Improve invalid-ir-print-after-failure.mlir to show the effects of -mlir-print-assume-verified (NFC)

Author: joker-eph

mlir/test/Pass/invalid-ir-print-after-failure.mlir

@@ -1,12 +1,16 @@
-// RUN: not mlir-opt %s -pass-pipeline='func.func(test-pass-create-invalid-ir{emit-invalid-ir=true signal-pass-failure=true})' -mlir-print-ir-after-failure 2>&1 | FileCheck %s --check-prefix=CHECK-INVALID
-// RUN: not mlir-opt %s -pass-pipeline='func.func(test-pass-create-invalid-ir{emit-invalid-ir=true signal-pass-failure=false})' -mlir-print-ir-after-failure 2>&1 | FileCheck %s --check-prefix=CHECK-INVALID
-// RUN: not mlir-opt %s -pass-pipeline='func.func(test-pass-create-invalid-ir{emit-invalid-ir=false signal-pass-failure=true})' -mlir-print-ir-after-failure 2>&1  | FileCheck %s --check-prefix=CHECK-VALID
-// RUN: mlir-opt %s -pass-pipeline='func.func(test-pass-create-invalid-ir{emit-invalid-ir=false signal-pass-failure=false})' -mlir-print-ir-after-failure 2>&1  | FileCheck %s --check-prefix=CHECK-VALID
+// RUN: not mlir-opt %s -pass-pipeline='func.func(test-pass-create-invalid-ir{emit-invalid-ir=true signal-pass-failure=true})' -mlir-print-ir-after-failure 2>&1 | FileCheck %s --check-prefix=CHECK-GENERIC
+// RUN: not mlir-opt %s -pass-pipeline='func.func(test-pass-create-invalid-ir{emit-invalid-ir=true signal-pass-failure=false})' -mlir-print-ir-after-failure 2>&1 | FileCheck %s --check-prefix=CHECK-GENERIC
+// RUN: not mlir-opt %s -pass-pipeline='func.func(test-pass-create-invalid-ir{emit-invalid-ir=false signal-pass-failure=true})' -mlir-print-ir-after-failure 2>&1  | FileCheck %s --check-prefix=CHECK-CUSTOM
+// RUN: mlir-opt %s -pass-pipeline='func.func(test-pass-create-invalid-ir{emit-invalid-ir=false signal-pass-failure=false})' -mlir-print-ir-after-failure 2>&1  | FileCheck %s --check-prefix=CHECK-CUSTOM
+
+// Check that `-mlir-print-assume-verified` will print custom even when the IR is invalid.
+// RUN: not mlir-opt %s -pass-pipeline='func.func(test-pass-create-invalid-ir{emit-invalid-ir=true signal-pass-failure=true})' -mlir-print-ir-after-failure 2>&1 -mlir-print-assume-verified | FileCheck %s --check-prefix=CHECK-CUSTOM
+// RUN: not mlir-opt %s -pass-pipeline='func.func(test-pass-create-invalid-ir{emit-invalid-ir=true signal-pass-failure=false})' -mlir-print-ir-after-failure 2>&1 -mlir-print-assume-verified | FileCheck %s --check-prefix=CHECK-CUSTOM
 
 // Test whether we print generically or not on pass failure, depending on whether there is invalid IR or not.
 
-// CHECK-VALID: func @TestCreateInvalidCallInPass
-// CHECK-INVALID: "func.func"
+// CHECK-CUSTOM: func @TestCreateInvalidCallInPass
+// CHECK-GENERIC: "func.func"
 func @TestCreateInvalidCallInPass() {
   return
 }