llvm/test/Transforms/GlobalOpt, branch release_25http://llvm.orghttps://git.amat.us/llvm/atom/test/Transforms/GlobalOpt?h=release_252009-01-14T00:12:58Zrewrite OptimizeAwayTrappingUsesOfLoads to 1) avoid a temporary2009-01-14T00:12:58ZChris Lattnersabre@nondot.org2009-01-14T00:12:58Zurn:sha1:92c6bd2c45f0002385300a8aa298fa34ef9bff64
vector and extraneous loop over it, 2) not delete globals used by
phis/selects etc which could actually be useful. This fixes PR3321.
Many thanks to Duncan for narrowing this down.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62201 91177308-0d34-0410-b5e6-96231b3b80d8
Reimplement the old and horrible bison parser for .ll files with a nice2009-01-02T07:01:27ZChris Lattnersabre@nondot.org2009-01-02T07:01:27Zurn:sha1:df98617b23315e427cc4fad8ccfdd50d68bec2f9
and clean recursive descent parser.
This change has a couple of ramifications:
1. The parser code is about 400 lines shorter (in what we maintain, not
including what is autogenerated).
2. The code should be significantly faster than the old code because we
don't have to work around bison's poor handling of datatypes with
ctors/dtors. This also makes the code much more resistant to memory
leaks.
3. We now get caret diagnostics from the .ll parser, woo.
4. The actual diagnostics emited from the parser are completely different
so a bunch of testcases had to be updated.
5. I now disallow "%ty = type opaque %ty = type i32". There was no good
reason to support this, it was just an accident of the old
implementation. I have no reason to think that anyone is actually using
this.
6. The syntax for sticking a global variable has changed to make it
unambiguous. I don't think anyone is depending on this since only clang
supports this and it is not solid yet, so I'm not worried about anything
breaking.
7. This gets rid of the last use of bison, and along with it the .cvs files.
I'll prune this from the makefiles as a subsequent commit.
There are a few minor cleanups that can be done after this commit (suggestions
welcome!) but this passes dejagnu testing and is ready for its time in the
limelight.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61558 91177308-0d34-0410-b5e6-96231b3b80d8
Enhance heap sra to be substantially more aggressive w.r.t PHI2008-12-17T05:28:49ZChris Lattnersabre@nondot.org2008-12-17T05:28:49Zurn:sha1:bce4afe83968bf6504aaf0791d4c49f971d58c52
nodes. This allows it to do fairly general phi insertion if a
load from a pointer global wants to be SRAd but the load is used
by (recursive) phi nodes. This fixes a pessimization on ppc
introduced by Load PRE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61123 91177308-0d34-0410-b5e6-96231b3b80d8
Fix another crash found by inspection. If we have a PHI node merging2008-12-16T21:24:51ZChris Lattnersabre@nondot.org2008-12-16T21:24:51Zurn:sha1:85d3d4f35de33c6d0d3800bd87619c00d06a98e2
the load multiple times, make sure the check the uses of the PHI to
ensure they are transformable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61102 91177308-0d34-0410-b5e6-96231b3b80d8
fix a crash found by inspection.2008-12-16T21:04:51ZChris Lattnersabre@nondot.org2008-12-16T21:04:51Zurn:sha1:542dc1a0decc2b598a1f856370a55091a51e102c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61101 91177308-0d34-0410-b5e6-96231b3b80d8
add testcase for r610512008-12-15T21:46:23ZChris Lattnersabre@nondot.org2008-12-15T21:46:23Zurn:sha1:657084a8eaf82243ed45e2be52e17c582b86b32c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61052 91177308-0d34-0410-b5e6-96231b3b80d8
add a basic test for heap-sra2008-12-15T19:42:05ZChris Lattnersabre@nondot.org2008-12-15T19:42:05Zurn:sha1:ca17422158a0f50d43421f6fbbee4b4fe204f08b
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61041 91177308-0d34-0410-b5e6-96231b3b80d8
Resolve aliases, when possible2008-09-09T19:04:59ZAnton Korobeynikovasl@math.spbu.ru2008-09-09T19:04:59Zurn:sha1:e4c6b61ebd8f2dbb6a2e51fe1d0e2bdbe17986c4
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56001 91177308-0d34-0410-b5e6-96231b3b80d8
Make GlobalOpt preserve address spaces when scalar replacing aggregate globals.2008-07-17T11:59:53ZMatthijs Kooijmanmatthijs@stdin.nl2008-07-17T11:59:53Zurn:sha1:bc1f989e3c58b24faf37a149a1ede294483b09b8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53716 91177308-0d34-0410-b5e6-96231b3b80d8
sabre brings to my attention that the 'tr' suffix is also obsolete2008-05-20T21:00:03ZGabor Greifggreif@gmail.com2008-05-20T21:00:03Zurn:sha1:f6cadc440cbf04330b3cda9a3c76728f08035203
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51349 91177308-0d34-0410-b5e6-96231b3b80d8