1 ; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck -check-prefix=CHECK-NO-FP %s 2 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -disable-fp-elim | FileCheck -check-prefix=CHECK-FP %s 3 ; RUN: llc < %s -mtriple=x86_64-linux-gnu | FileCheck -check-prefix=LINUX-NO-FP %s 4 ; RUN: llc < %s -mtriple=x86_64-linux-gnu -disable-fp-elim | FileCheck -check-prefix=LINUX-FP %s 5 6 define void @func() { 7 entry: 8 unreachable 9 } 10 11 ; MachO cannot handle an empty function. 12 ; CHECK-NO-FP: _func: 13 ; CHECK-NO-FP-NEXT: .cfi_startproc 14 ; CHECK-NO-FP: ud2 15 ; CHECK-NO-FP-NEXT: .cfi_endproc 16 17 ; CHECK-FP: _func: 18 ; CHECK-FP-NEXT: .cfi_startproc 19 ; CHECK-FP-NEXT: : 20 ; CHECK-FP-NEXT: pushq %rbp 21 ; CHECK-FP-NEXT: .cfi_def_cfa_offset 16 22 ; CHECK-FP-NEXT: .cfi_offset %rbp, -16 23 ; CHECK-FP-NEXT: movq %rsp, %rbp 24 ; CHECK-FP: ud2 25 ; CHECK-FP: .cfi_endproc 26 27 ; An empty function is perfectly fine on ELF. 28 ; LINUX-NO-FP: func: 29 ; LINUX-NO-FP-NEXT: .cfi_startproc 30 ; LINUX-NO-FP-NEXT: {{^}}# 31 ; LINUX-NO-FP-NEXT: {{^}}.L{{.*}}:{{$}} 32 ; LINUX-NO-FP-NEXT: .size func, .L{{.*}}-func 33 ; LINUX-NO-FP-NEXT: .cfi_endproc 34 35 ; A cfi directive cannot point to the end of a function. 36 ; LINUX-FP: func: 37 ; LINUX-FP-NEXT: .cfi_startproc 38 ; LINUX-FP-NEXT: {{^}}# 39 ; LINUX-FP-NEXT: pushq %rbp 40 ; LINUX-FP-NEXT: .cfi_def_cfa_offset 16 41 ; LINUX-FP-NEXT: .cfi_offset %rbp, -16 42 ; LINUX-FP-NEXT: movq %rsp, %rbp 43 ; LINUX-FP-NEXT:{{^}}.L{{.*}}:{{$}} 44 ; LINUX-FP-NEXT: .size func, .Lfunc_end0-func 45 ; LINUX-FP-NEXT: .cfi_endproc 46
