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llvm-project/llvm/test/CodeGen/AArch64/no-stack-arg-probe.ll

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[ARM, AArch64] Check the no-stack-arg-probe attribute for dynamic stack probes This extends the use of this attribute on ARM and AArch64 from SVN r325900 (where it was only checked for fixed stack allocations on ARM/AArch64, but for all stack allocations on X86). This also adds a testcase for the existing use of disabling the fixed stack probe with the attribute on ARM and AArch64. Differential Revision: https://reviews.llvm.org/D44291 llvm-svn: 327897
2018-03-20 04:06:50 +08:00
; RUN: llc -mtriple=aarch64-windows -verify-machineinstrs %s -o - \
; RUN: | FileCheck %s
define void @check_watermark() "no-stack-arg-probe" {
entry:
%buffer = alloca [4096 x i8], align 1
ret void
}
; CHECK: check_watermark:
; CHECK: sub sp, sp, #1, lsl #12
; CHECK-NOT: bl __chkstk