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1; RUN: llc < %s -mtriple=avr -mattr=avr6 | FileCheck %s2 3declare i16 @allocate(ptr, ptr)4 5; Test taking an address of an alloca with a small offset (adiw)6define i16 @alloca_addressof_small() {7entry:8; CHECK-LABEL: alloca_addressof_small:9; Test that Y is saved10; CHECK: push r2811; CHECK: push r2912; CHECK: movw r24, r2813; CHECK: adiw r24, 1714; CHECK: movw {{.*}}, r2815; CHECK: adiw {{.*}}, 3916; CHECK: movw r22, {{.*}}17; CHECK: pop r2918; CHECK: pop r2819 %p = alloca [18 x i16]20 %k = alloca [14 x i16]21 %arrayidx = getelementptr inbounds [14 x i16], ptr %k, i16 0, i16 822 %arrayidx1 = getelementptr inbounds [18 x i16], ptr %p, i16 0, i16 523 %call = call i16 @allocate(ptr %arrayidx, ptr %arrayidx1)24 ret i16 %call25}26 27; Test taking an address of an alloca with a big offset (subi/sbci pair)28define i16 @alloca_addressof_big() {29entry:30; CHECK-LABEL: alloca_addressof_big:31; CHECK: movw r24, r2832; CHECK: adiw r24, 1733; CHECK: movw r22, r2834; CHECK: subi r22, 14535; CHECK: sbci r23, 25536 %p = alloca [55 x i16]37 %k = alloca [14 x i16]38 %arrayidx = getelementptr inbounds [14 x i16], ptr %k, i16 0, i16 839 %arrayidx1 = getelementptr inbounds [55 x i16], ptr %p, i16 0, i16 4140 %call = call i16 @allocate(ptr %arrayidx, ptr %arrayidx1)41 ret i16 %call42}43 44; Test writing to an allocated variable with a small and a big offset45define i16 @alloca_write(i16 %x) {46entry:47; CHECK-LABEL: alloca_write:48; Small offset here49; CHECK: std Y+24, {{.*}}50; CHECK: std Y+23, {{.*}}51; Big offset here52; CHECK: adiw r28, 5753; CHECK: std Y+63, {{.*}}54; CHECK: std Y+62, {{.*}}55; CHECK: sbiw r28, 5756 %p = alloca [15 x i16]57 %k = alloca [14 x i16]58 %arrayidx = getelementptr inbounds [15 x i16], ptr %p, i16 0, i16 4559 store i16 22, ptr %arrayidx60 %arrayidx1 = getelementptr inbounds [14 x i16], ptr %k, i16 0, i16 1161 store i16 42, ptr %arrayidx162 %arrayidx2 = getelementptr inbounds [14 x i16], ptr %k, i16 0, i16 063 %arrayidx3 = getelementptr inbounds [15 x i16], ptr %p, i16 0, i16 064 %call = call i16 @allocate(ptr %arrayidx2, ptr %arrayidx3)65 ret i16 %call66}67 68; Test writing to an allocated variable with a huge offset that cant be69; materialized with adiw/sbiw but with a subi/sbci pair.70define void @alloca_write_huge() {71; CHECK-LABEL: alloca_write_huge:72; CHECK: subi r28, 4173; CHECK: sbci r29, 25574; CHECK: std Y+63, {{.*}}75; CHECK: std Y+62, {{.*}}76; CHECK: subi r28, 21577; CHECK: sbci r29, 078 %k = alloca [140 x i16]79 %arrayidx = getelementptr inbounds [140 x i16], ptr %k, i16 0, i16 13880 store i16 22, ptr %arrayidx81 %arraydecay = getelementptr inbounds [140 x i16], ptr %k, i16 0, i16 082 call i16 @allocate(ptr %arraydecay, ptr null)83 ret void84}85