1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3 2; RUN: llc < %s -frame-pointer=all -mtriple=arm64-windows | FileCheck %s 3 4; Test generated from C code: 5; #include <stdarg.h> 6; ptr foo() { 7; return _AddressOfReturnAddress(); 8; } 9; int bar(int x(va_list, ptr), ...) { 10; va_list y; 11; va_start(y, x); 12; return x(y, _AddressOfReturnAddress()) + 1; 13; } 14 15declare void @llvm.va_start(ptr) 16declare ptr @llvm.addressofreturnaddress() 17 18define dso_local ptr @"foo"() { 19; CHECK-LABEL: foo: 20; CHECK: .seh_proc foo 21; CHECK-NEXT: // %bb.0: // %entry 22; CHECK-NEXT: stp x29, x30, [sp, #-16]! // 16-byte Folded Spill 23; CHECK-NEXT: .seh_save_fplr_x 16 24; CHECK-NEXT: mov x29, sp 25; CHECK-NEXT: .seh_set_fp 26; CHECK-NEXT: .seh_endprologue 27; CHECK-NEXT: add x0, x29, #8 28; CHECK-NEXT: .seh_startepilogue 29; CHECK-NEXT: ldp x29, x30, [sp], #16 // 16-byte Folded Reload 30; CHECK-NEXT: .seh_save_fplr_x 16 31; CHECK-NEXT: .seh_endepilogue 32; CHECK-NEXT: ret 33; CHECK-NEXT: .seh_endfunclet 34; CHECK-NEXT: .seh_endproc 35entry: 36 %0 = call ptr @llvm.addressofreturnaddress() 37 ret ptr %0 38} 39 40define dso_local i32 @"bar"(ptr %x, ...) { 41; CHECK-LABEL: bar: 42; CHECK: .seh_proc bar 43; CHECK-NEXT: // %bb.0: // %entry 44; CHECK-NEXT: sub sp, sp, #96 45; CHECK-NEXT: .seh_stackalloc 96 46; CHECK-NEXT: stp x29, x30, [sp, #16] // 16-byte Folded Spill 47; CHECK-NEXT: .seh_save_fplr 16 48; CHECK-NEXT: add x29, sp, #16 49; CHECK-NEXT: .seh_add_fp 16 50; CHECK-NEXT: .seh_endprologue 51; CHECK-NEXT: add x9, x29, #24 52; CHECK-NEXT: mov x8, x0 53; CHECK-NEXT: stp x1, x2, [x29, #24] 54; CHECK-NEXT: stp x9, x0, [sp] 55; CHECK-NEXT: add x0, x29, #24 56; CHECK-NEXT: add x1, x29, #8 57; CHECK-NEXT: stp x3, x4, [x29, #40] 58; CHECK-NEXT: stp x5, x6, [x29, #56] 59; CHECK-NEXT: str x7, [x29, #72] 60; CHECK-NEXT: blr x8 61; CHECK-NEXT: add w0, w0, #1 62; CHECK-NEXT: .seh_startepilogue 63; CHECK-NEXT: ldp x29, x30, [sp, #16] // 16-byte Folded Reload 64; CHECK-NEXT: .seh_save_fplr 16 65; CHECK-NEXT: add sp, sp, #96 66; CHECK-NEXT: .seh_stackalloc 96 67; CHECK-NEXT: .seh_endepilogue 68; CHECK-NEXT: ret 69; CHECK-NEXT: .seh_endfunclet 70; CHECK-NEXT: .seh_endproc 71entry: 72 %x.addr = alloca ptr, align 8 73 %y = alloca ptr, align 8 74 store ptr %x, ptr %x.addr, align 8 75 call void @llvm.va_start(ptr %y) 76 %0 = load ptr, ptr %x.addr, align 8 77 %1 = call ptr @llvm.addressofreturnaddress() 78 %2 = load ptr, ptr %y, align 8 79 %call = call i32 %0(ptr %2, ptr %1) 80 %add = add nsw i32 %call, 1 81 ret i32 %add 82} 83