2 Commits

Author SHA1 Message Date
Matt Arsenault
d019e8638a Enable FeatureFlatForGlobal on Volcanic Islands
This switches to the workaround that HSA defaults to
for the mesa path.

This should be applied to the 4.0 branch.

Patch by Vedran Miletić <vedran@miletic.net>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292982 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-24 22:02:15 +00:00
Nicolai Haehnle
e299df1799 AMDGPU: Properly implement SIRegisterInfo::isFrameOffsetLegal and needsFrameBaseReg
Summary:
Without the fix to isFrameOffsetLegal to consider the instruction's
immediate offset, the new test case hits the corresponding assertion in
resolveFrameIndex, because the LocalStackSlotAllocation pass re-uses a
different base register.

With only the fix to isFrameOffsetLegal, code quality reduces in a bunch of
places because frame base registers are added where they're not needed.
This is addressed by properly implementing needsFrameBaseReg, which also
helps to avoid unnecessary zero frame indices in a bunch of other places.

Fixes piglit glsl-1.50/execution/variable-indexing/gs-output-array-vec4-index-wr.shader_test

Reviewers: arsenm, tstellarAMD

Subscribers: qcolombet, kzhuravl, wdng, yaxunl, tony-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D27344

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289048 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-08 14:08:02 +00:00