| ; Make sure that the alloca offset isn't lost when the alloca result is |
| ; used directly in a load or store. There must always be an LA or LAY. |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-A |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-B |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-C |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-D |
| |
| declare i64 @bar(i8 *%a) |
| |
| define i64 @f1(i64 %length, i64 %index) { |
| ; CHECK-A: f1: |
| ; CHECK-A: lgr %r15, [[ADDR:%r[1-5]]] |
| ; CHECK-A: la %r2, 160([[ADDR]]) |
| ; CHECK-A: mvi 0(%r2), 0 |
| ; |
| ; CHECK-B: f1: |
| ; CHECK-B: lgr %r15, [[ADDR:%r[1-5]]] |
| ; CHECK-B: la %r2, 160([[ADDR]]) |
| ; CHECK-B: mvi 4095(%r2), 1 |
| ; |
| ; CHECK-C: f1: |
| ; CHECK-C: lgr %r15, [[ADDR:%r[1-5]]] |
| ; CHECK-C: la [[TMP:%r[1-5]]], 160(%r3,[[ADDR]]) |
| ; CHECK-C: mvi 0([[TMP]]), 2 |
| ; |
| ; CHECK-D: f1: |
| ; CHECK-D: lgr %r15, [[ADDR:%r[1-5]]] |
| ; CHECK-D: la [[TMP:%r[1-5]]], 160(%r3,[[ADDR]]) |
| ; CHECK-D: mvi 4095([[TMP]]), 3 |
| ; |
| ; CHECK-E: f1: |
| ; CHECK-E: lgr %r15, [[ADDR:%r[1-5]]] |
| ; CHECK-E: la [[TMP:%r[1-5]]], 160(%r3,[[ADDR]]) |
| ; CHECK-E: mviy 4096([[TMP]]), 4 |
| %a = alloca i8, i64 %length |
| store i8 0, i8 *%a |
| %b = getelementptr i8 *%a, i64 4095 |
| store i8 1, i8 *%b |
| %c = getelementptr i8 *%a, i64 %index |
| store i8 2, i8 *%c |
| %d = getelementptr i8 *%c, i64 4095 |
| store i8 3, i8 *%d |
| %e = getelementptr i8 *%d, i64 1 |
| store i8 4, i8 *%e |
| %count = call i64 @bar(i8 *%a) |
| %res = add i64 %count, 1 |
| ret i64 %res |
| } |
