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llvm-mirror/test/CodeGen/AArch64/sve-alloca-stackid.ll
David Sherwood 1652ed61e6 [SVE][CodeGen] Add README for SVE-related warnings in tests
I have added a new file:

  llvm/test/CodeGen/AArch64/README

that describes what to do in the event one of the SVE codegen tests
fails the warnings check. In addition, I've added comments to all
the relevant SVE tests pointing users at the README file.

Differential Revision: https://reviews.llvm.org/D83467
2020-07-14 08:31:10 +01:00

37 lines
1.2 KiB
LLVM

; RUN: llc -mtriple=aarch64 -mattr=+sve < %s 2>%t | FileCheck %s --check-prefix=CHECKCG
; RUN: llc -mtriple=aarch64 -mattr=+sve -stop-after=finalize-isel < %s | FileCheck %s --check-prefix=CHECKISEL
; RUN: FileCheck --check-prefix=WARN --allow-empty %s <%t
; If this check fails please read test/CodeGen/AArch64/README for instructions on how to resolve it.
; WARN-NOT: warning
; 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: sve-vec
define i32 @foo(<vscale x 16 x i8> %val) {
%ptr = alloca <vscale x 16 x i8>
%res = call i32 @bar(<vscale x 16 x i8>* %ptr)
ret i32 %res
}
declare i32 @bar(<vscale x 16 x i8>* %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: sve-vec
define i32 @foo2(<vscale x 32 x i8> %val) {
%ptr = alloca <vscale x 32 x i8>, align 16
%res = call i32 @bar2(<vscale x 32 x i8>* %ptr)
ret i32 %res
}
declare i32 @bar2(<vscale x 32 x i8>* %ptr);