1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=powerpc-apple-darwin | FileCheck -check-prefix=CHECK-MACHO %s 2*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=powerpc-apple-darwin -disable-fp-elim | FileCheck -check-prefix=CHECK-MACHO %s 3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=powerpc-linux-gnu | FileCheck -check-prefix=LINUX-NO-FP %s 4*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=powerpc-linux-gnu -disable-fp-elim | FileCheck -check-prefix=LINUX-FP %s 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Workerdefine void @func() { 7*9880d681SAndroid Build Coastguard Workerentry: 8*9880d681SAndroid Build Coastguard Worker unreachable 9*9880d681SAndroid Build Coastguard Worker} 10*9880d681SAndroid Build Coastguard Worker 11*9880d681SAndroid Build Coastguard Worker; MachO cannot handle an empty function. 12*9880d681SAndroid Build Coastguard Worker; CHECK-MACHO: _func: 13*9880d681SAndroid Build Coastguard Worker; CHECK-MACHO-NEXT: .cfi_startproc 14*9880d681SAndroid Build Coastguard Worker; CHECK-MACHO-NEXT: {{^}}; 15*9880d681SAndroid Build Coastguard Worker; CHECK-MACHO-NEXT: nop 16*9880d681SAndroid Build Coastguard Worker; CHECK-MACHO-NEXT: .cfi_endproc 17*9880d681SAndroid Build Coastguard Worker 18*9880d681SAndroid Build Coastguard Worker; An empty function is perfectly fine on ELF. 19*9880d681SAndroid Build Coastguard Worker; LINUX-NO-FP: func: 20*9880d681SAndroid Build Coastguard Worker; LINUX-NO-FP-NEXT: {{^}}.L[[BEGIN:.*]]:{{$}} 21*9880d681SAndroid Build Coastguard Worker; LINUX-NO-FP-NEXT: .cfi_startproc 22*9880d681SAndroid Build Coastguard Worker; LINUX-NO-FP-NEXT: {{^}}# 23*9880d681SAndroid Build Coastguard Worker; LINUX-NO-FP-NEXT: {{^}}.L[[END:.*]]:{{$}} 24*9880d681SAndroid Build Coastguard Worker; LINUX-NO-FP-NEXT: .size func, .L[[END]]-.L[[BEGIN]] 25*9880d681SAndroid Build Coastguard Worker; LINUX-NO-FP-NEXT: .cfi_endproc 26*9880d681SAndroid Build Coastguard Worker 27*9880d681SAndroid Build Coastguard Worker; A cfi directive can point to the end of a function. It (and in fact the 28*9880d681SAndroid Build Coastguard Worker; entire body) could be optimized out because of the unreachable, but we 29*9880d681SAndroid Build Coastguard Worker; don't do it right now. 30*9880d681SAndroid Build Coastguard Worker; LINUX-FP: func: 31*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: {{^}}.L[[BEGIN:.*]]:{{$}} 32*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: .cfi_startproc 33*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: {{^}}# 34*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: stw 31, -4(1) 35*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: stwu 1, -16(1) 36*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: {{^}}.L{{.*}}:{{$}} 37*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: .cfi_def_cfa_offset 16 38*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: {{^}}.L{{.*}}:{{$}} 39*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: .cfi_offset r31, -4 40*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: mr 31, 1 41*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT:{{^}}.L{{.*}}:{{$}} 42*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: .cfi_def_cfa_register r31 43*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: {{^}}.L[[END:.*]]:{{$}} 44*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: .size func, .L[[END]]-.L[[BEGIN]] 45*9880d681SAndroid Build Coastguard Worker; LINUX-FP-NEXT: .cfi_endproc 46