3 files changed, 62 insertions, 0 deletions
diff --git a/amdgcn/lib/SOURCES b/amdgcn/lib/SOURCES
index c99f3fc..49c8dd5 100644
--- a/amdgcn/lib/SOURCES
+++ b/amdgcn/lib/SOURCES
@@ -1 +1,3 @@
 synchronization/barrier_impl.ll
+workitem/get_group_id.ll
+workitem/get_local_id.ll
diff --git a/amdgcn/lib/workitem/get_group_id.ll b/amdgcn/lib/workitem/get_group_id.ll
new file mode 100644
index 0000000..9d820e0
--- /dev/null
+++ b/amdgcn/lib/workitem/get_group_id.ll
@@ -0,0 +1,29 @@
+declare i32 @llvm.amdgcn.workgroup.id.x() #0
+declare i32 @llvm.amdgcn.workgroup.id.y() #0
+declare i32 @llvm.amdgcn.workgroup.id.z() #0
+
+define i32 @get_group_id(i32 %dim) #1 {
+  switch i32 %dim, label %default [
+    i32 0, label %x_dim
+    i32 1, label %y_dim
+    i32 2, label %z_dim
+  ]
+
+x_dim:
+  %x = tail call i32 @llvm.amdgcn.workgroup.id.x()
+  ret i32 %x
+
+y_dim:
+  %y = tail call i32 @llvm.amdgcn.workgroup.id.y()
+  ret i32 %y
+
+z_dim:
+  %z = tail call i32 @llvm.amdgcn.workgroup.id.z()
+  ret i32 %z
+
+default:
+  ret i32 0
+}
+
+attributes #0 = { nounwind readnone }
+attributes #1 = { alwaysinline norecurse nounwind readnone }
diff --git a/amdgcn/lib/workitem/get_local_id.ll b/amdgcn/lib/workitem/get_local_id.ll
new file mode 100644
index 0000000..c54291c
--- /dev/null
+++ b/amdgcn/lib/workitem/get_local_id.ll
@@ -0,0 +1,31 @@
+declare i32 @llvm.amdgcn.workitem.id.x() #0
+declare i32 @llvm.amdgcn.workitem.id.y() #0
+declare i32 @llvm.amdgcn.workitem.id.z() #0
+
+define i32 @get_local_id(i32 %dim) #1 {
+  switch i32 %dim, label %default [
+    i32 0, label %x_dim
+    i32 1, label %y_dim
+    i32 2, label %z_dim
+  ]
+
+x_dim:
+  %x = tail call i32 @llvm.amdgcn.workitem.id.x(), !range !0
+  ret i32 %x
+
+y_dim:
+  %y = tail call i32 @llvm.amdgcn.workitem.id.y(), !range !0
+  ret i32 %y
+
+z_dim:
+  %z = tail call i32 @llvm.amdgcn.workitem.id.z(), !range !0
+  ret i32 %z
+
+default:
+  ret i32 0
+}
+
+attributes #0 = { nounwind readnone }
+attributes #1 = { alwaysinline norecurse nounwind readnone }
+
+!0 = !{ i32 0, i32 2048 }