File: c-unreachable-after-switch.c

package info (click to toggle)
llvm-toolchain-3.9 1%3A3.9.1-8
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 441,060 kB
  • ctags: 428,777
  • sloc: cpp: 2,546,577; ansic: 538,318; asm: 119,677; objc: 103,316; python: 102,148; sh: 27,847; pascal: 5,626; ml: 5,510; perl: 5,293; lisp: 4,801; makefile: 2,177; xml: 686; cs: 362; php: 212; csh: 117
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}
}