xref: /aosp_15_r20/external/clang/test/CodeGen/attr-optnone.c (revision 67e74705e28f6214e480b399dd47ea732279e315) 
1*67e74705SXin Li // RUN: %clang_cc1 -emit-llvm < %s > %t
2*67e74705SXin Li // RUN: FileCheck %s --check-prefix=PRESENT < %t
3*67e74705SXin Li // RUN: FileCheck %s --check-prefix=ABSENT  < %t
4*67e74705SXin Li // RUN: %clang_cc1 -emit-llvm -Os < %s > %t
5*67e74705SXin Li // RUN: FileCheck %s --check-prefix=PRESENT < %t
6*67e74705SXin Li // RUN: FileCheck %s --check-prefix=OPTSIZE < %t
7*67e74705SXin Li // RUN: %clang_cc1 -emit-llvm -Oz < %s > %t
8*67e74705SXin Li // RUN: FileCheck %s --check-prefix=PRESENT < %t
9*67e74705SXin Li // RUN: FileCheck %s --check-prefix=MINSIZE < %t
10*67e74705SXin Li 
11*67e74705SXin Li __attribute__((always_inline))
test2()12*67e74705SXin Li int test2() { return 0; }
13*67e74705SXin Li // OPTSIZE: @test2{{.*}}[[ATTR2:#[0-9]+]]
14*67e74705SXin Li // MINSIZE: @test2{{.*}}[[ATTR2:#[0-9]+]]
15*67e74705SXin Li 
16*67e74705SXin Li __attribute__((optnone))
test3()17*67e74705SXin Li int test3() { return 0; }
18*67e74705SXin Li // PRESENT-DAG: @test3{{.*}}[[ATTR3:#[0-9]+]]
19*67e74705SXin Li 
20*67e74705SXin Li __attribute__((optnone)) __attribute__((cold))
test4()21*67e74705SXin Li int test4() { return test2(); }
22*67e74705SXin Li // PRESENT-DAG: @test4{{.*}}[[ATTR4:#[0-9]+]]
23*67e74705SXin Li // Also check that test2 is inlined into test4 (always_inline still works).
24*67e74705SXin Li // PRESENT-NOT: call i32 @test2
25*67e74705SXin Li 
26*67e74705SXin Li // Check for both noinline and optnone on each optnone function.
27*67e74705SXin Li // PRESENT-DAG: attributes [[ATTR3]] = { {{.*}}noinline{{.*}}optnone{{.*}} }
28*67e74705SXin Li // PRESENT-DAG: attributes [[ATTR4]] = { {{.*}}noinline{{.*}}optnone{{.*}} }
29*67e74705SXin Li 
30*67e74705SXin Li // Check that no 'optsize' or 'minsize' attributes appear.
31*67e74705SXin Li // ABSENT-NOT: optsize
32*67e74705SXin Li // ABSENT-NOT: minsize
33*67e74705SXin Li 
34*67e74705SXin Li // With -Os, check that 'optsize' appears only on test2.
35*67e74705SXin Li // OPTSIZE-NOT: optsize
36*67e74705SXin Li // OPTSIZE: attributes [[ATTR2]] = { {{.*}}optsize{{.*}} }
37*67e74705SXin Li // OPTSIZE-NOT: optsize
38*67e74705SXin Li 
39*67e74705SXin Li // With -Oz, check that 'minsize' appears only on test2.
40*67e74705SXin Li // MINSIZE-NOT: minsize
41*67e74705SXin Li // MINSIZE: attributes [[ATTR2]] = { {{.*}}minsize{{.*}} }
42*67e74705SXin Li // MINSIZE-NOT: minsize
43