forked from OSchip/llvm-project
27 lines
663 B
C
27 lines
663 B
C
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// Test that misexpect emits no warning when prediction is correct
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// RUN: llvm-profdata merge %S/Inputs/misexpect-branch.proftext -o %t.profdata
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// RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect
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// expected-no-diagnostics
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#define likely(x) __builtin_expect(!!(x), 1)
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#define unlikely(x) __builtin_expect(!!(x), 0)
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int foo(int);
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int baz(int);
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int buzz();
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const int inner_loop = 100;
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const int outer_loop = 2000;
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int bar() {
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int rando = buzz();
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int x = 0;
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if (unlikely(rando % (outer_loop * inner_loop) == 0)) {
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x = baz(rando);
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} else {
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x = foo(50);
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}
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return x;
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}
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