48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
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// RUN: %clang_pgogen -mllvm -pgo-block-coverage %s -o %t.out
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// RUN: env LLVM_PROFILE_FILE=%t1.profraw %run %t.out 1
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// RUN: env LLVM_PROFILE_FILE=%t2.profraw %run %t.out 2
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// RUN: llvm-profdata merge -o %t.profdata %t1.profraw %t2.profraw
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// RUN: %clang_profuse=%t.profdata -mllvm -pgo-verify-bfi -o - -S -emit-llvm %s 2>%t.errs | FileCheck %s --implicit-check-not="!prof"
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// RUN: FileCheck %s < %t.errs --allow-empty --check-prefix=CHECK-ERROR
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#include <stdlib.h>
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// CHECK: @foo({{.*}})
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// CHECK-SAME: !prof ![[PROF0:[0-9]+]]
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void foo(int a) {
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// CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PROF1:[0-9]+]]
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if (a % 2 == 0) {
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//
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} else {
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//
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}
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// CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PROF1]]
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for (int i = 1; i < a; i++) {
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// CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PROF2:[0-9]+]]
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if (a % 3 == 0) {
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//
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} else {
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// CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PROF2]]
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if (a % 1001 == 0) {
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return;
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}
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}
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}
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return;
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}
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// CHECK: @main({{.*}})
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// CHECK-SAME: !prof ![[PROF0]]
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int main(int argc, char *argv[]) {
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foo(atoi(argv[1]));
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return 0;
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}
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// CHECK-DAG: ![[PROF0]] = !{!"function_entry_count", i64 10000}
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// CHECK-DAG: ![[PROF1]] = !{!"branch_weights", i32 1, i32 1}
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// CHECK-DAG: ![[PROF2]] = !{!"branch_weights", i32 0, i32 1}
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// CHECK-ERROR-NOT: warning: {{.*}}: Found inconsistent block coverage
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