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* Make temporaries explicit to avoid prematureDale Johannesen2007-09-264-5/+14
| | | | | | | | destruction of compiler-created ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42383 91177308-0d34-0410-b5e6-96231b3b80d8
* - Move getPhysicalRegisterRegClass() from ScheduleDAG to MRegisterInfo.Evan Cheng2007-09-263-89/+206
| | | | | | | | - Added ability to emit cross class register copies to the BBRU scheduler. - More aggressive backtracking. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42375 91177308-0d34-0410-b5e6-96231b3b80d8
* Whitespace and compiler warning cleanup.Neil Booth2007-09-261-76/+91
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42373 91177308-0d34-0410-b5e6-96231b3b80d8
* - Added MRegisterInfo::getCrossCopyRegClass() hook. For register classes ↵Evan Cheng2007-09-262-0/+33
| | | | | | | | | where reg to reg copies are not possible, this returns another register class which registers in the specified register class can be copied to (and copy back from). - X86 copyRegToReg() now supports copying between EFLAGS and GR32 / GR64 registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42372 91177308-0d34-0410-b5e6-96231b3b80d8
* Some assemblers do not recognize aliases pushfd, pushfq, popfd, and popfq. ↵Evan Cheng2007-09-262-4/+4
| | | | | | Just emit them as pushf and popf. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42371 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable codegen for long double abs, sin, cosDale Johannesen2007-09-262-3/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42368 91177308-0d34-0410-b5e6-96231b3b80d8
* Added C and Ocaml bindings for functions, basic blocks, and Gordon Henriksen2007-09-261-9/+453
| | | | | | | | | | instruction creation. No support yet for instruction introspection. Also eliminated allocas from the Ocaml bindings for portability, and avoided unnecessary casts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42367 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix f80 UNDEF.Dale Johannesen2007-09-261-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42359 91177308-0d34-0410-b5e6-96231b3b80d8
* Typos: POPQ -> POPFQ, POPD -> POPFD.Evan Cheng2007-09-262-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42348 91177308-0d34-0410-b5e6-96231b3b80d8
* move PR1160 here.Chris Lattner2007-09-261-0/+31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42347 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow copyRegToReg to emit cross register classes copies.Evan Cheng2007-09-2620-60/+113
| | | | | | | Tested with "make check"! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42346 91177308-0d34-0410-b5e6-96231b3b80d8
* move PR1264 here.Chris Lattner2007-09-261-1/+28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42345 91177308-0d34-0410-b5e6-96231b3b80d8
* Add pushf{d|q}, popf{d|q} to push and pop EFLAGS register.Evan Cheng2007-09-262-4/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42335 91177308-0d34-0410-b5e6-96231b3b80d8
* translateX86CC updates the last two operands.Evan Cheng2007-09-261-2/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42333 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly restore stack pointer after realignment in main() on Cygwin/Mingw32Anton Korobeynikov2007-09-261-1/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42332 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove no-longer-used variable.Dale Johannesen2007-09-251-3/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42329 91177308-0d34-0410-b5e6-96231b3b80d8
* Make APFloat->int conversions deterministic even inDale Johannesen2007-09-252-7/+33
| | | | | | | cases with undefined behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42328 91177308-0d34-0410-b5e6-96231b3b80d8
* Missing load / store folding entries.Evan Cheng2007-09-251-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42323 91177308-0d34-0410-b5e6-96231b3b80d8
* Partly revert invalid r41774Anton Korobeynikov2007-09-251-0/+20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42322 91177308-0d34-0410-b5e6-96231b3b80d8
* More explicit keywords.Dan Gohman2007-09-257-9/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42316 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a newline to the end of this file.Duncan Sands2007-09-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42314 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo in a comment.Dan Gohman2007-09-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42313 91177308-0d34-0410-b5e6-96231b3b80d8
* New style x87 cmp instructions.Evan Cheng2007-09-252-0/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42312 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle multiple induction variables.Devang Patel2007-09-251-7/+14
| | | | | | | This fixes PR714. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42309 91177308-0d34-0410-b5e6-96231b3b80d8
* When both x/y and x%y are needed (x and y both scalar integer), computeDan Gohman2007-09-253-25/+88
| | | | | | | | | | both results with a single div or idiv instruction. This uses new X86ISD nodes for DIV and IDIV which are introduced during the legalize phase so that the SelectionDAG's CSE can automatically eliminate redundant computations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42308 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not reserve DOM check for GetElementPtrInst.Devang Patel2007-09-251-21/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42306 91177308-0d34-0410-b5e6-96231b3b80d8
* doh.. Devang Patel2007-09-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42300 91177308-0d34-0410-b5e6-96231b3b80d8
* Add transformation to update loop interation space. Now,Devang Patel2007-09-251-7/+148
| | | | | | | | | | | | | | | | | for (i=A; i<N; i++) { if (i < X && i > Y) do_something(); } is transformed into U=min(N,X); L=max(A,Y); for (i=L;i<U;i++) do_somethihg(); git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42299 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix long double<->shorter FP type conversionsDale Johannesen2007-09-251-12/+29
| | | | | | | | of zero, infinity, and NaNs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42298 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand) andDan Gohman2007-09-252-7/+6
| | | | | | | | the check to see if the assembler supports .loc from X86TargetLowering into the superclass TargetLowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42297 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing end-of-file newlines.Duncan Sands2007-09-252-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42294 91177308-0d34-0410-b5e6-96231b3b80d8
* Added support for new condition code modeling scheme (i.e. physical register ↵Evan Cheng2007-09-259-45/+1409
| | | | | | | | | dependency). These are a bunch of instructions that are duplicated so the x86 backend can support both the old and new schemes at the same time. They will be deleted after all the kinks are worked out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42285 91177308-0d34-0410-b5e6-96231b3b80d8
* Added major new capabilities to scheduler (only BURR for now) to support ↵Evan Cheng2007-09-255-150/+559
| | | | | | physical register dependency. The BURR scheduler can now backtrace and duplicate instructions in order to avoid "expensive / impossible to copy" values (e.g. status flag EFLAGS for x86) from being clobbered. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42284 91177308-0d34-0410-b5e6-96231b3b80d8
* New temporary option -new-cc-modeling-scheme to test the new cc modeling scheme.Evan Cheng2007-09-251-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42283 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename keyword "modify" -> "implicit".Evan Cheng2007-09-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42282 91177308-0d34-0410-b5e6-96231b3b80d8
* When mixing SSE and x87 codegen, it's possible toDale Johannesen2007-09-241-29/+31
| | | | | | | | | | | | | | have situations where an SSE instruction turns into multiple blocks, with the live range of an x87 register crossing them. To do this correctly make sure we examine all blocks when inserting FP_REG_KILL. PR 1697. (This was exposed by my fix for PR 1681, but the same thing could happen mixing x87 long double with SSE.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42281 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't execute dump unless NDEBUG isn't defined.Bill Wendling2007-09-241-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42280 91177308-0d34-0410-b5e6-96231b3b80d8
* Comment fixupsDaniel Berlin2007-09-241-12/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42279 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support on x86 for having Legalize lower ISD::LOCATION to ISD::DEBUG_LOCDan Gohman2007-09-241-2/+7
| | | | | | | | instead of ISD::LABEL with a manual .debug_line entry when the assembler supports .file and .loc directives. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42278 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't emit .debug_line header data if there aren't any lines to put in it,Dan Gohman2007-09-241-0/+5
| | | | | | | such as will happen when .loc directives are used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42277 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the Asm->EOL() call for EmitDebugARanges outside the #ifdef forDan Gohman2007-09-241-1/+1
| | | | | | | consistency with the other currently empty sections. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42276 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for emitting .file directives to set up file numbers forDan Gohman2007-09-241-0/+14
| | | | | | | use with .loc directives. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42275 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge hasDotLoc and hasDotFile into hasDotLocAndDotFile since .loc and .fileDan Gohman2007-09-241-2/+1
| | | | | | | aren't really usable without each other. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42274 91177308-0d34-0410-b5e6-96231b3b80d8
* float->int conversion rounds toward 0. Duh.Dale Johannesen2007-09-241-1/+1
| | | | | | | | Fixes PR1698. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42273 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a routine for emitting .file directives, for setting upDan Gohman2007-09-241-0/+11
| | | | | | | file numbers to use with .loc directives. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42272 91177308-0d34-0410-b5e6-96231b3b80d8
* Added "LoadEffective" pattern to handle stack locations.Bruno Cardoso Lopes2007-09-243-6/+25
| | | | | | | Fixed some comments git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42271 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not promote null values because it may be unsafe to do so.Devang Patel2007-09-241-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42270 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement offline variable substitution in order to reduce memoryDaniel Berlin2007-09-241-91/+926
| | | | | | | | | | and time usage. Fixup operator == to make this work, and add a resize method to DenseMap so we can resize our hashtable once we know how big it should be. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42269 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the syntax for the .loc directive in preparation for using it.Dan Gohman2007-09-241-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42268 91177308-0d34-0410-b5e6-96231b3b80d8
* The code that used the StartLabelId label was removed, so remove theDan Gohman2007-09-241-7/+1
| | | | | | | code that creates the label too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42265 91177308-0d34-0410-b5e6-96231b3b80d8
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