xref: /llvm-project/llvm/test/ThinLTO/X86/ref-ifunc.ll (revision fa9b1be45088dce1e4b602d451f118128b94237b)
1*fa9b1be4SMingming Liu; RUN: opt -module-summary %s -o %t.bc
2*fa9b1be4SMingming Liu
3*fa9b1be4SMingming Liu; RUN: llvm-dis %t.bc -o - | FileCheck %s
4*fa9b1be4SMingming Liu
5*fa9b1be4SMingming Liu; Tests that var and caller are not eligible to import and they don't have refs to ifunc 'callee'
6*fa9b1be4SMingming Liu
7*fa9b1be4SMingming Liu; CHECK: gv: (name: "var", summaries: (variable: ({{.*}}, flags: ({{.*}}notEligibleToImport: 1
8*fa9b1be4SMingming Liu; CHECK-NOT: refs
9*fa9b1be4SMingming Liu; CHECK-SAME: guid = 7919382516565939378
10*fa9b1be4SMingming Liu
11*fa9b1be4SMingming Liu; CHECK: gv: (name: "caller", summaries: (function: ({{.*}}, flags: ({{.*}}notEligibleToImport: 1
12*fa9b1be4SMingming Liu; CHECK-NOT: refs
13*fa9b1be4SMingming Liu; CHECK-SAME: guid = 16677772384402303968
14*fa9b1be4SMingming Liu
15*fa9b1be4SMingming Liutarget datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
16*fa9b1be4SMingming Liutarget triple = "x86_64-unknown-linux-gnu"
17*fa9b1be4SMingming Liu
18*fa9b1be4SMingming Liu@__cpu_model = external global { i32, i32, i32, [1 x i32] }
19*fa9b1be4SMingming Liu
20*fa9b1be4SMingming Liu@callee = internal ifunc void(), ptr @callee.resolver
21*fa9b1be4SMingming Liu
22*fa9b1be4SMingming Liu@var = constant { [1 x ptr] } { [1 x ptr] [ptr @callee]}
23*fa9b1be4SMingming Liu
24*fa9b1be4SMingming Liudefine void @dispatch(ptr %func) {
25*fa9b1be4SMingming Liu    tail call void %func()
26*fa9b1be4SMingming Liu    ret void
27*fa9b1be4SMingming Liu}
28*fa9b1be4SMingming Liu
29*fa9b1be4SMingming Liudefine void @caller() {
30*fa9b1be4SMingming Liu  tail call void @dispatch(ptr @callee)
31*fa9b1be4SMingming Liu  ret void
32*fa9b1be4SMingming Liu}
33*fa9b1be4SMingming Liu
34*fa9b1be4SMingming Liudefine internal ptr @callee.resolver() {
35*fa9b1be4SMingming Liuresolver_entry:
36*fa9b1be4SMingming Liu  tail call void @__cpu_indicator_init()
37*fa9b1be4SMingming Liu  %0 = load i32, ptr getelementptr inbounds ({ i32, i32, i32, [1 x i32] }, ptr @__cpu_model, i64 0, i32 3, i64 0)
38*fa9b1be4SMingming Liu  %1 = and i32 %0, 1024
39*fa9b1be4SMingming Liu  %.not = icmp eq i32 %1, 0
40*fa9b1be4SMingming Liu  %func_sel = select i1 %.not, ptr @callee.default.1, ptr @callee.avx2.0
41*fa9b1be4SMingming Liu  ret ptr %func_sel
42*fa9b1be4SMingming Liu}
43*fa9b1be4SMingming Liu
44*fa9b1be4SMingming Liudefine internal void @callee.default.1(i32 %a) {
45*fa9b1be4SMingming Liu  ret void
46*fa9b1be4SMingming Liu}
47*fa9b1be4SMingming Liu
48*fa9b1be4SMingming Liudefine internal void @callee.avx2.0(i32 %a) {
49*fa9b1be4SMingming Liu  ret void
50*fa9b1be4SMingming Liu}
51*fa9b1be4SMingming Liu
52*fa9b1be4SMingming Liudeclare void @__cpu_indicator_init()
53