34 lines
1.4 KiB
LLVM
34 lines
1.4 KiB
LLVM
; RUN: opt < %s -passes=instrprof -runtime-counter-relocation -do-counter-promotion=true -S | FileCheck %s
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target triple = "x86_64-unknown-linux-gnu"
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@__profn_foo = private constant [3 x i8] c"foo"
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define void @foo(i1 %c) {
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entry:
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; CHECK: %[[BIAS:[0-9]+]] = load i64, ptr @__llvm_profile_counter_bias
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br label %while.cond
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while.cond: ; preds = %land.rhs, %while.cond.preheader
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; CHECK: %[[COUNT:[a-z0-9.]+]] = phi i64 [ %[[LAND_COUNT:[0-9]+]], %land.rhs ], [ 0, %entry ]
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br i1 %c, label %while.cond.cleanup_crit_edge, label %land.rhs
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while.cond.cleanup_crit_edge: ; preds = %while.cond
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; CHECK: %[[COUNTER_PTR:[0-9]+]] = add i64 ptrtoint (ptr @__profc_foo to i64), %[[BIAS]]
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; CHECK: %[[COUNTER_ADDR:[0-9]+]] = inttoptr i64 %[[COUNTER_PTR]] to ptr
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; CHECK: %[[COUNTER_PROMO:[a-z0-9.]+]] = load i64, ptr %[[COUNTER_ADDR]]
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; CHECK: %[[VALUE:[0-9]+]] = add i64 %[[COUNTER_PROMO]], %[[COUNT]]
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; CHECK: store i64 %[[VALUE]], ptr %[[COUNTER_ADDR]]
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br label %cleanup
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land.rhs: ; preds = %while.cond
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call void @llvm.instrprof.increment(ptr @__profn_foo, i64 0, i32 1, i32 0)
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; CHECK: %[[LAND_COUNT]] = add i64 %[[COUNT]], 1
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br label %while.cond
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cleanup: ; preds = %while.cond.cleanup_crit_edge
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ret void
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}
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declare void @llvm.instrprof.increment(ptr, i64, i32, i32)
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