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2010-02-08ConstantFoldConstantExpression can theoretically return the originalDan Gohman
expression; don't go into an infinite loop if it does. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95591 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-08When CodeGen'ing unoptimized code, there may be unfolded constant expressionsDan Gohman
in global initializers. Instead of aborting, attempt to fold them on the spot. If folding succeeds, emit the folded expression instead. This fixes PR6255. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95583 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-08Apply the 95471 fix to SelectionDAGBuilder as well;Dale Johannesen
we can get in here if FastISel gives up in a block. (Actually the two copies of this need to be unified. Later.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95579 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-08In guaranteed tailcall mode, don't decline the tailcall optimizationDan Gohman
for blocks ending in "unreachable". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95565 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-07Give DwarfPrinter a protected (but not virtual) destructor. CppcheckDuncan Sands
warns about this base class not having a virtual destructor, but since this class has no virtual methods and neither it or the types derived from it has a destructor, a protected trivial destructor will do (and shuts cppcheck up) the trick without the cost of introducing a vtable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95526 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06Run codegen dce pass for all targets at all optimization levels. Previously it'sEvan Cheng
only run for x86 with fastisel. I've found it being very effective in eliminating some obvious dead code as result of formal parameter lowering especially when tail call optimization eliminated the need for some of the loads from fixed frame objects. It also shrinks a number of the tests. A couple of tests no longer make sense and are now eliminated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95493 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06Fix an uninitialized value. Radar 7609421.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95488 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06After Victor's latest commits I am seeing nullDale Johannesen
addresses in dbg.declare; ignore this for the moment to prevent things from breaking. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95471 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06Set DW_AT_artificial only if argument is marked as artificial.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95461 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05Do not generate specification DIE for nested functions.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05When the scheduler unfold a load folding instruction it move some of the ↵Evan Cheng
predecessors to the unfolded load. It decides what gets moved to the load by checking whether the new load is using the predecessor as an operand. The check neglects the cases whether the predecessor is a flagged scheduling unit. rdar://7604000 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95339 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05An empty global constant (one of size 0) may have a section immediatelyBill Wendling
following it. However, the EmitGlobalConstant method wasn't emitting a body for the constant. The assembler doesn't like that. Before, we were generating this: .zerofill __DATA, __common, __cmd, 1, 3 This fix puts us back to that semantic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95336 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04Fix typo Duncan noticed.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95322 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04Fix small bug in handling instructions with more than one implicitly defined ↵Jakob Stoklund Olesen
operand. ProcessImplicitDefs would only mark one operand per instruction with <undef>. This fixed PR6086. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95319 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04It's too risky to eliminate sext / zext of call results for tail call ↵Evan Cheng
optimization even if the caller / callee attributes completely match. The callee may have been bitcast'ed (or otherwise lied about what it's doing). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95282 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Emit appropriate expression to find virtual base offset.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95242 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Provide interface to identifiy artificial methods.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95240 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03make MachineModuleInfoMachO hold non-const MCSymbol*'s insteadChris Lattner
of const ones. non-const ones aren't very useful, because you can't even, say, emit them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03change addPassesToEmitFile to return true on failure instead of its input,Chris Lattner
add -filetype=null for performance testing and remove -filetype=dynlib, which isn't planned to be implemented. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95202 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Revert 94937 and move the noreturn check to codegen.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95198 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Allow all types of callee's to be tail called. But avoid automatic tailcall ↵Evan Cheng
if the callee is a result of bitcast to avoid losing necessary zext / sext etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03don't emit \n's at the start of X86AsmPrinter::runOnMachineFunction,Chris Lattner
.o files don't like that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95187 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03privatize a bunch of methods and move \n printing into them.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95186 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Reapply 95050 with a tweak to check the register class.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95183 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03rejigger the world so that EmitInstruction prints the \n atChris Lattner
the end of the instruction instead of expecting the caller to do it. This currently causes the asm-verbose instruction comments to be on the next line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95178 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03sink handling of target-independent machine instrs (otherChris Lattner
than DEBUG_VALUE :( ) into the target indep AsmPrinter.cpp file. This allows elimination of the NO_ASM_WRITER_BOILERPLATE hack among other things. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95177 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03pass an instprinter into the AsmPrinter if it is available.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95168 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03make any use of the "O" stream in asmprinter print toChris Lattner
stderr if in filetype=obj mode. This is a hack, and will live until dwarf emission and other random stuff that is not yet going through MCStreamer is upgraded. It only impacts filetype=obj mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95166 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Hook up -filetype=obj through the MachO streamer. Here's a demo:Chris Lattner
$ cat t.ll @g = global i32 42 $ llc t.ll -o t.o -filetype=obj $ nm t.o 00000000 D _g There is still a ton of work left. Instructions are not being encoded yet apparently. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95162 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Revert 95130.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95160 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02use OwningPtr and factor code better.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02refactor code so that LLVMTargetMachine creates the asmstreamer and Chris Lattner
mccontext instead of having AsmPrinter do it. This allows other types of MCStreamer's to be passed in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02simplify getVerboseAsmChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95153 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02move handling of asm-verbose out of AsmPrinter.cpp into ↵Chris Lattner
LLVMTargetMachine.cpp with the rest of the command line options. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95152 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02remove dead #include, stupid symlinks.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95150 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Remove a bunch of stuff around the edges of the ELF writer.Chris Lattner
Now the only use of the ELF writer is the JIT, which won't be easy to fix in the short term. :( :( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95148 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Pass callsite return type to TargetLowering::LowerCall and use that to check ↵Evan Cheng
sibcall eligibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95130 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02eliminate FileModel::Model, just use CodeGenFileType. The clientChris Lattner
of the code generator shouldn't care what object format a target uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95124 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02eliminate all forms of addPassesToEmitMachineCode exceptChris Lattner
the one used by the JIT. Remove all forms of addPassesToEmitFileFinish except the one used by the static code generator. Inline the remaining version of addPassesToEmitFileFinish into its only caller. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95109 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Test revert 95050; there's a good chance it's causingDale Johannesen
buildbot failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95103 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Inline addAssemblyEmitter into its one real caller and deleteChris Lattner
the -print-emitted-asm option. The JIT shouldn't have to pull in the asmprinter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95100 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Apparently gdb is not amused by empty lines in pubtypes section.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95064 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02NULL terminate name in pubtypes sections.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95062 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Make local RA smarter about reusing input register of a copyDale Johannesen
as output. Needed for (functional) correctness in inline asm, and should be generally beneficial. 7361612. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95050 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Update CMake.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95041 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01Kill the Mach-O writer, and temporarily make filetype=obj an error.Nate Begeman
The MCStreamer based assemblers will take over for this functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95033 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01Improve EXTRACT_VECTOR_ELT patch based on comments from DuncanMon P Wang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95012 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01eliminate a bunch of pointless LLVMContext arguments.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95001 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01fix PR 6157. Testcase pending.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94996 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01Fixed a couple of optimization with EXTRACT_VECTOR_ELT that assumes the resultMon P Wang
type is the same as the element type of the vector. EXTRACT_VECTOR_ELT can be used to extended the width of an integer type. This fixes a bug for Generic/vector-casts.ll on a ppc750. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94990 91177308-0d34-0410-b5e6-96231b3b80d8
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