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20 lines
558 B
20 lines
558 B
// RUN: %clang_profgen -o %t -O3 %s
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-profdata merge -o %t.profdata %t.profraw
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// RUN: %clang_profuse=%t.profdata -o - -S -emit-llvm %s | FileCheck %s
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void __llvm_profile_reset_counters(void);
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void foo(int);
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int main(void) {
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foo(0);
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__llvm_profile_reset_counters();
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foo(1);
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return 0;
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}
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void foo(int N) {
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// CHECK-LABEL: define void @foo(
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// CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[FOO:[0-9]+]]
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if (N) {}
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}
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// CHECK: ![[FOO]] = !{!"branch_weights", i32 2, i32 1}
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