From: Aaron Watry <awatry@gmail.com>
Date: Fri, 6 Sep 2013 20:20:21 +0000 (+0000)
Subject: Add atomic_sub and atomic_dec builtin functions
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=283e3fa011e8052d91a41a59248a045b6b9a5c1f;p=platform%2Fupstream%2Fllvm.git

Add atomic_sub and atomic_dec builtin functions

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 190201
---

diff --git a/libclc/generic/include/clc/atomic/atomic_dec.h b/libclc/generic/include/clc/atomic/atomic_dec.h
new file mode 100644
index 0000000..621905f
--- /dev/null
+++ b/libclc/generic/include/clc/atomic/atomic_dec.h
@@ -0,0 +1 @@
+#define atomic_dec(p) atomic_sub(p, 1);
diff --git a/libclc/generic/include/clc/atomic/atomic_sub.h b/libclc/generic/include/clc/atomic/atomic_sub.h
new file mode 100644
index 0000000..576a3ab
--- /dev/null
+++ b/libclc/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/libclc/generic/include/clc/clc.h b/libclc/generic/include/clc/clc.h
index 105180e..aeb3949 100644
--- a/libclc/generic/include/clc/clc.h
+++ b/libclc/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/libclc/generic/lib/atomic/atomic_impl.ll b/libclc/generic/lib/atomic/atomic_impl.ll
index c11383b..9df5b9f3 100644
--- a/libclc/generic/lib/atomic/atomic_impl.ll
+++ b/libclc/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/libclc/r600/lib/atomic/atomic.cl b/libclc/r600/lib/atomic/atomic.cl
index e80180c..bd5ee64 100644
--- a/libclc/r600/lib/atomic/atomic.cl
+++ b/libclc/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)