derek.holloway
7502bf64a4
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116 lines
2.4 KiB
MLIR
116 lines
2.4 KiB
MLIR
// RUN: mlir-opt -pass-pipeline="builtin.module(any(test-cfg-loop-info))" --split-input-file %s 2>&1 | FileCheck %s
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// CHECK-LABEL: Testing : "no_loop_single_block"
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// CHECK: no loops
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func.func @no_loop_single_block() {
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return
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}
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// -----
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// CHECK-LABEL: Testing : "no_loop"
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// CHECK: no loops
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func.func @no_loop() {
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cf.br ^bb1
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^bb1:
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return
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}
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// -----
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// CHECK-LABEL: Testing : "simple_loop"
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// CHECK-NEXT: Blocks : ^[[BB0:.*]], ^[[BB1:.*]], ^[[BB2:.*]], ^[[BB3:.*]]
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// CHECK: Loop at depth 1 containing:
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// CHECK-SAME: ^[[BB1]]<header><exiting>
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// CHECK-SAME: ^[[BB2]]<latch>
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func.func @simple_loop(%c: i1) {
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cf.br ^bb1
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^bb1:
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cf.cond_br %c, ^bb2, ^bb3
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^bb2:
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cf.br ^bb1
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^bb3:
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return
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}
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// -----
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// CHECK-LABEL: Testing : "single_block_loop"
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// CHECK-NEXT: Blocks : ^[[BB0:.*]], ^[[BB1:.*]], ^[[BB2:.*]]
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// CHECK: Loop at depth 1 containing:
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// CHECK-SAME: ^[[BB1]]<header><latch><exiting>
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func.func @single_block_loop(%c: i1) {
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cf.br ^bb1
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^bb1:
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cf.cond_br %c, ^bb1, ^bb2
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^bb2:
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return
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}
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// -----
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// CHECK-LABEL: Testing : "nested_loop"
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// CHECK-NEXT: Blocks : ^[[BB0:.*]], ^[[BB1:.*]], ^[[BB2:.*]], ^[[BB3:.*]], ^[[BB4:.*]]
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// CHECK: Loop at depth 1
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// CHECK-SAME: ^[[BB1]]<header><exiting>
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// CHECK-SAME: ^[[BB2]]<latch>
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// CHECK-SAME: ^[[BB3]]
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// CHECK: Loop at depth 2
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// CHECK-SAME: ^[[BB2]]<header><exiting>
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// CHECK-SAME: ^[[BB3]]<latch>
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func.func @nested_loop(%c: i1) {
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cf.br ^bb1
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^bb1:
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cf.cond_br %c, ^bb2, ^bb4
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^bb2:
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cf.cond_br %c, ^bb1, ^bb3
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^bb3:
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cf.br ^bb2
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^bb4:
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return
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}
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// -----
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// CHECK-LABEL: Testing : "multi_latch"
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// CHECK-NEXT: Blocks : ^[[BB0:.*]], ^[[BB1:.*]], ^[[BB2:.*]], ^[[BB3:.*]], ^[[BB4:.*]]
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// CHECK: Loop at depth 1
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// CHECK-SAME: ^[[BB1]]<header><exiting>
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// CHECK-SAME: ^[[BB2]]<latch>
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// CHECK-SAME: ^[[BB3]]<latch>
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func.func @multi_latch(%c: i1) {
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cf.br ^bb1
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^bb1:
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cf.cond_br %c, ^bb4, ^bb2
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^bb2:
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cf.cond_br %c, ^bb1, ^bb3
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^bb3:
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cf.br ^bb1
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^bb4:
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return
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}
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// -----
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// CHECK-LABEL: Testing : "multiple_loops"
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// CHECK-NEXT: Blocks : ^[[BB0:.*]], ^[[BB1:.*]], ^[[BB2:.*]], ^[[BB3:.*]], ^[[BB4:.*]], ^[[BB5:.*]]
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// CHECK: Loop at depth 1
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// CHECK-SAME: ^[[BB3]]<header><exiting>
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// CHECK-SAME: ^[[BB4]]<latch>
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// CHECK: Loop at depth 1
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// CHECK-SAME: ^[[BB1]]<header>
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// CHECK-SAME: ^[[BB2]]<latch><exiting>
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func.func @multiple_loops(%c: i1) {
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cf.br ^bb1
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^bb1:
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cf.br ^bb2
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^bb2:
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cf.cond_br %c, ^bb3, ^bb1
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^bb3:
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cf.cond_br %c, ^bb5, ^bb4
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^bb4:
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cf.br ^bb3
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^bb5:
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return
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}
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