1 ; RUN: opt < %s -inline-threshold=0 -always-inline -S | FileCheck %s
3 ; Ensure the threshold has no impact on these decisions.
4 ; RUN: opt < %s -inline-threshold=20000000 -always-inline -S | FileCheck %s
5 ; RUN: opt < %s -inline-threshold=-20000000 -always-inline -S | FileCheck %s
7 define i32 @inner1() alwaysinline {
10 define i32 @outer1() {
15 %r = call i32 @inner1()
19 ; The always inliner can't DCE internal functions. PR2945
21 define internal i32 @pr2945() nounwind {
25 define internal void @inner2(i32 %N) alwaysinline {
26 %P = alloca i32, i32 %N
29 define void @outer2(i32 %N) {
30 ; The always inliner (unlike the normal one) should be willing to inline
31 ; a function with a dynamic alloca into one without a dynamic alloca.
35 ; CHECK-NOT: call void @inner2
36 ; CHECK alloca i32, i32 %N
37 ; CHECK-NOT: call void @inner2
40 call void @inner2( i32 %N )
44 declare i32 @a() returns_twice
45 declare i32 @b() returns_twice
47 define i32 @inner3() alwaysinline {
49 %call = call i32 @a() returns_twice
50 %add = add nsw i32 1, %call
53 define i32 @outer3() {
56 ; CHECK-NOT: call i32 @a
59 %call = call i32 @inner3()
60 %add = add nsw i32 1, %call
64 define i32 @inner4() alwaysinline returns_twice {
66 %call = call i32 @b() returns_twice
67 %add = add nsw i32 1, %call
71 define i32 @outer4() {
74 ; CHECK: call i32 @b()
77 %call = call i32 @inner4() returns_twice
78 %add = add nsw i32 1, %call
82 define i32 @inner5(i8* %addr) alwaysinline {
84 indirectbr i8* %addr, [ label %one, label %two ]
92 define i32 @outer5(i32 %x) {
94 ; CHECK: call i32 @inner5
97 %cmp = icmp slt i32 %x, 42
98 %addr = select i1 %cmp, i8* blockaddress(@inner5, %one), i8* blockaddress(@inner5, %two)
99 %call = call i32 @inner5(i8* %addr)
103 define void @inner6(i32 %x) alwaysinline {
105 %icmp = icmp slt i32 %x, 0
106 br i1 %icmp, label %return, label %bb
109 %sub = sub nsw i32 %x, 1
110 call void @inner6(i32 %sub)
116 define void @outer6() {
118 ; CHECK: call void @inner6(i32 42)
122 call void @inner6(i32 42)