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2004-10-10Just because we cannot completely eliminate all uses of a global, we canChris Lattner
still optimize away all of the indirect calls and loads, etc from it. This turns code like this: if (G != 0) G(); into if (G != 0) ActualCallee(); This triggers a couple of times in gcc and libstdc++. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16901 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Another testcase. We should be able to devirtualize the call even thoughChris Lattner
we cannot completely eliminate the global. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16900 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Reorganize FINDLIBS to make most comment libs searched first.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16899 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Initial version of automake Makefile.am file.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16898 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Add the new InstrSched directory.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16897 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Fix named of a library.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16896 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Added debug information. Fixed several bugs in the reconstruct loop function.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16895 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Initial version of automake Makefile.am file.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16894 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Initial version of automake Makefile.am file.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16893 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Build both archive and relinked objectsReid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16892 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Directory changesReid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16891 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10A configure script to configure LLVM for compilation with automakeReid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16890 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Initial version of common automake Rules for LLVMReid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16889 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Initial version of automake Makefile.am file.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16888 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Remove the InstrSched directory (moved to SparcV9)Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16887 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Directory no long exists (moved to Targets/SparcV9).Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16886 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Initial version of automake Makefile.am file.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16885 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Fix assertion failure when calling or returning from a function whichBrian Gaeke
returns 'bool' type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16884 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Implement eliminateCallFramePseudoInstr().Brian Gaeke
Wrap a long comment line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16883 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Model calls as *both* using *and* killing O0..O5, because callees use theBrian Gaeke
argument values passed in (so they're not dead until *after* the call), and callees are free to modify those registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16882 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Fix whitespace and wrap some long lines.Brian Gaeke
Deal with allocating stack space for outgoing args and copying them into the correct stack slots (at least, we can copy <=32-bit int args). We now correctly generate ADJCALLSTACK* instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16881 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Top level makefile for building LLVM with automake.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16880 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Ensure timestamp on saved contents of configure.ac is not changed.Reid Spencer
Use correct options to automake. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16879 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Fix 2004-10-10-CastStoreOnce.llx, by adjusting types back if we strip off a castChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16878 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10New testcase that crashes -globalopt. I found this through inspection, notChris Lattner
actually in the wild :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16877 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Implement GlobalOpt/deadglobal-2.llx, deletion of globals that are onlyChris Lattner
stored to, but are stored at variable indexes. This occurs at least in 176.gcc, but probably others, and we should handle it for completeness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16876 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10New testcase we were not handling before.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16875 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10Avoid calling use_size() which could (in theory) be expensive if the globalChris Lattner
has a large number of users. Instead, just keep track of whether we're making changes as we do so. This patch has no functionlity changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16874 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-10bling bling!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16873 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09A testcase that globalopt now handlesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16872 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09Eliminate global pointers that are only stored a single value and null ifChris Lattner
we know that all uses of the global will trap if the pointer contained is null. In this case, we forward substitute the stored value to any uses. This has the effect of devirtualizing trivial globals in trivial cases. For example, 164.gzip contains this: gzip.h:extern int (*read_buf) OF((char *buf, unsigned size)); bits.c: read_buf = file_read; deflate.c: lookahead = read_buf((char*)window, deflate.c: n = read_buf((char*)window+strstart+lookahead, more); Since read_buf has to point to file_read at every use, we just replace the calls through read_buf with a direct call to file_read. This occurs in several benchmarks, including 176.gcc and 164.gzip. Direct calls are good and stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16871 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09Instead of silently breaking, print notification of why this doesn't work.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16870 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09Fix grammaroChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16869 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09Use DEBUG instead of DebugFlag directly, as DebugFlag does not respectChris Lattner
-debug-only! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16868 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09It looks like we're not releasing 1.4 with llvm.org as the official domainChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16867 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09update according to tonight's infoBrian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16866 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09Implement getModuleMatchQuality and getJITMatchQuality so that v8 will be theBrian Gaeke
default 32/BE target on sparc hosts, and ppc will continue to be the default on other hosts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16865 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09Fix infinite loop due to iterationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16864 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09Implement sub.ll:test17, -X/C -> X/-CChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16863 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09New testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16862 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-09Add a check to avoid an assertion on malformed inputChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16861 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08The person who was planning to add SSE support isn't anymore, so disableChris Lattner
the -sse* options (to avoid misleading people). Also, the stack alignment of the target doesn't depend on whether SSE is eventually implemented, so remove a comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16860 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08Fix a major regression from the bugfix for 2004-10-08-SelectSetCCFold.llx,Chris Lattner
which prevented setcc's from being folded into branches. It appears that conditional branchinst's CC operand is actually operand(2), not operand(0) as we might expect. :( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16859 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08If we found a dead global, we should at least delete it...Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16858 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08* Pull out the meat of runOnModule into another function for clarity.Chris Lattner
* Do not lead dangling dead constants prevent optimization * Iterate global optimization while we're making progress. These changes allow us to be more aggressive, handling cases like GlobalOpt/iterate.llx without a problem (turning it into 'ret int 0'). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16857 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08New testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16856 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08We might as well delete the known-dead global sooner rather than later sinceChris Lattner
we know it is dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16855 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08Hyphenate target-(in)dependent for more tasty grammar goodness (tm)Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16854 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08Temporarily disable a buggy transformation until it can be fixed. This fixesChris Lattner
254.gap. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16853 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08Adjust paths due to moving InstrSched to lib/Target/SparcV9Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16852 91177308-0d34-0410-b5e6-96231b3b80d8
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