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1; RUN: llc -O0 -mtriple=spirv32-unknown-unknown %s -o - | FileCheck %s --check-prefix=CHECK-SPIRV2; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv32-unknown-unknown %s -o - -filetype=obj | spirv-val %}3 4;; This test checks that the backend is capable to correctly translate5;; barrier OpenCL C 1.2 built-in function [1] into corresponding SPIR-V6;; instruction.7 8;; FIXME: Strictly speaking, this flag is not supported by barrier in OpenCL 1.29;; #define CLK_IMAGE_MEM_FENCE 0x0410;;11;; void __attribute__((overloadable)) __attribute__((convergent)) barrier(cl_mem_fence_flags);12;;13;; __kernel void test_barrier_const_flags() {14;; barrier(CLK_LOCAL_MEM_FENCE);15;; barrier(CLK_GLOBAL_MEM_FENCE);16;; barrier(CLK_IMAGE_MEM_FENCE);17;;18;; barrier(CLK_LOCAL_MEM_FENCE | CLK_GLOBAL_MEM_FENCE);19;; barrier(CLK_LOCAL_MEM_FENCE | CLK_IMAGE_MEM_FENCE);20;; barrier(CLK_GLOBAL_MEM_FENCE | CLK_LOCAL_MEM_FENCE | CLK_IMAGE_MEM_FENCE);21;; }22;;23;; __kernel void test_barrier_non_const_flags(cl_mem_fence_flags flags) {24 ;; FIXME: OpenCL spec doesn't require flags to be compile-time known25 ;; barrier(flags);26;; }27 28; CHECK-SPIRV-DAG: OpName %[[#TEST_CONST_FLAGS:]] "test_barrier_const_flags"29; CHECK-SPIRV-DAG: %[[#UINT:]] = OpTypeInt 32 030 31;; In SPIR-V, barrier is represented as OpControlBarrier [3] and OpenCL32;; cl_mem_fence_flags are represented as part of Memory Semantics [2], which33;; also includes memory order constraints. The backend applies some default34;; memory order for OpControlBarrier and therefore, constants below include a35;; bit more information than original source36 37;; 0x10 SequentiallyConsistent + 0x100 WorkgroupMemory38; CHECK-SPIRV-DAG: %[[#LOCAL:]] = OpConstant %[[#UINT]] 272{{$}}39;; 0x2 Workgroup40; CHECK-SPIRV-DAG: %[[#WG:]] = OpConstant %[[#UINT]] 2{{$}}41;; 0x10 SequentiallyConsistent + 0x200 CrossWorkgroupMemory42; CHECK-SPIRV-DAG: %[[#GLOBAL:]] = OpConstant %[[#UINT]] 528{{$}}43;; 0x10 SequentiallyConsistent + 0x800 ImageMemory44; CHECK-SPIRV-DAG: %[[#IMAGE:]] = OpConstant %[[#UINT]] 2064{{$}}45;; 0x10 SequentiallyConsistent + 0x100 WorkgroupMemory + 0x200 CrossWorkgroupMemory46; CHECK-SPIRV-DAG: %[[#LOCAL_GLOBAL:]] = OpConstant %[[#UINT]] 784{{$}}47;; 0x10 SequentiallyConsistent + 0x100 WorkgroupMemory + 0x800 ImageMemory48; CHECK-SPIRV-DAG: %[[#LOCAL_IMAGE:]] = OpConstant %[[#UINT]] 2320{{$}}49;; 0x10 SequentiallyConsistent + 0x100 WorkgroupMemory + 0x200 CrossWorkgroupMemory + 0x800 ImageMemory50; CHECK-SPIRV-DAG: %[[#LOCAL_GLOBAL_IMAGE:]] = OpConstant %[[#UINT]] 2832{{$}}51 52; CHECK-SPIRV: %[[#TEST_CONST_FLAGS]] = OpFunction %[[#]]53; CHECK-SPIRV: OpControlBarrier %[[#WG]] %[[#WG]] %[[#LOCAL]]54; CHECK-SPIRV: OpControlBarrier %[[#WG]] %[[#WG]] %[[#GLOBAL]]55; CHECK-SPIRV: OpControlBarrier %[[#WG]] %[[#WG]] %[[#IMAGE]]56; CHECK-SPIRV: OpControlBarrier %[[#WG]] %[[#WG]] %[[#LOCAL_GLOBAL]]57; CHECK-SPIRV: OpControlBarrier %[[#WG]] %[[#WG]] %[[#LOCAL_IMAGE]]58; CHECK-SPIRV: OpControlBarrier %[[#WG]] %[[#WG]] %[[#LOCAL_GLOBAL_IMAGE]]59 60define dso_local spir_kernel void @test_barrier_const_flags() local_unnamed_addr {61entry:62 tail call spir_func void @_Z7barrierj(i32 noundef 1)63 tail call spir_func void @_Z7barrierj(i32 noundef 2)64 tail call spir_func void @_Z7barrierj(i32 noundef 4)65 tail call spir_func void @_Z7barrierj(i32 noundef 3)66 tail call spir_func void @_Z7barrierj(i32 noundef 5)67 tail call spir_func void @_Z7barrierj(i32 noundef 7)68 ret void69}70 71declare spir_func void @_Z7barrierj(i32 noundef) local_unnamed_addr72 73define dso_local spir_kernel void @test_barrier_non_const_flags(i32 noundef %flags) local_unnamed_addr {74entry:75 ret void76}77 78;; References:79;; [1]: https://www.khronos.org/registry/OpenCL/sdk/1.2/docs/man/xhtml/barrier.html80;; [2]: https://www.khronos.org/registry/spir-v/specs/unified1/SPIRV.html#_a_id_memory_semantics__id_a_memory_semantics_lt_id_gt81;; [3]: https://www.khronos.org/registry/spir-v/specs/unified1/SPIRV.html#OpControlBarrier82