[libclc] 89/291: Add atomic_sub and atomic_dec builtin functions

[Andreas Beckmann]

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anbe pushed a commit to branch master
in repository libclc.

commit d00ce85a6b60a1e21294c079e640775f8bf0ba3d
Author: Aaron Watry <awatry at gmail.com>
Date:   Fri Sep 6 20:20:21 2013 +0000

    Add atomic_sub and atomic_dec builtin functions
    
    Reviewed-by: Tom Stellard <thomas.stellard at amd.com>
    
    git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@190201 91177308-0d34-0410-b5e6-96231b3b80d8
---
 generic/include/clc/atomic/atomic_dec.h |  1 +
 generic/include/clc/atomic/atomic_sub.h |  3 +++
 generic/include/clc/clc.h               |  2 ++
 generic/lib/atomic/atomic_impl.ll       | 12 ++++++++++++
 r600/lib/atomic/atomic.cl               |  1 +
 5 files changed, 19 insertions(+)

diff --git a/generic/include/clc/atomic/atomic_dec.h b/generic/include/clc/atomic/atomic_dec.h
new file mode 100644
index 0000000..621905f
--- /dev/null
+++ b/generic/include/clc/atomic/atomic_dec.h
@@ -0,0 +1 @@
+#define atomic_dec(p) atomic_sub(p, 1);
diff --git a/generic/include/clc/atomic/atomic_sub.h b/generic/include/clc/atomic/atomic_sub.h
new file mode 100644
index 0000000..576a3ab
--- /dev/null
+++ b/generic/include/clc/atomic/atomic_sub.h
@@ -0,0 +1,3 @@
+#define __CLC_FUNCTION atomic_sub
+#include <clc/atomic/atomic_decl.inc>
+#undef __CLC_FUNCTION
diff --git a/generic/include/clc/clc.h b/generic/include/clc/clc.h
index 105180e..aeb3949 100644
--- a/generic/include/clc/clc.h
+++ b/generic/include/clc/clc.h
@@ -101,6 +101,8 @@
 
 /* 6.11.11 Atomic Functins */
 #include <clc/atomic/atomic_add.h>
+#include <clc/atomic/atomic_dec.h>
 #include <clc/atomic/atomic_inc.h>
+#include <clc/atomic/atomic_sub.h>
 
 #pragma OPENCL EXTENSION all : disable
diff --git a/generic/lib/atomic/atomic_impl.ll b/generic/lib/atomic/atomic_impl.ll
index c11383b..9df5b9f 100644
--- a/generic/lib/atomic/atomic_impl.ll
+++ b/generic/lib/atomic/atomic_impl.ll
@@ -9,3 +9,15 @@ entry:
   %0 = atomicrmw volatile add i32 addrspace(3)* %ptr, i32 %value seq_cst
   ret i32 %0
 }
+
+define i32 @__clc_atomic_sub_addr1(i32 addrspace(1)* nocapture %ptr, i32 %value) nounwind alwaysinline {
+entry:
+  %0 = atomicrmw volatile sub i32 addrspace(1)* %ptr, i32 %value seq_cst
+  ret i32 %0
+}
+
+define i32 @__clc_atomic_sub_addr3(i32 addrspace(3)* nocapture %ptr, i32 %value) nounwind alwaysinline {
+entry:
+  %0 = atomicrmw volatile sub i32 addrspace(3)* %ptr, i32 %value seq_cst
+  ret i32 %0
+}
diff --git a/r600/lib/atomic/atomic.cl b/r600/lib/atomic/atomic.cl
index e80180c..bd5ee64 100644
--- a/r600/lib/atomic/atomic.cl
+++ b/r600/lib/atomic/atomic.cl
@@ -18,3 +18,4 @@ _CLC_OVERLOAD _CLC_DEF SIGN TYPE FUNCTION (volatile CL_ADDRSPACE SIGN TYPE *p, S
 	ATOMIC_FUNC_ADDRSPACE(int, FUNCTION)
 
 ATOMIC_FUNC(atomic_add)
+ATOMIC_FUNC(atomic_sub)

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