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2010-01-19Do not extend extension results beyond the use of a PHI instruction at the ↵Evan Cheng
start of a use block. A PHI use is expected to kill its source values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93895 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19refactor code to be static functions instead of methods on AsmPrinter.Chris Lattner
This fixes some bugs handling address spaces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93891 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19mcstreamerize AsmPrinter::EmitZeros, at least when emitting to the Chris Lattner
default address space. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93890 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19add an MCAsmStreamer::EmitFill specialization of EmitFill thatChris Lattner
emits one directive instead of N. Not doing this would be a significant regression on the # bytes generated by .fill. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93889 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19add a "MCStreamer::EmitFill" method, and move the default implementationChris Lattner
(which just iteratively emits bytes) to MCStreamer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93888 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19remove MAI::ZeroDirectiveSuffix, which is only used by MASM,Chris Lattner
which we don't support anymore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93886 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19For aligned load/store instructions, it's only required to know whether aJim Grosbach
function can support dynamic stack realignment. That's a much easier question to answer at instruction selection stage than whether the function actually will have dynamic alignment prologue. This allows the removal of the stack alignment heuristic pass, and improves code quality for cases where the heuristic would result in dynamic alignment code being generated when it was not strictly necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93885 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19optimize ~(~X >>s Y) --> (X >>s Y), patch by Edmund GrimleyChris Lattner
Evans! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93884 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19On pic function calls some arguments were marked dead andBruno Cardoso Lopes
the instruction to load those args removed. This fix PR6071 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93880 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19The change in r90189 adds a link in a directory outside the iPhone platformBob Wilson
directory when building the llvmCore_Embedded project. Fix this by putting the iPhone platform directory into DEST_DIR instead of DEST_ROOT. I also noticed what appears to be an unintentional use of DEVELOPER_BIN instead of DEVELOPER_DIR, so I fixed that and changed to use DEVELOPER_DIR in some places that were hardcoded to "Developer". Finally, the other changes here allowed some refactoring and simplification, which I have done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93878 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19load f64 +0.0 in a cleaner way. This fix part of PR5445Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93876 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Fix return registers for mips eabiBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93875 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19mcstreamer'ize the rest of EmitGlobalVariable that is used on Chris Lattner
darwin. The next big piece to get global variables streamerized is EmitGlobalConstant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93870 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19don't let asm-verbose break the check-next lines in these tests.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93869 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19stop using the .lcomm pseudoop on darwin, instead, directly use theChris Lattner
.zerofill directive. Streamerize its generation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93868 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19fix parsing .comm directives on systems which do not represent alignmentsChris Lattner
as a power of 2. This fixes MC/AsmParser/directive_comm.s git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93867 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19only darwin has zerofillChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19MDNodes are not expected to disappear or replaced by another MDNode, so ↵Devang Patel
there is no need to pay the cost of WeakVH and ValueMaps. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93865 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Avoid including DebugInfo.h in AsmPrinter.hDevang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93864 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19zap the ARM version of PrintGlobalVariable, which I missed.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93863 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19mc'ize some stuff, don't comment out .lcomm directive in -fverbose-asm mode.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93860 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19factor this code better.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93859 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Now that we have everything nicely factored (e.g. asmprinter is notChris Lattner
doing global variable classification anymore) and hookized, sink almost all target targets global variable emission code into AsmPrinter and out of each target. Some notes: 1. PIC16 does completely custom and crazy stuff, so it is not changed. 2. XCore has some custom handling for extra directives. I'll look at it next. 3. This switches linux/ppc to use .globl instead of .global. If .globl is actually wrong, let me know and I'll fix it. 4. This makes linux/ppc get a lot of random cases right which were obviously wrong before, it is probably now a bit healthier. 5. Blackfin will probably start getting .comm and other things that it didn't before. If this is undesirable, it should explicitly opt out of these things by clearing the relevant fields of MCAsmInfo. This leads to a nice diffstat: 14 files changed, 127 insertions(+), 830 deletions(-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93858 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19use %object like other elf targets, gas accepts either.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93857 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19simplify the mips target to print .size and .type for c strings Chris Lattner
just like all other elf targets. Bruno, if this isn't right, please let me know + why :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93856 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19hookize the cygwin ".linkonce" directive.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93855 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19more cleanups. Emit the .local directive even on cygwin/mingw.Chris Lattner
I'm not sure that this is correct, but it causes no test failures, and just emitting a .comm without protecting its linkage somehow is surely not right. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19some cleanupsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93853 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19add a bool for whether .lcomm takes an alignment instead of basing this on ↵Chris Lattner
"isdarwin". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93852 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19hoist handling of external globals and special globals up to common code.Chris Lattner
This makes a similar code dead in all the other targets, I'll clean it up in a bit. This also moves handling of lcomm up before acquisition of a section, since lcomm never needs a section. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93851 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19move production of .reference directives for static ctor/dtor list onChris Lattner
darwin into common code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93849 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Fix a crash in scalarrepl for memcpy/memmove where the source and destinationBob Wilson
are the same. I had already fixed a similar problem where the source and destination were different bitcasts derived from the same alloca, but the previous fix still did not handle the case where both operands are exactly the same value. Radar 7552893. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93848 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19use BSSLocal classifier to identify 'lcomm' data instead ofChris Lattner
duplicating the logic (differently) in lots of different targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93847 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19make TLOF subclassify BSS based on linkage type into private, externalChris Lattner
and everything else (weak). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93846 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19now that elf weak bss symbols are handled correctly, simplify a bunch of code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19fix a significant difference between llvm and gcc on ELF systems:Chris Lattner
GCC would put weak zero initialized mutable data in the .bss section, we would put it into a crasy '.gnu.linkonce.b.test,"aw",@nobits' section. Fixing this will allow simplifications next up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93844 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19introduce a section kind for common linkage. Use this to slightlyChris Lattner
simplify and commonize some of the asmprinter logic for globals. This also avoids printing the MCSection for .zerofill, which broke the llvm-gcc build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93843 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19there is no need to emit a .section above .comm on linux.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Even more explanation.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93841 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19change an accessor to a predicate.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93839 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Cleanup handling of .zerofill on darwin:Chris Lattner
1. TargetLoweringObjectFileMachO should decide if something goes in zerofill instead of having every target do it. 2. TargetLoweringObjectFileMachO should assign said symbols to the right MCSection, the asmprinters should just emit to the right section. 3. Since all zerofill stuff goes through mcstreamer anymore, MAI can have a bool "haszerofill" instead of having the textual directive to emit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93838 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Remove this fixme, looking at the linker source, all targets pad to 4 bytes.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93835 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19remove extraneous ;Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93833 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Revert accident check-in from r93165.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93832 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Fix comment.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93831 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Fix r93758. Use isel patterns instead of c++ selection code to select rbit ↵Evan Cheng
and make sure we pick different instructions for ARM vs. Thumb2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93829 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Test case for r93758.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93824 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Reverting.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93819 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Revert 93811 per request.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93818 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-18Enable code to emit dbg.declare as DEBUG_VALUEDale Johannesen
comments (fast isel, X86). This doesn't seem to break any functionality, but will introduce cases where -g affects the generated code. I'll be fixing that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93811 91177308-0d34-0410-b5e6-96231b3b80d8
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