Marek Olsak b19dbd9eb3 R600/SI: Fix dependency between instruction writing M0 and S_SENDMSG on VI (v2) ...

This fixes a hang when using an empty geometry shader.

v2: - don't add s_nop when followed by s_waitcnt
    - comestic changes

Tested-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227986 91177308-0d34-0410-b5e6-96231b3b80d8

2015-02-03 17:37:52 +00:00

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