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* Now that DeadMachineInstructionElim is basically workingDan Gohman2008-09-231-6/+0
| | | | | | | correctly, it's not necessary to explicitly remove registers from their use-def lists. llvm-svn: 56509
* Arrange for FastISel code to have access to the MachineModuleInfoDan Gohman2008-09-235-8/+18
| | | | | | object. This will be needed to support debug info. llvm-svn: 56508
* Track local physical register liveness. This is not the mostDan Gohman2008-09-231-3/+53
| | | | | | | efficient implementation possible, but it's pretty simple and good enough for the time being. llvm-svn: 56504
* regenerateChris Lattner2008-09-233-1284/+1286
| | | | llvm-svn: 56502
* allow inreg on the result of a functionChris Lattner2008-09-231-0/+1
| | | | llvm-svn: 56501
* Replace the LiveRegs SmallSet with a simple counter that keepsDan Gohman2008-09-232-23/+29
| | | | | | | track of the number of live registers, which is all the set was being used for. llvm-svn: 56498
* Fix these enums' starting values to reflect the way thatDan Gohman2008-09-239-9/+9
| | | | | | instruction opcodes are now numbered. No functionality change. llvm-svn: 56497
* Delete an unused function.Dan Gohman2008-09-231-10/+0
| | | | llvm-svn: 56495
* Move the code for initializing the global base reg out ofDan Gohman2008-09-233-29/+43
| | | | | | | X86ISelDAGToDAG.cpp and into X86InstrInfo.cpp. This will allow it to be reused by FastISel. llvm-svn: 56494
* Rationalize the names of passes that print information:Duncan Sands2008-09-233-6/+6
| | | | | | | | | | | | | | | | | -callgraph => print-callgraph -callscc => print-callgraph-sccs -cfgscc => print-cfg-sccs -externalfnconstants => print-externalfnconstants -print => print-function -print-alias-sets (no change) -print-callgraph => dot-callgraph -print-cfg => dot-cfg -print-cfg-only => dot-cfg-only -print-dom-info (no change) -printm => print-module -printusedtypes => print-used-types llvm-svn: 56487
* Fix indendation.Matthijs Kooijman2008-09-231-4/+4
| | | | llvm-svn: 56486
* Add initial support for inserting last minute copies.Owen Anderson2008-09-231-28/+53
| | | | llvm-svn: 56485
* Support x86 specific inline asm modifier 'J'.Evan Cheng2008-09-221-0/+8
| | | | llvm-svn: 56483
* Fix the alignment of loads from constant pool entries when theDan Gohman2008-09-222-1/+7
| | | | | | | load address has an offset from the base of the constant pool entry. llvm-svn: 56479
* Add hasNote() to check note associated with a function.Devang Patel2008-09-228-22/+31
| | | | llvm-svn: 56477
* Livestacks really does preserve everything.Evan Cheng2008-09-221-2/+1
| | | | llvm-svn: 56476
* Instead of setPreservesAll, just mark them preseving machine loop info and ↵Evan Cheng2008-09-227-7/+14
| | | | | | machine dominators. llvm-svn: 56475
* Significant improvements to the logic for merging live intervals. This code ↵Owen Anderson2008-09-221-15/+53
| | | | | | | | | can't just use LI::MergeValueAsValue, as its behavior in the presence of overlapping ranges isn't what StrongPHIElimination wants. llvm-svn: 56472
* Make log, log2, log10, exp, exp2 use Expand byDale Johannesen2008-09-228-71/+12
| | | | | | default. llvm-svn: 56471
* Mark several codegen passes as preserving all analysis.Evan Cheng2008-09-229-8/+31
| | | | llvm-svn: 56469
* More refactoring. Yawn.Dale Johannesen2008-09-221-126/+43
| | | | llvm-svn: 56468
* Refactor FP intrinisic setup. Per review feedback.Dale Johannesen2008-09-221-117/+28
| | | | llvm-svn: 56456
* CMake build system: support for parallel builds.Oscar Fuentes2008-09-222-1/+6
| | | | llvm-svn: 56453
* Per review feedback: Only performEvan Cheng2008-09-221-39/+27
| | | | | | | (srl x, (trunc (and y, c))) -> (srl x, (and (trunc y), c)) etc. when both "trunc" and "and" have single uses. llvm-svn: 56452
* Change the calling convention used when tail call optimization is enabled ↵Arnold Schwaighofer2008-09-223-22/+2
| | | | | | from CC_X86_32_TailCall to CC_X86_32_FastCC. llvm-svn: 56436
* Initial support for the CMake build system.Oscar Fuentes2008-09-2225-0/+427
| | | | llvm-svn: 56419
* Add helper function to get a 32-bit floating point constant. No ↵Bill Wendling2008-09-221-189/+106
| | | | | | functionality change. llvm-svn: 56418
* Fold immediates into X86 shifts with fast isel. This generates:Chris Lattner2008-09-211-15/+24
| | | | | | | | | | | | | sarl $3, %ecx instead of: movl $3, %ecx sarl %cl, %edx This shrinks fast isel 176.gcc by about 2000 instructions (.3%) llvm-svn: 56413
* Factor out code into HandleVirtRegDef, for consistency withDan Gohman2008-09-211-13/+12
| | | | | | | Handle{Virt,Phys}Reg{Def,Use}. Remove a redundant check for register zero, and redundant checks for isPhysicalRegister. llvm-svn: 56412
* Instead of building a list and sorting it just to find a maximum element,Dan Gohman2008-09-211-26/+9
| | | | | | compute the maximum element directly. llvm-svn: 56411
* Fetch the starting index of the block when assigning intervals. This gets ↵Owen Anderson2008-09-211-2/+2
| | | | | | | | live-in indices correct in the presence of things like EH labels. llvm-svn: 56410
* don't print GlobalAddressSDNode's with an offset of zero as "foo0".Chris Lattner2008-09-211-5/+6
| | | | llvm-svn: 56399
* add a noteChris Lattner2008-09-201-1/+32
| | | | llvm-svn: 56391
* Implement review feedback from Devang: make useDuncan Sands2008-09-201-26/+11
| | | | | | of mayReadFromMemory and mayWriteToMemory. llvm-svn: 56387
* Teach coalescer about earlyclobber bits.Dale Johannesen2008-09-202-2/+17
| | | | | | Check bits for preferred register. llvm-svn: 56384
* Fix PR2808. When regalloc runs out of register, it spill a physical register ↵Evan Cheng2008-09-201-1/+4
| | | | | | around the live interval being allocated. Do not continue to try to spill another register, just grab the physical register and move on. llvm-svn: 56381
* No need to print function stubs for Mac OS X 10.5 and up. Linker will handle it.Evan Cheng2008-09-201-3/+10
| | | | llvm-svn: 56378
* 80 column violation.Evan Cheng2008-09-201-4/+8
| | | | llvm-svn: 56377
* Fix a FastISel GlobalVariable CSE bug.Dan Gohman2008-09-191-2/+4
| | | | llvm-svn: 56376
* Continue after removing the current MI.Evan Cheng2008-09-191-0/+1
| | | | llvm-svn: 56372
* Refactor X86SelectConstAddr, folding it into X86SelectAddress. ThisDan Gohman2008-09-192-101/+81
| | | | | | | results in better code for globals. Also, unbreak the local CSE for GlobalValue stub loads. llvm-svn: 56371
* Make earlyclobber stuff work when virtual regsDale Johannesen2008-09-191-8/+26
| | | | | | have previously been assigned conflicting physreg. llvm-svn: 56364
* Re-materalized definition instructions may be dead. Whack them.Evan Cheng2008-09-192-7/+33
| | | | llvm-svn: 56352
* backing out my last commit, it was not intended to go on the trunkGabor Greif2008-09-193-510/+11
| | | | llvm-svn: 56349
* first shot at removing Use::ValGabor Greif2008-09-193-11/+510
| | | | | | untested, Use::swap() is definitely not done yet llvm-svn: 56348
* Remove the MarkModRef pass (use AddReadAttrs instead).Duncan Sands2008-09-191-69/+0
| | | | | | | | Unfortunately this means removing one regression test of GlobalsModRef because I couldn't work out how to perform it without MarkModRef. llvm-svn: 56342
* Add a new pass AddReadAttrs which works out which functionsDuncan Sands2008-09-191-0/+135
| | | | | | | | | can get the readnone/readonly attributes, and gives them it. The plan is to remove markmodref (which did the same thing by querying GlobalsModRef) and delete the analogous functionality from GlobalsModRef. llvm-svn: 56341
* Remove AsmThatEarlyClobber etc. from LiveIntervalAnalysisDale Johannesen2008-09-193-73/+79
| | | | | | | and redo as linked list walk. Logic moved into RA. Per review feedback. llvm-svn: 56326
* splitLoop does not handle split condition EQ.Devang Patel2008-09-181-0/+6
| | | | | | Fixes PR 2805 llvm-svn: 56321
* Address-mode folding for X86FastISel. It's pretty basic, but itDan Gohman2008-09-181-18/+95
| | | | | | | | catches a fair number of common cases. Note that this currently causes Fast-ISel to leave behind lots of dead instructions. Those will be dealt with in subsequent commits. llvm-svn: 56320
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