Commit Graph

3 Commits

Author SHA1 Message Date
Nicolai Haehnle bef0e90cf1 AMDGPU: Track physical registers in SIWholeQuadMode
Summary:
There are cases where uniform branch conditions are computed in VGPRs, and
we didn't correctly mark those as WQM.

The stray change in basic-branch.ll is because invoking the LiveIntervals
analysis leads to the detection of a dead register that would otherwise not
be seen at -O0.

This is a candidate for the 3.9 branch, as it fixes a possible hang.

Reviewers: arsenm, tstellarAMD, mareko

Subscribers: arsenm, llvm-commits, kzhuravl

Differential Revision: https://reviews.llvm.org/D22673

llvm-svn: 277500
2016-08-02 19:17:37 +00:00
Matt Arsenault d89c99c26a AMDGPU: Fix missing br_cc i1 test coverage
Also un xfail a test.

llvm-svn: 270739
2016-05-25 17:58:27 +00:00
Tom Stellard 45bb48ea19 R600 -> AMDGPU rename
llvm-svn: 239657
2015-06-13 03:28:10 +00:00