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; RUN: opt -S -passes=instsimplify < %s | FileCheck %s
; CHECK-LABEL: definitely_in_bounds
; CHECK: ret i8 0
define i8 @definitely_in_bounds() {
ret i8 extractelement (<vscale x 16 x i8> zeroinitializer, i64 15)
}
; CHECK-LABEL: maybe_in_bounds
; CHECK: ret i8 extractelement (<vscale x 16 x i8> zeroinitializer, i64 16)
define i8 @maybe_in_bounds() {
ret i8 extractelement (<vscale x 16 x i8> zeroinitializer, i64 16)
}
; Examples of extracting a lane from a splat constant
define i32 @extractconstant_shuffle_in_range(i32 %v) {
; CHECK-LABEL: @extractconstant_shuffle_in_range(
; CHECK-NEXT: ret i32 1024
;
%in = insertelement <vscale x 4 x i32> undef, i32 1024, i32 0
%splat = shufflevector <vscale x 4 x i32> %in, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
%r = extractelement <vscale x 4 x i32> %splat, i32 1
ret i32 %r
}
define i32 @extractconstant_shuffle_maybe_out_of_range(i32 %v) {
; CHECK-LABEL: @extractconstant_shuffle_maybe_out_of_range(
; CHECK-NEXT: ret i32 extractelement (<vscale x 4 x i32> shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> undef, i32 1024, i32 0), <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer), i32 4)
;
%in = insertelement <vscale x 4 x i32> undef, i32 1024, i32 0
%splat = shufflevector <vscale x 4 x i32> %in, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
%r = extractelement <vscale x 4 x i32> %splat, i32 4
ret i32 %r
}
define i32 @extractconstant_shuffle_invalid_index(i32 %v) {
; CHECK-LABEL: @extractconstant_shuffle_invalid_index(
; CHECK-NEXT: ret i32 extractelement (<vscale x 4 x i32> shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> undef, i32 1024, i32 0), <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer), i32 -1)
;
%in = insertelement <vscale x 4 x i32> undef, i32 1024, i32 0
%splat = shufflevector <vscale x 4 x i32> %in, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
%r = extractelement <vscale x 4 x i32> %splat, i32 -1
ret i32 %r
}
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