Sanjoy Das 54e3386b64 [SimplifyCFG] Don't create PHI nodes for constant bundle operands ...

Summary:
Constant bundle operands may need to retain their constant-ness for
correctness.  I'll admit that this is slightly odd, but it looks like
SimplifyCFG already does this for things like @llvm.frameaddress and
@llvm.stackmap, so I suppose adding one more case is not a big deal.

It is possible to add a mechanism to denote bundle operands that need to
remain constants, but that's probably too complicated for the time
being.

Reviewers: jmolloy

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D25502

llvm-svn: 284028

2016-10-12 18:15:33 +00:00

..

llvm

[SimplifyCFG] Don't create PHI nodes for constant bundle operands

2016-10-12 18:15:33 +00:00

llvm-c

[C API] Add LLVMConstExactUDiv and LLVMBuildExactUDiv functions.

2016-10-04 23:32:42 +00:00