File: c-unreachable-after-switch.c

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (15 lines) | stat: -rw-r--r-- 540 bytes parent folder | download | duplicates (12) 
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]], 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}
}