| ;; Test if a potential indirect call target function which has internal linkage and |
| ;; address taken has its type ID emitted to callgraph section. |
| ;; This test also makes sure that callback functions which meet the above constraint |
| ;; are handled correctly. |
| |
| ; RUN: llc -mtriple=arm-unknown-linux --call-graph-section -o - < %s | FileCheck %s |
| |
| declare !type !0 void @_Z6doWorkPFviE(ptr) |
| |
| define i32 @_Z4testv() !type !1 { |
| entry: |
| call void @_Z6doWorkPFviE(ptr nonnull @_ZL10myCallbacki) |
| ret i32 0 |
| } |
| |
| ; CHECK: _ZL10myCallbacki: |
| define internal void @_ZL10myCallbacki(i32 %value) !type !2 { |
| entry: |
| %sink = alloca i32, align 4 |
| store volatile i32 %value, ptr %sink, align 4 |
| %i1 = load volatile i32, ptr %sink, align 4 |
| ret void |
| } |
| |
| !0 = !{i64 0, !"_ZTSFvPFviEE.generalized"} |
| !1 = !{i64 0, !"_ZTSFivE.generalized"} |
| !2 = !{i64 0, !"_ZTSFviE.generalized"} |
| |
| ; CHECK: .section .llvm.callgraph,"o",%llvm_call_graph,.text |
| ;; Version |
| ; CHECK-NEXT: .byte 0 |
| ;; Flags -- Potential indirect target so LSB is set to 1. Other bits are 0. |
| ; CHECK-NEXT: .byte 1 |
| ;; Function Entry PC |
| ; CHECK-NEXT: .long _ZL10myCallbacki |
| ;; Function type ID -5212364466660467813 |
| ; CHECK-NEXT: .long 1154849691 |
| ; CHECK-NEXT: .long 3081369122 |
