llvm/test/Analysis/ConstantFolding/cast-vector.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instsimplify -S | FileCheck %s

; Test constant fold of constant expression GEP used by ptrtoint (the
; "offsetof-like expression" case).
; This used to hit an assert due to not supporting vectors in
; llvm::ConstantFoldCastInstruction when handling ptrtoint.
define <2 x i16> @test1() {
; CHECK-LABEL: @test1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    ret <2 x i16> ptrtoint (<2 x i32*> getelementptr ([10 x i32], [10 x i32]* null, <2 x i64> zeroinitializer, <2 x i64> <i64 5, i64 7>) to <2 x i16>)
;
entry:
  %gep = getelementptr inbounds [10 x i32], [10 x i32]* null, i16 0, <2 x i16> <i16 5, i16 7>
  %vec = ptrtoint <2 x i32*> %gep to <2 x i16>
  ret <2 x i16> %vec
}

; Test constant fold of constant expression GEP used by ptrtoint (the
; "sizeof-like expression" case).
; This used to hit an assert due to not supporting vectors in
; llvm::ConstantFoldCastInstruction when handling ptrtoint.
define <2 x i16> @test2() {
; CHECK-LABEL: @test2(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    ret <2 x i16> ptrtoint (<2 x i32*> getelementptr (i32, i32* null, <2 x i64> <i64 5, i64 7>) to <2 x i16>)
;
entry:
  %gep = getelementptr i32, i32* null, <2 x i16> <i16 5, i16 7>
  %vec = ptrtoint <2 x i32*> %gep to <2 x i16>
  ret <2 x i16> %vec
}