1 ; Make sure that the alloca offset isn't lost when the alloca result is 2 ; used directly in a load or store. There must always be an LA or LAY. 3 ; 4 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-A 5 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-B 6 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-C 7 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-D 8 9 declare i64 @bar(i8 *%a) 10 11 define i64 @f1(i64 %length, i64 %index) { 12 ; CHECK-A-LABEL: f1: 13 ; CHECK-A: lgr %r15, [[ADDR:%r[1-5]]] 14 ; CHECK-A: la %r2, 160([[ADDR]]) 15 ; CHECK-A: mvi 0(%r2), 0 16 ; 17 ; CHECK-B-LABEL: f1: 18 ; CHECK-B: lgr %r15, [[ADDR:%r[1-5]]] 19 ; CHECK-B: la %r2, 160([[ADDR]]) 20 ; CHECK-B: mvi 4095(%r2), 1 21 ; 22 ; CHECK-C-LABEL: f1: 23 ; CHECK-C: lgr %r15, [[ADDR:%r[1-5]]] 24 ; CHECK-C-DAG: la %r2, 160([[ADDR]]) 25 ; CHECK-C-DAG: lhi [[TMP:%r[0-5]]], 2 26 ; CHECK-C: stc [[TMP]], 0({{%r3,%r2|%r2,%r3}}) 27 ; 28 ; CHECK-D-LABEL: f1: 29 ; CHECK-D: lgr %r15, [[ADDR:%r[1-5]]] 30 ; CHECK-D-DAG: la %r2, 160([[ADDR]]) 31 ; CHECK-D-DAG: lhi [[TMP:%r[0-5]]], 3 32 ; CHECK-D: stc [[TMP]], 4095({{%r3,%r2|%r2,%r3}}) 33 ; 34 ; CHECK-E-LABEL: f1: 35 ; CHECK-E: lgr %r15, [[ADDR:%r[1-5]]] 36 ; CHECK-E-DAG: la %r2, 160([[ADDR]]) 37 ; CHECK-E-DAG: lhi [[TMP:%r[0-5]]], 4 38 ; CHECK-E: stcy [[TMP]], 4096({{%r3,%r2|%r2,%r3}}) 39 %a = alloca i8, i64 %length 40 store volatile i8 0, i8 *%a 41 %b = getelementptr i8, i8 *%a, i64 4095 42 store volatile i8 1, i8 *%b 43 %c = getelementptr i8, i8 *%a, i64 %index 44 store volatile i8 2, i8 *%c 45 %d = getelementptr i8, i8 *%c, i64 4095 46 store volatile i8 3, i8 *%d 47 %e = getelementptr i8, i8 *%d, i64 1 48 store volatile i8 4, i8 *%e 49 %count = call i64 @bar(i8 *%a) 50 %res = add i64 %count, 1 51 ret i64 %res 52 } 53
