374d5da214
This commit removes the verifier that checked if branch weights are negative. This check was too strict because weights are interpreted as unsigned integers. This showed up when running the verifier on LLVM dialect modules that were imported from LLVM IR.
94 lines
1.9 KiB
MLIR
94 lines
1.9 KiB
MLIR
// RUN: mlir-opt -verify-diagnostics -split-input-file %s
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func.func @switch_missing_case_value(%flag : i32, %caseOperand : i32) {
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cf.switch %flag : i32, [
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default: ^bb1(%caseOperand : i32),
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45: ^bb2(%caseOperand : i32),
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// expected-error@+1 {{expected integer value}}
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: ^bb3(%caseOperand : i32)
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]
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^bb1(%bb1arg : i32):
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return
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^bb2(%bb2arg : i32):
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return
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^bb3(%bb3arg : i32):
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return
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}
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// -----
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func.func @switch_wrong_type_case_value(%flag : i32, %caseOperand : i32) {
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cf.switch %flag : i32, [
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default: ^bb1(%caseOperand : i32),
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// expected-error@+1 {{expected integer value}}
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"hello": ^bb2(%caseOperand : i32)
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]
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^bb1(%bb1arg : i32):
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return
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^bb2(%bb2arg : i32):
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return
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^bb3(%bb3arg : i32):
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return
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}
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// -----
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func.func @switch_missing_comma(%flag : i32, %caseOperand : i32) {
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cf.switch %flag : i32, [
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default: ^bb1(%caseOperand : i32),
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// expected-error@+1 {{expected ']'}}
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45: ^bb2(%caseOperand : i32)
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43: ^bb3(%caseOperand : i32)
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]
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^bb1(%bb1arg : i32):
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return
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^bb2(%bb2arg : i32):
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return
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^bb3(%bb3arg : i32):
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return
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}
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// -----
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func.func @switch_missing_default(%flag : i32, %caseOperand : i32) {
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cf.switch %flag : i32, [
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// expected-error@+1 {{expected 'default'}}
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45: ^bb2(%caseOperand : i32)
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43: ^bb3(%caseOperand : i32)
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]
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^bb1(%bb1arg : i32):
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return
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^bb2(%bb2arg : i32):
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return
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^bb3(%bb3arg : i32):
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return
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}
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// -----
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// CHECK-LABEL: func @wrong_weights_number
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func.func @wrong_weights_number(%cond: i1) {
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// expected-error@+1 {{expects number of branch weights to match number of successors: 1 vs 2}}
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cf.cond_br %cond weights([100]), ^bb1, ^bb2
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^bb1:
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return
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^bb2:
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return
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}
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// -----
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// CHECK-LABEL: func @zero_weights
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func.func @wrong_total_weight(%cond: i1) {
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// expected-error@+1 {{branch weights cannot all be zero}}
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cf.cond_br %cond weights([0, 0]), ^bb1, ^bb2
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^bb1:
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return
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^bb2:
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return
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}
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