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* fix a subtle bug I introduced in my refactoring, where we stopped preferringChris Lattner2010-10-081-24/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | the i8 versions of instructions in some cases. In test6, we started generating: cmpq $0, -8(%rsp) ## encoding: [0x48,0x81,0x7c,0x24,0xf8,0x00,0x00,0x00,0x00] ## <MCInst #478 CMP64mi32 ## <MCOperand Reg:114> ## <MCOperand Imm:1> ## <MCOperand Reg:0> ## <MCOperand Imm:-8> ## <MCOperand Reg:0> ## <MCOperand Imm:0>> instead of: cmpq $0, -8(%rsp) ## encoding: [0x48,0x83,0x7c,0x24,0xf8,0x00] ## <MCInst #479 CMP64mi8 ## <MCOperand Reg:114> ## <MCOperand Imm:1> ## <MCOperand Reg:0> ## <MCOperand Imm:-8> ## <MCOperand Reg:0> ## <MCOperand Imm:0>> Fix this and add some comments. llvm-svn: 116053
* reapply: Use the new TB_NOT_REVERSABLE flag instead of specialChris Lattner2010-10-083-38/+77
| | | | | | | | | reapply: reimplement the second half of the or/add optimization. We should now with no changes. Turns out that one missing "Defs = [EFLAGS]" can upset things a bit. llvm-svn: 116040
* reapply the patch reverted in r116033:Chris Lattner2010-10-084-65/+126
| | | | | | | | "Reimplement (part of) the or -> add optimization. Matching 'or' into 'add'" With a critical fix: the add pseudos clobber EFLAGS. llvm-svn: 116039
* Update CMake.Daniel Dunbar2010-10-081-1/+0
| | | | llvm-svn: 116034
* Revert "Reimplement (part of) the or -> add optimization. Matching 'or' intoDaniel Dunbar2010-10-084-126/+65
| | | | | | 'add'", which seems to have broken just about everything. llvm-svn: 116033
* Revert "Use the new TB_NOT_REVERSABLE flag instead of special ", which dependsDaniel Dunbar2010-10-081-26/+20
| | | | | | on r116007, which I am about to revert. llvm-svn: 116032
* Revert "reimplement the second half of the or/add optimization. We should now",Daniel Dunbar2010-10-083-51/+18
| | | | | | which depends on r116007, which I am about to revert. llvm-svn: 116031
* Move to thumb2 loads, fixes a problem with incoming registersEric Christopher2010-10-081-16/+13
| | | | | | | | as thumb1. Fixes lencod. llvm-svn: 116027
* reimplement the second half of the or/add optimization. We should nowChris Lattner2010-10-083-18/+51
| | | | | | | | | | only end up emitting LEA instead of OR. If we aren't able to promote something into an LEA, we should never be emitting it as an ADD. Add some testcases that we emit "or" in cases where we used to produce an "add". llvm-svn: 116026
* Enable binary encoding of some simple instructions.Jim Grosbach2010-10-081-0/+8
| | | | llvm-svn: 116022
* Make <target>CodeEmitter::getBinaryCodeForInstr() a const method.Jim Grosbach2010-10-084-8/+8
| | | | llvm-svn: 116018
* Use the new TB_NOT_REVERSABLE flag instead of special Chris Lattner2010-10-081-20/+26
| | | | | | casing FsMOVAPDrr/FsMOVAPSrr. llvm-svn: 116016
* simplify some map operations.Chris Lattner2010-10-072-16/+14
| | | | llvm-svn: 116014
* MC-COFF: Handle relaxation in COFF better. Fixes PR8321.Michael J. Spencer2010-10-071-1/+29
| | | | llvm-svn: 116013
* Delete the FormulaSorter class and inline its one method into itsDan Gohman2010-10-071-28/+10
| | | | | | | one user. This code will be restructured soon and FormulaSorter is getting in the way. llvm-svn: 116012
* Fix a spello.Dan Gohman2010-10-071-1/+1
| | | | llvm-svn: 116011
* Charge a formula for explicit multiplies on scaled registers too,Dan Gohman2010-10-071-3/+3
| | | | | | not just base registers. llvm-svn: 116010
* Use size_t for consistency.Dan Gohman2010-10-071-1/+1
| | | | llvm-svn: 116009
* When merging one use into another, transfer the offsets fromDan Gohman2010-10-071-0/+8
| | | | | | the old use to the new one. llvm-svn: 116008
* Reimplement (part of) the or -> add optimization. Matching 'or' into 'add'Chris Lattner2010-10-074-65/+126
| | | | | | | | | | | | | | | | | | | is general goodness because it allows ORs to be converted to LEA to avoid inserting copies. However, this is bad because it makes the generated .s file less obvious and gives valgrind heartburn (tons of false positives in bitfield code). While the general fix should be in valgrind, we can at least try to avoid emitting ADD instructions that *don't* get promoted to LEA. This is more work because it requires introducing pseudo instructions to represents "add that knows the bits are disjoint", but hey, people really love valgrind. This fixes this testcase: https://bugs.kde.org/show_bug.cgi?id=242137#c20 the add r/i cases are coming next. llvm-svn: 116007
* After splitting, the remaining LiveInterval may be fragmented into multipleJakob Stoklund Olesen2010-10-072-11/+134
| | | | | | | | | | | | | connected components. These components should be allocated different virtual registers because there is no reason for them to be allocated together. Add the ConnectedVNInfoEqClasses class to calculate the connected components, and move values to new LiveIntervals. Use it from SplitKit::rewrite by creating new virtual registers for the components. llvm-svn: 116006
* Fix LSR to keep the RegUseTracker up to date when combining users.Dan Gohman2010-10-071-8/+19
| | | | | | | | This doesn't usually matter, because the other heuristics usually succeed regardless, but it's good to keep the register use bookkeeping consistent. llvm-svn: 116005
* Remove LoopIndexSplit pass. It is neither maintained nor used by anyone.Devang Patel2010-10-072-1275/+0
| | | | llvm-svn: 116004
* Unbreak cmake build.John Thompson2010-10-071-0/+1
| | | | llvm-svn: 116003
* Code refactoring.Evan Cheng2010-10-072-104/+160
| | | | llvm-svn: 116002
* Reduce casting in various tables by defining the tableChris Lattner2010-10-072-27/+26
| | | | | | with the right types. llvm-svn: 116001
* simplify code: don't build up vector only to assert it is empty.Chris Lattner2010-10-071-8/+4
| | | | llvm-svn: 115997
* Now with fewer extraneous semicolons!Owen Anderson2010-10-07131-160/+161
| | | | llvm-svn: 115996
* Trivial MC code emitter shell. No instruction forms actually handled yet.Jim Grosbach2010-10-071-3/+19
| | | | llvm-svn: 115993
* Correctly check if a path is a directory. Fix by Brian Korver.Evan Cheng2010-10-071-1/+1
| | | | llvm-svn: 115991
* Provie a clearner interface so that FE can decide whether a function has ↵Devang Patel2010-10-071-6/+1
| | | | | | prototype or not. llvm-svn: 115988
* Include the auto-generated bits for machine encoding.Jim Grosbach2010-10-071-0/+20
| | | | llvm-svn: 115987
* Remember to promote load/store types for stack to register size.Eric Christopher2010-10-071-0/+6
| | | | llvm-svn: 115984
* convert test to use the existing classes that the multipatternsChris Lattner2010-10-071-99/+48
| | | | | | | | | use. Since TEST is completely different than all other binops, don't define a multipattern for it. This completes factorization of binops. llvm-svn: 115982
* convert cmp to use a multipatternChris Lattner2010-10-071-199/+181
| | | | llvm-svn: 115978
* Canonicalize X86ISD::MOVDDUP nodes to v2f64 to make sure all cases match. ↵Evan Cheng2010-10-072-16/+22
| | | | | | Also eliminate unneeded isel patterns. rdar://8520311 llvm-svn: 115977
* ARM instruction don't have instruction prefixes, so remove the helper functionsJim Grosbach2010-10-071-16/+1
| | | | | | for them from the MCCodeEmitter. llvm-svn: 115975
* Move tool_output_file into its own file.Dan Gohman2010-10-072-32/+43
| | | | llvm-svn: 115973
* Add initialization routines for Instrumentation.Owen Anderson2010-10-072-0/+32
| | | | llvm-svn: 115971
* reduce redundancy between pattern copies.Chris Lattner2010-10-071-49/+53
| | | | llvm-svn: 115968
* the opcode for BinOpMI/BinOpMI8 is always the same, remove the argument.Chris Lattner2010-10-071-19/+19
| | | | llvm-svn: 115967
* Improve comment.Owen Anderson2010-10-071-1/+1
| | | | llvm-svn: 115966
* Add initialization routines to InstCombine.Owen Anderson2010-10-071-0/+9
| | | | llvm-svn: 115965
* convert adc/sbb to a multipattern. Because the adde/sube nodes Chris Lattner2010-10-071-310/+150
| | | | | | | | | | | are not defined as returning EFLAGS (like add_flag and friends), the entire multipattern and several of the subclasses need to be cloned. This could be handled through better instantiation support in tblgen, but it isn't meta enough. llvm-svn: 115964
* Add initialization routines for VMCore.Owen Anderson2010-10-071-2/+14
| | | | llvm-svn: 115963
* Add initialization routines for Target.Owen Anderson2010-10-071-2/+12
| | | | llvm-svn: 115957
* Fix obvious mistake pointed out by Michael Spencer.Jakob Stoklund Olesen2010-10-071-1/+1
| | | | llvm-svn: 115952
* Print more loop info.Jakob Stoklund Olesen2010-10-071-0/+16
| | | | llvm-svn: 115951
* Print out MBB number when rewriting.Jakob Stoklund Olesen2010-10-071-1/+2
| | | | llvm-svn: 115950
* Add initialization routines for CodeGen.Owen Anderson2010-10-072-0/+60
| | | | llvm-svn: 115949
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