6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-12 13:38:21 +00:00
Code Issues Projects Releases Wiki Activity

Avoid doing pointless work. Amazingly, this makes us go faster.

Browse Source 
Running the inliner on 252.eon used to take 48.4763s, now it takes 14.4148s.

In release mode, it went from taking 25.8741s to taking 11.5712s.

This also fixes a FIXME.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8890 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-10-06 15:23:43 +00:00
parent d5a310e4b3
commit 5f92e2b11f
2 changed files with 5 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
lib/Transforms/Utils/ValueMapper.cpp
View File

@ -13,6 +13,11 @@ Value *MapValue(const Value *V, std::map<const Value*, Value*> &VM) {
Value *&VMSlot = VM[V];
if (VMSlot) return VMSlot; // Does it exist in the map yet?
// Global values do not need to be seeded into the ValueMap if they are using
// the identity mapping.
if (isa<GlobalValue>(V))
return VMSlot = const_cast<Value*>(V);
if (Constant *C = const_cast<Constant*>(dyn_cast<Constant>(V))) {
if (isa<ConstantIntegral>(C) || isa<ConstantFP>(C) ||
isa<ConstantPointerNull>(C))