File: sve-alloca-stackid.ll

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llvm-toolchain-19 1%3A19.1.7-3
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; RUN: llc -mtriple=aarch64 -mattr=+sve < %s | FileCheck %s --check-prefix=CHECKCG
; RUN: llc -mtriple=aarch64 -mattr=+sve -stop-after=finalize-isel < %s | FileCheck %s --check-prefix=CHECKISEL

; CHECKCG-LABEL: foo:
; CHECKCG: addvl   sp, sp, #-1

; CHECKISEL-LABEL: name: foo
; CHECKISEL:       stack:
; CHECKISEL:       id: 0, name: ptr, type: default, offset: 0, size: 16, alignment: 16,
; CHECKISEL-NEXT:  stack-id: scalable-vector
define i32 @foo(<vscale x 16 x i8> %val) {
  %ptr = alloca <vscale x 16 x i8>
  %res = call i32 @bar(ptr %ptr)
  ret i32 %res
}

declare i32 @bar(ptr %ptr);

; CHECKCG-LABEL: foo2:
; CHECKCG: addvl   sp, sp, #-2

; CHECKISEL-LABEL: name: foo2
; CHECKISEL:       stack:
; CHECKISEL:       id: 0, name: ptr, type: default, offset: 0, size: 32, alignment: 16,
; CHECKISEL-NEXT:  stack-id: scalable-vector

define i32 @foo2(<vscale x 32 x i8> %val) {
  %ptr = alloca <vscale x 32 x i8>, align 16
  %res = call i32 @bar2(ptr %ptr)
  ret i32 %res
}
declare i32 @bar2(ptr %ptr);