File: c-unreachable-after-switch.c

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,388 kB
  • sloc: cpp: 7,438,767; ansic: 1,393,871; asm: 1,012,926; python: 241,728; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (15 lines) | stat: -rw-r--r-- 516 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 
// 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]]
void foo(void) {
  // CHECK: store {{.*}} @[[C]], i64 16)
  switch (0) {
  default:
    return;
  }
  // We shouldn't emit the unreachable counter. This used to crash in GlobalDCE.
  // CHECK-NOT: store {{.*}} @[[C]], i64 8)
}