llvm-mirror/test/Verifier/scalable-aggregates.ll
Graham Hunter 582e630731 [SVE][IR] Scalable Vector IR Type
* Adds a 'scalable' flag to VectorType
* Adds an 'ElementCount' class to VectorType to pass (possibly scalable) vector lengths, with overloaded operators.
* Modifies existing helper functions to use ElementCount
* Adds support for serializing/deserializing to/from both textual and bitcode IR formats
* Extends the verifier to reject global variables of scalable types
* Updates documentation

See the latest version of the RFC here: http://lists.llvm.org/pipermail/llvm-dev/2018-July/124396.html

Reviewers: rengolin, lattner, echristo, chandlerc, hfinkel, rkruppe, samparker, SjoerdMeijer, greened, sebpop

Reviewed By: hfinkel, sebpop

Differential Revision: https://reviews.llvm.org/D32530

llvm-svn: 361953
2019-05-29 12:22:54 +00:00

31 lines
1.4 KiB
LLVM

; RUN: not opt -S -verify < %s 2>&1 | FileCheck %s
;; Arrays and Structs cannot contain scalable vectors, since we don't
;; know the size at compile time and the container types need to have
;; a known size.
; CHECK-DAG: Arrays cannot contain scalable vectors
; CHECK-DAG: [2 x { i32, <vscale x 1 x i32> }]; ModuleID = '<stdin>'
; CHECK-DAG: Arrays cannot contain scalable vectors
; CHECK-DAG: [4 x <vscale x 256 x i1>]; ModuleID = '<stdin>'
; CHECK-DAG: Arrays cannot contain scalable vectors
; CHECK-DAG: [2 x <vscale x 4 x i32>]; ModuleID = '<stdin>'
; CHECK-DAG: Structs cannot contain scalable vectors
; CHECK-DAG: { i64, [4 x <vscale x 256 x i1>] }; ModuleID = '<stdin>'
; CHECK-DAG: Structs cannot contain scalable vectors
; CHECK-DAG: { i32, <vscale x 1 x i32> }; ModuleID = '<stdin>'
; CHECK-DAG: Structs cannot contain scalable vectors
; CHECK-DAG: { <vscale x 16 x i8>, <vscale x 2 x double> }; ModuleID = '<stdin>'
; CHECK-DAG: Structs cannot contain scalable vectors
; CHECK-DAG: %sty = type { i64, <vscale x 32 x i16> }; ModuleID = '<stdin>'
%sty = type { i64, <vscale x 32 x i16> }
define void @scalable_aggregates() {
%array = alloca [2 x <vscale x 4 x i32>]
%struct = alloca { <vscale x 16 x i8>, <vscale x 2 x double> }
%named_struct = alloca %sty
%s_in_a = alloca [2 x { i32, <vscale x 1 x i32> } ]
%a_in_s = alloca { i64, [4 x <vscale x 256 x i1> ] }
ret void
}