1; RUN: llc -mattr=sram,movw,addsubiw < %s -mtriple=avr | FileCheck %s 2 3declare void @llvm.va_start(ptr) 4declare i16 @vsprintf(ptr nocapture, ptr nocapture, ptr) 5declare void @llvm.va_end(ptr) 6 7define i16 @varargs1(ptr nocapture %x, ...) { 8; CHECK-LABEL: varargs1: 9; CHECK: movw r20, r28 10; CHECK: subi r20, 215 11; CHECK: sbci r21, 255 12; CHECK: movw r24, r28 13; CHECK: adiw r24, 3 14; CHECK: ldd r22, Y+39 15; CHECK: ldd r23, Y+40 16; CHECK: call 17 %buffer = alloca [32 x i8] 18 %ap = alloca ptr 19 %ap1 = bitcast ptr %ap to ptr 20 call void @llvm.va_start(ptr %ap1) 21 %arraydecay = getelementptr inbounds [32 x i8], ptr %buffer, i16 0, i16 0 22 %1 = load ptr, ptr %ap 23 %call = call i16 @vsprintf(ptr %arraydecay, ptr %x, ptr %1) 24 call void @llvm.va_end(ptr %ap1) 25 ret i16 0 26} 27 28define i16 @varargs2(ptr nocapture %x, ...) { 29; CHECK-LABEL: varargs2: 30; CHECK: ldd r24, [[REG:X|Y|Z]]+{{[0-9]+}} 31; CHECK: ldd r25, [[REG]]+{{[0-9]+}} 32 %ap = alloca ptr 33 %ap1 = bitcast ptr %ap to ptr 34 call void @llvm.va_start(ptr %ap1) 35 %1 = va_arg ptr %ap, i16 36 call void @llvm.va_end(ptr %ap1) 37 ret i16 %1 38} 39 40declare void @var1223(i16, ...) 41define void @varargcall() { 42; CHECK-LABEL: varargcall: 43; CHECK: ldi [[REG1:r[0-9]+]], 191 44; CHECK: ldi [[REG2:r[0-9]+]], 223 45; CHECK: std Z+6, [[REG2]] 46; CHECK: std Z+5, [[REG1]] 47; CHECK: ldi [[REG1:r[0-9]+]], 189 48; CHECK: ldi [[REG2:r[0-9]+]], 205 49; CHECK: std Z+4, [[REG2]] 50; CHECK: std Z+3, [[REG1]] 51; CHECK: ldi [[REG1:r[0-9]+]], 205 52; CHECK: ldi [[REG2:r[0-9]+]], 171 53; CHECK: std Z+2, [[REG2]] 54; CHECK: std Z+1, [[REG1]] 55; CHECK: call 56; CHECK: adiw r30, 6 57 tail call void (i16, ...) @var1223(i16 -21555, i16 -12867, i16 -8257) 58 ret void 59} 60