| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s |
| |
| declare dso_local swifttailcc i32 @tailcallee(i32 %a1, i32 %a2, i32 %a3, i32 %a4) |
| |
| define dso_local swifttailcc i32 @tailcaller(i32 %in1, i32 %in2) nounwind { |
| ; CHECK-LABEL: tailcaller: |
| ; CHECK-NOT: subq |
| ; CHECK-NOT: addq |
| ; CHECK: jmp tailcallee |
| entry: |
| %tmp11 = musttail call swifttailcc i32 @tailcallee(i32 %in1, i32 %in2, i32 %in1, i32 %in2) |
| ret i32 %tmp11 |
| } |
| |
| declare dso_local swifttailcc i8* @alias_callee() |
| |
| define swifttailcc noalias i8* @noalias_caller() nounwind { |
| ; CHECK-LABEL: noalias_caller: |
| ; CHECK: jmp alias_callee |
| %p = musttail call swifttailcc i8* @alias_callee() |
| ret i8* %p |
| } |
| |
| declare dso_local swifttailcc noalias i8* @noalias_callee() |
| |
| define dso_local swifttailcc i8* @alias_caller() nounwind { |
| ; CHECK-LABEL: alias_caller: |
| ; CHECK: jmp noalias_callee # TAILCALL |
| %p = musttail call swifttailcc noalias i8* @noalias_callee() |
| ret i8* %p |
| } |
| |
| declare dso_local swifttailcc i32 @i32_callee() |
| |
| define dso_local swifttailcc i32 @ret_undef() nounwind { |
| ; CHECK-LABEL: ret_undef: |
| ; CHECK: jmp i32_callee # TAILCALL |
| %p = musttail call swifttailcc i32 @i32_callee() |
| ret i32 undef |
| } |
| |
| declare dso_local swifttailcc void @does_not_return() |
| |
| define dso_local swifttailcc i32 @noret() nounwind { |
| ; CHECK-LABEL: noret: |
| ; CHECK: jmp does_not_return |
| tail call swifttailcc void @does_not_return() |
| unreachable |
| } |
| |
| define dso_local swifttailcc void @void_test(i32, i32, i32, i32) { |
| ; CHECK-LABEL: void_test: |
| ; CHECK: jmp void_test |
| entry: |
| musttail call swifttailcc void @void_test( i32 %0, i32 %1, i32 %2, i32 %3) |
| ret void |
| } |
| |
| define dso_local swifttailcc i1 @i1test(i32, i32, i32, i32) { |
| ; CHECK-LABEL: i1test: |
| ; CHECK: jmp i1test |
| entry: |
| %4 = musttail call swifttailcc i1 @i1test( i32 %0, i32 %1, i32 %2, i32 %3) |
| ret i1 %4 |
| } |