1;; Test that we don't instrument loads to PGO counters or other 2;; compiler inserted variables. 3; 4; RUN: opt < %s -passes='function(memprof),module(memprof-module)' -S | FileCheck --check-prefixes=CHECK %s 5 6target 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" 7target triple = "x86_64-unknown-linux-gnu" 8 9$__profc__Z3foov = comdat nodeduplicate 10@__profc__Z3foov = private global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", comdat, align 8 11@__llvm_gcov_ctr = internal global [1 x i64] zeroinitializer 12 13define void @_Z3foov(ptr %a) { 14entry: 15 ;; Load that should get instrumentation. 16 %tmp1 = load i32, ptr %a, align 4 17 ;; PGO counter update 18 %pgocount = load i64, ptr @__profc__Z3foov, align 8 19 %0 = add i64 %pgocount, 1 20 store i64 %0, ptr @__profc__Z3foov, align 8 21 ;; Gcov counter update 22 %gcovcount = load i64, ptr @__llvm_gcov_ctr, align 8 23 %1 = add i64 %gcovcount, 1 24 store i64 %1, ptr @__llvm_gcov_ctr, align 8 25 ret void 26} 27 28;; We should only add memory profile instrumentation for the first load. 29; CHECK: define void @_Z3foov 30; CHECK-NEXT: entry: 31; CHECK-NEXT: %0 = load i64, ptr @__memprof_shadow_memory_dynamic_address, align 8 32; CHECK-NEXT: %1 = ptrtoint ptr %a to i64 33; CHECK-NEXT: %2 = and i64 %1, -64 34; CHECK-NEXT: %3 = lshr i64 %2, 3 35; CHECK-NEXT: %4 = add i64 %3, %0 36; CHECK-NEXT: %5 = inttoptr i64 %4 to ptr 37; CHECK-NEXT: %6 = load i64, ptr %5, align 8 38; CHECK-NEXT: %7 = add i64 %6, 1 39; CHECK-NEXT: store i64 %7, ptr %5, align 8 40; CHECK-NEXT: %tmp1 = load i32, ptr %a, align 4 41; CHECK-NEXT: %pgocount = load i64, ptr @__profc__Z3foov 42; CHECK-NEXT: %8 = add i64 %pgocount, 1 43; CHECK-NEXT: store i64 %8, ptr @__profc__Z3foov 44; CHECK-NEXT: %gcovcount = load i64, ptr @__llvm_gcov_ctr 45; CHECK-NEXT: %9 = add i64 %gcovcount, 1 46; CHECK-NEXT: store i64 %9, ptr @__llvm_gcov_ctr 47; CHECK-NEXT: ret void 48