Commit Graph

8 Commits

Author SHA1 Message Date
Duncan P. N. Exon Smith c8eccd1147 verify-uselistorder: Force -preserve-bc-use-list-order
llvm-svn: 216022
2014-08-19 21:08:27 +00:00
Duncan P. N. Exon Smith 852e00e3d1 verify-uselistorder: Change the default -num-shuffles=5
Change the default for `-num-shuffles` to 5 and better document the
algorithm in the header docs of `verify-uselistorder`.

llvm-svn: 214419
2014-07-31 18:46:24 +00:00
Duncan P. N. Exon Smith 5faa6225ad verify-uselistorder: Add RUN lines to cases in test/Assembly
Add RUN line for `verify-uselistorder` to every test in `test/Assembly`,
unless it's a negative check (assembler rejects it) or verification
fails.

There are three files that verification fails on (so I've left out the
RUN lines):

  - 2002-08-22-DominanceProblem.ll
  - ConstantExprFold.ll
  - ConstantExprFoldCast.ll

This is part of PR5680.

llvm-svn: 214365
2014-07-31 00:10:27 +00:00
Duncan Sands e6beec6765 Relax the restrictions on vector of pointer types, and vector getelementptr.
Previously in a vector of pointers, the pointer couldn't be any pointer type,
it had to be a pointer to an integer or floating point type.  This is a hassle
for dragonegg because the GCC vectorizer happily produces vectors of pointers
where the pointer is a pointer to a struct or whatever.  Vector getelementptr
was restricted to just one index, but now that vectors of pointers can have
any pointer type it is more natural to allow arbitrary vector getelementptrs.
There is however the issue of struct GEPs, where if each lane chose different
struct fields then from that point on each lane will be working down into
unrelated types.  This seems like too much pain for too little gain, so when
you have a vector struct index all the elements are required to be the same.

llvm-svn: 167828
2012-11-13 12:59:33 +00:00
Chris Lattner b1ed91f397 Land the long talked about "type system rewrite" patch. This
patch brings numerous advantages to LLVM.  One way to look at it
is through diffstat:
 109 files changed, 3005 insertions(+), 5906 deletions(-)

Removing almost 3K lines of code is a good thing.  Other advantages
include:

1. Value::getType() is a simple load that can be CSE'd, not a mutating
   union-find operation.
2. Types a uniqued and never move once created, defining away PATypeHolder.
3. Structs can be "named" now, and their name is part of the identity that
   uniques them.  This means that the compiler doesn't merge them structurally
   which makes the IR much less confusing.
4. Now that there is no way to get a cycle in a type graph without a named
   struct type, "upreferences" go away.
5. Type refinement is completely gone, which should make LTO much MUCH faster
   in some common cases with C++ code.
6. Types are now generally immutable, so we can use "Type *" instead 
   "const Type *" everywhere.

Downsides of this patch are that it removes some functions from the C API,
so people using those will have to upgrade to (not yet added) new API.  
"LLVM 3.0" is the right time to do this.

There are still some cleanups pending after this, this patch is large enough
as-is.

llvm-svn: 134829
2011-07-09 17:41:24 +00:00
Chris Lattner bb451461ec remove some noise from tests.
llvm-svn: 112889
2010-09-02 22:35:33 +00:00
Dan Gohman 21c6216c87 Teach lib/VMCore/ConstantFold.cpp how to set the inbounds keyword and
how to fold notionally-out-of-bounds array getelementptr indices instead
of just doing these in lib/Analysis/ConstantFolding.cpp, because it can
be done in a fairly general way without TargetData, and because not all
constants are visited by lib/Analysis/ConstantFolding.cpp. This enables
more constant folding.

Also, set the "inbounds" flag when the getelementptr indices are
one-past-the-end.

llvm-svn: 81483
2009-09-11 00:04:14 +00:00
Chris Lattner 73b5b5adae add testcase for strange types of gep indices
llvm-svn: 70085
2009-04-25 22:20:49 +00:00