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[AMDGPU] Unify early PS termination blocks

Authored by critson on Jul 2 2020, 5:57 PM.

Description

[AMDGPU] Unify early PS termination blocks

Generate a single early exit block out-of-line and branch to this
if all lanes are killed. This avoids branching if lanes are active.

Reviewed By: nhaehnle

Differential Revision: https://reviews.llvm.org/D82641

Details

Committed
critsonJul 2 2020, 5:58 PM
Reviewer
nhaehnle
Differential Revision
D82641: [AMDGPU] Unify early PS termination blocks
Parents
rG4e958c1748a9: [flang] External I/O runtime work, repackaged (part 2)
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