llvm/test/CodeGen/X86/basic-block-address-map-func-guid.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
;; Check that -basic-block-address-map-emit-func-guid emits the function GUID in
;; the SHT_LLVM_BB_ADDR_MAP section, only for functions with local linkage.
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-address-map -basic-block-address-map-emit-func-guid | FileCheck %s

;; Check that the GUIDs are correctly decoded from the object file.
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-address-map -basic-block-address-map-emit-func-guid -filetype=obj -o %t.o
; RUN: llvm-readobj --bb-addr-map %t.o | FileCheck %s --check-prefix=READOBJ

source_filename = "a.c"

;; No GUID is emitted for functions with non-local linkage, even if one is
;; assigned, since they can be identified by their symbol names.
define void @foo() !guid !0 {
; CHECK-LABEL: foo:
; CHECK:       # %bb.0:
; CHECK-NEXT:    retq
; CHECK-NEXT:  .LBB_END0_0:
  ret void
}
; CHECK:       .section .llvm_bb_addr_map,"o",@llvm_bb_addr_map,.text.foo{{$}}
; CHECK-NEXT:  .byte 6 # version
; CHECK-NEXT:  .short 0 # feature
; CHECK-NEXT:  .quad .Lfunc_begin0 # function address

;; For functions with local linkage, the assigned GUID is emitted.
define internal void @bar() !guid !1 {
; CHECK-LABEL: bar:
; CHECK:       # %bb.0:
; CHECK-NEXT:    retq
; CHECK-NEXT:  .LBB_END1_0:
  ret void
}
; CHECK:       .section .llvm_bb_addr_map,"o",@llvm_bb_addr_map,.text.bar{{$}}
; CHECK-NEXT:  .byte 6 # version
; CHECK-NEXT:  .short 256 # feature
; CHECK-NEXT:  .quad 1311768467463790320 # function GUID
; CHECK-NEXT:  .quad .Lfunc_begin1 # function address

;; If no GUID is assigned, it is computed from the module's source file name and
;; the function's name, i.e., MD5("a.c;baz").
define internal void @baz() {
; CHECK-LABEL: baz:
; CHECK:       # %bb.0:
; CHECK-NEXT:    retq
; CHECK-NEXT:  .LBB_END2_0:
  ret void
}
; CHECK:       .section .llvm_bb_addr_map,"o",@llvm_bb_addr_map,.text.baz{{$}}
; CHECK-NEXT:  .byte 6 # version
; CHECK-NEXT:  .short 256 # feature
; CHECK-NEXT:  .quad 8706860123593626477 # function GUID
; CHECK-NEXT:  .quad .Lfunc_begin2 # function address

!0 = !{i64 1111}
!1 = !{i64 1311768467463790320}

; READOBJ:      Name: foo
; READOBJ-NEXT: BB Ranges [
; READOBJ:      Name: bar
; READOBJ-NEXT: GUID: 0x123456789ABCDEF0
; READOBJ-NEXT: BB Ranges [
; READOBJ:      Name: baz
; READOBJ-NEXT: GUID: 0x78D4FB26C7CFD36D
; READOBJ-NEXT: BB Ranges [