File: attr-optnone.c

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (42 lines) | stat: -rw-r--r-- 1,564 bytes parent folder | download | duplicates (13)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
// RUN: %clang_cc1 -emit-llvm < %s > %t
// RUN: FileCheck %s --check-prefix=PRESENT < %t
// RUN: FileCheck %s --check-prefix=ABSENT  < %t
// RUN: %clang_cc1 -emit-llvm -Os < %s > %t
// RUN: FileCheck %s --check-prefix=PRESENT < %t
// RUN: FileCheck %s --check-prefix=OPTSIZE < %t
// RUN: %clang_cc1 -emit-llvm -Oz < %s > %t
// RUN: FileCheck %s --check-prefix=PRESENT < %t
// RUN: FileCheck %s --check-prefix=MINSIZE < %t

__attribute__((always_inline))
int test2(void) { return 0; }
// OPTSIZE: @test2{{.*}}[[ATTR2:#[0-9]+]]
// MINSIZE: @test2{{.*}}[[ATTR2:#[0-9]+]]

__attribute__((optnone))
int test3(void) { return 0; }
// PRESENT-DAG: @test3{{.*}}[[ATTR3:#[0-9]+]]

__attribute__((optnone)) __attribute__((cold))
int test4(void) { return test2(); }
// PRESENT-DAG: @test4{{.*}}[[ATTR4:#[0-9]+]]
// Also check that test2 is inlined into test4 (always_inline still works).
// PRESENT-NOT: call i32 @test2

// Check for both noinline and optnone on each optnone function.
// PRESENT-DAG: attributes [[ATTR3]] = { {{.*}}noinline{{.*}}optnone{{.*}} }
// PRESENT-DAG: attributes [[ATTR4]] = { {{.*}}noinline{{.*}}optnone{{.*}} }

// Check that no 'optsize' or 'minsize' attributes appear.
// ABSENT-NOT: optsize
// ABSENT-NOT: minsize

// With -Os, check that 'optsize' appears only on test2.
// OPTSIZE-NOT: optsize
// OPTSIZE: attributes [[ATTR2]] = { {{.*}}optsize{{.*}} }
// OPTSIZE-NOT: optsize

// With -Oz, check that 'minsize' appears only on test2.
// MINSIZE-NOT: minsize
// MINSIZE: attributes [[ATTR2]] = { {{.*}}minsize{{.*}} }
// MINSIZE-NOT: minsize