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