4bba8bd33e
When changing IR in a RewriterPattern, all changes must go through the rewriter. There are several convenience functions in RewriterBase that help with high-level modifications, such as replaceAllUsesWith for Values, but there is currently none to do the same task for Blocks. Reviewed By: mehdi_amini, ingomueller-net Differential Revision: https://reviews.llvm.org/D142525
86 lines
2.9 KiB
MLIR
86 lines
2.9 KiB
MLIR
// RUN: mlir-opt \
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// RUN: -test-strict-pattern-driver="strictness=AnyOp" \
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// RUN: --split-input-file %s | FileCheck %s --check-prefix=CHECK-AN
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// RUN: mlir-opt \
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// RUN: -test-strict-pattern-driver="strictness=ExistingAndNewOps" \
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// RUN: --split-input-file %s | FileCheck %s --check-prefix=CHECK-EN
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// RUN: mlir-opt \
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// RUN: -test-strict-pattern-driver="strictness=ExistingOps" \
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// RUN: --split-input-file %s | FileCheck %s --check-prefix=CHECK-EX
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// CHECK-EN-LABEL: func @test_erase
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// CHECK-EN-SAME: pattern_driver_all_erased = true, pattern_driver_changed = true}
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// CHECK-EN: test.arg0
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// CHECK-EN: test.arg1
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// CHECK-EN-NOT: test.erase_op
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func.func @test_erase() {
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%0 = "test.arg0"() : () -> (i32)
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%1 = "test.arg1"() : () -> (i32)
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%erase = "test.erase_op"(%0, %1) : (i32, i32) -> (i32)
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return
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}
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// -----
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// CHECK-EN-LABEL: func @test_insert_same_op
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// CHECK-EN-SAME: {pattern_driver_all_erased = false, pattern_driver_changed = true}
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// CHECK-EN: "test.insert_same_op"() {skip = true}
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// CHECK-EN: "test.insert_same_op"() {skip = true}
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func.func @test_insert_same_op() {
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%0 = "test.insert_same_op"() : () -> (i32)
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return
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}
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// -----
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// CHECK-EN-LABEL: func @test_replace_with_new_op
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// CHECK-EN-SAME: {pattern_driver_all_erased = true, pattern_driver_changed = true}
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// CHECK-EN: %[[n:.*]] = "test.new_op"
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// CHECK-EN: "test.dummy_user"(%[[n]])
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// CHECK-EN: "test.dummy_user"(%[[n]])
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func.func @test_replace_with_new_op() {
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%0 = "test.replace_with_new_op"() : () -> (i32)
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%1 = "test.dummy_user"(%0) : (i32) -> (i32)
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%2 = "test.dummy_user"(%0) : (i32) -> (i32)
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return
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}
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// -----
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// CHECK-EN-LABEL: func @test_replace_with_erase_op
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// CHECK-EN-SAME: {pattern_driver_all_erased = true, pattern_driver_changed = true}
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// CHECK-EN-NOT: test.replace_with_new_op
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// CHECK-EN-NOT: test.erase_op
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// CHECK-EX-LABEL: func @test_replace_with_erase_op
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// CHECK-EX-SAME: {pattern_driver_all_erased = true, pattern_driver_changed = true}
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// CHECK-EX-NOT: test.replace_with_new_op
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// CHECK-EX: test.erase_op
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func.func @test_replace_with_erase_op() {
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"test.replace_with_new_op"() {create_erase_op} : () -> ()
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return
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}
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// -----
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// CHECK-AN-LABEL: func @test_trigger_rewrite_through_block
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// CHECK-AN: "test.change_block_op"()[^[[BB0:.*]], ^[[BB0]]]
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// CHECK-AN: return
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// CHECK-AN: ^[[BB1:[^:]*]]:
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// CHECK-AN: "test.implicit_change_op"()[^[[BB1]]]
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func.func @test_trigger_rewrite_through_block() {
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return
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^bb1:
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// Uses bb1. ChangeBlockOp replaces that and all other usages of bb1 with bb2.
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"test.change_block_op"() [^bb1, ^bb2] : () -> ()
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^bb2:
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return
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^bb3:
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// Also uses bb1. ChangeBlockOp replaces that usage with bb2. This triggers
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// this op being put on the worklist, which triggers ImplicitChangeOp, which,
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// in turn, replaces the successor with bb3.
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"test.implicit_change_op"() [^bb1] : () -> ()
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}
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