errors I noticed in
the handling of eliminating stores to byval arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46494 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoThis would be better done as an executable test.
Duncan Sands [Tue, 29 Jan 2008 06:04:54 +0000 (06:04 +0000)]
This would be better done as an executable test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46493 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAfter recent changes we fail to optimize this test
Duncan Sands [Tue, 29 Jan 2008 05:57:23 +0000 (05:57 +0000)]
After recent changes we fail to optimize this test
sufficiently to have it pass.  I'm removing it from
the testsuite and adding it to PR452 instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46492 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoRegAllocBigBlock doesn't need LiveVariables either.
Owen Anderson [Tue, 29 Jan 2008 02:32:13 +0000 (02:32 +0000)]
RegAllocBigBlock doesn't need LiveVariables either.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46488 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix to bug 1951: tblgen gratuitously renames variables when no temporary was
Scott Michel [Tue, 29 Jan 2008 02:29:31 +0000 (02:29 +0000)]
Fix to bug 1951: tblgen gratuitously renames variables when no temporary was
generated. This feature would only show up in fairly complex patterns, such
as this one in CellSPU:

  def : Pat<(add (SPUhi tconstpool:$in, 0), (SPUlo tconstpool:$in, 0)),
    (IOHLlo (ILHUhi tconstpool:$in), tconstpool:$in)>;

which generated the following emit code:

SDNode *Emit_0(const SDOperand &N, unsigned Opc0, unsigned Opc1, MVT::ValueType VT0, MVT::ValueType VT1) DISABLE_INLINE {
  SDOperand N0 = N.getOperand(0);
  SDOperand N00 = N0.getOperand(0);
  SDOperand N01 = N0.getOperand(1);
  SDOperand N1 = N.getOperand(1);
  SDOperand N10 = N1.getOperand(0);
  SDOperand N11 = N1.getOperand(1);
  SDOperand Tmp3(CurDAG->getTargetNode(Opc0, VT0, N00), 0);
  return CurDAG->SelectNodeTo(N.Val, Opc1, VT1, Tmp3, Tmp2); /* Tmp2 s/b N00 */
}

Tested against the test suites without incident.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46487 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoProperly expand extract-element for non-power-of-2 codegen
Nate Begeman [Tue, 29 Jan 2008 02:24:00 +0000 (02:24 +0000)]
Properly expand extract-element for non-power-of-2 codegen

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46486 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoHandle 'X' constraint in asm's better.
Dale Johannesen [Tue, 29 Jan 2008 02:21:21 +0000 (02:21 +0000)]
Handle 'X' constraint in asm's better.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46485 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFilter loops that subtract induction variables.
Devang Patel [Tue, 29 Jan 2008 02:20:41 +0000 (02:20 +0000)]
Filter loops that subtract induction variables.
These loops are not yet handled.

Fix PR 1912.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46484 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoOverhaul Cell SPU's addressing mode internals so that there are now
Scott Michel [Tue, 29 Jan 2008 02:16:57 +0000 (02:16 +0000)]
Overhaul Cell SPU's addressing mode internals so that there are now
only two addressing mode nodes, SPUaform and SPUindirect (vice the
three previous ones, SPUaform, SPUdform and SPUxform). This improves
code somewhat because we now avoid using reg+reg addressing when
it can be avoided. It also simplifies the address selection logic,
which was the main point for doing this.

Also, for various global variables that would be loaded using SPU's
A-form addressing, prefer D-form offs[reg] addressing, keeping the
base in a register if the variable is used more than once.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46483 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoNew test.
Devang Patel [Tue, 29 Jan 2008 01:10:04 +0000 (01:10 +0000)]
New test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46479 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd test to make sure that #pragma mark/error doesn't error if there are
Bill Wendling [Tue, 29 Jan 2008 00:41:29 +0000 (00:41 +0000)]
Add test to make sure that #pragma mark/error doesn't error if there are
unbalanced quotes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46476 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdded destructor for template class FoldingSetNodeWrapper.
Ted Kremenek [Mon, 28 Jan 2008 22:05:23 +0000 (22:05 +0000)]
Added destructor for template class FoldingSetNodeWrapper.
Added getValue() to FoldingSetNodeWrapper.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46465 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoSimplify the code and fix a typo.
Lauro Ramos Venancio [Mon, 28 Jan 2008 20:02:51 +0000 (20:02 +0000)]
Simplify the code and fix a typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46458 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoPure/const functions with ByVal parameters cannot
Duncan Sands [Mon, 28 Jan 2008 19:25:47 +0000 (19:25 +0000)]
Pure/const functions with ByVal parameters cannot
be marked readonly either.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46456 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix fpcmp infinite loop when comparing "29-266" with "29-268".
Lauro Ramos Venancio [Mon, 28 Jan 2008 18:23:23 +0000 (18:23 +0000)]
Fix fpcmp infinite loop when comparing "29-266" with "29-268".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46455 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agothis test is now compiled into the right thing.
Chris Lattner [Mon, 28 Jan 2008 17:38:46 +0000 (17:38 +0000)]
this test is now compiled into the right thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46454 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUnbreak builds with differing object and source
Duncan Sands [Mon, 28 Jan 2008 17:38:30 +0000 (17:38 +0000)]
Unbreak builds with differing object and source
directories.  Patch by Sam Bishop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46453 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoMake this more likely to be passed byval.
Duncan Sands [Mon, 28 Jan 2008 10:35:11 +0000 (10:35 +0000)]
Make this more likely to be passed byval.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46451 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoIf the function has no machine instructions, then emit a "nop" so that
Bill Wendling [Mon, 28 Jan 2008 09:15:03 +0000 (09:15 +0000)]
If the function has no machine instructions, then emit a "nop" so that
the function label isn't associated with something it shouldn't be.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46449 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoTransform calls to memcpy into llvm.memcpy calls, patch by Eli Friedman.
Chris Lattner [Mon, 28 Jan 2008 04:41:43 +0000 (04:41 +0000)]
Transform calls to memcpy into llvm.memcpy calls, patch by Eli Friedman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46433 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoreduce duplicate -I flags passed to the compiler, cleaning up the VERBOSE
Chris Lattner [Mon, 28 Jan 2008 04:18:41 +0000 (04:18 +0000)]
reduce duplicate -I flags passed to the compiler, cleaning up the VERBOSE
output.  Patch contributed by Sam Bishop!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46432 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoHandle some more combinations of extend and icmp. Fixes PR1940.
Nick Lewycky [Mon, 28 Jan 2008 03:48:02 +0000 (03:48 +0000)]
Handle some more combinations of extend and icmp. Fixes PR1940.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46431 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix PR1932 by disabling an xform invalid for fdiv.
Chris Lattner [Mon, 28 Jan 2008 00:58:18 +0000 (00:58 +0000)]
Fix PR1932 by disabling an xform invalid for fdiv.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46429 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agomake handling of overflow and undefined results much more clear.
Chris Lattner [Mon, 28 Jan 2008 00:36:27 +0000 (00:36 +0000)]
make handling of overflow and undefined results much more clear.
Patch by Eli Friedman, thanks!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46428 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix PR1938 by forcing the code that uses an undefined value to branch one
Chris Lattner [Mon, 28 Jan 2008 00:32:30 +0000 (00:32 +0000)]
Fix PR1938 by forcing the code that uses an undefined value to branch one
way or the other.  Rewriting the code itself prevents subsequent analysis
passes from making contradictory conclusions about the code that could
cause an infeasible path to be made feasible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46427 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAlways for PACKAGEVERSION to 'mainline' for teh llvm web page.
Chris Lattner [Sun, 27 Jan 2008 23:43:26 +0000 (23:43 +0000)]
Always for PACKAGEVERSION to 'mainline' for teh llvm web page.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46425 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix PowerPC/./2007-10-18-PtrArithmetic.ll
Chris Lattner [Sun, 27 Jan 2008 23:32:17 +0000 (23:32 +0000)]
Fix PowerPC/./2007-10-18-PtrArithmetic.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46424 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUpdate this test. Due to dag combiner improvements, we now compile
Chris Lattner [Sun, 27 Jan 2008 23:26:37 +0000 (23:26 +0000)]
Update this test.  Due to dag combiner improvements, we now compile
f7/f11 to:

_f7:
eor r0, r0, #2, 2 @ -2147483648
bx lr
_f11:
bic r0, r0, #2, 2 @ -2147483648
bx lr

instead of:

_f7:
fmsr s0, r0
fnegs s0, s0
fmrs r0, s0
bx lr

_f11:
fmsr s0, r0
fabss s0, s0
fmrs r0, s0
bx lr

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46423 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agofix a crash on CodeGen/X86/vector-rem.ll
Chris Lattner [Sun, 27 Jan 2008 23:21:58 +0000 (23:21 +0000)]
fix a crash on CodeGen/X86/vector-rem.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46422 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd support for frameworks. Patch by Shantonu Sen!
Chris Lattner [Sun, 27 Jan 2008 22:58:59 +0000 (22:58 +0000)]
Add support for frameworks.  Patch by Shantonu Sen!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46421 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoReg alloc doesn't really need LiveVariables.
Owen Anderson [Sun, 27 Jan 2008 22:00:00 +0000 (22:00 +0000)]
Reg alloc doesn't really need LiveVariables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46420 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFixes for BreakCriticalMachineCodeEdge by Fernando.
Owen Anderson [Sun, 27 Jan 2008 19:51:03 +0000 (19:51 +0000)]
Fixes for BreakCriticalMachineCodeEdge by Fernando.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46419 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoBe more careful modifying the use_list while also iterating through it.
Nick Lewycky [Sun, 27 Jan 2008 18:35:00 +0000 (18:35 +0000)]
Be more careful modifying the use_list while also iterating through it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46417 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoRevert r46393: readonly/readnone functions are no
Duncan Sands [Sun, 27 Jan 2008 18:12:58 +0000 (18:12 +0000)]
Revert r46393: readonly/readnone functions are no
longer allowed to write through byval arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46416 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoImplement some dag combines that allow doing fneg/fabs/fcopysign in integer
Chris Lattner [Sun, 27 Jan 2008 17:42:27 +0000 (17:42 +0000)]
Implement some dag combines that allow doing fneg/fabs/fcopysign in integer
registers if used by a bitconvert or using a bitconvert.  This allows us to
avoid constant pool loads and use cheaper integer instructions when the
values come from or end up in integer regs anyway.  For example, we now
compile CodeGen/X86/fp-in-intregs.ll to:

_test1:
movl $2147483648, %eax
xorl 4(%esp), %eax
ret
_test2:
movl $1065353216, %eax
orl 4(%esp), %eax
andl $3212836864, %eax
ret

Instead of:
_test1:
movss 4(%esp), %xmm0
xorps LCPI2_0, %xmm0
movd %xmm0, %eax
ret
_test2:
movss 4(%esp), %xmm0
andps LCPI3_0, %xmm0
movss LCPI3_1, %xmm1
andps LCPI3_2, %xmm1
orps %xmm0, %xmm1
movd %xmm1, %eax
ret

bitconverts can happen due to various calling conventions that require
fp values to passed in integer regs in some cases, e.g. when returning
a complex.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46414 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoadd a note
Chris Lattner [Sun, 27 Jan 2008 07:31:41 +0000 (07:31 +0000)]
add a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46413 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUse fldz and fld1 for long double constants instead of a constant pool load.
Chris Lattner [Sun, 27 Jan 2008 06:19:31 +0000 (06:19 +0000)]
Use fldz and fld1 for long double constants instead of a constant pool load.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46411 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agomake isExactlyValue work for long double.
Chris Lattner [Sun, 27 Jan 2008 06:19:08 +0000 (06:19 +0000)]
make isExactlyValue work for long double.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46410 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoThe CorrelatedExpressions pass is now no more.
Bill Wendling [Sun, 27 Jan 2008 06:13:32 +0000 (06:13 +0000)]
The CorrelatedExpressions pass is now no more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46409 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoThe CorrelatedExpressionElimination pass is known to be buggy. Remove it.
Bill Wendling [Sun, 27 Jan 2008 06:11:41 +0000 (06:11 +0000)]
The CorrelatedExpressionElimination pass is known to be buggy. Remove it.

This fixes PR1769.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46408 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFor long double constants, print an approximation of their value to the .s file to...
Chris Lattner [Sun, 27 Jan 2008 06:09:28 +0000 (06:09 +0000)]
For long double constants, print an approximation of their value to the .s file to make it easier to read.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46407 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFold fptrunc(add (fpextend x), (fpextend y)) -> add(x,y), as GCC does.
Chris Lattner [Sun, 27 Jan 2008 05:29:54 +0000 (05:29 +0000)]
Fold fptrunc(add (fpextend x), (fpextend y)) -> add(x,y), as GCC does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46406 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd some notes.
Chris Lattner [Sat, 26 Jan 2008 20:12:07 +0000 (20:12 +0000)]
Add some notes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46405 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoRemove some code for inferring alignment info from the x86 backend
Chris Lattner [Sat, 26 Jan 2008 20:07:42 +0000 (20:07 +0000)]
Remove some code for inferring alignment info from the x86 backend
now that the dag combiner does it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46404 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoNew test to verify that "merging 4 loads into a vec load" continues to work and
Chris Lattner [Sat, 26 Jan 2008 20:06:45 +0000 (20:06 +0000)]
New test to verify that "merging 4 loads into a vec load" continues to work and
continues to infer alignment info.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46403 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agomake this 64-bit safe
Chris Lattner [Sat, 26 Jan 2008 19:50:30 +0000 (19:50 +0000)]
make this 64-bit safe

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46402 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoInfer alignment of loads and increase their alignment when we can tell they are
Chris Lattner [Sat, 26 Jan 2008 19:45:50 +0000 (19:45 +0000)]
Infer alignment of loads and increase their alignment when we can tell they are
from the stack.  This allows us to compile stack-align.ll to:

_test:
movsd LCPI1_0, %xmm0
movapd %xmm0, %xmm1
*** andpd 4(%esp), %xmm1
andpd _G, %xmm0
addsd %xmm1, %xmm0
movl 20(%esp), %eax
movsd %xmm0, (%eax)
ret

instead of:

_test:
movsd LCPI1_0, %xmm0
** movsd 4(%esp), %xmm1
** andpd %xmm0, %xmm1
andpd _G, %xmm0
addsd %xmm1, %xmm0
movl 20(%esp), %eax
movsd %xmm0, (%eax)
ret

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46401 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoremove a useless xfailed test.
Chris Lattner [Sat, 26 Jan 2008 19:35:46 +0000 (19:35 +0000)]
remove a useless xfailed test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46400 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoInvert this test, because it is wrong if we allow
Duncan Sands [Sat, 26 Jan 2008 12:33:01 +0000 (12:33 +0000)]
Invert this test, because it is wrong if we allow
readonly functions to use byval parameters as local
storage (how much do we want this?).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46399 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoIf there's no instructions being emitted on X86 for a function, emit a
Bill Wendling [Sat, 26 Jan 2008 09:03:52 +0000 (09:03 +0000)]
If there's no instructions being emitted on X86 for a function, emit a
nop. Emit the nop directly for PPC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46398 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoNeed to convert to LLVM code and not C.
Bill Wendling [Sat, 26 Jan 2008 06:56:08 +0000 (06:56 +0000)]
Need to convert to LLVM code and not C.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46397 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoRename the .c to .ll
Bill Wendling [Sat, 26 Jan 2008 06:53:40 +0000 (06:53 +0000)]
Rename the .c to .ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46396 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoMove testcase to the code gen directory.
Bill Wendling [Sat, 26 Jan 2008 06:53:06 +0000 (06:53 +0000)]
Move testcase to the code gen directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46395 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoIf there are no machine instructions emitted for a function, then insert
Bill Wendling [Sat, 26 Jan 2008 06:51:24 +0000 (06:51 +0000)]
If there are no machine instructions emitted for a function, then insert
a "nop" instruction so that we don't have the function's label associated
with something that it's not supposed to be associated with.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46394 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoCreate an explicit copy for byval parameters even
Duncan Sands [Sat, 26 Jan 2008 06:41:49 +0000 (06:41 +0000)]
Create an explicit copy for byval parameters even
when inlining a readonly function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46393 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoIf we have a function like this:
Bill Wendling [Sat, 26 Jan 2008 01:43:44 +0000 (01:43 +0000)]
If we have a function like this:

void bork() {
  int *address = 0;
  *address = 0;
}

It's compiled into LLVM code that looks like this:

define void @bork() noreturn nounwind  {
entry:
        unreachable
}

This is bad on some platforms (like PPC) because it will generate the label for
the function but no body. The label could end up being associated with some
non-code related stuff, like a section. This places a "trap" instruction if the
SimplifyCFG pass removed all code from the function leaving only one
"unreachable" instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46387 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd another testcase.
Devang Patel [Sat, 26 Jan 2008 01:21:48 +0000 (01:21 +0000)]
Add another testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46385 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix some bugs in SimplifyNodeWithTwoResults where it would call deletenode to
Chris Lattner [Sat, 26 Jan 2008 01:09:19 +0000 (01:09 +0000)]
Fix some bugs in SimplifyNodeWithTwoResults where it would call deletenode to
delete a node even if it was not dead in some cases.  Instead, just add it to
the worklist.  Also, make sure to use the CombineTo methods, as it was doing
things that were unsafe: the top level combine loop could touch dangling memory.

This fixes CodeGen/Generic/2008-01-25-dag-combine-mul.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46384 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agodon't bother making x&-1 only to simplify it in dag combine. This commonly occurs...
Chris Lattner [Sat, 26 Jan 2008 01:05:42 +0000 (01:05 +0000)]
don't bother making x&-1 only to simplify it in dag combine.  This commonly occurs expanding i64 ops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46383 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoNew test case.
Evan Cheng [Sat, 26 Jan 2008 00:35:43 +0000 (00:35 +0000)]
New test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46382 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoreduce indentation
Chris Lattner [Fri, 25 Jan 2008 23:34:24 +0000 (23:34 +0000)]
reduce indentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46377 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoadd a testcase for a bug Duncan pointed out.
Chris Lattner [Fri, 25 Jan 2008 22:36:24 +0000 (22:36 +0000)]
add a testcase for a bug Duncan pointed out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46372 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDo this more neatly.
Duncan Sands [Fri, 25 Jan 2008 22:06:51 +0000 (22:06 +0000)]
Do this more neatly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46369 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoReorder a field to reduce the size of StackObject. Note that this
Chris Lattner [Fri, 25 Jan 2008 17:49:41 +0000 (17:49 +0000)]
Reorder a field to reduce the size of StackObject.  Note that this
may require a clean rebuild on leopard. :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46360 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoTest for PR1942.
Duncan Sands [Fri, 25 Jan 2008 17:36:44 +0000 (17:36 +0000)]
Test for PR1942.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46357 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agofix long lines.
Chris Lattner [Fri, 25 Jan 2008 17:24:52 +0000 (17:24 +0000)]
fix long lines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46355 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoJITEmitter.cpp was trying to sync the icache for function stubs, but
Chris Lattner [Fri, 25 Jan 2008 16:41:09 +0000 (16:41 +0000)]
JITEmitter.cpp was trying to sync the icache for function stubs, but
was actually passing a completely incorrect size to sys_icache_invalidate.
Instead of having the JITEmitter do this (which doesn't have the correct
size), just make the target sync its own stubs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46354 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd more assertions to catch accesses outside of
Duncan Sands [Fri, 25 Jan 2008 10:20:53 +0000 (10:20 +0000)]
Add more assertions to catch accesses outside of
arrays.  Also, as a convenience, don't barf, just
return false, if someone calls isTruncStoreLegal
or isLoadXLegal with an extended type for the in
memory type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46352 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDeadStoreElimination can treat byval parameters as if there were alloca's for the...
Owen Anderson [Fri, 25 Jan 2008 10:10:33 +0000 (10:10 +0000)]
DeadStoreElimination can treat byval parameters as if there were alloca's for the purpose of removing end-of-function stores.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46351 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agomove this field back. Moving the field causes miscompilations (!) of voronoi and...
Chris Lattner [Fri, 25 Jan 2008 07:29:34 +0000 (07:29 +0000)]
move this field back.  Moving the field causes miscompilations (!) of voronoi and others.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46350 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd skeletal code to increase the alignment of loads and stores when
Chris Lattner [Fri, 25 Jan 2008 07:20:16 +0000 (07:20 +0000)]
Add skeletal code to increase the alignment of loads and stores when
we can infer it.  This will eventually help stuff, though it doesn't
do much right now because all fixed FI's have an alignment of 1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46349 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agomove MachineFrameInfo::CreateFixedObject out of line, give MachineFrameInfo
Chris Lattner [Fri, 25 Jan 2008 07:19:06 +0000 (07:19 +0000)]
move MachineFrameInfo::CreateFixedObject out of line, give MachineFrameInfo
a reference to TargetFrameInfo.  Rearrange order of fields in StackObject to
save a word.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46348 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoinclude alignment and volatility information in -view-*-dags output
Chris Lattner [Fri, 25 Jan 2008 06:40:45 +0000 (06:40 +0000)]
include alignment and volatility information in -view-*-dags output

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46347 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoadd a fixme.
Chris Lattner [Fri, 25 Jan 2008 06:20:20 +0000 (06:20 +0000)]
add a fixme.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46346 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agooptimize fxor like for
Chris Lattner [Fri, 25 Jan 2008 06:14:17 +0000 (06:14 +0000)]
optimize fxor like for

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46345 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd target-specific dag combines for FAND(x,0) and FOR(x,0). This allows
Chris Lattner [Fri, 25 Jan 2008 05:46:26 +0000 (05:46 +0000)]
Add target-specific dag combines for FAND(x,0) and FOR(x,0).  This allows
us to compile:

double test(double X) {
  return copysign(0.0, X);
}

into:

_test:
andpd LCPI1_0(%rip), %xmm0
ret

instead of:
_test:
pxor %xmm1, %xmm1
andpd LCPI1_0(%rip), %xmm1
movapd %xmm0, %xmm2
andpd LCPI1_1(%rip), %xmm2
movapd %xmm1, %xmm0
orpd %xmm2, %xmm0
ret

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46344 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoProvide correct DWARF register numbering for debug information emission on x86-32...
Anton Korobeynikov [Fri, 25 Jan 2008 00:34:13 +0000 (00:34 +0000)]
Provide correct DWARF register numbering for debug information emission on x86-32/Darwin.
This should fix bunch of issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46337 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoNew test.
Devang Patel [Thu, 24 Jan 2008 23:55:34 +0000 (23:55 +0000)]
New test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46333 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDon't dump the function!
Chris Lattner [Thu, 24 Jan 2008 19:28:11 +0000 (19:28 +0000)]
Don't dump the function!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46320 91177308-0d34-0410-b5e6-96231b3b80d8