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// RUN: mlir-translate -split-input-file -test-spirv-roundtrip %s | FileCheck %s
// Test branch with one block argument
spv.module Logical GLSL450 requires #spv.vce<v1.0, [Shader], []> {
spv.func @foo() -> () "None" {
// CHECK: %[[CST:.*]] = spv.constant 0
%zero = spv.constant 0 : i32
// CHECK-NEXT: spv.Branch ^bb1(%[[CST]] : i32)
spv.Branch ^bb1(%zero : i32)
// CHECK-NEXT: ^bb1(%{{.*}}: i32):
^bb1(%arg0: i32):
spv.Return
}
spv.func @main() -> () "None" {
spv.Return
}
spv.EntryPoint "GLCompute" @main
}
// -----
// Test branch with multiple block arguments
spv.module Logical GLSL450 requires #spv.vce<v1.0, [Shader], []> {
spv.func @foo() -> () "None" {
// CHECK: %[[ZERO:.*]] = spv.constant 0
%zero = spv.constant 0 : i32
// CHECK-NEXT: %[[ONE:.*]] = spv.constant 1
%one = spv.constant 1.0 : f32
// CHECK-NEXT: spv.Branch ^bb1(%[[ZERO]], %[[ONE]] : i32, f32)
spv.Branch ^bb1(%zero, %one : i32, f32)
// CHECK-NEXT: ^bb1(%{{.*}}: i32, %{{.*}}: f32): // pred: ^bb0
^bb1(%arg0: i32, %arg1: f32):
spv.Return
}
spv.func @main() -> () "None" {
spv.Return
}
spv.EntryPoint "GLCompute" @main
}
// -----
// Test using block arguments within branch
spv.module Logical GLSL450 requires #spv.vce<v1.0, [Shader], []> {
spv.func @foo() -> () "None" {
// CHECK: %[[CST0:.*]] = spv.constant 0
%zero = spv.constant 0 : i32
// CHECK-NEXT: spv.Branch ^bb1(%[[CST0]] : i32)
spv.Branch ^bb1(%zero : i32)
// CHECK-NEXT: ^bb1(%[[ARG:.*]]: i32):
^bb1(%arg0: i32):
// CHECK-NEXT: %[[ADD:.*]] = spv.IAdd %[[ARG]], %[[ARG]] : i32
%0 = spv.IAdd %arg0, %arg0 : i32
// CHECK-NEXT: %[[CST1:.*]] = spv.constant 0
// CHECK-NEXT: spv.Branch ^bb2(%[[CST1]], %[[ADD]] : i32, i32)
spv.Branch ^bb2(%zero, %0 : i32, i32)
// CHECK-NEXT: ^bb2(%{{.*}}: i32, %{{.*}}: i32):
^bb2(%arg1: i32, %arg2: i32):
spv.Return
}
spv.func @main() -> () "None" {
spv.Return
}
spv.EntryPoint "GLCompute" @main
}
// -----
// Test block not following domination order
spv.module Logical GLSL450 requires #spv.vce<v1.0, [Shader], []> {
spv.func @foo() -> () "None" {
// CHECK: spv.Branch ^bb1
spv.Branch ^bb1
// CHECK-NEXT: ^bb1:
// CHECK-NEXT: %[[ZERO:.*]] = spv.constant 0
// CHECK-NEXT: %[[ONE:.*]] = spv.constant 1
// CHECK-NEXT: spv.Branch ^bb2(%[[ZERO]], %[[ONE]] : i32, f32)
// CHECK-NEXT: ^bb2(%{{.*}}: i32, %{{.*}}: f32):
^bb2(%arg0: i32, %arg1: f32):
// CHECK-NEXT: spv.Return
spv.Return
// This block is reordered to follow domination order.
^bb1:
%zero = spv.constant 0 : i32
%one = spv.constant 1.0 : f32
spv.Branch ^bb2(%zero, %one : i32, f32)
}
spv.func @main() -> () "None" {
spv.Return
}
spv.EntryPoint "GLCompute" @main
}
// -----
// Test multiple predecessors
spv.module Logical GLSL450 requires #spv.vce<v1.0, [Shader], []> {
spv.func @foo() -> () "None" {
%var = spv.Variable : !spv.ptr<i32, Function>
// CHECK: spv.selection
spv.selection {
%true = spv.constant true
// CHECK: spv.BranchConditional %{{.*}}, ^bb1, ^bb2
spv.BranchConditional %true, ^true, ^false
// CHECK-NEXT: ^bb1:
^true:
// CHECK-NEXT: %[[ZERO:.*]] = spv.constant 0
%zero = spv.constant 0 : i32
// CHECK-NEXT: spv.Branch ^bb3(%[[ZERO]] : i32)
spv.Branch ^phi(%zero: i32)
// CHECK-NEXT: ^bb2:
^false:
// CHECK-NEXT: %[[ONE:.*]] = spv.constant 1
%one = spv.constant 1 : i32
// CHECK-NEXT: spv.Branch ^bb3(%[[ONE]] : i32)
spv.Branch ^phi(%one: i32)
// CHECK-NEXT: ^bb3(%[[ARG:.*]]: i32):
^phi(%arg: i32):
// CHECK-NEXT: spv.Store "Function" %{{.*}}, %[[ARG]] : i32
spv.Store "Function" %var, %arg : i32
// CHECK-NEXT: spv.Return
spv.Return
// CHECK-NEXT: ^bb4:
^merge:
// CHECK-NEXT: spv.mlir.merge
spv.mlir.merge
}
spv.Return
}
spv.func @main() -> () "None" {
spv.Return
}
spv.EntryPoint "GLCompute" @main
}
// -----
// Test nested loops with block arguments
spv.module Logical GLSL450 requires #spv.vce<v1.0, [Shader], []> {
spv.globalVariable @__builtin_var_NumWorkgroups__ built_in("NumWorkgroups") : !spv.ptr<vector<3xi32>, Input>
spv.globalVariable @__builtin_var_WorkgroupId__ built_in("WorkgroupId") : !spv.ptr<vector<3xi32>, Input>
spv.func @fmul_kernel() "None" {
%3 = spv.constant 12 : i32
%4 = spv.constant 32 : i32
%5 = spv.constant 4 : i32
%6 = spv.mlir.addressof @__builtin_var_WorkgroupId__ : !spv.ptr<vector<3xi32>, Input>
%7 = spv.Load "Input" %6 : vector<3xi32>
%8 = spv.CompositeExtract %7[0 : i32] : vector<3xi32>
%9 = spv.mlir.addressof @__builtin_var_WorkgroupId__ : !spv.ptr<vector<3xi32>, Input>
%10 = spv.Load "Input" %9 : vector<3xi32>
%11 = spv.CompositeExtract %10[1 : i32] : vector<3xi32>
%18 = spv.mlir.addressof @__builtin_var_NumWorkgroups__ : !spv.ptr<vector<3xi32>, Input>
%19 = spv.Load "Input" %18 : vector<3xi32>
%20 = spv.CompositeExtract %19[0 : i32] : vector<3xi32>
%21 = spv.mlir.addressof @__builtin_var_NumWorkgroups__ : !spv.ptr<vector<3xi32>, Input>
%22 = spv.Load "Input" %21 : vector<3xi32>
%23 = spv.CompositeExtract %22[1 : i32] : vector<3xi32>
%30 = spv.IMul %11, %4 : i32
%31 = spv.IMul %23, %4 : i32
// CHECK: spv.Branch ^[[FN_BB:.*]](%{{.*}} : i32)
// CHECK: ^[[FN_BB]](%[[FN_BB_ARG:.*]]: i32):
// CHECK: spv.loop {
spv.loop {
// CHECK: spv.Branch ^bb1(%[[FN_BB_ARG]] : i32)
spv.Branch ^bb1(%30 : i32)
// CHECK: ^[[LP1_HDR:.*]](%[[LP1_HDR_ARG:.*]]: i32):
^bb1(%32: i32):
// CHECK: spv.SLessThan
%33 = spv.SLessThan %32, %3 : i32
// CHECK: spv.BranchConditional %{{.*}}, ^[[LP1_BDY:.*]], ^[[LP1_MG:.*]]
spv.BranchConditional %33, ^bb2, ^bb3
// CHECK: ^[[LP1_BDY]]:
^bb2:
// CHECK: %[[MUL:.*]] = spv.IMul
%34 = spv.IMul %8, %5 : i32
// CHECK: spv.IMul
%35 = spv.IMul %20, %5 : i32
// CHECK: spv.Branch ^[[LP1_CNT:.*]](%[[MUL]] : i32)
// CHECK: ^[[LP1_CNT]](%[[LP1_CNT_ARG:.*]]: i32):
// CHECK: spv.loop {
spv.loop {
// CHECK: spv.Branch ^[[LP2_HDR:.*]](%[[LP1_CNT_ARG]] : i32)
spv.Branch ^bb1(%34 : i32)
// CHECK: ^[[LP2_HDR]](%[[LP2_HDR_ARG:.*]]: i32):
^bb1(%37: i32):
// CHECK: spv.SLessThan %[[LP2_HDR_ARG]]
%38 = spv.SLessThan %37, %5 : i32
// CHECK: spv.BranchConditional %{{.*}}, ^[[LP2_BDY:.*]], ^[[LP2_MG:.*]]
spv.BranchConditional %38, ^bb2, ^bb3
// CHECK: ^[[LP2_BDY]]:
^bb2:
// CHECK: %[[ADD1:.*]] = spv.IAdd
%48 = spv.IAdd %37, %35 : i32
// CHECK: spv.Branch ^[[LP2_HDR]](%[[ADD1]] : i32)
spv.Branch ^bb1(%48 : i32)
// CHECK: ^[[LP2_MG]]:
^bb3:
// CHECK: spv.mlir.merge
spv.mlir.merge
}
// CHECK: %[[ADD2:.*]] = spv.IAdd %[[LP1_HDR_ARG]]
%36 = spv.IAdd %32, %31 : i32
// CHECK: spv.Branch ^[[LP1_HDR]](%[[ADD2]] : i32)
spv.Branch ^bb1(%36 : i32)
// CHECK: ^[[LP1_MG]]:
^bb3:
// CHECK: spv.mlir.merge
spv.mlir.merge
}
spv.Return
}
spv.EntryPoint "GLCompute" @fmul_kernel, @__builtin_var_WorkgroupId__, @__builtin_var_NumWorkgroups__
spv.ExecutionMode @fmul_kernel "LocalSize", 32, 1, 1
}
// -----
// Test back-to-back loops with block arguments
spv.module Logical GLSL450 requires #spv.vce<v1.0, [Shader], []> {
spv.func @fmul_kernel() "None" {
%cst4 = spv.constant 4 : i32
%val1 = spv.constant 43 : i32
%val2 = spv.constant 44 : i32
// CHECK: spv.constant 43
// CHECK-NEXT: spv.Branch ^[[BB1:.+]](%{{.+}} : i32)
// CHECK-NEXT: ^[[BB1]](%{{.+}}: i32):
// CHECK-NEXT: spv.loop
spv.loop { // loop 1
spv.Branch ^bb1(%val1 : i32)
^bb1(%loop1_bb_arg: i32):
%loop1_lt = spv.SLessThan %loop1_bb_arg, %cst4 : i32
spv.BranchConditional %loop1_lt, ^bb2, ^bb3
^bb2:
%loop1_add = spv.IAdd %loop1_bb_arg, %cst4 : i32
spv.Branch ^bb1(%loop1_add : i32)
^bb3:
spv.mlir.merge
}
// CHECK: spv.constant 44
// CHECK-NEXT: spv.Branch ^[[BB2:.+]](%{{.+}} : i32)
// CHECK-NEXT: ^[[BB2]](%{{.+}}: i32):
// CHECK-NEXT: spv.loop
spv.loop { // loop 2
spv.Branch ^bb1(%val2 : i32)
^bb1(%loop2_bb_arg: i32):
%loop2_lt = spv.SLessThan %loop2_bb_arg, %cst4 : i32
spv.BranchConditional %loop2_lt, ^bb2, ^bb3
^bb2:
%loop2_add = spv.IAdd %loop2_bb_arg, %cst4 : i32
spv.Branch ^bb1(%loop2_add : i32)
^bb3:
spv.mlir.merge
}
spv.Return
}
spv.EntryPoint "GLCompute" @fmul_kernel
spv.ExecutionMode @fmul_kernel "LocalSize", 32, 1, 1
}