; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -tailcallopt < %s -mtriple=x86_64-unknown-unknown | FileCheck %s -check-prefix=X64 ; RUN: llc -tailcallopt < %s -mtriple=x86_64-uefi | FileCheck %s -check-prefix=UEFI64 ; RUN: llc -tailcallopt < %s -mtriple=i686-unknown-unknown | FileCheck %s -check-prefix=X86 ; llc -tailcallopt should not enable tail calls from fastcc to tailcc or vice versa declare tailcc i32 @tailcallee1(i32 %a1, i32 %a2, i32 %a3, i32 %a4) define fastcc i32 @tailcaller1(i32 %in1, i32 %in2) nounwind { ; X64-LABEL: tailcaller1: ; X64: # %bb.0: # %entry ; X64-NEXT: pushq %rax ; X64-NEXT: movl %edi, %edx ; X64-NEXT: movl %esi, %ecx ; X64-NEXT: callq tailcallee1@PLT ; X64-NEXT: retq $8 ; ; UEFI64-LABEL: tailcaller1: ; UEFI64: # %bb.0: # %entry ; UEFI64-NEXT: subq $40, %rsp ; UEFI64-NEXT: movl %ecx, %r8d ; UEFI64-NEXT: movl %edx, %r9d ; UEFI64-NEXT: callq tailcallee1 ; UEFI64-NEXT: retq $40 ; ; X86-LABEL: tailcaller1: ; X86: # %bb.0: # %entry ; X86-NEXT: pushl %edx ; X86-NEXT: pushl %ecx ; X86-NEXT: calll tailcallee1@PLT ; X86-NEXT: retl entry: %tmp11 = tail call tailcc i32 @tailcallee1(i32 %in1, i32 %in2, i32 %in1, i32 %in2) ret i32 %tmp11 } declare fastcc i32 @tailcallee2(i32 %a1, i32 %a2, i32 %a3, i32 %a4) define tailcc i32 @tailcaller2(i32 %in1, i32 %in2) nounwind { ; X64-LABEL: tailcaller2: ; X64: # %bb.0: # %entry ; X64-NEXT: pushq %rax ; X64-NEXT: movl %edi, %edx ; X64-NEXT: movl %esi, %ecx ; X64-NEXT: callq tailcallee2@PLT ; X64-NEXT: retq $8 ; ; UEFI64-LABEL: tailcaller2: ; UEFI64: # %bb.0: # %entry ; UEFI64-NEXT: subq $40, %rsp ; UEFI64-NEXT: movl %ecx, %r8d ; UEFI64-NEXT: movl %edx, %r9d ; UEFI64-NEXT: callq tailcallee2 ; UEFI64-NEXT: retq $40 ; ; X86-LABEL: tailcaller2: ; X86: # %bb.0: # %entry ; X86-NEXT: pushl %edx ; X86-NEXT: pushl %ecx ; X86-NEXT: calll tailcallee2@PLT ; X86-NEXT: retl entry: %tmp11 = tail call fastcc i32 @tailcallee2(i32 %in1, i32 %in2, i32 %in1, i32 %in2) ret i32 %tmp11 }