6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-25 13:24:46 +00:00
Code Issues Projects Releases Wiki Activity

[SeparateConstOffsetFromGEP] Fixed a bug in rebuilding OR expressions

Browse Source 
The two operands of the new OR expression should be NextInChain and TheOther
instead of the two original operands.

Added a regression test in split-gep.ll.

Hao Liu reported this bug, and provded the test case and an initial patch.
Thanks! 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220615 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jingyue Wu
2014-10-25 17:36:21 +00:00
parent c31aaa5a3f
commit 5c50ab84b3
2 changed files with 26 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp
View File

@@ -519,8 +519,13 @@ Value *ConstantOffsetExtractor::removeConstOffset(unsigned ChainIndex) {
//
// Replacing the "or" with "add" is fine, because
// a | (b + 5) = a + (b + 5) = (a + b) + 5
return BinaryOperator::CreateAdd(BO->getOperand(0), BO->getOperand(1),
BO->getName(), IP);
if (OpNo == 0) {
return BinaryOperator::CreateAdd(NextInChain, TheOther, BO->getName(),
IP);
} else {
return BinaryOperator::CreateAdd(TheOther, NextInChain, BO->getName(),
IP);
}
}
// We can reuse BO in this case, because the new expression shares the same