51 lines
1.6 KiB
LLVM
51 lines
1.6 KiB
LLVM
; RUN: opt < %s -passes='require<profile-summary>,cgscc(inline)' -S | FileCheck %s
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; This tests that the function count of two callees get correctly updated after
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; they have been inlined into two back-to-back callsites in a single basic block
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; in the caller. The callees have the alwaysinline attribute and so they get
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; inlined both with the regular inliner pass and the always inline pass. In
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; both cases, the new count of each callee is the original count minus callsite
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; count which is 200 (since the caller's entry count is 400 and the block
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; containing the calls have a relative block frequency of 0.5).
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; CHECK: @callee1(i32 %n) #0 !prof [[COUNT1:![0-9]+]]
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define i32 @callee1(i32 %n) #0 !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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%r1 = add i32 %n, 1
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ret i32 %r1
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cond_false:
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%r2 = add i32 %n, 2
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ret i32 %r2
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}
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; CHECK: @callee2(i32 %n) #0 !prof [[COUNT2:![0-9]+]]
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define i32 @callee2(i32 %n) #0 !prof !2 {
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%r1 = add i32 %n, 1
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ret i32 %r1
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}
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define i32 @caller(i32 %n) !prof !3 {
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%cond = icmp sle i32 %n, 100
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br i1 %cond, label %cond_true, label %cond_false
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cond_true:
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%i = call i32 @callee1(i32 %n)
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%j = call i32 @callee2(i32 %i)
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ret i32 %j
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cond_false:
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ret i32 0
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}
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!llvm.module.flags = !{!0}
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; CHECK: [[COUNT1]] = !{!"function_entry_count", i64 800}
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; CHECK: [[COUNT2]] = !{!"function_entry_count", i64 1800}
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!0 = !{i32 1, !"MaxFunctionCount", i32 1000}
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!1 = !{!"function_entry_count", i64 1000}
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!2 = !{!"function_entry_count", i64 2000}
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!3 = !{!"function_entry_count", i64 400}
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attributes #0 = { alwaysinline }
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