forked from OSchip/llvm-project
40 lines
1.2 KiB
LLVM
40 lines
1.2 KiB
LLVM
; RUN: opt < %s -inline -S | FileCheck %s
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; Checks if inliner updates branch_weights annotation for call instructions.
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declare void @ext();
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declare void @ext1();
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; CHECK: define void @callee(i32 %n) !prof ![[ENTRY_COUNT:[0-9]*]]
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define void @callee(i32 %n) !prof !1 {
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%cond = icmp sle i32 %n, 10
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br i1 %cond, label %cond_true, label %cond_false
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cond_true:
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; ext1 is optimized away, thus not updated.
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; CHECK: call void @ext1(), !prof ![[COUNT_CALLEE1:[0-9]*]]
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call void @ext1(), !prof !2
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ret void
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cond_false:
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; ext is cloned and updated.
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; CHECK: call void @ext(), !prof ![[COUNT_CALLEE:[0-9]*]]
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call void @ext(), !prof !2
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ret void
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}
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; CHECK: define void @caller()
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define void @caller() {
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; CHECK: call void @ext(), !prof ![[COUNT_CALLER:[0-9]*]]
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call void @callee(i32 15), !prof !3
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ret void
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}
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!llvm.module.flags = !{!0}
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!0 = !{i32 1, !"MaxFunctionCount", i32 2000}
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!1 = !{!"function_entry_count", i64 1000}
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!2 = !{!"branch_weights", i64 2000}
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!3 = !{!"branch_weights", i64 400}
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attributes #0 = { alwaysinline }
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; CHECK: ![[ENTRY_COUNT]] = !{!"function_entry_count", i64 600}
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; CHECK: ![[COUNT_CALLEE1]] = !{!"branch_weights", i64 2000}
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; CHECK: ![[COUNT_CALLEE]] = !{!"branch_weights", i32 1200}
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; CHECK: ![[COUNT_CALLER]] = !{!"branch_weights", i32 800}
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