llvm-for-llvmta/tools/clang/test/Profile/c-unreachable-after-switch.c

16 lines
540 B
C

// RUN: %clang_cc1 -O3 -triple x86_64-apple-macosx10.10 -main-file-name c-unreachable-after-switch.c %s -o - -emit-llvm -fprofile-instrument=clang | FileCheck %s
// CHECK: @[[C:__profc_foo]] = private global [3 x i64] zeroinitializer
// CHECK-LABEL: @foo()
// CHECK: store {{.*}} @[[C]], i64 0, i64 0
void foo() {
// CHECK: store {{.*}} @[[C]], i64 0, i64 2
switch (0) {
default:
return;
}
// We shouldn't emit the unreachable counter. This used to crash in GlobalDCE.
// CHECK-NOT: store {{.*}} @[[SWC]], i64 0, i64 1}
}