r600: Initial support

This includes a get_global_id() implementation and function stubs for
the other workitem and synchronization functions.

git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@184975 91177308-0d34-0410-b5e6-96231b3b80d8

10 files changed, 30 insertions, 1 deletions

diff --git a/configure.py b/configure.py
index 9ae49b7..4f63c5b 100755
--- a/configure.py
+++ b/configure.py
@@ -43,7 +43,7 @@ llvm_clang = os.path.join(llvm_bindir, 'clang')
 llvm_link = os.path.join(llvm_bindir, 'llvm-link')
 llvm_opt = os.path.join(llvm_bindir, 'opt')
 
-default_targets = ['nvptx--nvidiacl', 'nvptx64--nvidiacl']
+default_targets = ['nvptx--nvidiacl', 'nvptx64--nvidiacl', 'r600--']
 
 targets = args
 if not targets:
diff --git a/r600/include/clc/synchronization/barrier.h b/r600/include/clc/synchronization/barrier.h
new file mode 100644
index 0000000..7f150d4
--- /dev/null
+++ b/r600/include/clc/synchronization/barrier.h
@@ -0,0 +1,2 @@
+_CLC_INLINE void barrier(cl_mem_fence_flags flags) {
+}
diff --git a/r600/include/clc/workitem/get_global_id.h b/r600/include/clc/workitem/get_global_id.h
new file mode 100644
index 0000000..b61450f
--- /dev/null
+++ b/r600/include/clc/workitem/get_global_id.h
@@ -0,0 +1 @@
+size_t get_global_id(uint dim);
diff --git a/r600/include/clc/workitem/get_global_size.h b/r600/include/clc/workitem/get_global_size.h
new file mode 100644
index 0000000..afd9ae1
--- /dev/null
+++ b/r600/include/clc/workitem/get_global_size.h
@@ -0,0 +1,3 @@
+_CLC_INLINE size_t get_global_size(uint dim) {
+  return 0;
+}
diff --git a/r600/include/clc/workitem/get_group_id.h b/r600/include/clc/workitem/get_group_id.h
new file mode 100644
index 0000000..6862dba
--- /dev/null
+++ b/r600/include/clc/workitem/get_group_id.h
@@ -0,0 +1,3 @@
+_CLC_INLINE size_t get_group_id(uint dim) {
+  return 0;
+}
diff --git a/r600/include/clc/workitem/get_local_id.h b/r600/include/clc/workitem/get_local_id.h
new file mode 100644
index 0000000..22749cd
--- /dev/null
+++ b/r600/include/clc/workitem/get_local_id.h
@@ -0,0 +1,3 @@
+_CLC_INLINE size_t get_local_id(uint dim) {
+  return 0;
+}
diff --git a/r600/include/clc/workitem/get_local_size.h b/r600/include/clc/workitem/get_local_size.h
new file mode 100644
index 0000000..51d9762
--- /dev/null
+++ b/r600/include/clc/workitem/get_local_size.h
@@ -0,0 +1,3 @@
+_CLC_INLINE size_t get_local_size(uint dim) {
+  return 0;
+}
diff --git a/r600/include/clc/workitem/get_num_groups.h b/r600/include/clc/workitem/get_num_groups.h
new file mode 100644
index 0000000..fe1f343
--- /dev/null
+++ b/r600/include/clc/workitem/get_num_groups.h
@@ -0,0 +1,3 @@
+_CLC_INLINE size_t get_num_groups(uint dim) {
+  return 0;
+}
diff --git a/r600/lib/SOURCES b/r600/lib/SOURCES
new file mode 100644
index 0000000..0844030
--- /dev/null
+++ b/r600/lib/SOURCES
@@ -0,0 +1 @@
+workitem/get_global_id.cl
diff --git a/r600/lib/workitem/get_global_id.cl b/r600/lib/workitem/get_global_id.cl
new file mode 100644
index 0000000..9b0bd94
--- /dev/null
+++ b/r600/lib/workitem/get_global_id.cl
@@ -0,0 +1,10 @@
+#include <clc/clc.h>
+
+_CLC_DEF size_t get_global_id(uint dim) {
+  switch (dim) {
+  case 0:  return __builtin_r600_read_tgid_x()*__builtin_r600_read_ngroups_x()+__builtin_r600_read_tidig_x();
+  case 1:  return __builtin_r600_read_tgid_y()*__builtin_r600_read_ngroups_y()+__builtin_r600_read_tidig_y();
+  case 2:  return __builtin_r600_read_tgid_z()*__builtin_r600_read_ngroups_z()+__builtin_r600_read_tidig_z();
+  default: return 0;
+  }
+}