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2012-01-12When hoisting common code, watch out for uses which are marked "kill". If theEvan Cheng
killed registers are needed below the insertion point, then unset the kill marker. Sorry I'm not able to find a reduced test case. rdar://10660944 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148043 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Add error-reporting tests for platforms that don't support segmented stacks.Rafael Espindola
Patch by Brian Anderson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148042 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Support segmented stacks on 64-bit FreeBSD.Rafael Espindola
This patch uses tcb_spare field in the tcb structure to store info. Patch by Jyun-Yan You. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148041 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Support segmented stacks on win32.Rafael Espindola
Uses the pvArbitrary slot of the TIB, which is reserved for applications. We only support frames with a static size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148040 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Remove test case, as Chris suggested.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148039 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Add test case to check intel syntax parsing.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148034 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Allow targets to select source order pre-RA scheduler.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148033 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Rename X86ATTAsmParser -> X86AsmParserDevang Patel
We are using one parser to parse att as well as intel style syntax. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148032 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Make SplitAnalysis::UseSlots private.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12After Jakob's r147938 exception handling on i386 was completely broken.Benjamin Kramer
Restore the (obviously wrong) behavior from before r147938 without relying on undefined behavior. Add a fat FIXME note. This should fix nightly tester failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148030 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Fix a bug in the AVX 256-bit shuffle code in cases where the splat element ↵Nadav Rotem
is on the boundary of two 128-bit vectors. The attached testcase was stuck in an endless loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148027 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12X86: Generalize the x << (y & const) optimization to also catch masks with ↵Benjamin Kramer
more set bits set than 31 or 63. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148024 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Move Sched::Preference out of TargetMachine.h where it is not referenced.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148014 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Add predicate method check match memory operand size, if available.Devang Patel
In att style asm syntax memory operand size is derived from suffix attached with mnemonic. In intel style asm syntax it is part of memory operand hence predicate method check is required to select appropriate instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148006 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12A DenseMap of a std::map isn't a very good idea because the "grow()" method willBill Wendling
need to make a deep copy of each of the std::maps. Use a std::map of the std::map instead. This improves the compile time of sqlite3 by ~2%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148003 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Add intel style operand parser skeleton. Devang Patel
This is a work in progress. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148002 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Switch all of the uses of my InsertDAGNode helper to follow the exactChandler Carruth
same pattern. We already had this pattern is a few places, but others tried to make a rough approximation of an actual DAG structure. As not everywhere went to this trouble, nothing could rely on this being done. In fact, I've checked all references to these node Ids, and the ones that are using the topo-sort properties are actually satisfied with a strict-weak-ordering. The requirement appears to be that Use >= Def. I've added a big blurb of comments to this bit of the transform to clarify why the order is so important for the next reader of the code. I'm starting with this change as it is very small, and trivially reverted if something breaks or the >= above really does need to be >. If that proves the case, we can hide the problem by reverting this patch, but the problem exists elsewhere as well, and so a more comprehensive solution will be needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148001 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Revert r147978. A DenseMap's iterators may become invalidated here.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147980 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Make data structures private.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147979 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Use a DenseMap.Bill Wendling
This appears to improve sqlite3's compile time by ~2%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147978 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Sink spillInterferences into RABasic.Jakob Stoklund Olesen
This helper method is too simplistic for RAGreedy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147976 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Cleanup.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147975 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Move RegAllocBase into its own cpp file separate from RABasic.Jakob Stoklund Olesen
No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147972 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Re-fix the issue Bill fixed in r147899 in a slightly different way, which ↵Eli Friedman
doesn't abuse the semantics of linker_private. We don't really want to merge any string constant with a weak_odr global. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147971 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-1180 columns.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147970 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11lli should only create memmgr when JITing.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147969 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11lli should create a JIT memory manager.Jim Grosbach
Previously let the JITEmitter do it. That's rather odd, and doesn't play nice with the MCJIT, so move the (trivial) logic up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147967 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Fix assert.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147966 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Disable the crash reporter when running lit tests.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147965 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11On AVX, we can load v8i32 at a time. The bug happens when two uneven loads ↵Nadav Rotem
are used. When we load the v12i32 type, the GenWidenVectorLoads method generates two loads: v8i32 and v4i32 and attempts to use CONCAT_VECTORS to join them. In this fix I concat undef values to widen the smaller value. The test "widen_load-2.ll" also exposes this bug on AVX. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147964 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Check to make sure that the CFString's back store ends up in the correct ↵Bill Wendling
section. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147961 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Support segmented stacks on mac.Rafael Espindola
This uses TLS slot 90, which actually belongs to JavaScriptCore. We only support frames with static size Patch by Brian Anderson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147960 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Split segmented stacks tests into tests for static- and dynamic-size frames.Rafael Espindola
Patch by Brian Anderson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147959 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Generate the segmented stack prologue for fastcc too.Rafael Espindola
Patch by Brian Anderson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147958 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Revert r147945 which disabled an addressing mode transformation. I hadChandler Carruth
hoped this would revive one of the llvm-gcc selfhost build bots, but it didn't so it doesn't appear that my transform is the culprit. If anyone else is seeing failures, please let me know! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147957 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Use unsigned comparison in segmented stack prologue.Rafael Espindola
This is a comparison of two addresses, and GCC does the comparison unsigned. Patch by Brian Anderson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147954 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11[asan] extend the workaround for http://llvm.org/bugs/show_bug.cgi?id=11395: ↵Kostya Serebryany
don't instrument the function at all on x86_32 if it has a large asm blob git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147953 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Explicitly set the scale to 1 on some segstack prologue instrs.Rafael Espindola
Patch by Brian Anderson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147952 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11The error check for using -g with a .s file already containing dwarf .fileKevin Enderby
directives was in the wrong place and getting triggered incorectly with a cpp .file directive. This change fixes that and adds a test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147951 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Add XOP Intrinsics and testsJan Sjödin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147949 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Fix a bug in the lowering of BUILD_VECTOR for AVX. SCALAR_TO_VECTOR does not ↵Nadav Rotem
zero untouched elements. Use INSERT_VECTOR_ELT instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147948 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Don't try to create a GEP when the pointee type is unsized (such GEPsDuncan Sands
are invalid). Fixes a crash on array1.C from the GCC testsuite when compiled with dragonegg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147946 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Disable the transformation I added in r147936 to see if it fixes someChandler Carruth
strange build bot failures that look like a miscompile into an infloop. I'll investigate this tomorrow, but I'd both like to know whether my patch is the culprit, and get the bots back to green. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147945 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Hoist a really redundant code pattern into a helper function, and deleteChandler Carruth
lots of lines of code. No functionality changed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147942 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Simplify the AND-rooted mask+shift checking code to match that of theChandler Carruth
SRL-rooted code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147941 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Unify the interface of the three mask+shift transform helpers, andChandler Carruth
factor the differences that were hiding in one of them into its other caller, the SRL handling code. No change in behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147940 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Clarify and make explicit some of the requirements for transformingChandler Carruth
mask+shift pairs at the beginning of the ISD::AND case block, and then hoist the final pattern into a helper function, simplifying and reflowing it appropriately. This should have no observable behavior change, but several simplifications fell out of this such as directly computing the new mask constant, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147939 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Fix undefined code and reenable test case.Jakob Stoklund Olesen
I don't think the compact encoding code is right, but at least is has defined behavior now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147938 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Hoist the logic to transform shift+mask combinations into sub-registerChandler Carruth
extracts and scaled addressing modes into its own helper function. No functionality changed here, just hoisting and layout fixes falling out of that hoisting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147937 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11Teach the X86 instruction selection to do some heroic transforms toChandler Carruth
detect a pattern which can be implemented with a small 'shl' embedded in the addressing mode scale. This happens in real code as follows: unsigned x = my_accelerator_table[input >> 11]; Here we have some lookup table that we look into using the high bits of 'input'. Each entity in the table is 4-bytes, which means this implicitly gets turned into (once lowered out of a GEP): *(unsigned*)((char*)my_accelerator_table + ((input >> 11) << 2)); The shift right followed by a shift left is canonicalized to a smaller shift right and masking off the low bits. That hides the shift right which x86 has an addressing mode designed to support. We now detect masks of this form, and produce the longer shift right followed by the proper addressing mode. In addition to saving a (rather large) instruction, this also reduces stalls in Intel chips on benchmarks I've measured. In order for all of this to work, one part of the DAG needs to be canonicalized *still further* than it currently is. This involves removing pointless 'trunc' nodes between a zextload and a zext. Without that, we end up generating spurious masks and hiding the pattern. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147936 91177308-0d34-0410-b5e6-96231b3b80d8
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