| ;; Test that we don't instrument loads to PGO counters or other |
| ;; compiler inserted variables. |
| ; |
| ; RUN: opt < %s -passes='function(memprof),module(memprof-module)' -S | FileCheck --check-prefixes=CHECK %s |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| $__profc__Z3foov = comdat nodeduplicate |
| @__profc__Z3foov = private global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", comdat, align 8 |
| @__llvm_gcov_ctr = internal global [1 x i64] zeroinitializer |
| |
| define void @_Z3foov(ptr %a) { |
| entry: |
| ;; Load that should get instrumentation. |
| %tmp1 = load i32, ptr %a, align 4 |
| ;; PGO counter update |
| %pgocount = load i64, ptr @__profc__Z3foov, align 8 |
| %0 = add i64 %pgocount, 1 |
| store i64 %0, ptr @__profc__Z3foov, align 8 |
| ;; Gcov counter update |
| %gcovcount = load i64, ptr @__llvm_gcov_ctr, align 8 |
| %1 = add i64 %gcovcount, 1 |
| store i64 %1, ptr @__llvm_gcov_ctr, align 8 |
| ret void |
| } |
| |
| ;; We should only add memory profile instrumentation for the first load. |
| ; CHECK: define void @_Z3foov |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: %0 = load i64, ptr @__memprof_shadow_memory_dynamic_address, align 8 |
| ; CHECK-NEXT: %1 = ptrtoint ptr %a to i64 |
| ; CHECK-NEXT: %2 = and i64 %1, -64 |
| ; CHECK-NEXT: %3 = lshr i64 %2, 3 |
| ; CHECK-NEXT: %4 = add i64 %3, %0 |
| ; CHECK-NEXT: %5 = inttoptr i64 %4 to ptr |
| ; CHECK-NEXT: %6 = load i64, ptr %5, align 8 |
| ; CHECK-NEXT: %7 = add i64 %6, 1 |
| ; CHECK-NEXT: store i64 %7, ptr %5, align 8 |
| ; CHECK-NEXT: %tmp1 = load i32, ptr %a, align 4 |
| ; CHECK-NEXT: %pgocount = load i64, ptr @__profc__Z3foov |
| ; CHECK-NEXT: %8 = add i64 %pgocount, 1 |
| ; CHECK-NEXT: store i64 %8, ptr @__profc__Z3foov |
| ; CHECK-NEXT: %gcovcount = load i64, ptr @__llvm_gcov_ctr |
| ; CHECK-NEXT: %9 = add i64 %gcovcount, 1 |
| ; CHECK-NEXT: store i64 %9, ptr @__llvm_gcov_ctr |
| ; CHECK-NEXT: ret void |