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[AMDGPU] SiFixSGPRCopies should not modify non-divergent PHI

Authored by Alexander Timofeev <Alexander.Timofeev@amd.com> on Dec 1 2017, 3:56 AM.

Description

[AMDGPU] SiFixSGPRCopies should not modify non-divergent PHI

Differential revision: https://reviews.llvm.org/D40556

llvm-svn: 319534

Event Timeline

Alexander Timofeev <Alexander.Timofeev@amd.com> committed rGc1425c9d6b76: [AMDGPU] SiFixSGPRCopies should not modify non-divergent PHI (authored by Alexander Timofeev <Alexander.Timofeev@amd.com>).Dec 1 2017, 3:56 AM