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|
// RUN: mlir-opt -convert-spirv-to-llvm='use-opaque-pointers=1' -split-input-file -verify-diagnostics %s | FileCheck %s
//===----------------------------------------------------------------------===//
// spirv.Branch
//===----------------------------------------------------------------------===//
spirv.module Logical GLSL450 {
spirv.func @branch_without_arguments() -> () "None" {
// CHECK: llvm.br ^bb1
spirv.Branch ^label
// CHECK: ^bb1
^label:
spirv.Return
}
spirv.func @branch_with_arguments() -> () "None" {
%0 = spirv.Constant 0 : i32
%1 = spirv.Constant true
// CHECK: llvm.br ^bb1(%{{.*}}, %{{.*}} : i32, i1)
spirv.Branch ^label(%0, %1: i32, i1)
// CHECK: ^bb1(%{{.*}}: i32, %{{.*}}: i1)
^label(%arg0: i32, %arg1: i1):
spirv.Return
}
}
// -----
//===----------------------------------------------------------------------===//
// spirv.BranchConditional
//===----------------------------------------------------------------------===//
spirv.module Logical GLSL450 {
spirv.func @cond_branch_without_arguments() -> () "None" {
// CHECK: %[[COND:.*]] = llvm.mlir.constant(true) : i1
%cond = spirv.Constant true
// CHECK: lvm.cond_br %[[COND]], ^bb1, ^bb2
spirv.BranchConditional %cond, ^true, ^false
// CHECK: ^bb1:
^true:
spirv.Return
// CHECK: ^bb2:
^false:
spirv.Return
}
spirv.func @cond_branch_with_arguments_nested() -> () "None" {
// CHECK: %[[COND1:.*]] = llvm.mlir.constant(true) : i1
%cond = spirv.Constant true
%0 = spirv.Constant 0 : i32
// CHECK: %[[COND2:.*]] = llvm.mlir.constant(false) : i1
%false = spirv.Constant false
// CHECK: llvm.cond_br %[[COND1]], ^bb1(%{{.*}}, %[[COND2]] : i32, i1), ^bb2
spirv.BranchConditional %cond, ^outer_true(%0, %false: i32, i1), ^outer_false
// CHECK: ^bb1(%{{.*}}: i32, %[[COND:.*]]: i1):
^outer_true(%arg0: i32, %arg1: i1):
// CHECK: llvm.cond_br %[[COND]], ^bb3, ^bb4(%{{.*}}, %{{.*}} : i32, i32)
spirv.BranchConditional %arg1, ^inner_true, ^inner_false(%arg0, %arg0: i32, i32)
// CHECK: ^bb2:
^outer_false:
spirv.Return
// CHECK: ^bb3:
^inner_true:
spirv.Return
// CHECK: ^bb4(%{{.*}}: i32, %{{.*}}: i32):
^inner_false(%arg3: i32, %arg4: i32):
spirv.Return
}
spirv.func @cond_branch_with_weights(%cond: i1) -> () "None" {
// CHECK: llvm.cond_br %{{.*}} weights([1, 2]), ^bb1, ^bb2
spirv.BranchConditional %cond [1, 2], ^true, ^false
// CHECK: ^bb1:
^true:
spirv.Return
// CHECK: ^bb2:
^false:
spirv.Return
}
}
// -----
//===----------------------------------------------------------------------===//
// spirv.mlir.loop
//===----------------------------------------------------------------------===//
spirv.module Logical GLSL450 {
// CHECK-LABEL: @infinite_loop
spirv.func @infinite_loop(%count : i32) -> () "None" {
// CHECK: llvm.br ^[[BB1:.*]]
// CHECK: ^[[BB1]]:
// CHECK: %[[COND:.*]] = llvm.mlir.constant(true) : i1
// CHECK: llvm.cond_br %[[COND]], ^[[BB2:.*]], ^[[BB4:.*]]
// CHECK: ^[[BB2]]:
// CHECK: llvm.br ^[[BB3:.*]]
// CHECK: ^[[BB3]]:
// CHECK: llvm.br ^[[BB1:.*]]
// CHECK: ^[[BB4]]:
// CHECK: llvm.br ^[[BB5:.*]]
// CHECK: ^[[BB5]]:
// CHECK: llvm.return
spirv.mlir.loop {
spirv.Branch ^header
^header:
%cond = spirv.Constant true
spirv.BranchConditional %cond, ^body, ^merge
^body:
// Do nothing
spirv.Branch ^continue
^continue:
// Do nothing
spirv.Branch ^header
^merge:
spirv.mlir.merge
}
spirv.Return
}
}
// -----
//===----------------------------------------------------------------------===//
// spirv.mlir.selection
//===----------------------------------------------------------------------===//
spirv.module Logical GLSL450 {
spirv.func @selection_empty() -> () "None" {
// CHECK: llvm.return
spirv.mlir.selection {
}
spirv.Return
}
spirv.func @selection_with_merge_block_only() -> () "None" {
%cond = spirv.Constant true
// CHECK: llvm.return
spirv.mlir.selection {
spirv.BranchConditional %cond, ^merge, ^merge
^merge:
spirv.mlir.merge
}
spirv.Return
}
spirv.func @selection_with_true_block_only() -> () "None" {
// CHECK: %[[COND:.*]] = llvm.mlir.constant(true) : i1
%cond = spirv.Constant true
// CHECK: llvm.cond_br %[[COND]], ^bb1, ^bb2
spirv.mlir.selection {
spirv.BranchConditional %cond, ^true, ^merge
// CHECK: ^bb1:
^true:
// CHECK: llvm.br ^bb2
spirv.Branch ^merge
// CHECK: ^bb2:
^merge:
// CHECK: llvm.br ^bb3
spirv.mlir.merge
}
// CHECK: ^bb3:
// CHECK-NEXT: llvm.return
spirv.Return
}
spirv.func @selection_with_both_true_and_false_block() -> () "None" {
// CHECK: %[[COND:.*]] = llvm.mlir.constant(true) : i1
%cond = spirv.Constant true
// CHECK: llvm.cond_br %[[COND]], ^bb1, ^bb2
spirv.mlir.selection {
spirv.BranchConditional %cond, ^true, ^false
// CHECK: ^bb1:
^true:
// CHECK: llvm.br ^bb3
spirv.Branch ^merge
// CHECK: ^bb2:
^false:
// CHECK: llvm.br ^bb3
spirv.Branch ^merge
// CHECK: ^bb3:
^merge:
// CHECK: llvm.br ^bb4
spirv.mlir.merge
}
// CHECK: ^bb4:
// CHECK-NEXT: llvm.return
spirv.Return
}
spirv.func @selection_with_early_return(%arg0: i1) -> i32 "None" {
// CHECK: %[[ZERO:.*]] = llvm.mlir.constant(0 : i32) : i32
%0 = spirv.Constant 0 : i32
// CHECK: llvm.cond_br %{{.*}}, ^bb1(%[[ZERO]] : i32), ^bb2
spirv.mlir.selection {
spirv.BranchConditional %arg0, ^true(%0 : i32), ^merge
// CHECK: ^bb1(%[[ARG:.*]]: i32):
^true(%arg1: i32):
// CHECK: llvm.return %[[ARG]] : i32
spirv.ReturnValue %arg1 : i32
// CHECK: ^bb2:
^merge:
// CHECK: llvm.br ^bb3
spirv.mlir.merge
}
// CHECK: ^bb3:
%one = spirv.Constant 1 : i32
spirv.ReturnValue %one : i32
}
}
|
