teak-llvm/clang/test/CodeGen/code-coverage.c
Bill Wendling 9a12912c9a Specify if `-mno-red-zone' was used when creating the GCOV instrucmentation pass.
This prevents the functions generated by that pass from using the red zone.
<rdar://problem/12843084>

llvm-svn: 169755
2012-12-10 19:47:53 +00:00

20 lines
627 B
C

// RUN: %clang_cc1 -O0 -mno-red-zone -fprofile-arcs -ftest-coverage -emit-llvm %s -o - | FileCheck %s
// <rdar://problem/12843084>
int test1(int a) {
switch (a % 2) {
case 0:
++a;
case 1:
a /= 2;
}
return a;
}
// Check tha the `-mno-red-zone' flag is set here on the generated functions.
// CHECK: void @__llvm_gcov_indirect_counter_increment(i32* %{{.*}}, i64** %{{.*}}) unnamed_addr noinline noredzone
// CHECK: void @__llvm_gcov_writeout() unnamed_addr noinline noredzone
// CHECK: void @__llvm_gcov_init() unnamed_addr noinline noredzone
// CHECK: void @__gcov_flush() unnamed_addr noinline noredzone