Dan Gohman
3b7753be2e
Add FastISel support for PHINodes. Machine PHI nodes
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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
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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
f93cf79505
Have FastISel skip the multiply by 1 for getelementptr on i8*.
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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
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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
d5fe57d2f9
Basic fast-isel support for instructions with constant int operands.
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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.
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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.
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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.
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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.
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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
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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
cb34cd7b5e
Make more use of the BuildMI API.
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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.
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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.
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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.
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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
Dan Gohman
e6798b757a
Fix FastISel to recognize that the last block in the function does
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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
a7f2dff98e
Fix FastISel to recognize unhandled operands, such as constants
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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.
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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.
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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
6f2766d597
Support unconditional fall-through branches in FastISel.
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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
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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
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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
Dan Gohman
e285a74f7c
Make FastISel's constructor protected, and give it a destructor.
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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
b0cf29c5cf
Initial checkin of the new "fast" instruction selection support. See
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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