6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-16 14:27:54 +00:00
Code Issues Projects Releases Wiki Activity

Fix a comment that stated the wrong thing.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21638 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2005-04-30 06:45:47 +00:00
parent 9c9183aef4
commit 63a7513ac1
1 changed files with 2 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
lib/Transforms/IPO/SimplifyLibCalls.cpp
View File

@@ -511,11 +511,8 @@ public:
virtual bool OptimizeCall(CallInst* ci, SimplifyLibCalls& SLC) virtual bool OptimizeCall(CallInst* ci, SimplifyLibCalls& SLC)
{ {
// First, check to see if src and destination are the same. If they are, // First, check to see if src and destination are the same. If they are,
// then the optimization is to replace the CallInst with the destination // then the optimization is to replace the CallInst with a constant 0
// because the call is a no-op. Note that this corresponds to the // because the call is a no-op.
// degenerate strcpy(X,X) case which should have "undefined" results
// according to the C specification. However, it occurs sometimes and
// we optimize it as a no-op.
Value* s1 = ci->getOperand(1); Value* s1 = ci->getOperand(1);
Value* s2 = ci->getOperand(2); Value* s2 = ci->getOperand(2);
if (s1 == s2) if (s1 == s2)