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2008-10-16add some notes and a file to collect unimplemented features in theChris Lattner
x86 backend. These will all be answered with "patches welcome", so a PR doesn't help drive them along. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57630 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16mark some targets as experimental. Andrew, if you think that Alpha isChris Lattner
basically working, feel free to remove the tag. The other targets have really basic things that break them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57628 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Const-ify several TargetInstrInfo methods.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57622 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Remove an unused variable.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57621 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Fix the predicate for memop64 to be a regular load, not justDan Gohman
an unindexed load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57612 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15move PR1941 here.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57586 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15move PR1604 here.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57582 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15move PR1488 into this file.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57579 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Now that predicates can be composed, simplify several ofDan Gohman
the predicates by extending simple predicates to create more complex predicates instead of duplicating the logic for the simple predicates. This doesn't reduce much redundancy in DAGISelEmitter.cpp's generated source yet; that will require improvements to DAGISelEmitter.cpp's instruction sorting, to make it more effectively group nodes with similar predicates together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57565 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15add a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57557 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15add support for folding immediates into stores when they Chris Lattner
are due to argument passing in calls. This is significant because it hits all immediate arguments to calls on x86-32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57556 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15fold immediates into stores in simple cases, this produces diffs like Chris Lattner
this: - movl $0, %eax - movl %eax, _yy_n_chars + movl $0, _yy_n_chars git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57555 91177308-0d34-0410-b5e6-96231b3b80d8
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
2008-10-15- 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
2008-10-14Accept -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
2008-10-14Fix indentation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57508 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
2008-10-12Update 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
2008-10-11Change 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
2008-10-11Fix 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
2008-10-10Fix 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
2008-10-10Fix a thinko and unbreak sparc default CCAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57368 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-10Extend set of return registers on sparc until someone will implement MRV ↵Anton Korobeynikov
support there. At least, this will allow libgcc compile, however we are not ABI-compatible with stuff compiled with native gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57364 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-10Ignore extra 'r' modifier for nowAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57363 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-10Use expand for smul_lohi for nowAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57362 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-10Add rudimentary support for 'r' register operandAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57359 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-10CleanupAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57358 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-10Add rudimentary asmprinter support for printing inline asm operands for sparc.Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57346 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-10Add dummy 'm' inline asm constraint handler for Sparc. I'm not sure, whether ↵Anton Korobeynikov
it is correct, however :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57345 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-10CleanupAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57344 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-09Add a "loses information" return value to APFloat::convertDale Johannesen
and APFloat::convertToInteger. Restore return value to IEEE754. Adjust all users accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57329 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-09Rename APFloat::convertToAPInt to bitcastToAPInt toDale Johannesen
make it clearer what the function does. No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57325 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-09get CodeGen/Alpha/mul128.ll to work.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57318 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-08(re)Put const weak strings in appropriate section on Darwin.Dale Johannesen
g++dg/abi/key2.C git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57309 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-08Comment to be explicit that the enumeration values for CondCodes matter.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57295 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-08Use template to distinguish between function variants.Duncan Sands
GCC 4.4.0 gives an error on the "int" declaration for example saying that it has already been declared (using the "short" one). Using templates here allow the compiler to distinguish between the function to choose. Also, "llvm/Support/DataTypes.h" was not included, leading to error messages about not knowing "uint32_t" for example. Patch by Samuel Tardieu. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57292 91177308-0d34-0410-b5e6-96231b3b80d8
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