1 // Test that misexpect emits no warning when prediction is correct 2 3 // RUN: llvm-profdata merge %S/Inputs/misexpect-branch.proftext -o %t.profdata 4 // RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect 5 6 // expected-no-diagnostics 7 #define unpredictable(x) __builtin_unpredictable(!!(x)) 8 9 int foo(int); 10 int baz(int); 11 int buzz(); 12 13 const int inner_loop = 100; 14 const int outer_loop = 2000; 15 bar()16int bar() { 17 int rando = buzz(); 18 int x = 0; 19 if (unpredictable(rando % (outer_loop * inner_loop) == 0)) { 20 x = baz(rando); 21 } else { 22 x = foo(50); 23 } 24 return x; 25 } 26