radeon/llvm: Inital flow control support for SI

This adds basic flow control support for If-Then-Else blocks using
predicates (stored in the EXEC register) and a predicate stack for
nested flow control.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gallium/drivers/radeon/AMDILCFGStructurizer.cpp b/src/gallium/drivers/radeon/AMDILCFGStructurizer.cpp
index b167d62fa0a..20e27ef1132 100644
--- a/src/gallium/drivers/radeon/AMDILCFGStructurizer.cpp
+++ b/src/gallium/drivers/radeon/AMDILCFGStructurizer.cpp
@@ -2892,6 +2892,8 @@ struct CFGStructTraits<AMDGPUCFGStructurizer>
     switch (instr->getOpcode()) {
     case AMDGPU::JUMP:
       return instr->getOperand(instr->findFirstPredOperandIdx()).getReg() == 0;
+    case AMDGPU::BRANCH:
+      return true;
     default:
       return false;
     }