[libclc] 218/291: r600: Use llvm intrinsic to read work dimension information

[Andreas Beckmann]

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commit 2e96770d444d8014fa0710a7af6f70b95074b609
Author: Jan Vesely <jan.vesely at rutgers.edu>
Date:   Wed Oct 15 15:08:06 2014 +0000

    r600: Use llvm intrinsic to read work dimension information
    
    v2: Fix function declaration
        Add range metadata to r600 implementation
    v3: change prefix to AMDGPU
    
    Reviewed-by: Tom Stellard <tom at stellard.net>
    Signed-off-by: Jan Vesely <jan.vesely at rutgers.edu>
    
    git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@219793 91177308-0d34-0410-b5e6-96231b3b80d8
---
 generic/include/clc/workitem/get_work_dim.h | 1 +
 r600/lib/SOURCES                            | 1 +
 r600/lib/workitem/get_work_dim.ll           | 8 ++++++++
 3 files changed, 10 insertions(+)

diff --git a/generic/include/clc/workitem/get_work_dim.h b/generic/include/clc/workitem/get_work_dim.h
new file mode 100644
index 0000000..6d19825
--- /dev/null
+++ b/generic/include/clc/workitem/get_work_dim.h
@@ -0,0 +1 @@
+_CLC_DECL uint get_work_dim();
diff --git a/r600/lib/SOURCES b/r600/lib/SOURCES
index ba56605..ef23d83 100644
--- a/r600/lib/SOURCES
+++ b/r600/lib/SOURCES
@@ -5,5 +5,6 @@ workitem/get_group_id.ll
 workitem/get_local_size.ll
 workitem/get_local_id.ll
 workitem/get_global_size.ll
+workitem/get_work_dim.ll
 synchronization/barrier.cl
 synchronization/barrier_impl.ll
diff --git a/r600/lib/workitem/get_work_dim.ll b/r600/lib/workitem/get_work_dim.ll
new file mode 100644
index 0000000..b02ef74
--- /dev/null
+++ b/r600/lib/workitem/get_work_dim.ll
@@ -0,0 +1,8 @@
+declare i32 @llvm.AMDGPU.read.workdim() nounwind readnone
+
+define i32 @get_work_dim() nounwind readnone alwaysinline {
+  %x = call i32 @llvm.AMDGPU.read.workdim() nounwind readnone , !range !0
+  ret i32 %x
+}
+
+!0 = metadata !{ i8 1, i8 2, i8 3 }

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