1 ; RUN: llc < %s -mtriple=x86_64-pc-win32 | FileCheck %s 2 3 ; Verify that the var arg parameters which are passed in registers are stored 4 ; in home stack slots allocated by the caller and that AP is correctly 5 ; calculated. 6 define void @average_va(i32 %count, ...) nounwind { 7 entry: 8 ; CHECK: pushq 9 ; CHECK: movq %r9, 40(%rsp) 10 ; CHECK: movq %r8, 32(%rsp) 11 ; CHECK: movq %rdx, 24(%rsp) 12 ; CHECK: leaq 24(%rsp), %rax 13 14 %ap = alloca i8*, align 8 ; <i8**> [#uses=1] 15 %ap1 = bitcast i8** %ap to i8* ; <i8*> [#uses=1] 16 call void @llvm.va_start(i8* %ap1) 17 ret void 18 } 19 20 declare void @llvm.va_start(i8*) nounwind 21 22 ; CHECK: f5: 23 ; CHECK: pushq 24 ; CHECK: leaq 56(%rsp), 25 define i8* @f5(i64 %a0, i64 %a1, i64 %a2, i64 %a3, i64 %a4, ...) nounwind { 26 entry: 27 %ap = alloca i8*, align 8 28 %ap1 = bitcast i8** %ap to i8* 29 call void @llvm.va_start(i8* %ap1) 30 ret i8* %ap1 31 } 32 33 ; CHECK: f4: 34 ; CHECK: pushq 35 ; CHECK: leaq 48(%rsp), 36 define i8* @f4(i64 %a0, i64 %a1, i64 %a2, i64 %a3, ...) nounwind { 37 entry: 38 %ap = alloca i8*, align 8 39 %ap1 = bitcast i8** %ap to i8* 40 call void @llvm.va_start(i8* %ap1) 41 ret i8* %ap1 42 } 43 44 ; CHECK: f3: 45 ; CHECK: pushq 46 ; CHECK: leaq 40(%rsp), 47 define i8* @f3(i64 %a0, i64 %a1, i64 %a2, ...) nounwind { 48 entry: 49 %ap = alloca i8*, align 8 50 %ap1 = bitcast i8** %ap to i8* 51 call void @llvm.va_start(i8* %ap1) 52 ret i8* %ap1 53 } 54
