1// RUN: mlir-opt -allow-unregistered-dialect -mlir-print-value-users -split-input-file %s | FileCheck %s 2 3module { 4 // CHECK: %[[ARG0:.+]]: i32, %[[ARG1:.+]]: i32, %[[ARG2:.+]]: i32 5 func.func @foo(%arg0: i32, %arg1: i32, %arg3: i32) -> i32 { 6 // CHECK-NEXT: // %[[ARG0]] is used by %[[ARG0U1:.+]], %[[ARG0U2:.+]], %[[ARG0U3:.+]] 7 // CHECK-NEXT: // %[[ARG1]] is used by %[[ARG1U1:.+]], %[[ARG1U2:.+]] 8 // CHECK-NEXT: // %[[ARG2]] is unused 9 // CHECK-NEXT: test.noop 10 // CHECK-NOT: // unused 11 "test.noop"() : () -> () 12 // When no result is produced, an id should be printed. 13 // CHECK-NEXT: // id: %[[ARG0U3]] 14 "test.no_result"(%arg0) {} : (i32) -> () 15 // Check for unused result. 16 // CHECK-NEXT: %[[ARG0U2]] = 17 // CHECK-SAME: // unused 18 %1 = "test.unused_result"(%arg0, %arg1) {} : (i32, i32) -> i32 19 // Check that both users are printed. 20 // CHECK-NEXT: %[[ARG0U1]] = 21 // CHECK-SAME: // users: %[[A:.+]]#0, %[[A]]#1 22 %2 = "test.one_result"(%arg0, %arg1) {} : (i32, i32) -> i32 23 // For multiple results, users should be grouped per result. 24 // CHECK-NEXT: %[[A]]:2 = 25 // CHECK-SAME: // users: (%[[B:.+]], %[[C:.+]]), (%[[B]], %[[D:.+]]) 26 %3:2 = "test.many_results"(%2) {} : (i32) -> (i32, i32) 27 // Two results are produced, but there is only one user. 28 // CHECK-NEXT: // users: 29 %7:2 = "test.many_results"() : () -> (i32, i32) 30 // CHECK-NEXT: %[[C]] = 31 // Result is used twice in next operation but it produces only one result. 32 // CHECK-SAME: // user: 33 %4 = "test.foo"(%3#0) {} : (i32) -> i32 34 // CHECK-NEXT: %[[D]] = 35 %5 = "test.foo"(%3#1, %4, %4) {} : (i32, i32, i32) -> i32 36 // CHECK-NEXT: %[[B]] = 37 // Result is not used in any other result but in two operations. 38 // CHECK-SAME: // users: 39 %6 = "test.foo"(%3#0, %3#1) {} : (i32, i32) -> i32 40 "test.no_result"(%6) {} : (i32) -> () 41 "test.no_result"(%7#0) : (i32) -> () 42 return %6: i32 43 } 44} 45 46// ----- 47 48module { 49 // Check with nested operation. 50 // CHECK: %[[CONSTNAME:.+]] = arith.constant 51 %0 = arith.constant 42 : i32 52 %test = "test.outerop"(%0) ({ 53 // CHECK: "test.innerop"(%[[CONSTNAME]]) : (i32) -> () // id: % 54 "test.innerop"(%0) : (i32) -> () 55 // CHECK: (i32) -> i32 // users: %r, %s, %p, %p_0, %q 56 }): (i32) -> i32 57 58 // Check named results. 59 // CHECK-NEXT: // users: (%u, %v), (unused), (%u, %v, %r, %s) 60 %p:2, %q = "test.custom_result_name"(%test) {names = ["p", "p", "q"]} : (i32) -> (i32, i32, i32) 61 // CHECK-NEXT: // users: (unused), (%u, %v) 62 %r, %s = "test.custom_result_name"(%q#0, %q#0, %test) {names = ["r", "s"]} : (i32, i32, i32) -> (i32, i32) 63 // CHECK-NEXT: // unused 64 %u, %v = "test.custom_result_name"(%s, %q#0, %p) {names = ["u", "v"]} : (i32, i32, i32) -> (i32, i32) 65} 66