Displaying 1 result from an estimated 1 matches for "r127440".
2011 Jul 11
1
[LLVMdev] FW: Help understanding r127440
...ile trying to
build tinyXML for ARM with LLVM 2.8. The bug seems to originate in
DAGCombiner. LLVM 2.9 still has this bug, but top of trunk does not.
To narrow down what change fixed it, I've used a binary search of
revisions from 2.9 to top of trunk. The bytecode compiles once I back
ported r127440 to LLVM 2.8. Hurray! But I don't understand why it
fixes my bug.
I'd love to know more. Especially, I'd like to produce a C/C++ snippet
which repros the problem on a small scale.
Your revision description indicates "Avoid replacing the value of a
directly stored load wit...