Displaying 2 results from an estimated 2 matches for "mergeblockintosuccessor".
2011 Feb 01
0
[LLVMdev] Loop simplification
Here's what I've got so far - it seems to work, aside from the fact that
DeleteDeadPHIs is not removing at least one dead PHI in my test program.
---------------------
static bool
mergeBlockIntoSuccessor(BasicBlock *pred, BasicBlock *succ)
{
if (succ == pred)
return false;
if (pred->getFirstNonPHI() != pred->getTerminator())
return false;
// Delete the terminator in the predecessor block
pred->getTerminator()->eraseFromParent();
// Update pr...
2011 Feb 01
3
[LLVMdev] Loop simplification
On Feb 1, 2011, at 1:34 PM, Andrew Trick wrote:
> On Feb 1, 2011, at 1:08 PM, Andrew Clinton wrote:
>
>> I have a (non-entry) basic block that contains only PHI nodes and an
>> unconditional branch (that does not branch to itself). Is it always
>> possible to merge this block with it's successor and produce a
>> semantically equivalent program? I'm