Commit Graph

35706 Commits

Author SHA1 Message Date
Bob Wilson 4b71b6c179 Use more specific types to avoid casts. No functionality change.
llvm-svn: 94863
2010-01-30 00:41:10 +00:00
Daniel Dunbar f05d00787a X86.td: Refactor to bring operands that use print_pcrel_imm together.
llvm-svn: 94861
2010-01-30 00:24:12 +00:00
Daniel Dunbar a97adee959 AsmMatcher/X86: Separate out sublass for memory operands that have no segment
register, and use to cleanup a FIXME in X86AsmParser.cpp.

llvm-svn: 94859
2010-01-30 00:24:00 +00:00
Jakob Stoklund Olesen e27dc727e2 Keep iterating over all uses when meeting a phi node in AllUsesOfValueWillTrapIfNull().
This bug was exposed by my inliner cost changes in r94615, and caused failures
of lencod on most architectures when building with LTO.

This patch fixes lencod and 464.h264ref on x86-64 (and likely others).

llvm-svn: 94858
2010-01-29 23:54:14 +00:00
Johnny Chen 34a6afc68d Modified encoding bits specification for VFP instructions. In particular, the D
bit (Inst{22}) and the M bit (Inst{5}) should be left unspecified.  For binary
format instructions, Inst{6} and Inst{4} need to specified for proper decodings.

llvm-svn: 94855
2010-01-29 23:21:10 +00:00
Dan Gohman 5ded1424b0 Print a comment next to "materializable" global values, to distinguish
them from values that are not actually defined in the module.

llvm-svn: 94854
2010-01-29 23:12:36 +00:00
Evan Cheng 25217ffaed PPC is not ready for sibcall optimization.
llvm-svn: 94853
2010-01-29 23:05:56 +00:00
Bob Wilson 1b8453067b Preserve load alignment in instcombine transformations. I've been unable to
create a testcase where this matters.  The select+load transformation only
occurs when isSafeToLoadUnconditionally is true, and in those situations,
instcombine also changes the underlying objects to be aligned.  This seems
like a good idea regardless, and I've verified that it doesn't pessimize
the subsequent realignment.

llvm-svn: 94850
2010-01-29 22:39:21 +00:00
Dale Johannesen ad00f03e86 Add assertion to humor the paranoid.
llvm-svn: 94843
2010-01-29 21:21:28 +00:00
Victor Hernandez 6b7f4216b6 We were not writing bitcode for function-local metadata whose operands have been erased (making it not have any more function-local operands)
llvm-svn: 94842
2010-01-29 21:19:19 +00:00
Eric Christopher 5a0e174863 Revert my last couple of patches. They appear to have broken bison.
llvm-svn: 94841
2010-01-29 21:16:24 +00:00
Bob Wilson 34e10c2218 Use uint64_t instead of unsigned for offsets and sizes.
llvm-svn: 94835
2010-01-29 20:34:28 +00:00
Bob Wilson 7c42b9d51e Improve isSafeToLoadUnconditionally to recognize that GEPs with constant
indices are safe if the result is known to be within the bounds of the
underlying object.

llvm-svn: 94829
2010-01-29 19:19:08 +00:00
Devang Patel aedd6f5b33 Add size and location info in DW_TAG_class_type descriptor.
llvm-svn: 94822
2010-01-29 18:34:58 +00:00
Devang Patel 7f8be9ba95 Before inserting llvm.dbg.declare intrinsic at the end of a basic block, check whether the basic block has a terminator or not.
This API is used by clang and the test case is test/CodeGen/debug-info-crash.c in clang module.

llvm-svn: 94820
2010-01-29 18:30:57 +00:00
Benjamin Kramer ef14f80e95 Fix MSVC build.
llvm-svn: 94809
2010-01-29 15:19:06 +00:00
Benjamin Kramer b17c58674e Convert some users of ftostr to raw_ostream.
llvm-svn: 94808
2010-01-29 14:42:22 +00:00
Benjamin Kramer 6bee24ae9a Use llvm::format instead of ftostr (which just calls sprintf).
llvm-svn: 94807
2010-01-29 14:40:33 +00:00
Duncan Sands 3327498095 Change the SREM case to match the logic in the IR version ComputeMaskedBits.
llvm-svn: 94805
2010-01-29 09:45:26 +00:00
Evan Cheng 297a494f55 Catch more trivial tail call opportunities: no inputs and output types match.
llvm-svn: 94804
2010-01-29 06:45:59 +00:00
Duncan Sands c8a3e56870 Having RHSKnownZero and RHSKnownOne be alternative names for KnownZero and KnownOne
(via APInt &RHSKnownZero = KnownZero, etc) seems dangerous and confusing to me: it
is easy not to notice this, and then wonder why KnownZero/RHSKnownZero changed
underneath you when you modified RHSKnownZero/KnownZero etc.  So get rid of this.
No intended functionality change (tested with "make check" + llvm-gcc bootstrap).

llvm-svn: 94802
2010-01-29 06:18:46 +00:00
Duncan Sands 26cd6bd0b0 It looks like the changes to the SRem logic of SimplifyDemandedUseBits
(fix for PR6165) are needed here too.

llvm-svn: 94801
2010-01-29 06:18:37 +00:00
Eric Christopher 9b3c02b7da Make strcpy_chk lower to strcpy if we have a safe size.
llvm-svn: 94783
2010-01-29 01:37:11 +00:00
Eric Christopher 997f7ca8c5 Add constant support to object size handling and remove default
lowering. We'll either figure it out, or not and be lowered by
SelectionDAGBuild.

Add test.

llvm-svn: 94775
2010-01-29 01:09:57 +00:00
Bill Wendling 48816a0b3f Generic reformatting and comment fixing. No functionality change.
llvm-svn: 94771
2010-01-29 00:52:43 +00:00
Bill Wendling 8277838cf8 Add newline to debugging output, and fix some grammar-os in comment.
llvm-svn: 94765
2010-01-29 00:27:39 +00:00
Sean Callanan 82436d1666 Added a custom TableGen backend to support the
enhanced disassembler, and the necessary makefile
rules to build the table for X86.

llvm-svn: 94764
2010-01-29 00:21:04 +00:00
Victor Hernandez 006b53f199 mem2reg erases the dbg.declare intrinsics that it converts to dbg.val intrinsics
llvm-svn: 94763
2010-01-29 00:01:35 +00:00
Bill Wendling 954cb187e0 Assign the ordering of SDNodes in a much less intrusive fashion. After the
"visit*" method is called, take the newly created nodes, walk them in a DFS
fashion, and if they don't have an ordering set, then give it one.

llvm-svn: 94757
2010-01-28 21:51:40 +00:00
Dan Gohman a424b9fbd1 Remove the folding rule
getelementptr (i8* inttoptr (i64 1 to i8*), i32 -1) 
  to
  inttoptr (i64 0 to i8*)
from the VMCore constant folder. It didn't handle sign-extension properly
in the case where the source integer is smaller than a pointer size. And,
it relied on an assumption about sizeof(i8).

The Analysis constant folder still folds these kinds of things; it has
access to TargetData, so it can do them right.

Add a testcase which tests that the VMCore constant folder doesn't
miscompile this, and that the Analysis folder does fold it.

llvm-svn: 94750
2010-01-28 18:08:26 +00:00
Benjamin Kramer 29063eac23 Replace strcpy with memcpy when we have the length around anyway.
llvm-svn: 94746
2010-01-28 18:04:38 +00:00
Duncan Sands 3a48b87c54 Fix PR6165. The bug was that LHSKnownZero was being and'd with DemandedMask
when it should have been and'd with LowBits.  Fix that and while there beef
up the logic in the case of a negative LHS.

llvm-svn: 94745
2010-01-28 17:22:42 +00:00
Douglas Gregor 1051937c21 Add llvm::Program::ChangeStderrToBinary().
llvm-svn: 94743
2010-01-28 06:42:08 +00:00
Dan Gohman 9f4ea22c88 Check Type::isSized before calling ScalarEvolution::getAllocSizeExpr,
rather than after.

llvm-svn: 94742
2010-01-28 06:32:46 +00:00
Chris Lattner cc9a6f0580 convert the last 3 targets to use EmitFunctionBody() now that
it has before/end body hooks.

 lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp |   49 ++-----------
 lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp   |   87 ++++++------------------
 lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp |   56 +++------------
 test/CodeGen/XCore/ashr.ll                      |    2 
 4 files changed, 48 insertions(+), 146 deletions(-)

llvm-svn: 94741
2010-01-28 06:22:43 +00:00
Dan Gohman a9be73929f Make getAlignOf return an i64, for consistency with getSizeOf and
getOffsetOf, and remove the comment about assuming i8 is byte-aligned,
which is no longer applicable.

llvm-svn: 94738
2010-01-28 02:43:22 +00:00
Dan Gohman cf9138307d Remove SCEVAllocSizeExpr and SCEVFieldOffsetExpr, and in their place
use plain SCEVUnknowns with ConstantExpr::getSizeOf and
ConstantExpr::getOffsetOf constants. This eliminates a bunch of
special-case code.

Also add code for pattern-matching these expressions, for clients that
want to recognize them.

Move ScalarEvolution's logic for expanding array and vector sizeof
expressions into an element count times the element size, to expose
the multiplication to subsequent folding, into the regular constant
folder.

llvm-svn: 94737
2010-01-28 02:15:55 +00:00
Chris Lattner c968f4475e add target hooks for emitting random gunk before and after the function body.
llvm-svn: 94732
2010-01-28 01:58:58 +00:00
Evan Cheng 346af88396 Fix a bug introduced by r94490 where it created a X86ISD::CMP whose output type is different from its inputs.
This fixes PR6146.

llvm-svn: 94731
2010-01-28 01:57:22 +00:00
Chris Lattner 125c118cd8 switch blackfin to the default runOnMachineFunction
llvm-svn: 94729
2010-01-28 01:54:33 +00:00
Chris Lattner b662b7c801 eliminate a now-useless class.
llvm-svn: 94728
2010-01-28 01:50:22 +00:00
Chris Lattner fd97a3369e Switch MSP430, SPU, Sparc, and SystemZ to use EmitFunctionBody().
Diffstat:
 6 files changed, 30 insertions(+), 284 deletions(-)

llvm-svn: 94727
2010-01-28 01:48:52 +00:00
Jim Grosbach 54c0530834 Update of 94055 to track the IR level call site information via an intrinsic.
This allows code gen and the exception table writer to cooperate to make sure
landing pads are associated with the correct invoke locations.

llvm-svn: 94726
2010-01-28 01:45:32 +00:00
Chris Lattner 73de5fbfc3 Give AsmPrinter the most common expected implementation of
runOnMachineFunction, and switch PPC to use EmitFunctionBody.
The two ppc asmprinters now don't heave to define 
runOnMachineFunction.

llvm-svn: 94722
2010-01-28 01:28:58 +00:00
Chris Lattner fa1f67ea38 switch ARM to EmitFunctionBody().
llvm-svn: 94719
2010-01-28 01:10:34 +00:00
Chris Lattner 565896b9eb emit a 0 byte instead of a noop if a function is empty on darwin.
"0" is nice and target independent.

llvm-svn: 94718
2010-01-28 01:06:32 +00:00
Chris Lattner 94a946cac4 Remove the argument from EmitJumpTableInfo, because it doesn't need it.
Move the X86 implementation of function body emission up to 
AsmPrinter::EmitFunctionBody, which works by calling the virtual
EmitInstruction method.

llvm-svn: 94716
2010-01-28 01:02:27 +00:00
Chris Lattner 2b796241a7 Drop the argument to AsmPrinter::EmitConstantPool and make it virtual.
Overload it in the ARM backend to do nothing, since is does insane
constant pool emission.

llvm-svn: 94708
2010-01-28 00:19:24 +00:00
Chris Lattner 80108921be don't emit constant pools twice.
llvm-svn: 94706
2010-01-28 00:15:18 +00:00
Chris Lattner cd99546b03 rename printVisibility to EmitVisibility and make it private,
constify EmitLinkage.

llvm-svn: 94705
2010-01-28 00:05:10 +00:00