28 lines
1.1 KiB
LLVM
28 lines
1.1 KiB
LLVM
; RUN: opt -instcombine -S < %s | FileCheck %s
|
|
|
|
; This vscale udiv with a power-of-2 spalt on the rhs should not crash opt
|
|
|
|
; CHECK: define <vscale x 2 x i32> @udiv_pow2_vscale(<vscale x 2 x i32> %lhs)
|
|
define <vscale x 2 x i32> @udiv_pow2_vscale(<vscale x 2 x i32> %lhs) {
|
|
%splatter = insertelement <vscale x 2 x i32> poison, i32 2, i32 0
|
|
%rhs = shufflevector <vscale x 2 x i32> %splatter,
|
|
<vscale x 2 x i32> undef,
|
|
<vscale x 2 x i32> zeroinitializer
|
|
%res = udiv <vscale x 2 x i32> %lhs, %rhs
|
|
ret <vscale x 2 x i32> %res
|
|
}
|
|
|
|
; This fixed width udiv with a power-of-2 splat on the rhs should also not
|
|
; crash, and instcombine should eliminate the udiv
|
|
|
|
; CHECK-LABEL: define <2 x i32> @udiv_pow2_fixed(<2 x i32> %lhs)
|
|
; CHECK-NOT: udiv
|
|
define <2 x i32> @udiv_pow2_fixed(<2 x i32> %lhs) {
|
|
%splatter = insertelement <2 x i32> poison, i32 2, i32 0
|
|
%rhs = shufflevector <2 x i32> %splatter,
|
|
<2 x i32> undef,
|
|
<2 x i32> zeroinitializer
|
|
%res = udiv <2 x i32> %lhs, %rhs
|
|
ret <2 x i32> %res
|
|
}
|