dangling constant users were removed from a function, causing it to be dead,
we never removed the call graph edge from the external node to the function.

In most cases, this didn't cause a problem (by luck).  This should definitely
go into 1.3

llvm-svn: 15570

llvm-svn: 15334

to constify 14 globals instead of 4 in a trivial C++ testcase.

llvm-svn: 15027

llvm-svn: 14974

night compiling cfrac.  It did not realize that code like this:

int G; int *H = &G;

takes the address of G.

llvm-svn: 14973

llvm-svn: 14963

llvm-svn: 14958

llvm-svn: 14957

- Replace ConstantPointerRef usage with GlobalValue usage

llvm-svn: 14953

- Minimize redundant isa<GlobalValue> usage

llvm-svn: 14948

- Replace ConstantPointerRef usage with GlobalValue usage
- Rename methods to get ride of ConstantPointerRef usage

llvm-svn: 14945

- Excise dead CPR procesing.

llvm-svn: 14944

llvm-svn: 14460

and are a maintenence burden.  Nuke nuke nuke

llvm-svn: 14457

llvm-svn: 14325

of ConstantInt objects in memory used to determine which order arguments
were added in in some cases.

llvm-svn: 14276

relative location of Function objects in memory.

llvm-svn: 14260

things from happening due to

declare bool %llvm.isunordered(double, double)
declare bool %llvm.isunordered(float, float)

llvm-svn: 14219

llvm-svn: 14201

to eliminate the wrong type.

llvm-svn: 13855

llvm-svn: 13754

llvm-svn: 13717

caller was in an SCC.

llvm-svn: 13693

llvm-svn: 13692

we make the transformation.  This allows us to use interprocedural alias
analyses successfully.

llvm-svn: 13691

the function instead of isolating it. This also means the condition is reversed.

llvm-svn: 13112

the Module. The default behavior keeps functionality as before: the chosen
function is the one that remains.

llvm-svn: 13111

Eventually it would be nice if CallGraph maintained an ilist of CallGraphNode's instead
of a vector of pointers to them, but today is not that day.

llvm-svn: 13100

llvm-svn: 13089

is done, which avoids invalidating iterators in the SCC traversal routines

llvm-svn: 13088

llvm-svn: 13080

structure to being dynamically computed on demand.  This makes updating
loop information MUCH easier.

llvm-svn: 13045

execute other CallGraphSCCPasses after the inliner without crashing.

llvm-svn: 12861

llvm-svn: 12857

llvm-svn: 12856

Now we collect all of the call sites we are interested in inlining, then inline
them.  This entirely avoids issues with trying to inline a call site we got by
inlining another call site.  This also eliminates iterator invalidation issues.

llvm-svn: 12770

extracted all 63 loops for Olden/bh without crashing and without
miscompiling the program!!!

llvm-svn: 12491

exit nodes

llvm-svn: 12490

llvm-svn: 12483

horrible hack.

llvm-svn: 12423