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Commit Graph

28 Commits

Author SHA1 Message Date
Dan Gohman
fef30fcd5e Reapply bottom-up fast-isel, with several fixes for x86-32:
- Check getBytesToPopOnReturn().
 - Eschew ST0 and ST1 for return values.
 - Fix the PIC base register initialization so that it doesn't ever
   fail to end up the top of the entry block.

llvm-svn: 108039
2010-07-10 09:00:22 +00:00
Bob Wilson
9e8c9204ef --- Reverse-merging r107947 into '.':
U    utils/TableGen/FastISelEmitter.cpp
--- Reverse-merging r107943 into '.':
U    test/CodeGen/X86/fast-isel.ll
U    test/CodeGen/X86/fast-isel-loads.ll
U    include/llvm/Target/TargetLowering.h
U    include/llvm/Support/PassNameParser.h
U    include/llvm/CodeGen/FunctionLoweringInfo.h
U    include/llvm/CodeGen/CallingConvLower.h
U    include/llvm/CodeGen/FastISel.h
U    include/llvm/CodeGen/SelectionDAGISel.h
U    lib/CodeGen/LLVMTargetMachine.cpp
U    lib/CodeGen/CallingConvLower.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
U    lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
U    lib/CodeGen/SelectionDAG/FastISel.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
U    lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
U    lib/CodeGen/SelectionDAG/InstrEmitter.cpp
U    lib/CodeGen/SelectionDAG/TargetLowering.cpp
U    lib/Target/XCore/XCoreISelLowering.cpp
U    lib/Target/XCore/XCoreISelLowering.h
U    lib/Target/X86/X86ISelLowering.cpp
U    lib/Target/X86/X86FastISel.cpp
U    lib/Target/X86/X86ISelLowering.h

llvm-svn: 107987
2010-07-09 16:37:18 +00:00
Dan Gohman
7e6e4dd058 Re-apply bottom-up fast-isel, with fixes. Be very careful to avoid emitting
a DBG_VALUE after a terminator, or emitting any instructions before an EH_LABEL.

llvm-svn: 107943
2010-07-09 00:39:23 +00:00
Dan Gohman
4dcc56a102 Revert 107840 107839 107813 107804 107800 107797 107791.
Debug info intrinsics win for now.

llvm-svn: 107850
2010-07-08 01:00:56 +00:00
Dan Gohman
d0caefa601 Implement bottom-up fast-isel. This has the advantage of not requiring
a separate DCE pass over MachineInstrs.

llvm-svn: 107804
2010-07-07 19:20:32 +00:00
Dan Gohman
a451b859f9 Merge a few fast-isel tests.
llvm-svn: 100860
2010-04-09 15:03:55 +00:00
Duncan Sands
395053f13a Revert commit 93204, since it causes the assembler to barf
on x86-64 linux with messages like this:
Error: Incorrect register `%r14' used with `l' suffix

llvm-svn: 93242
2010-01-12 17:46:16 +00:00
Evan Cheng
a93b476689 Add manual ISD::OR fastisel selection routines. TableGen is no longer autogen them after 93152 and 93191.
llvm-svn: 93204
2010-01-11 22:59:27 +00:00
Evan Cheng
bd938ebc90 Extend r93152 to work on OR r, r. If the source set bits are known not to overlap, then select as an ADD instead.
llvm-svn: 93191
2010-01-11 22:03:29 +00:00
Dan Gohman
df2896d609 Eliminate more uses of llvm-as and llvm-dis.
llvm-svn: 81290
2009-09-08 23:54:48 +00:00
Dan Gohman
60fae1b2a2 X86FastISel support for loading and storing values of type i1.
llvm-svn: 80186
2009-08-27 00:31:47 +00:00
Dan Gohman
5f6f8101d5 Split the Add, Sub, and Mul instruction opcodes into separate
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt

llvm-svn: 72897
2009-06-04 22:49:04 +00:00
Dan Gohman
5c4cd59ce4 Add a few more ptrtoint/inttoptr cast tests.
llvm-svn: 66989
2009-03-13 23:54:51 +00:00
Dan Gohman
fa0a3504ba Improve FastISel's handling of truncates to i1, and implement
ptrtoint and inttoptr in X86FastISel. These casts aren't always
handled in the generic FastISel code because X86 sometimes needs
custom code to do truncation and zero-extension.

llvm-svn: 66988
2009-03-13 23:53:06 +00:00
Evan Cheng
9c728a557d Load from GV stub should be locally CSE'd.
llvm-svn: 55763
2008-09-04 06:18:33 +00:00
Evan Cheng
942d55dd92 Add X86 target hook to implement load (even from GlobalAddress).
llvm-svn: 55693
2008-09-03 06:44:39 +00:00
Dale Johannesen
ae522b8463 This test crashes on non-x86 host; make SSE explicit.
Feel free to fix a better way!

llvm-svn: 55456
2008-08-28 01:51:09 +00:00
Dan Gohman
5e5f1c9e8f Basic FastISel support for floating-point constants.
llvm-svn: 55401
2008-08-27 01:09:54 +00:00
Owen Anderson
27491bbf2c Add support for fast isel of (integer) immediate materialization pattens, and use them to support
bitcast of constants in fast isel.

llvm-svn: 55325
2008-08-25 20:20:32 +00:00
Dan Gohman
a398d11527 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.

llvm-svn: 55156
2008-08-22 00:20:26 +00:00
Dan Gohman
4562b2bcfe Add -mattr=sse2 so this test doesn't fail on non-x86 hosts.
llvm-svn: 55145
2008-08-21 22:34:25 +00:00
Dan Gohman
42fa2945d3 getelementptr doesn't work on x86-64 yet, because it
has MOV64ri32 and no plain MOV64ri.

llvm-svn: 55126
2008-08-21 17:28:42 +00:00
Dan Gohman
f4269f7bea 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.

llvm-svn: 55125
2008-08-21 17:25:26 +00:00
Dan Gohman
a6e647dd7c Basic fast-isel support for instructions with constant int operands.
llvm-svn: 55099
2008-08-21 01:41:07 +00:00
Dan Gohman
bb28e0fc6d Add a -march line for this test, and run it on x86-64 too for fun.
llvm-svn: 55030
2008-08-20 00:56:07 +00:00
Dan Gohman
455abe7436 Add FastISel support for floating-point operations.
llvm-svn: 55021
2008-08-20 00:23:20 +00:00
Dan Gohman
ce636764de Add FastISel support for several more binary operators.
llvm-svn: 55020
2008-08-20 00:11:48 +00:00
Dan Gohman
d5c84e8061 Fast-isel is now *minimally* functional. Add a testcase to
demonstrate the extent of its capabilities. Note that it
only attempts to operate on one of the blocks in this
testcase.

llvm-svn: 55016
2008-08-19 22:37:59 +00:00