R600: Do not predicated basic block with multiple alu clause
Test is not included as it is several 1000 lines long.
To test this functionnality, a test case must generate at least 2 ALU clauses,
where an ALU clause is ~110 instructions long.
NOTE: This is a candidate for the stable branch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185943 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/R600/R600ControlFlowFinalizer.cpp b/lib/Target/R600/R600ControlFlowFinalizer.cpp
index 887c808..932a6a7 100644
--- a/lib/Target/R600/R600ControlFlowFinalizer.cpp
+++ b/lib/Target/R600/R600ControlFlowFinalizer.cpp
@@ -256,6 +256,7 @@
ClauseContent.push_back(MILit);
}
}
+ assert(ClauseContent.size() < 128 && "ALU clause is too big");
ClauseHead->getOperand(7).setImm(ClauseContent.size() - 1);
return ClauseFile(ClauseHead, ClauseContent);
}
@@ -276,6 +277,7 @@
void
EmitALUClause(MachineBasicBlock::iterator InsertPos, ClauseFile &Clause,
unsigned &CfCount) {
+ Clause.first->getOperand(0).setImm(0);
CounterPropagateAddr(Clause.first, CfCount);
MachineBasicBlock *BB = Clause.first->getParent();
BuildMI(BB, InsertPos->getDebugLoc(), TII->get(AMDGPU::ALU_CLAUSE))