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2003-10-10Re-did some of the text wrapping (sorry).John Criswell
Made the "Getting Started Quickly" material its own section. I think this makes the document easier to read. Added bars after every major section heading (to distinguish them more easily from sub-section headings). Renamed C front end to GCC front end, as we now support C and C++. Updated material to reflect the new autoconf-style object root. Added material about the llvm/runtime directory and the fact that you need to install the GCC front end before building LLVM (before, it was optional). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9003 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Ok, the "fix" for this is to do a real associative container. Symbol tablesChris Lattner
are ordered by name, not by slot, so the previous solution wasn't any good. On a large testcase, this reduces time to parse from 2.17s to 1.58s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9002 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Add documentation for weak variablesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9001 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Add support for the weak linkage specifierChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9000 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10new testcase. globaldce should not delete the globalChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8999 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Accept 'weak' as a linkage type. For now, just turn it into linkonce linkageChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8998 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10New testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8997 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Add better checkingChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8996 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Added the eon and perlbmk benchmarks.John Criswell
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8995 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Another 10% performance improvement by not using replaceAllUsesWithChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8994 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Reserve space for PHI nodes when we read them in. This provides a VERYChris Lattner
tasty 15% speedup on the testcase from Bill. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8993 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Add a method to reserve space for operandsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8992 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Use the version of getValue that takes the type plane instead of the typeChris Lattner
if possible. This provides a consistent 8.5% speedup. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8991 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Pass a vector around to reduce dynamic allocationChris Lattner
Throw the RawInst class in an anon namespace git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8990 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Kill warning when compiling in optimized modeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8989 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Change getConstantValue to throw an exception on error, not return nullChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8988 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Make getContainedType more efficient by not returning null if out of range!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8987 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Do not read past the end of the contained type listChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8986 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Remove potentially N^2 algorithm from symbol table reader. No speedupChris Lattner
in practice though git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8985 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Major refactoring of the bytecode reader. This includes the followingChris Lattner
changes: * BytecodeReader::getType(...) used to return a null pointer on error. This was only checked about half the time. Now we convert it to throw an exception, and delete the half that checked for error. This was checked in before, but psmith crashed and lost the change :( * insertValue no longer returns -1 on error, so callers don't need to check for it. * Substantial rewrite of InstructionReader.cpp, to use more efficient, simpler, data structures. This provides another 5% speedup. This also makes the code much easier to read and understand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8984 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Significantly clean up parsing of instructions. This exceptionizes andChris Lattner
simplifies the control flow a bit. This provides a small (~3%) speedup, but it's primarily a cleanup exercise. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8983 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Include the new docs directory, whenever it gets added. www is goneChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8982 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Added 177.mesa to the list of Makefiles to propogate to the object root.John Criswell
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8981 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Eliminate the instruction placeholder. Simplify a bunch of code.Chris Lattner
This results in no significant speedup, but does provide simpler code git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8980 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Eliminate the old LateResolveValues data structure, replacing it with aChris Lattner
new, simpler, ForwardReferences data structure. This is just the first simple replacement, subsequent changes will improve the code more. This simple change improves the performance of loading a file from HDF5 (contributed by Bill) from 2.36s to 1.93s, a 22% improvement. This presumably has to do with the fact that we only create ONE placeholder for a particular forward referenced values, and also may be because the data structure is much simpler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8979 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-09Remove a dead methodChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8978 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08This patch substantially simplifies and cleans up handling of basic blocksChris Lattner
in the bytecode parser. Before we tried to shoehorn basic blocks into the "getValue" code path with other types of values. For a variety of reasons this was a bad idea, so this patch separates it out into its own data structure. This simplifies the code, makes it fit in 80 columns, and is also much faster. In a testcase provided by Bill, which has lots of PHI nodes, this patch speeds up bytecode parsing from taking 6.9s to taking 2.32s. More speedups to follow later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8977 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Inline the postResolveValues method. It was poorly named anywayChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8976 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08test/Programs/NoSource and www are gone from the tree; don't try to configureBrian Gaeke
their Makefiles. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8975 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Use 3-arg form of AC_DEFINE.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8974 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Use 3-arg form of AC_DEFINE.Brian Gaeke
Check for strsignal(), which isn't found everywhere, and sys_siglist, which can be used to implement it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8973 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08I really meant to use that AUTOHEADER variable I put in there.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8972 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Various cleanups and simplifications. This speeds up reading a bytecode fileChris Lattner
Bill gave me from 8.69s to 6.90s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8971 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Destroy allocated resources on exception.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8969 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Make more error messages have gccld's name in them.Brian Gaeke
Add a newline after "Cannot find <library>". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8968 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08old testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8967 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Checkin an old bug, which appears to be fixedChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8966 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Update commentChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8965 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Use a set to keep track of which edges have been noticed as executable alreadyChris Lattner
to avoid reprocessing PHI nodes needlessly. This speeds up the big bad PHI testcase 43%: from 104.9826 to 73.5157s git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8964 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Minor fixes here and thereChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8963 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Avoid building data structures we don't really need. This improves the runtimeChris Lattner
of a test that Bill Wendling sent me from 228.5s to 105s. Obviously there is more improvement to be had, but this is a nice speedup which should be "felt" by many programs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8962 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Convert over to short bug URLsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8961 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Change MRegisterDesc::AliasSet, TargetInstrDescriptor::ImplicitDefsAlkis Evlogimenos
and TargetInstrDescriptor::ImplicitUses to always point to a null terminated array and never be null. So there is no need to check for pointer validity when iterating over those sets. Code that looked like: if (const unsigned* AS = TID.ImplicitDefs) { for (int i = 0; AS[i]; ++i) { // use AS[i] } } was changed to: for (const unsigned* AS = TID.ImplicitDefs; *AS; ++AS) { // use *AS } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8960 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Properly close anchor tags in column descriptionsAlkis Evlogimenos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8959 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08Forward declare class Type since it is used in this class and Type.h is not ↵Alkis Evlogimenos
included git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8958 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-07Add rule for regenerating config.h.in using autoheader.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8957 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-07Regenerated with (at top-level llvm directory):Brian Gaeke
% autoheader -I autoconf autoconf/configure.ac git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8956 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-07whoops, don't accidentally lose variable namesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8955 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-07Fix bug: InstCombine/cast.ll:test11 / PR#7Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8954 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-07new testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8953 91177308-0d34-0410-b5e6-96231b3b80d8
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