tree daff3405def3505d59aa2115bdcf129803da9df7
parent 1d647e5d602f206363edeb975f174f02def44052
author Sam Parker <sam.parker@arm.com> 1550741598 +0000
committer Sam Parker <sam.parker@arm.com> 1550741598 +0000

[ARM] Negative constants mishandled in ARM CGP

During type promotion, sometimes we convert negative an add with a
negative constant into a sub with a positive constant. The loop that
performs this transformation has two issues:
- it iterates over a set, causing non-determinism.
- it breaks, instead of continuing, when it finds the first
  non-negative operand.

Differential Revision: https://reviews.llvm.org/D58452


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354557 91177308-0d34-0410-b5e6-96231b3b80d8