1; RUN: llc -mtriple aarch64-windows -verify-machineinstrs -filetype asm -o - %s | FileCheck %s -check-prefixes=CHECK,CHECK-OPT 2; RUN: llc -mtriple aarch64-windows -verify-machineinstrs -filetype asm -o - %s -O0 | FileCheck %s 3; RUN: llc -mtriple arm64ec-windows-msvc -verify-machineinstrs -filetype asm -o - %s | FileCheck -check-prefix=CHECK-ARM64EC %s 4 5define void @func(i64 %a) { 6entry: 7 %0 = alloca i8, i64 %a, align 16 8 call void @func2(ptr nonnull %0) 9 ret void 10} 11 12declare void @func2(ptr) 13 14; The -O0 version here ends up much less elegant, so just check the 15; details of the optimized form, but check that -O0 at least emits the 16; call to __chkstk. 17 18; CHECK: add [[REG1:x[0-9]+]], x0, #15 19; CHECK-OPT: lsr x15, [[REG1]], #4 20; CHECK: bl __chkstk 21; CHECK-OPT: sub [[REG3:x[0-9]+]], sp, x15, lsl #4 22; CHECK-OPT: mov sp, [[REG3]] 23; CHECK: bl func2 24; CHECK-ARM64EC: bl "#__chkstk_arm64ec" 25