llvm-project/clang/test/PCH/pragma-optimize.c
Aaron Ballman 0dd49a5628 Use functions with prototypes when appropriate; NFC
A significant number of our tests in C accidentally use functions
without prototypes. This patch converts the function signatures to have
a prototype for the situations where the test is not specific to K&R C
declarations. e.g.,

  void func();

becomes

  void func(void);

This is the eighth batch of tests being updated (there are a
significant number of other tests left to be updated).
2022-02-12 07:25:06 -05:00

34 lines
847 B
C

// Test this without pch.
// RUN: %clang_cc1 %s -include %s -verify -fsyntax-only
// Test with pch.
// RUN: %clang_cc1 %s -emit-pch -o %t
// RUN: %clang_cc1 %s -emit-llvm -include-pch %t -o - | FileCheck %s
// The first run line creates a pch, and since at that point HEADER is not
// defined, the only thing contained in the pch is the pragma. The second line
// then includes that pch, so HEADER is defined and the actual code is compiled.
// The check then makes sure that the pragma is in effect in the file that
// includes the pch.
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
#pragma clang optimize off
#else
int a;
void f(void) {
a = 12345;
}
// Check that the function is decorated with optnone
// CHECK-DAG: @f() [[ATTRF:#[0-9]+]]
// CHECK-DAG: attributes [[ATTRF]] = { {{.*}}noinline{{.*}}optnone{{.*}} }
#endif