forked from OSchip/llvm-project
60 lines
2.0 KiB
MLIR
60 lines
2.0 KiB
MLIR
// RUN: mlir-opt -allow-unregistered-dialect -split-input-file -test-merge-blocks -verify-diagnostics %s | FileCheck %s
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// CHECK-LABEL: @merge_blocks
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func @merge_blocks(%arg0: i32, %arg1 : i32) -> () {
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// CHECK: "test.merge_blocks"() ( {
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// CHECK-NEXT: "test.return"
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// CHECK-NEXT: })
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// CHECK-NEXT: "test.return"
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%0:2 = "test.merge_blocks"() ({
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^bb0:
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"test.br"(%arg0, %arg1)[^bb1] : (i32, i32) -> ()
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^bb1(%arg3 : i32, %arg4 : i32):
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"test.return"(%arg3, %arg4) : (i32, i32) -> ()
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}) : () -> (i32, i32)
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"test.return"(%0#0, %0#1) : (i32, i32) -> ()
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}
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// -----
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// The op in this function is rewritten to itself (and thus remains
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// illegal) by a pattern that merges the second block with the first
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// after adding an operation into it. Check that we can undo block
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// removal successfully.
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// CHECK-LABEL: @undo_blocks_merge
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func @undo_blocks_merge(%arg0: i32) {
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"test.undo_blocks_merge"() ({
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// expected-remark@-1 {{op 'test.undo_blocks_merge' is not legalizable}}
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// CHECK: "unregistered.return"(%{{.*}})[^[[BB:.*]]]
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"unregistered.return"(%arg0)[^bb1] : (i32) -> ()
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// expected-remark@-1 {{op 'unregistered.return' is not legalizable}}
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// CHECK: ^[[BB]]
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^bb1(%arg1 : i32):
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// CHECK: "unregistered.return"
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"unregistered.return"(%arg1) : (i32) -> ()
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// expected-remark@-1 {{op 'unregistered.return' is not legalizable}}
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}) : () -> ()
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}
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// -----
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// CHECK-LABEL: @inline_regions()
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func @inline_regions() -> ()
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{
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// CHECK: test.SingleBlockImplicitTerminator
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// CHECK-NEXT: %[[T0:.*]] = "test.type_producer"
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// CHECK-NEXT: "test.type_consumer"(%[[T0]])
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// CHECK-NEXT: "test.finish"
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"test.SingleBlockImplicitTerminator"() ({
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^bb0:
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%0 = "test.type_producer"() : () -> i32
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"test.SingleBlockImplicitTerminator"() ({
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^bb1:
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"test.type_consumer"(%0) : (i32) -> ()
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"test.finish"() : () -> ()
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}) : () -> ()
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"test.finish"() : () -> ()
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}) : () -> ()
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"test.return"() : () -> ()
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}
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