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2003-10-13Checkin an improvement contributed by Bill:Chris Lattner
Only transform call sites in a setjmp'ing function which are reachable from the setjmp. If the call dominates the setjmp (for example), the called function cannot longjmp to the setjmp. This dramatically reduces the number of invoke instructions created in some large testcases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9066 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-13Add support to the loop canonicalization pass to make it transform loops toChris Lattner
have a SINGLE backedge. This is useful to, for example, the -indvars pass. This implements testcase LoopSimplify/single-backedge.ll and closes PR#34 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9065 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-12Make getNumBackEdges more efficientChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9063 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-12Rename loop preheaders pass to loop simplifyChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9061 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-12File is renamed to LoopSimplify.cppChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9059 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-12First step in renaming the preheaders pass to loopsimplifyChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9058 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-12The preheader insertion pass only depends on the CFG. Mark it as such, whichChris Lattner
allows GCCAS to only run it once. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9056 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-12Rename methodChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9055 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-12* Spell "necessary" correctlyChris Lattner
* Print floating point values using C99 hexadecimal style FP if possible. This increases the number of floating point constants that may be emitted inline, and improves precision for global variable initializers which can not be emitted in integer form. This fixes the Olden/Power benchmark with the CBE!!!! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9052 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-12* Be TBAA safeChris Lattner
* Fix isFPCSafeToPrint to find more constants safe to print, which it was failing because ftostr was padding with leading space characters. * Scan the entire module for global constants instead of each function at a time. This has the advantage of allowing us to emit constants at global scope instead of function scope. This speeds FP programs quite a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9048 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-11Make mmap's fd for anonymous memory acquisition default to -1, except onBrian Gaeke
Linux. This is consistent with what FreeBSD and Solaris both want. This makes the JIT work on FreeBSD 5.1-RELEASE. Whee. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9045 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Don't include "Config/stdlib.h".Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9037 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Include <cctype> and <cstdlib> instead of <ctype.h> and "Config/stdlib.h".Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9036 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Include <cstdio> instead of <stdio.h>.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9032 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Don't include Config/stdio.h or <stdio.h>.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9031 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Fix spelling.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9027 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Fix spelling/grammar.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9023 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10* Tabs to spacesMisha Brukman
* Doxygenified function comments * Added FIXMEs to solicit documentation for other functions git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9022 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Fix spelling.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9021 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10* Doxygenified commentsMisha Brukman
* Wrap code at 80 columns * Ordered includes according to LLVM style guide git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9020 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Never set any signal handlers.Brian Gaeke
Never call setjmp(), longjmp() or strsignal(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9014 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Rewrite head-of-file comment.Brian Gaeke
In lookupFunction(): Change to use "F" for Function argument instead of ancient "M". Remove commented-out code. Change to use GetAddressOfSymbol instead of dlsym. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9013 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Change to use GetAddressOfSymbol instead of dlsym.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9012 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Change to use LinkDynamicObject instead of dlopen.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9011 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Change to use strtoul instead of strtoll.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9010 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Fixing the spelling of this filename.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9009 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Add my abstracted dynamic linker support files.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9008 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10Reserve space for PHI operandsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9007 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
2003-10-10Accept '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
2003-10-10Add better checkingChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8996 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
2003-10-09Use 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
2003-10-09Change 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
2003-10-09Do 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
2003-10-09Eliminate 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
2003-10-08Various 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
2003-10-08Update 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
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