derek.holloway
7502bf64a4
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55 lines
1.9 KiB
LLVM
55 lines
1.9 KiB
LLVM
; RUN: opt < %s -passes=pseudo-probe,sample-profile -sample-profile-file=%S/Inputs/pseudo-probe-profile-metadata.prof -sample-profile-use-profi=0 -S | FileCheck %s
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; The test verifies the presence of prof metadata for BranchInst, SwitchInst,
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; and IndirectBrInst
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@yydebug = dso_local global i32 0, align 4
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define dso_local i32 @foo() #0 {
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entry:
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1)
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%0 = load i32, ptr @yydebug, align 4
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%cmp = icmp ne i32 %0, 0
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br i1 %cmp, label %b1, label %exit
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; CHECK: br i1 %cmp, label %b1, label %exit, !prof ![[ENTRY_PROF:[0-9]+]]
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b1:
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 2, i32 0, i64 -1)
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%1 = load i32, ptr @yydebug, align 4
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switch i32 %1, label %b3 [
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i32 124, label %indirectgoto
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i32 92, label %b2
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]
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; CHECK: ], !prof ![[SWITCH_PROF:[0-9]+]]
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b2:
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 3, i32 0, i64 -1)
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br label %indirectgoto
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b3:
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 4, i32 0, i64 -1)
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%2 = load i32, ptr @yydebug, align 4
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ret i32 %2
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indirectgoto:
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%indirect.goto.dest = alloca i8, align 4
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 5, i32 0, i64 -1)
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indirectbr ptr %indirect.goto.dest, [label %b1, label %b3, label %b2]
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; CHECK: indirectbr ptr %indirect.goto.dest, [label %b1, label %b3, label %b2], !prof ![[GOTO_PROF:[0-9]+]]
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exit:
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 6, i32 0, i64 -1)
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%3 = load i32, ptr @yydebug, align 4
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ret i32 %3
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}
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attributes #0 = {"use-sample-profile"}
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declare void @llvm.pseudoprobe(i64, i64, i32, i64) #1
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!llvm.pseudo_probe_desc = !{!4496}
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!4496 = !{i64 6699318081062747564, i64 158517001042, !"foo", null}
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; CHECK: ![[ENTRY_PROF]] = !{!"branch_weights", i32 10, i32 6}
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; CHECK: ![[SWITCH_PROF]] = !{!"branch_weights", i32 1, i32 9536, i32 1}
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; CHECK: ![[GOTO_PROF]] = !{!"branch_weights", i32 17739, i32 1, i32 1}
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