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2687 Commits

Author SHA1 Message Date
Dan Gohman
3c8f36fd03 Reapply r55191 and r55192. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55205 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 21:28:19 +00:00
Bill Wendling
449416deb6 Reverting r55190, r55191, and r55192. They broke the build with this error message: 
{standard input}:17:bad register name `%sil'
make[4]: *** [libgcc/./_addvsi3.o] Error 1
make[4]: *** Waiting for unfinished jobs....
{standard input}:23:bad register name `%dil'
{standard input}:28:bad register name `%dil'
make[4]: *** [libgcc/./_addvdi3.o] Error 1
{standard input}:18:bad register name `%sil'
make[4]: *** [libgcc/./_subvsi3.o] Error 1



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55200 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 20:51:05 +00:00
Dan Gohman
5ed3cbb753 Fix the InsertBranch call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55192 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 19:26:10 +00:00
Dan Gohman
e0182ec0e4 Support non-fallthrough unconditional branches in FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55191 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 19:21:41 +00:00
Dan Gohman
3b7753be2e Add FastISel support for PHINodes. Machine PHI nodes 
are not yet updated properly, but that's a separate
task.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55187 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 17:37:48 +00:00
Dan Gohman
22bb31103d Factor out the predicate check code from DAGISelEmitter.cpp 
and use it in FastISelEmitter.cpp, and make FastISel
subtarget aware. Among other things, this lets it work
properly on x86 targets that don't have SSE, where it
successfully selects x87 instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55156 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 00:20:26 +00:00
Dan Gohman
2bb1e3eede Add libcalls for the new rounding opcodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55133 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 18:38:14 +00:00
Dan Gohman
509e84fa71 Add libm-oriented ISD opcodes for rounding operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55130 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 17:55:02 +00:00
Dan Gohman
f93cf79505 Have FastISel skip the multiply by 1 for getelementptr on i8*. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55129 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 17:37:05 +00:00
Dan Gohman
7a0e6593d0 MVT::getMVT uses iPTR for pointer types, while we need the actual 
intptr_t type in this case. FastISel can now select simple
getelementptr instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55125 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 17:25:26 +00:00
Dan Gohman
ca84121596 Elements in DeadNodeSet are checked for use_empty() before they 
are actually deleted, so it's not necessary to remove re-used
nodes from the set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55123 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 16:24:54 +00:00
Dan Gohman
d5fe57d2f9 Basic fast-isel support for instructions with constant int operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55099 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 01:41:07 +00:00
Evan Cheng
2076aa800e Type of first GEP operand is always the same as the target pointer type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55097 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 01:19:11 +00:00
Dan Gohman
fd903944de Fix unused variable warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55089 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 23:53:10 +00:00
Evan Cheng
83785c8096 First cut, un-optimized (and untested) fast isel lowering of GetElementPtrInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55085 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 22:45:34 +00:00
Dan Gohman
f990b571c5 Simplify the BuildMI calls even more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55077 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 21:10:53 +00:00
Dan Gohman
bb466331e7 Simplify FastISel's constructor argument list, make the FastISel 
class hold a MachineRegisterInfo member, and make the
MachineBasicBlock be passed in to SelectInstructions rather
than the FastISel constructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55076 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 21:05:57 +00:00
Dan Gohman
2385852b5b Dump the instruction that foiled ISel even when -debug is not used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55075 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 20:47:32 +00:00
Dan Gohman
cb34cd7b5e Make more use of the BuildMI API. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55072 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:16:32 +00:00
Dan Gohman
4cbe0662ab Minor code reorganization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55071 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:10:48 +00:00
Dan Gohman
77ad79689d Minor whitespace cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55070 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:09:38 +00:00
Dan Gohman
b7864a9e23 Fix 80 column violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55069 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:09:02 +00:00
Evan Cheng
d420789301 Kill off SimpleBBISel, it's replaced by FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55067 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 17:50:32 +00:00
Dan Gohman
a267651b7e Disable DAGCombine's alignment inference in "fast" codegen mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55059 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 16:30:28 +00:00
Dan Gohman
b8d2f550b8 Change the FoldingSetNodeID usage for objects which carry 
alignment and volatility information, such as loads and
stores, to reduce the number of integer values added to
the FoldingSetNodeID.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55058 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 15:58:01 +00:00
Dan Gohman
c53ec49885 Use BitVector instead of std::vector<unsigned char>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55054 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 14:58:41 +00:00
Dan Gohman
7a30bc4e7c Avoid an empty-if-body warning in release builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55050 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 14:00:56 +00:00
Dan Gohman
e6798b757a Fix FastISel to recognize that the last block in the function does 
not have a fall-through successor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55033 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 01:17:01 +00:00
Dan Gohman
cc8430f742 Fix a leak in the FastISel code that Chris pointed out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55031 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:56:17 +00:00
Dan Gohman
3e697cfa97 Add support for running SelectionDAG if FastISel fails. This is under 
a command-line option, so that the default behavior is an abort, which
is useful for exposing code that isn't supported yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55028 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:47:54 +00:00
Dan Gohman
a7f2dff98e Fix FastISel to recognize unhandled operands, such as constants 
that aren't available as virtual registers (for now).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55026 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:35:17 +00:00
Dan Gohman
8014e86580 Add FastISel support for floating-point operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55021 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:23:20 +00:00
Dan Gohman
bdedd44773 Add FastISel support for several more binary operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55020 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:11:48 +00:00
Dan Gohman
78eca170e9 Add code to call FastISel, and a command-line option to enable it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55015 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 22:33:34 +00:00
Dan Gohman
6f2766d597 Support unconditional fall-through branches in FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55014 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 22:31:46 +00:00
Dan Gohman
8133a52eb5 Use the BuildMI overload that sets up a destination register 
instead of the one that doesn't and then adding it manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55006 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 20:46:54 +00:00
Dan Gohman
32155acb8a Handle the case where target-specific fastisel code doesn't have 
a desired opcode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55005 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 20:43:22 +00:00
Chris Lattner
65a7bd8b8e don't use the result of WriteTypeSymbolic or WriteAsOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54978 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 04:44:30 +00:00
Gordon Henriksen
5eca075b74 Rename some GC classes so that their roll will hopefully be clearer. 
In particular, Collector was confusing to implementors. Several
thought that this compile-time class was the place to implement
their runtime GC heap. Of course, it doesn't even exist at runtime.
Specifically, the renames are:

  Collector               -> GCStrategy
  CollectorMetadata       -> GCFunctionInfo
  CollectorModuleMetadata -> GCModuleInfo
  CollectorRegistry       -> GCRegistry
  Function::getCollector  -> getGC (setGC, hasGC, clearGC)

Several accessors and nested types have also been renamed to be
consistent. These changes should be obvious.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54899 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-17 18:44:35 +00:00
Gordon Henriksen
5a29c9eed1 Factor GC metadata table assembly generation out of Collector in preparation for splitting AsmPrinter into its own library. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54881 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-17 12:56:54 +00:00
Chris Lattner
fad86b003a Rework the routines that convert AP[S]Int into a string. Now, instead of 
returning an std::string by value, it fills in a SmallString/SmallVector
passed in.  This significantly reduces string thrashing in some cases.

More specifically, this:
 - Adds an operator<< and a print method for APInt that allows you to 
   directly send them to an ostream.
 - Reimplements APInt::toString to be much simpler and more efficient
   algorithmically in addition to not thrashing strings quite as much.

This speeds up llvm-dis on kc++ by 7%, and may also slightly speed up the
asmprinter.  This also fixes a bug I introduced into the asmwriter in a
previous patch w.r.t. alias printing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54873 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-17 07:19:36 +00:00
Dan Gohman
e285a74f7c Make FastISel's constructor protected, and give it a destructor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54793 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-14 21:51:29 +00:00
Dan Gohman
7f8613e5b8 Improve support for vector casts in LLVM IR and CodeGen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54784 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-14 20:04:46 +00:00
Dan Gohman
a60832b018 Fix a bogus srem rule - a negative value srem'd by a power-of-2 
can have a non-negative result; for example, -16%16 is 0. Also,
clarify the related comments. This fixes PR2670.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54767 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-13 23:12:35 +00:00
Dan Gohman
6ab6422f25 Allow SelectionDAG to create EXTRACT_VECTOR_ELT nodes with 
non-constant indices. Only a few of the peephole checks require
a constant index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54764 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-13 21:51:37 +00:00
Dan Gohman
b0cf29c5cf Initial checkin of the new "fast" instruction selection support. See 
the comments in FastISelEmitter.cpp for details on what this is.
This is currently experimental and unusable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54751 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-13 20:19:35 +00:00
Dan Gohman
925a7e8ed6 Rename SelectionDAGISel's FastISel to Fast, to begin to make 
room for the new FastISel instruction selection code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54749 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-13 19:47:40 +00:00
Dan Gohman
04f4f4f447 Correct the filename in the top-of-file comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54688 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-12 17:42:33 +00:00
Dan Gohman
8cea8ff34c Take the FrameOffset into account when computing the alignment 
of stack objects. This fixes PR2656.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54646 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-11 18:27:03 +00:00
Evan Cheng
381cb07544 Add skeleton of simple basic block instruction selector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54522 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-08 07:27:28 +00:00