From 6f8e5151853f7387bb4060b18a7cbe707b72c912 Mon Sep 17 00:00:00 2001
From: Konstantin Zhuravlyov <kzhuravl_dev@outlook.com>
Date: Thu, 26 Oct 2017 17:54:09 +0000
Subject: [PATCH] AMDGPU: Commit missing fence-barrier test

This should have been committed with memory model implementation

llvm-svn: 316680
---
 llvm/test/CodeGen/AMDGPU/fence-barrier.ll | 197 ++++++++++++++++++++++
 1 file changed, 197 insertions(+)
 create mode 100644 llvm/test/CodeGen/AMDGPU/fence-barrier.ll

diff --git a/llvm/test/CodeGen/AMDGPU/fence-barrier.ll b/llvm/test/CodeGen/AMDGPU/fence-barrier.ll
new file mode 100644
index 000000000000..4748de570a96
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/fence-barrier.ll
@@ -0,0 +1,197 @@
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx803 -enable-si-insert-waitcnts=1 -verify-machineinstrs < %s | FileCheck --check-prefix=GCN %s
+
+declare i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr()
+declare i8 addrspace(2)* @llvm.amdgcn.implicitarg.ptr()
+declare i32 @llvm.amdgcn.workitem.id.x()
+declare i32 @llvm.amdgcn.workgroup.id.x()
+declare void @llvm.amdgcn.s.barrier()
+
+@test_local.temp = internal addrspace(3) global [1 x i32] undef, align 4
+@test_global_local.temp = internal addrspace(3) global [1 x i32] undef, align 4
+
+; GCN-LABEL: {{^}}test_local
+; GCN: v_mov_b32_e32 v[[VAL:[0-9]+]], 0x777
+; GCN: ds_write_b32 v{{[0-9]+}}, v[[VAL]]
+; GCN: s_waitcnt lgkmcnt(0){{$}}
+; GCN-NEXT: s_barrier
+; GCN: flat_store_dword
+define amdgpu_kernel void @test_local(i32 addrspace(1)*) {
+  %2 = alloca i32 addrspace(1)*, align 4
+  store i32 addrspace(1)* %0, i32 addrspace(1)** %2, align 4
+  %3 = call i32 @llvm.amdgcn.workitem.id.x()
+  %4 = zext i32 %3 to i64
+  %5 = icmp eq i64 %4, 0
+  br i1 %5, label %6, label %7
+
+; <label>:6:                                      ; preds = %1
+  store i32 1911, i32 addrspace(3)* getelementptr inbounds ([1 x i32], [1 x i32] addrspace(3)* @test_local.temp, i64 0, i64 0), align 4
+  br label %7
+
+; <label>:7:                                      ; preds = %6, %1
+  fence syncscope("workgroup") release
+  call void @llvm.amdgcn.s.barrier()
+  fence syncscope("workgroup") acquire
+  %8 = load i32, i32 addrspace(3)* getelementptr inbounds ([1 x i32], [1 x i32] addrspace(3)* @test_local.temp, i64 0, i64 0), align 4
+  %9 = load i32 addrspace(1)*, i32 addrspace(1)** %2, align 4
+  %10 = call i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr()
+  %11 = call i32 @llvm.amdgcn.workitem.id.x()
+  %12 = call i32 @llvm.amdgcn.workgroup.id.x()
+  %13 = getelementptr inbounds i8, i8 addrspace(2)* %10, i64 4
+  %14 = bitcast i8 addrspace(2)* %13 to i16 addrspace(2)*
+  %15 = load i16, i16 addrspace(2)* %14, align 4
+  %16 = zext i16 %15 to i32
+  %17 = mul i32 %12, %16
+  %18 = add i32 %17, %11
+  %19 = call i8 addrspace(2)* @llvm.amdgcn.implicitarg.ptr()
+  %20 = zext i32 %18 to i64
+  %21 = bitcast i8 addrspace(2)* %19 to i64 addrspace(2)*
+  %22 = load i64, i64 addrspace(2)* %21, align 8
+  %23 = add i64 %22, %20
+  %24 = getelementptr inbounds i32, i32 addrspace(1)* %9, i64 %23
+  store i32 %8, i32 addrspace(1)* %24, align 4
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_global
+; GCN: v_add_i32_e32 v{{[0-9]+}}, vcc, 0x888, v{{[0-9]+}}
+; GCN: flat_store_dword
+; GCN: s_waitcnt vmcnt(0) lgkmcnt(0){{$}}
+; GCN-NEXT: s_barrier
+define amdgpu_kernel void @test_global(i32 addrspace(1)*) {
+  %2 = alloca i32 addrspace(1)*, align 4
+  %3 = alloca i32, align 4
+  store i32 addrspace(1)* %0, i32 addrspace(1)** %2, align 4
+  store i32 0, i32* %3, align 4
+  br label %4
+
+; <label>:4:                                      ; preds = %58, %1
+  %5 = load i32, i32* %3, align 4
+  %6 = sext i32 %5 to i64
+  %7 = call i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr()
+  %8 = call i32 @llvm.amdgcn.workitem.id.x()
+  %9 = call i32 @llvm.amdgcn.workgroup.id.x()
+  %10 = getelementptr inbounds i8, i8 addrspace(2)* %7, i64 4
+  %11 = bitcast i8 addrspace(2)* %10 to i16 addrspace(2)*
+  %12 = load i16, i16 addrspace(2)* %11, align 4
+  %13 = zext i16 %12 to i32
+  %14 = mul i32 %9, %13
+  %15 = add i32 %14, %8
+  %16 = call i8 addrspace(2)* @llvm.amdgcn.implicitarg.ptr()
+  %17 = zext i32 %15 to i64
+  %18 = bitcast i8 addrspace(2)* %16 to i64 addrspace(2)*
+  %19 = load i64, i64 addrspace(2)* %18, align 8
+  %20 = add i64 %19, %17
+  %21 = icmp ult i64 %6, %20
+  br i1 %21, label %22, label %61
+
+; <label>:22:                                     ; preds = %4
+  %23 = call i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr()
+  %24 = call i32 @llvm.amdgcn.workitem.id.x()
+  %25 = call i32 @llvm.amdgcn.workgroup.id.x()
+  %26 = getelementptr inbounds i8, i8 addrspace(2)* %23, i64 4
+  %27 = bitcast i8 addrspace(2)* %26 to i16 addrspace(2)*
+  %28 = load i16, i16 addrspace(2)* %27, align 4
+  %29 = zext i16 %28 to i32
+  %30 = mul i32 %25, %29
+  %31 = add i32 %30, %24
+  %32 = call i8 addrspace(2)* @llvm.amdgcn.implicitarg.ptr()
+  %33 = zext i32 %31 to i64
+  %34 = bitcast i8 addrspace(2)* %32 to i64 addrspace(2)*
+  %35 = load i64, i64 addrspace(2)* %34, align 8
+  %36 = add i64 %35, %33
+  %37 = add i64 %36, 2184
+  %38 = trunc i64 %37 to i32
+  %39 = load i32 addrspace(1)*, i32 addrspace(1)** %2, align 4
+  %40 = load i32, i32* %3, align 4
+  %41 = sext i32 %40 to i64
+  %42 = call i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr()
+  %43 = call i32 @llvm.amdgcn.workitem.id.x()
+  %44 = call i32 @llvm.amdgcn.workgroup.id.x()
+  %45 = getelementptr inbounds i8, i8 addrspace(2)* %42, i64 4
+  %46 = bitcast i8 addrspace(2)* %45 to i16 addrspace(2)*
+  %47 = load i16, i16 addrspace(2)* %46, align 4
+  %48 = zext i16 %47 to i32
+  %49 = mul i32 %44, %48
+  %50 = add i32 %49, %43
+  %51 = call i8 addrspace(2)* @llvm.amdgcn.implicitarg.ptr()
+  %52 = zext i32 %50 to i64
+  %53 = bitcast i8 addrspace(2)* %51 to i64 addrspace(2)*
+  %54 = load i64, i64 addrspace(2)* %53, align 8
+  %55 = add i64 %54, %52
+  %56 = add i64 %41, %55
+  %57 = getelementptr inbounds i32, i32 addrspace(1)* %39, i64 %56
+  store i32 %38, i32 addrspace(1)* %57, align 4
+  fence syncscope("workgroup") release
+  call void @llvm.amdgcn.s.barrier()
+  fence syncscope("workgroup") acquire
+  br label %58
+
+; <label>:58:                                     ; preds = %22
+  %59 = load i32, i32* %3, align 4
+  %60 = add nsw i32 %59, 1
+  store i32 %60, i32* %3, align 4
+  br label %4
+
+; <label>:61:                                     ; preds = %4
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_global_local
+; GCN: v_mov_b32_e32 v[[VAL:[0-9]+]], 0x999
+; GCN: ds_write_b32 v{{[0-9]+}}, v[[VAL]]
+; GCN: s_waitcnt vmcnt(0) lgkmcnt(0){{$}}
+; GCN-NEXT: s_barrier
+; GCN: flat_store_dword
+define amdgpu_kernel void @test_global_local(i32 addrspace(1)*) {
+  %2 = alloca i32 addrspace(1)*, align 4
+  store i32 addrspace(1)* %0, i32 addrspace(1)** %2, align 4
+  %3 = load i32 addrspace(1)*, i32 addrspace(1)** %2, align 4
+  %4 = call i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr()
+  %5 = call i32 @llvm.amdgcn.workitem.id.x()
+  %6 = call i32 @llvm.amdgcn.workgroup.id.x()
+  %7 = getelementptr inbounds i8, i8 addrspace(2)* %4, i64 4
+  %8 = bitcast i8 addrspace(2)* %7 to i16 addrspace(2)*
+  %9 = load i16, i16 addrspace(2)* %8, align 4
+  %10 = zext i16 %9 to i32
+  %11 = mul i32 %6, %10
+  %12 = add i32 %11, %5
+  %13 = call i8 addrspace(2)* @llvm.amdgcn.implicitarg.ptr()
+  %14 = zext i32 %12 to i64
+  %15 = bitcast i8 addrspace(2)* %13 to i64 addrspace(2)*
+  %16 = load i64, i64 addrspace(2)* %15, align 8
+  %17 = add i64 %16, %14
+  %18 = getelementptr inbounds i32, i32 addrspace(1)* %3, i64 %17
+  store i32 1, i32 addrspace(1)* %18, align 4
+  %19 = call i32 @llvm.amdgcn.workitem.id.x()
+  %20 = zext i32 %19 to i64
+  %21 = icmp eq i64 %20, 0
+  br i1 %21, label %22, label %23
+
+; <label>:22:                                     ; preds = %1
+  store i32 2457, i32 addrspace(3)* getelementptr inbounds ([1 x i32], [1 x i32] addrspace(3)* @test_global_local.temp, i64 0, i64 0), align 4
+  br label %23
+
+; <label>:23:                                     ; preds = %22, %1
+  fence syncscope("workgroup") release
+  call void @llvm.amdgcn.s.barrier()
+  fence syncscope("workgroup") acquire
+  %24 = load i32, i32 addrspace(3)* getelementptr inbounds ([1 x i32], [1 x i32] addrspace(3)* @test_global_local.temp, i64 0, i64 0), align 4
+  %25 = load i32 addrspace(1)*, i32 addrspace(1)** %2, align 4
+  %26 = call i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr()
+  %27 = call i32 @llvm.amdgcn.workitem.id.x()
+  %28 = call i32 @llvm.amdgcn.workgroup.id.x()
+  %29 = getelementptr inbounds i8, i8 addrspace(2)* %26, i64 4
+  %30 = bitcast i8 addrspace(2)* %29 to i16 addrspace(2)*
+  %31 = load i16, i16 addrspace(2)* %30, align 4
+  %32 = zext i16 %31 to i32
+  %33 = mul i32 %28, %32
+  %34 = add i32 %33, %27
+  %35 = call i8 addrspace(2)* @llvm.amdgcn.implicitarg.ptr()
+  %36 = zext i32 %34 to i64
+  %37 = bitcast i8 addrspace(2)* %35 to i64 addrspace(2)*
+  %38 = load i64, i64 addrspace(2)* %37, align 8
+  %39 = add i64 %38, %36
+  %40 = getelementptr inbounds i32, i32 addrspace(1)* %25, i64 %39
+  store i32 %24, i32 addrspace(1)* %40, align 4
+  ret void
+}