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-rw-r--r--utests/compiler_overflow.cpp52
1 files changed, 52 insertions, 0 deletions
diff --git a/utests/compiler_overflow.cpp b/utests/compiler_overflow.cpp
index 1404cfea..5517b5a5 100644
--- a/utests/compiler_overflow.cpp
+++ b/utests/compiler_overflow.cpp
@@ -56,6 +56,9 @@ void test(const char *kernel_name, int func_type)
U max = get_max<U>();
+ // test add and sub overflow when src1 is 1:
+ // uadd.with.overflow: max + 1
+ // usub.with.overflow: 0 - 1
OCL_MAP_BUFFER(0);
for (uint32_t i = 0; i < n; ++i) {
if(func_type == 0) {
@@ -101,6 +104,55 @@ void test(const char *kernel_name, int func_type)
OCL_ASSERT(0);
}
OCL_UNMAP_BUFFER(2);
+
+ // test add and sub overflow when src1 is max:
+ // uadd.with.overflow: max + max
+ // usub.with.overflow: 0 - max
+ OCL_MAP_BUFFER(0);
+ for (uint32_t i = 0; i < n; ++i) {
+ if(func_type == 0) {
+ ((T*)buf_data[0])[i].x = max;
+ ((T*)buf_data[0])[i].y = max;
+ ((T*)buf_data[0])[i].z = max;
+ ((T*)buf_data[0])[i].w = i;
+ }else if(func_type == 1) {
+ ((T*)buf_data[0])[i].x = 0;
+ ((T*)buf_data[0])[i].y = 0;
+ ((T*)buf_data[0])[i].z = 0;
+ ((T*)buf_data[0])[i].w = n+2-i;
+ }else
+ OCL_ASSERT(0);
+ }
+ OCL_UNMAP_BUFFER(0);
+ OCL_MAP_BUFFER(1);
+ for (uint32_t i = 0; i < n; ++i) {
+ ((T*)buf_data[1])[i].x = max;
+ ((T*)buf_data[1])[i].y = max;
+ ((T*)buf_data[1])[i].z = max;
+ ((T*)buf_data[1])[i].w = 1;
+ }
+ OCL_UNMAP_BUFFER(1);
+
+ globals[0] = n;
+ locals[0] = 16;
+ OCL_NDRANGE(1);
+ OCL_MAP_BUFFER(2);
+ for (uint32_t i = 0; i < 16; ++i) {
+ // printf("%u,%u,%u,%u\n", ((T*)buf_data[2])[i].x,((T*)buf_data[2])[i].y, ((T*)buf_data[2])[i].z, ((T*)buf_data[2])[i].w );
+ if(func_type == 0) {
+ OCL_ASSERT(((T*)buf_data[2])[i].x == max-1);
+ OCL_ASSERT(((T*)buf_data[2])[i].y == max);
+ OCL_ASSERT(((T*)buf_data[2])[i].z == max);
+ OCL_ASSERT(((T*)buf_data[2])[i].w == i+2);
+ }else if(func_type == 1) {
+ OCL_ASSERT(((T*)buf_data[2])[i].x == 1);
+ OCL_ASSERT(((T*)buf_data[2])[i].y == 0);
+ OCL_ASSERT(((T*)buf_data[2])[i].z == 0);
+ OCL_ASSERT(((T*)buf_data[2])[i].w == n-i);
+ }else
+ OCL_ASSERT(0);
+ }
+ OCL_UNMAP_BUFFER(2);
}
}