Switch the code generator (except the JIT) onto the new DebugLoc
representation. This eliminates the 'DILocation' MDNodes for
file/line/col tuples from -O0 -g codegen.

This remove the old DebugLoc

Switch the code generator (except the JIT) onto the new DebugLoc
representation. This eliminates the 'DILocation' MDNodes for
file/line/col tuples from -O0 -g codegen.

This remove the old DebugLoc class, making it a typedef for DebugLoc,
I'll rename NewDebugLoc next.

I didn't update the JIT to use the new apis, so it will continue to
work, but be as slow as before. Someone should eventually do this
or, better yet, rip out the JIT debug info stuff and build the JIT
on top of MC.

llvm-svn: 100209

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Revert r100191 since it breaks objc in clang

llvm-svn: 100199

Reapply address space patch after fixing an issue in MemCopyOptimizer.
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i3

Reapply address space patch after fixing an issue in MemCopyOptimizer.
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)

llvm-svn: 100191

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add new apis for getting/setting !dbg metadata on
instructions. In addition to being a convenience,
they are faster than the old apis, particularly when
not going from an MDKindID like people shoul

add new apis for getting/setting !dbg metadata on
instructions. In addition to being a convenience,
they are faster than the old apis, particularly when
not going from an MDKindID like people should be
doing.

llvm-svn: 99982

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Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots.

llvm-svn: 99948

Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update o

Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.

llvm-svn: 99928

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Fix PR4975. Avoid referencing empty vector.

llvm-svn: 99840

Pool allocate SDDbgValue nodes.

llvm-svn: 99836

Change how dbg_value sdnodes are converted into machine instructions. Their placement should be determined by the relative order of incoming llvm instructions. The scheduler will now use the SDNode o

Change how dbg_value sdnodes are converted into machine instructions. Their placement should be determined by the relative order of incoming llvm instructions. The scheduler will now use the SDNode ordering information to determine where to insert them. A dbg_value instruction is inserted after the instruction with the last highest source order and before the instruction with the next highest source order. It will optimize the placement by inserting right after the instruction that produces the value if they have consecutive order numbers.

Here is a theoretical example that illustrates why the placement is important.

tmp1 =
store tmp1 -> x
...
tmp2 = add ...
...
call
...
store tmp2 -> x

Now mem2reg comes along:

tmp1 =
dbg_value (tmp1 -> x)
...
tmp2 = add ...
...
call
...
dbg_value (tmp2 -> x)

When the debugger examine the value of x after the add instruction but before the call, it should have the value of tmp1.

Furthermore, for dbg_value's that reference constants, they should not be emitted at the beginning of the block (since they do not have "producers").

This patch also cleans up how SDISel manages DbgValue nodes. It allow a SDNode to be referenced by multiple SDDbgValue nodes. When a SDNode is deleted, it uses the information to find the SDDbgValues and invalidate them. They are not deleted until the corresponding SelectionDAG is destroyed.

llvm-svn: 99469

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Fix pr6543: svn r88806 changed MachineJumpTableInfo::getJumpTableIndex() to
always create a new jump table. The intention was to avoid merging jump
tables in SelectionDAGBuilder, and to wait for the

Fix pr6543: svn r88806 changed MachineJumpTableInfo::getJumpTableIndex() to
always create a new jump table. The intention was to avoid merging jump
tables in SelectionDAGBuilder, and to wait for the branch folding pass to
merge tables. Unfortunately, the same getJumpTableIndex() method is also
used to merge tables in branch folding, so as a result of this change
branch tables are never merged. Worse, the branch folding code is expecting
getJumpTableIndex to always return the index of an existing table, but with
this change, it never does so. In at least some cases, e.g., pr6543, this
creates references to non-existent tables.

I've fixed the problem by adding a new createJumpTableIndex function, which
will always create a new table, and I've changed getJumpTableIndex to only
look at existing tables.

llvm-svn: 98845

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Fix comment.

llvm-svn: 98830

Debug info intrinsic does not intefer during tail call optimization.

llvm-svn: 98778

reapply r98656 unmodified, which exposed the asmprinter not
handling constant unions.

llvm-svn: 98680

Revert r98656, its breaking all over the place.

llvm-svn: 98662

improve support for uniontype and ConstantUnion, patch by Tim Northover!

llvm-svn: 98656

Create SDDbgValue for dbg_value intrinsics and remember its connections with DAG nodes.
This is a work in progress. Patch by Dale Johannesen!

llvm-svn: 98568

Turn calls to copysignl into an FCOPYSIGN node. Handle FCOPYSIGN nodes
with ppc_f128 type by having the type legalizer turn these back into a
call to copysignl.

llvm-svn: 98514

Add DAG nodes to represent FP16 <-> FP32 intrinsics

llvm-svn: 98500

get MMI out of the label uniquing business, just go to MCContext
to get unique assembler temporary labels.

llvm-svn: 98489

change the LabelSDNode to be EHLabelSDNode and make it hold
an MCSymbol. Make the EH_LABEL MachineInstr hold its label
with an MCSymbol instead of ID. Fix a bug in MMI.cpp which
would return labels

change the LabelSDNode to be EHLabelSDNode and make it hold
an MCSymbol. Make the EH_LABEL MachineInstr hold its label
with an MCSymbol instead of ID. Fix a bug in MMI.cpp which
would return labels named "Label4" instead of "label4".

llvm-svn: 98463

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change EH related stuff (other than EH_LABEL) to use MCSymbol
instead of label ID's. This cleans up and regularizes a bunch
of code and makes way for future progress.

Unfortunately, this pointed o

change EH related stuff (other than EH_LABEL) to use MCSymbol
instead of label ID's. This cleans up and regularizes a bunch
of code and makes way for future progress.

Unfortunately, this pointed out to me that JITDwarfEmitter.cpp
is largely copy and paste from DwarfException/MachineModuleInfo
and other places. This is very sad and disturbing. :(

One major change here is that TidyLandingPads moved from being
called in DwarfException::BeginFunction to being called in
DwarfException::EndFunction. There should not be any
functionality change from doing this, but I'm not an EH expert.

llvm-svn: 98459

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Revert turning copysignl into a COPYSIGN node for the moment:
ppc calls copysignl with a 128 bit ppc long double, resulting
in a node that the type legalizer doesn't know how to expand.

llvm-svn: 98

Revert turning copysignl into a COPYSIGN node for the moment:
ppc calls copysignl with a 128 bit ppc long double, resulting
in a node that the type legalizer doesn't know how to expand.

llvm-svn: 98357

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Now that it's supported, turn copysignl into a COPYSIGN node.

llvm-svn: 98348

fix PR6577, a bug in sdbuilder lowering select instructions
whose true value was not Val#0.

llvm-svn: 98336

In case of tail call size of Ins and InVals may not match.

llvm-svn: 98277