xref: /llvm-project/llvm/test/CodeGen/AArch64/pre-indexed-addrmode-with-constant-offset.ll (revision 1ee315ae7964c8433b772e0b5d667834994ba753)
1; RUN: llc -mtriple=aarch64-linux-gnu < %s | FileCheck %s
2
3; Reduced test from https://github.com/llvm/llvm-project/issues/60645.
4; To check that we are generating -32 as offset for the first store.
5
6define ptr @pr60645(ptr %ptr, i64 %t0) {
7; CHECK-LABEL: pr60645:
8; CHECK:       // %bb.0:
9; CHECK-NEXT:    sub x8, x0, x1, lsl #2
10; CHECK-NEXT:    str wzr, [x8, #-32]!
11; CHECK-NEXT:    stur wzr, [x8, #-8]
12; CHECK-NEXT:    ret
13  %t1 = add nuw nsw i64 %t0, 8
14  %t2 = mul i64 %t1, -4
15  %t3 = getelementptr i8, ptr %ptr, i64 %t2
16  %t4 = bitcast ptr %t3 to ptr
17  store i32 0, ptr %t4, align 4
18  %t5 = shl i64 %t1, 2
19  %t6 = sub nuw nsw i64 -8, %t5
20  %t7 = getelementptr i8, ptr %ptr, i64 %t6
21  %t8 = bitcast ptr %t7 to ptr
22  store i32 0, ptr %t8, align 4
23  ret ptr %ptr
24}
25