| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| |
| ;; Testing that x18 is not clobbered when passing pointers with the nest |
| ;; attribute on windows |
| |
| ; RUN: llc < %s -mtriple=aarch64-pc-windows-msvc | FileCheck %s --check-prefixes=CHECK,CHECK-NO-X18 |
| ; RUN: llc < %s -mtriple=aarch64-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-X18 |
| |
| define dso_local i64 @other(ptr nest %p) #0 { |
| ; CHECK-LABEL: other: |
| ; CHECK-X18: ldr x0, [x18] |
| ; CHECK-NO-X18: ldr x0, [x0] |
| %r = load i64, ptr %p |
| ; CHECK: ret |
| ret i64 %r |
| } |
| |
| define dso_local void @func() #0 { |
| ; CHECK-LABEL: func: |
| |
| |
| entry: |
| %p = alloca i64 |
| ; CHECK: mov w8, #1 |
| ; CHECK: stp x30, x8, [sp, #-16] |
| ; CHECK-X18: add x18, sp, #8 |
| store i64 1, ptr %p |
| ; CHECK-NO-X18: add x0, sp, #8 |
| ; CHECK: bl other |
| call void @other(ptr nest %p) |
| ; CHECK: ldr x30, [sp], #16 |
| ; CHECK: ret |
| ret void |
| } |
| |
| attributes #0 = { nounwind } |
