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SPIR-V encodes the read_only and write_only access qualifiers of pipes, so separate LLVM IR types are required to target SPIR-V. Other backends may also find this useful. These new types are `opencl.pipe_ro_t` and `opencl.pipe_wo_t`, which replace `opencl.pipe_t`. This replaces __get_pipe_num_packets(...) and __get_pipe_max_packets(...) which took a read_only pipe with separate versions for read_only and write_only pipes, namely: * __get_pipe_num_packets_ro(...) * __get_pipe_num_packets_wo(...) * __get_pipe_max_packets_ro(...) * __get_pipe_max_packets_wo(...) These separate versions exist to avoid needing a bitcast to one of the two qualified pipe types. Patch by Stuart Brady. Differential Revision: https://reviews.llvm.org/D46015 llvm-svn: 331026
94 lines
4.6 KiB
Common Lisp
94 lines
4.6 KiB
Common Lisp
// RUN: %clang_cc1 -emit-llvm -cl-ext=+cl_khr_subgroups -O0 -cl-std=CL2.0 -o - %s | FileCheck %s
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// CHECK-DAG: %opencl.pipe_ro_t = type opaque
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// CHECK-DAG: %opencl.pipe_wo_t = type opaque
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// CHECK-DAG: %opencl.reserve_id_t = type opaque
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#pragma OPENCL EXTENSION cl_khr_subgroups : enable
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void test1(read_only pipe int p, global int *ptr) {
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// CHECK: call i32 @__read_pipe_2(%opencl.pipe_ro_t* %{{.*}}, i8* %{{.*}}, i32 4, i32 4)
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read_pipe(p, ptr);
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// CHECK: call %opencl.reserve_id_t* @__reserve_read_pipe(%opencl.pipe_ro_t* %{{.*}}, i32 {{.*}}, i32 4, i32 4)
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reserve_id_t rid = reserve_read_pipe(p, 2);
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// CHECK: call i32 @__read_pipe_4(%opencl.pipe_ro_t* %{{.*}}, %opencl.reserve_id_t* %{{.*}}, i32 {{.*}}, i8* %{{.*}}, i32 4, i32 4)
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read_pipe(p, rid, 2, ptr);
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// CHECK: call void @__commit_read_pipe(%opencl.pipe_ro_t* %{{.*}}, %opencl.reserve_id_t* %{{.*}}, i32 4, i32 4)
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commit_read_pipe(p, rid);
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}
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void test2(write_only pipe int p, global int *ptr) {
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// CHECK: call i32 @__write_pipe_2(%opencl.pipe_wo_t* %{{.*}}, i8* %{{.*}}, i32 4, i32 4)
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write_pipe(p, ptr);
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// CHECK: call %opencl.reserve_id_t* @__reserve_write_pipe(%opencl.pipe_wo_t* %{{.*}}, i32 {{.*}}, i32 4, i32 4)
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reserve_id_t rid = reserve_write_pipe(p, 2);
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// CHECK: call i32 @__write_pipe_4(%opencl.pipe_wo_t* %{{.*}}, %opencl.reserve_id_t* %{{.*}}, i32 {{.*}}, i8* %{{.*}}, i32 4, i32 4)
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write_pipe(p, rid, 2, ptr);
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// CHECK: call void @__commit_write_pipe(%opencl.pipe_wo_t* %{{.*}}, %opencl.reserve_id_t* %{{.*}}, i32 4, i32 4)
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commit_write_pipe(p, rid);
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}
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void test3(read_only pipe int p, global int *ptr) {
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// CHECK: call %opencl.reserve_id_t* @__work_group_reserve_read_pipe(%opencl.pipe_ro_t* %{{.*}}, i32 {{.*}}, i32 4, i32 4)
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reserve_id_t rid = work_group_reserve_read_pipe(p, 2);
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// CHECK: call void @__work_group_commit_read_pipe(%opencl.pipe_ro_t* %{{.*}}, %opencl.reserve_id_t* %{{.*}}, i32 4, i32 4)
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work_group_commit_read_pipe(p, rid);
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}
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void test4(write_only pipe int p, global int *ptr) {
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// CHECK: call %opencl.reserve_id_t* @__work_group_reserve_write_pipe(%opencl.pipe_wo_t* %{{.*}}, i32 {{.*}}, i32 4, i32 4)
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reserve_id_t rid = work_group_reserve_write_pipe(p, 2);
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// CHECK: call void @__work_group_commit_write_pipe(%opencl.pipe_wo_t* %{{.*}}, %opencl.reserve_id_t* %{{.*}}, i32 4, i32 4)
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work_group_commit_write_pipe(p, rid);
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}
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void test5(read_only pipe int p, global int *ptr) {
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// CHECK: call %opencl.reserve_id_t* @__sub_group_reserve_read_pipe(%opencl.pipe_ro_t* %{{.*}}, i32 {{.*}}, i32 4, i32 4)
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reserve_id_t rid = sub_group_reserve_read_pipe(p, 2);
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// CHECK: call void @__sub_group_commit_read_pipe(%opencl.pipe_ro_t* %{{.*}}, %opencl.reserve_id_t* %{{.*}}, i32 4, i32 4)
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sub_group_commit_read_pipe(p, rid);
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}
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void test6(write_only pipe int p, global int *ptr) {
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// CHECK: call %opencl.reserve_id_t* @__sub_group_reserve_write_pipe(%opencl.pipe_wo_t* %{{.*}}, i32 {{.*}}, i32 4, i32 4)
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reserve_id_t rid = sub_group_reserve_write_pipe(p, 2);
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// CHECK: call void @__sub_group_commit_write_pipe(%opencl.pipe_wo_t* %{{.*}}, %opencl.reserve_id_t* %{{.*}}, i32 4, i32 4)
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sub_group_commit_write_pipe(p, rid);
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}
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void test7(read_only pipe int p, global int *ptr) {
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// CHECK: call i32 @__get_pipe_num_packets_ro(%opencl.pipe_ro_t* %{{.*}}, i32 4, i32 4)
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*ptr = get_pipe_num_packets(p);
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// CHECK: call i32 @__get_pipe_max_packets_ro(%opencl.pipe_ro_t* %{{.*}}, i32 4, i32 4)
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*ptr = get_pipe_max_packets(p);
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}
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void test8(write_only pipe int p, global int *ptr) {
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// CHECK: call i32 @__get_pipe_num_packets_wo(%opencl.pipe_wo_t* %{{.*}}, i32 4, i32 4)
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*ptr = get_pipe_num_packets(p);
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// CHECK: call i32 @__get_pipe_max_packets_wo(%opencl.pipe_wo_t* %{{.*}}, i32 4, i32 4)
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*ptr = get_pipe_max_packets(p);
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}
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void test9(read_only pipe int r, write_only pipe int w, global int *ptr) {
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// verify that return type is correctly casted to i1 value
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// CHECK: %[[R:[0-9]+]] = call i32 @__read_pipe_2
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// CHECK: icmp ne i32 %[[R]], 0
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if (read_pipe(r, ptr)) *ptr = -1;
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// CHECK: %[[W:[0-9]+]] = call i32 @__write_pipe_2
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// CHECK: icmp ne i32 %[[W]], 0
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if (write_pipe(w, ptr)) *ptr = -1;
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// CHECK: %[[NR:[0-9]+]] = call i32 @__get_pipe_num_packets_ro
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// CHECK: icmp ne i32 %[[NR]], 0
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if (get_pipe_num_packets(r)) *ptr = -1;
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// CHECK: %[[NW:[0-9]+]] = call i32 @__get_pipe_num_packets_wo
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// CHECK: icmp ne i32 %[[NW]], 0
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if (get_pipe_num_packets(w)) *ptr = -1;
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// CHECK: %[[MR:[0-9]+]] = call i32 @__get_pipe_max_packets_ro
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// CHECK: icmp ne i32 %[[MR]], 0
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if (get_pipe_max_packets(r)) *ptr = -1;
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// CHECK: %[[MW:[0-9]+]] = call i32 @__get_pipe_max_packets_wo
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// CHECK: icmp ne i32 %[[MW]], 0
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if (get_pipe_max_packets(w)) *ptr = -1;
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}
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