| ; RUN: llc -mtriple aarch64-windows -verify-machineinstrs -filetype asm -o - %s | FileCheck %s -check-prefixes=CHECK,CHECK-OPT | |
| ; RUN: llc -mtriple aarch64-windows -verify-machineinstrs -filetype asm -o - %s -O0 | FileCheck %s | |
| define void @func(i64 %a) { | |
| entry: | |
| %0 = alloca i8, i64 %a, align 16 | |
| call void @func2(i8* nonnull %0) | |
| ret void | |
| } | |
| declare void @func2(i8*) | |
| ; The -O0 version here ends up much less elegant, so just check the | |
| ; details of the optimized form, but check that -O0 at least emits the | |
| ; call to __chkstk. | |
| ; CHECK: add [[REG1:x[0-9]+]], x0, #15 | |
| ; CHECK-OPT: lsr x15, [[REG1]], #4 | |
| ; CHECK: bl __chkstk | |
| ; CHECK: mov [[REG2:x[0-9]+]], sp | |
| ; CHECK-OPT: sub [[REG3:x[0-9]+]], [[REG2]], x15, lsl #4 | |
| ; CHECK-OPT: mov sp, [[REG3]] | |
| ; CHECK: bl func2 |