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path: root/lib/Target/X86/X86CodeEmitter.cpp
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2010-04-21Handle a displacement location in 64-bit as an RIP-relative displacement. ItBill Wendling
fixes a bug (<rdar://problem/7880900>) in the JIT. This code wouldn't work: target triple = "x86_64-apple-darwin" define double @func(double %a) { %tmp1 = fmul double %a, 5.000000e-01 ; <double> [#uses=1] ret double %tmp1 } define i32 @main() nounwind { %1 = call double @func(double 4.770000e-04) ; <i64> [#uses=0] ret i32 0 } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101965 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Add const qualifiers to CodeGen's use of LLVM IR constructs.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07rename llvm::llvm_report_error -> llvm::report_fatal_errorChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100709 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14change the DBG_LABEL MachineInstr to always be createdChris Lattner
with an MCSymbol instead of an immediate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98481 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14switch GC_LABEL to use an MCSymbol operand instead of a label ID operand.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14change the LabelSDNode to be EHLabelSDNode and make it holdChris Lattner
an MCSymbol. Make the EH_LABEL MachineInstr hold its label with an MCSymbol instead of ID. Fix a bug in MMI.cpp which would return labels named "Label4" instead of "label4". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98463 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14change EH related stuff (other than EH_LABEL) to use MCSymbolChris Lattner
instead of label ID's. This cleans up and regularizes a bunch of code and makes way for future progress. Unfortunately, this pointed out to me that JITDwarfEmitter.cpp is largely copy and paste from DwarfException/MachineModuleInfo and other places. This is very sad and disturbing. :( One major change here is that TidyLandingPads moved from being called in DwarfException::BeginFunction to being called in DwarfException::EndFunction. There should not be any functionality change from doing this, but I'm not an EH expert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13rip out the 'heinous' x86 MCCodeEmitter implementation.Chris Lattner
We still have the templated X86 JIT emitter, *and* the almost-copy in X86InstrInfo for getting instruction sizes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96059 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12Remove special cases for [LM]FENCE, MONITOR and MWAIT fromChris Lattner
encoder and decoder by using new MRM_ forms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96048 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12give MCCodeEmitters access to the current MCContext.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96038 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12add a bunch of mod/rm encoding types for fixed mod/rm bytes.Chris Lattner
This will work better for the disassembler for modeling things like lfence/monitor/vmcall etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95960 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11dont' call getX86RegNum on X86::RIP, it doesn't like that. ThisChris Lattner
fixes the remaining x86-64 jit failures afaik. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95867 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11fix a really nasty bug I introduced in r95693: r12 (and r12d, Chris Lattner
r12b, etc) also encodes to a R/M value of 4, which is just as illegal as ESP/RSP for the non-sib version an address. This fixes x86-64 jit miscompilations of a bunch of programs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10MC: Switch MCFixup to just hold an MCExpr pointer instead of index into theDaniel Dunbar
MCInst it came from. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95767 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09MC/X86: Add a dummy implementation of MCFixup generation for hacky X86 ↵Daniel Dunbar
MCCodeEmitter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95709 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09MC: First cut at MCFixup, for getting fixup/relocation information out of an ↵Daniel Dunbar
MCCodeEmitter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95708 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09fix X86 encoder to output [disp] only addresses with no SIB byteChris Lattner
in X86-32 mode. This is still required in x86-64 mode to avoid forming [disp+rip] encoding. Rewrite the SIB byte decision logic to be actually understandable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95693 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09revert r95689: getX86RegNum(BaseReg) != N86::ESP isChris Lattner
a confusing idiom to check for ESP or RSP. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95690 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09simplify.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95689 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09move target-independent opcodes out of TargetInstrInfoChris Lattner
into TargetOpcodes.h. #include the new TargetOpcodes.h into MachineInstr. Add new inline accessors (like isPHI()) to MachineInstr, and start using them throughout the codebase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05wire up 64-bit MCCodeEmitter.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95438 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05move functions for decoding X86II values into the X86II namespace.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05change getSizeOfImm and getBaseOpcodeFor to just takeChris Lattner
TSFlags directly instead of a TargetInstrDesc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95405 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05Add a few more encodings, we can now encode all of:Chris Lattner
pushl %ebp movl %esp, %ebp movl $42, %eax popl %ebp ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95344 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04Disable external stubs for X86-32 and X86-64Evan Phoenix
Instruction selection for X86 now can choose an instruction sequence that will fit any address of any symbol, no matter the pointer width. X86-64 uses a mov+call-via-reg sequence for this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95323 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03enhance new encoder to support prefixes + RawFrm Chris Lattner
instructions with no operands. It can now handle define void @test2() nounwind { ret void } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95261 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03stub out a new X86 encoder, which can be tried withChris Lattner
-enable-new-x86-encoder until its stable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95256 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03rename createX86MCCodeEmitter to more accurately reflect what it creates.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95254 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02remove dead code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95144 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02MCCodeEmitter/X86: Handle tied registers better when converting MCInst ->Daniel Dunbar
MCMachineInstr. This also fixes handling of tied registers for MRMSrcMem instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95136 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26make MachineFunction keep track of its ID and make Chris Lattner
MachineFunctionAnalysis dole them out, instead of having AsmPrinter do both. Have the AsmPrinter::SetupMachineFunction method set the 'AsmPrinter::MF' variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05Change errs() to dbgs().David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92644 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23Remove ISD::DEBUG_LOC and ISD::DBG_LABEL, which are no longer used.Dan Gohman
Note that "hasDotLocAndDotFile"-style debug info was already broken; people wanting this functionality should implement it in the AsmPrinter/DwarfWriter code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89711 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-16Make X86-64 in the Large model always emit 64-bit calls.Jeffrey Yasskin
The large code model is documented at http://www.x86-64.org/documentation/abi.pdf and says that calls should assume their target doesn't live within the 32-bit pc-relative offset that fits in the call instruction. To do this, we turn off the global-address->target-global-address conversion in X86TargetLowering::LowerCall(). The first attempt at this broke the lazy JIT because it can separate the movabs(imm->reg) from the actual call instruction. The lazy JIT receives the address of the movabs as a relocation and needs to record the return address from the call; and then when that call happens, it needs to patch the movabs with the newly-compiled target. We could thread the call instruction into the relocation and record the movabs<->call mapping explicitly, but that seems to require at least as much new complication in the code generator as this change. To fix this, we make lazy functions _always_ go through a call stub. You'd think we'd only have to force lazy calls through a stub on difficult platforms, but that turns out to break indirect calls through a function pointer. The right fix for that is to distinguish between calls and address-of operations on uncompiled functions, but that's complex enough to leave for someone else to do. Another attempt at this defined a new CALL64i pseudo-instruction, which expanded to a 2-instruction sequence in the assembly output and was special-cased in the X86CodeEmitter's emitInstruction() function. That broke indirect calls in the same way as above. This patch also removes a hack forcing Darwin to the small code model. Without far-call-stubs, the small code model requires things of the JITMemoryManager that the DefaultJITMemoryManager can't provide. Thanks to echristo for lots of testing! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88984 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-07Make the need-stub variables accurate and consistent. In the case ofJeffrey Yasskin
MachineRelocations, "stub" always refers to a far-call stub or a load-a-faraway-global stub, so this patch adds "Far" to the term. (Other stubs are used for lazy compilation and dlsym address replacement.) The variable was also inconsistent between the positive and negative sense, and the positive sense ("NeedStub") was more demanding than is accurate (since a nearby-enough function can be called directly even if the platform often requires a stub). Since the negative sense causes double-negatives, I switched to "MayNeedFarStub" globally. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86363 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27apparently the X86 JIT isn't fully contextized, it is still using ↵Chris Lattner
getGlobalContext() :( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85252 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Remove includes of Support/Compiler.h that are no longer needed after theNick Lewycky
VISIBILITY_HIDDEN removal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85043 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.Nick Lewycky
Chris claims we should never have visibility_hidden inside any .cpp file but that's still not true even after this commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85042 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-12Fix PR5087, patch by Jakub Staszak!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83822 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-06Update processDebugLoc() so that it can be used to process debug info before ↵Devang Patel
and after printing an instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83363 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-28Introduce the TargetInstrInfo::KILL machine instruction and get rid of theJakob Stoklund Olesen
unused DECLARE instruction. KILL is not yet used anywhere, it will replace TargetInstrInfo::IMPLICIT_DEF in the places where IMPLICIT_DEF is just used to alter liveness of physical registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83006 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Also emit a label for TargetInstrInfo::GC_LABEL.Nicolas Geoffray
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81206 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03just use dump()Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Simplify.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80729 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Fix what I believe is a copy-n-pasto introduced in r78129.Daniel Dunbar
- Bruno, please check!! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80728 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01X86/Encoding: Support ExternalSymbol operands in emitDisplacementField (for ↵Daniel Dunbar
consistency). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80727 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Switch MCInst to storing an MCExpr* instead of an MCValue.Daniel Dunbar
Also, use MCInst::print instead of custom code in MCAsmPrinter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80575 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30llvm-mc/X86: Encode constant MCValue's correctly.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80485 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27llvm-mc/X86: Implement single instruction encoding interface for MC.Daniel Dunbar
- Note, this is a gigantic hack, with the sole purpose of unblocking further work on the assembler (its also possible to test the mathcer more completely now). - Despite being a hack, its actually good enough to work over all of 403.gcc (although some encodings are probably incorrect). This is a testament to the beauty of X86's MachineInstr, no doubt! ;) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80234 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22Record variable debug info at ISel time directly.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79742 91177308-0d34-0410-b5e6-96231b3b80d8
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