1 ; RUN: llc -verify-machineinstrs < %s | FileCheck %s 2 3 target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16" 4 target triple = "msp430---elf" 5 6 declare void @llvm.va_start(i8*) nounwind 7 declare void @llvm.va_end(i8*) nounwind 8 declare void @llvm.va_copy(i8*, i8*) nounwind 9 10 define void @va_start(i16 %a, ...) nounwind { 11 entry: 12 ; CHECK-LABEL: va_start: 13 ; CHECK: sub.w #2, r1 14 %vl = alloca i8*, align 2 15 %vl1 = bitcast i8** %vl to i8* 16 ; CHECK-NEXT: mov.w r1, [[REG:r[0-9]+]] 17 ; CHECK-NEXT: add.w #6, [[REG]] 18 ; CHECK-NEXT: mov.w [[REG]], 0(r1) 19 call void @llvm.va_start(i8* %vl1) 20 call void @llvm.va_end(i8* %vl1) 21 ret void 22 } 23 24 define i16 @va_arg(i8* %vl) nounwind { 25 entry: 26 ; CHECK-LABEL: va_arg: 27 %vl.addr = alloca i8*, align 2 28 store i8* %vl, i8** %vl.addr, align 2 29 ; CHECK: mov.w r12, [[REG:r[0-9]+]] 30 ; CHECK-NEXT: add.w #2, [[REG]] 31 ; CHECK-NEXT: mov.w [[REG]], 0(r1) 32 %0 = va_arg i8** %vl.addr, i16 33 ; CHECK-NEXT: mov.w 0(r12), r12 34 ret i16 %0 35 } 36 37 define void @va_copy(i8* %vl) nounwind { 38 entry: 39 ; CHECK-LABEL: va_copy: 40 %vl.addr = alloca i8*, align 2 41 %vl2 = alloca i8*, align 2 42 ; CHECK-DAG: mov.w r12, 2(r1) 43 store i8* %vl, i8** %vl.addr, align 2 44 %0 = bitcast i8** %vl2 to i8* 45 %1 = bitcast i8** %vl.addr to i8* 46 ; CHECK-DAG: mov.w r12, 0(r1) 47 call void @llvm.va_copy(i8* %0, i8* %1) 48 ret void 49 } 50
