29 lines
769 B
LLVM
29 lines
769 B
LLVM
; RUN: opt < %s -analyze -block-freq | FileCheck %s
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; RUN: opt < %s -passes='print<block-freq>' -disable-output 2>&1 | FileCheck %s
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define void @double_backedge(i1 %x) {
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; CHECK-LABEL: Printing analysis {{.*}} for function 'double_backedge':
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; CHECK-NEXT: block-frequency-info: double_backedge
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entry:
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; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
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br label %loop
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loop:
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; CHECK-NEXT: loop: float = 10.0,
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br i1 %x, label %exit, label %loop.1, !prof !0
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loop.1:
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; CHECK-NEXT: loop.1: float = 9.0,
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br i1 %x, label %loop, label %loop.2, !prof !1
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loop.2:
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; CHECK-NEXT: loop.2: float = 5.0,
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br label %loop
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exit:
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; CHECK-NEXT: exit: float = 1.0, int = [[ENTRY]]
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ret void
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}
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!0 = !{!"branch_weights", i32 1, i32 9}
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!1 = !{!"branch_weights", i32 4, i32 5}
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