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2008-10-15fold compare of null pointer into compare with 0.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57553 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Some minor cleanups:Chris Lattner
1. Compute action in X86SelectSelect based on MVT instead of type. 2. Use TLI.getValueType(..) instead of MVT::getVT(..) because the former handles pointers and the later doesn't. 3. Don't pass TLI into isTypeLegal, since it already has access to it as an ivar. #2 gives fast isel some minor new functionality: handling load/stores of pointers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57552 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Use switch on VT instead of Type* comparisons.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57551 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Use X86FastEmitCompare for FCMP_OEQ and FCMP_UNE: it doesn'tChris Lattner
change the generated code, but makes the code simpler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57550 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15refactor compare emission out into a new X86FastEmitCompare method,Chris Lattner
which makes it easy to share the compare/imm folding logic with 'setcc'. This shaves a bunch of instructions off the common select case, which happens a lot in llvm-gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57549 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Fold immediates into compares when possible, producing "cmp $4, %eax" instead ofChris Lattner
loading 4 into a register and then doing the compare. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57548 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15more minor refactoring of X86SelectBranch, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57547 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15factor buildmi calls in X86SelectBranchChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57546 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15factor some more BuildMI's in X86SelectCmpChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57545 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15factor some BuildMI calls, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57544 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Adjust whitespace in debug messages to be more consistentDan Gohman
with other debug messages. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57543 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15- Add target lowering hooks that specify which setcc conditions are illegal,Evan Cheng
i.e. conditions that cannot be checked with a single instruction. For example, SETONE and SETUEQ on x86. - Teach legalizer to implement *illegal* setcc as a and / or of a number of legal setcc nodes. For now, only implement FP conditions. e.g. SETONE is implemented as SETO & SETNE, SETUEQ is SETUO | SETEQ. - Move x86 target over. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57542 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14FastISel support for exception-handling constructs.Dan Gohman
- Move the EH landing-pad code and adjust it so that it works with FastISel as well as with SDISel. - Add FastISel support for @llvm.eh.exception and @llvm.eh.selector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57539 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14Prevent assert when using '"' in names (via hexadecimal).Daniel Dunbar
Update LangRef to mention \xx quoting in names. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57538 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14Change getLLVMName to use raw_ostream & PrintLLVMName.Daniel Dunbar
- Avoids duplicated quotification code. - Remove QuoteNameIfNeeded. - No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57537 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14Accept -march=i586, because gcc does (a synonymDale Johannesen
for pentium). Fixes gcc.target/i386/20000720-1.c gcc.target/i386/pr26826.c git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57528 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14Rename LoadX to LoadExt.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57526 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14Update ARM Insn encoding to get endian-ness to match the documentation (31-0 ↵Jim Grosbach
left to right) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57524 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14Fix command-line option printing to print two spaces where needed,Dan Gohman
instead of requiring all "short description" strings to begin with two spaces. This makes these strings less mysterious, and it fixes some cases where short description strings mistakenly did not begin with two spaces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57521 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14Combine (fcmp cc0 x, y) | (fcmp cc1 x, y) into a single fcmp when possible.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57515 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14- Somehow I forgot about one / une.Evan Cheng
- Renumber fcmp predicates to match their icmp counterparts. - Try swapping operands to expose more optimization opportunities. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57513 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14Fix indentation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57508 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14Optimize anding of two fcmp into a single fcmp if the operands are the same. ↵Evan Cheng
e.g. uno && ueq -> ueq ord && olt -> olt ord && ueq -> oeq git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57507 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14little optimization: reuse getPointerToGlobalIfAvailable(CGV) value in ↵Nuno Lopes
emitGlobals() git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57484 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-13When doing the very-late shift-and address-mode optimization,Dan Gohman
create a new DAG node to represent the new shift to keep the DAG consistent, even though it'll almost always be folded into the address. If a user of the resulting address has multiple uses, the nodes may get revisited by a later MatchAddress call, in which case DAG inconsistencies do matter. This fixes PR2849. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57465 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-13FIX PR2794. Make sure SIGN_EXTEND_INREG nodes introduced by ↵Evan Cheng
LegalizeSetCCOperands are leglized. Patch by Richard Pennington. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57460 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-13Also update sub-register intervals after a trivial computation is rematt'ed ↵Evan Cheng
for a copy instruction. PR2775. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57458 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-13Make InstructionCombining::getBitCastOperand() recognize GEP instructions andMatthijs Kooijman
constant expression with all zero indices as being the same as a bitcast. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57442 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-13 * Make TargetLowering not crash when TargetMachine::getTargetAsmInfo() returnsMatthijs Kooijman
null. This assumes that any target that does not have AsmInfo, does not support "LocAndDot". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57438 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-13Make MachineFunction not crash when TargetMachine::getRegisterInfo() returnsMatthijs Kooijman
NULL, but just hide some debug output then. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57437 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-13do not use deprecated interfacesGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57433 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-13Disallow the construction of SCEVs with could-not-compute operands. Catch CNCsNick Lewycky
returned by BinomialCoefficient and don't try to operate with them. This replaces the previous fix for PR2857. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57431 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-13calls can be supported.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57428 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Change TAG_ names to DW_TAG for gcc (testsuite) compatibility.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57425 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Fix a bug in live-in detection that caused lost-copy problems to show up.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57424 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Update size of inst correctly with segment override.Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57414 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Add special-case code to allow null-guards on calls to malloc.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57413 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Make Escape Analysis work for any pointer.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57412 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Change Dwarf comments starting with AT_ to DW_AT_ toDale Johannesen
match gcc. Helps with the testsuite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57410 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Fix crashes and infinite loops.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57408 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-12Duncan convinced me that it's not possible to transform control-based ↵Owen Anderson
escapes into data-based ones. Just be conservative when analyzing control-based escapes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57400 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-11fix typoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57388 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-11Fix PR2697 by rewriting the '(X / pos) op neg' logic. This also changesChris Lattner
a couple other cases for clarity, but shouldn't affect correctness. Patch by Eli Friedman! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57387 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-11Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's asChris Lattner
parameters instead of raw Constants. This prevents the constants from being selected by the isel pass, fixing PR2735. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57385 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-11rearrange some code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57384 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-11Fix comment typo.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57381 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-11Add ability to override segment (mostly for code emitter purposes).Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57380 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-11Unbreak DbgStopPointInst::getFileName().Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57373 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-11simplify comparisonChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-10Fix SSE4.1 roundss, roundsd. While the instructions have Dale Johannesen
the same pattern as roundpd/roundps, the Intel compiler builtins do not: rounds* has an extra operand. Fixes gcc.target/i386/sse4_1-rounds[sd]-[1234].c git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57370 91177308-0d34-0410-b5e6-96231b3b80d8