1 files changed, 29 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/disconnected-predset-break-bug.ll b/llvm/test/CodeGen/AMDGPU/disconnected-predset-break-bug.ll
new file mode 100644
index 00000000000..cdd2c0cd4f4
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/disconnected-predset-break-bug.ll
@@ -0,0 +1,29 @@
+; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
+
+; PRED_SET* instructions must be tied to any instruction that uses their
+; result.  This tests that there are no instructions between the PRED_SET*
+; and the PREDICATE_BREAK in this loop.
+
+; CHECK: {{^}}loop_ge:
+; CHECK: LOOP_START_DX10
+; CHECK: ALU_PUSH_BEFORE
+; CHECK-NEXT: JUMP
+; CHECK-NEXT: LOOP_BREAK
+define void @loop_ge(i32 addrspace(1)* nocapture %out, i32 %iterations) nounwind {
+entry:
+  %cmp5 = icmp sgt i32 %iterations, 0
+  br i1 %cmp5, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.body, %entry
+  %i.07.in = phi i32 [ %i.07, %for.body ], [ %iterations, %entry ]
+  %ai.06 = phi i32 [ %add, %for.body ], [ 0, %entry ]
+  %i.07 = add nsw i32 %i.07.in, -1
+  %arrayidx = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %ai.06
+  store i32 %i.07, i32 addrspace(1)* %arrayidx, align 4
+  %add = add nsw i32 %ai.06, 1
+  %exitcond = icmp eq i32 %add, %iterations
+  br i1 %exitcond, label %for.end, label %for.body
+
+for.end:                                          ; preds = %for.body, %entry
+  ret void
+}