1 ; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s 2 3 declare x86_64_win64cc void @win64_callee(i32) 4 declare x86_64_win64cc void (i32)* @win64_indirect() 5 declare x86_64_win64cc void @win64_other(i32) 6 declare void @sysv_callee(i32) 7 declare void (i32)* @sysv_indirect() 8 declare void @sysv_other(i32) 9 10 define void @sysv_caller(i32 %p1) { 11 entry: 12 tail call x86_64_win64cc void @win64_callee(i32 %p1) 13 ret void 14 } 15 16 ; CHECK-LABEL: sysv_caller: 17 ; CHECK: subq $40, %rsp 18 ; CHECK: callq win64_callee 19 ; CHECK: addq $40, %rsp 20 ; CHECK: retq 21 22 define x86_64_win64cc void @win64_caller(i32 %p1) { 23 entry: 24 tail call void @sysv_callee(i32 %p1) 25 ret void 26 } 27 28 ; CHECK-LABEL: win64_caller: 29 ; CHECK: callq sysv_callee 30 ; CHECK: retq 31 32 define void @sysv_matched(i32 %p1) { 33 tail call void @sysv_callee(i32 %p1) 34 ret void 35 } 36 37 ; CHECK-LABEL: sysv_matched: 38 ; CHECK: jmp sysv_callee # TAILCALL 39 40 define x86_64_win64cc void @win64_matched(i32 %p1) { 41 tail call x86_64_win64cc void @win64_callee(i32 %p1) 42 ret void 43 } 44 45 ; CHECK-LABEL: win64_matched: 46 ; CHECK: jmp win64_callee # TAILCALL 47 48 define x86_64_win64cc void @win64_indirect_caller(i32 %p1) { 49 %1 = call x86_64_win64cc void (i32)* @win64_indirect() 50 call x86_64_win64cc void @win64_other(i32 0) 51 tail call x86_64_win64cc void %1(i32 %p1) 52 ret void 53 } 54 55 ; CHECK-LABEL: win64_indirect_caller: 56 ; CHECK: jmpq *%{{rax|rcx|rdx|r8|r9|r11}} # TAILCALL 57 58 define void @sysv_indirect_caller(i32 %p1) { 59 %1 = call void (i32)* @sysv_indirect() 60 call void @sysv_other(i32 0) 61 tail call void %1(i32 %p1) 62 ret void 63 } 64 65 ; CHECK-LABEL: sysv_indirect_caller: 66 ; CHECK: jmpq *%{{rax|rcx|rdx|rsi|rdi|r8|r9|r11}} # TAILCALL 67
