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1; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s2 3declare dso_local swifttailcc i32 @tailcallee(i32 %a1, i32 %a2, i32 %a3, i32 %a4)4 5define dso_local swifttailcc i32 @tailcaller(i32 %in1, i32 %in2) nounwind {6; CHECK-LABEL: tailcaller:7; CHECK-NOT: subq8; CHECK-NOT: addq9; CHECK: jmp tailcallee10entry:11 %tmp11 = musttail call swifttailcc i32 @tailcallee(i32 %in1, i32 %in2, i32 %in1, i32 %in2)12 ret i32 %tmp1113}14 15declare dso_local swifttailcc ptr @alias_callee()16 17define swifttailcc noalias ptr @noalias_caller() nounwind {18; CHECK-LABEL: noalias_caller:19; CHECK: jmp alias_callee20 %p = musttail call swifttailcc ptr @alias_callee()21 ret ptr %p22}23 24declare dso_local swifttailcc noalias ptr @noalias_callee()25 26define dso_local swifttailcc ptr @alias_caller() nounwind {27; CHECK-LABEL: alias_caller:28; CHECK: jmp noalias_callee # TAILCALL29 %p = musttail call swifttailcc noalias ptr @noalias_callee()30 ret ptr %p31}32 33declare dso_local swifttailcc i32 @i32_callee()34 35define dso_local swifttailcc i32 @ret_undef() nounwind {36; CHECK-LABEL: ret_undef:37; CHECK: jmp i32_callee # TAILCALL38 %p = musttail call swifttailcc i32 @i32_callee()39 ret i32 undef40}41 42declare dso_local swifttailcc void @does_not_return()43 44define dso_local swifttailcc i32 @noret() nounwind {45; CHECK-LABEL: noret:46; CHECK: jmp does_not_return47 tail call swifttailcc void @does_not_return()48 unreachable49}50 51define dso_local swifttailcc void @void_test(i32, i32, i32, i32) {52; CHECK-LABEL: void_test:53; CHECK: jmp void_test54 entry:55 musttail call swifttailcc void @void_test( i32 %0, i32 %1, i32 %2, i32 %3)56 ret void57}58 59define dso_local swifttailcc i1 @i1test(i32, i32, i32, i32) {60; CHECK-LABEL: i1test:61; CHECK: jmp i1test62 entry:63 %4 = musttail call swifttailcc i1 @i1test( i32 %0, i32 %1, i32 %2, i32 %3)64 ret i1 %465}66