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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=instsimplify < %s | FileCheck %s
define <4 x i32> @test1(<4 x i32> %A) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: ret <4 x i32> poison
;
%I = insertelement <4 x i32> %A, i32 5, i64 4294967296
ret <4 x i32> %I
}
define <4 x i32> @test2(<4 x i32> %A) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: ret <4 x i32> poison
;
%I = insertelement <4 x i32> %A, i32 5, i64 4
ret <4 x i32> %I
}
define <4 x i32> @test3(<4 x i32> %A) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: [[I:%.*]] = insertelement <4 x i32> [[A:%.*]], i32 5, i64 1
; CHECK-NEXT: ret <4 x i32> [[I]]
;
%I = insertelement <4 x i32> %A, i32 5, i64 1
ret <4 x i32> %I
}
define <4 x i32> @test4(<4 x i32> %A) {
; CHECK-LABEL: @test4(
; CHECK-NEXT: ret <4 x i32> poison
;
%I = insertelement <4 x i32> %A, i32 5, i128 100
ret <4 x i32> %I
}
define <4 x i32> @test5(<4 x i32> %A) {
; CHECK-LABEL: @test5(
; CHECK-NEXT: ret <4 x i32> poison
;
%I = insertelement <4 x i32> %A, i32 5, i64 undef
ret <4 x i32> %I
}
define <4 x i32> @test5_poison(<4 x i32> %A) {
; CHECK-LABEL: @test5_poison(
; CHECK-NEXT: ret <4 x i32> poison
;
%I = insertelement <4 x i32> %A, i32 5, i64 poison
ret <4 x i32> %I
}
define <4 x i32> @elem_poison(<4 x i32> %A) {
; CHECK-LABEL: @elem_poison(
; CHECK-NEXT: ret <4 x i32> [[A:%.*]]
;
%B = insertelement <4 x i32> %A, i32 poison, i32 1
ret <4 x i32> %B
}
; The undef may be replacing a poison value, so it is not safe to just return 'A'.
define <4 x i32> @PR1286(<4 x i32> %A) {
; CHECK-LABEL: @PR1286(
; CHECK-NEXT: [[B:%.*]] = insertelement <4 x i32> [[A:%.*]], i32 undef, i32 1
; CHECK-NEXT: ret <4 x i32> [[B]]
;
%B = insertelement <4 x i32> %A, i32 undef, i32 1
ret <4 x i32> %B
}
; Constant is not poison, so this can simplify.
define <2 x i32> @undef_into_constant_vector_with_variable_index(<2 x i32> %A, i32 %Index) {
; CHECK-LABEL: @undef_into_constant_vector_with_variable_index(
; CHECK-NEXT: ret <2 x i32> <i32 42, i32 -42>
;
%B = insertelement <2 x i32> <i32 42, i32 -42>, i32 undef, i32 %Index
ret <2 x i32> %B
}
define <8 x i8> @extract_insert_same_vec_and_index(<8 x i8> %in) {
; CHECK-LABEL: @extract_insert_same_vec_and_index(
; CHECK-NEXT: ret <8 x i8> [[IN:%.*]]
;
%val = extractelement <8 x i8> %in, i32 5
%vec = insertelement <8 x i8> %in, i8 %val, i32 5
ret <8 x i8> %vec
}
define <8 x i8> @extract_insert_same_vec_and_index2(<8 x i8> %in, i32 %index) {
; CHECK-LABEL: @extract_insert_same_vec_and_index2(
; CHECK-NEXT: ret <8 x i8> [[IN:%.*]]
;
%val = extractelement <8 x i8> %in, i32 %index
%vec = insertelement <8 x i8> %in, i8 %val, i32 %index
ret <8 x i8> %vec
}
; The insert is in an unreachable block, so it is allowed to point to itself.
; This would crash via stack overflow.
define void @PR43218() {
; CHECK-LABEL: @PR43218(
; CHECK-NEXT: end:
; CHECK-NEXT: ret void
; CHECK: unreachable_infloop:
; CHECK-NEXT: [[EXTRACT:%.*]] = extractelement <2 x i64> [[BOGUS:%.*]], i32 0
; CHECK-NEXT: [[T0:%.*]] = inttoptr i64 [[EXTRACT]] to ptr
; CHECK-NEXT: [[BOGUS]] = insertelement <2 x i64> [[BOGUS]], i64 undef, i32 1
; CHECK-NEXT: br label [[UNREACHABLE_INFLOOP:%.*]]
;
end:
ret void
unreachable_infloop:
%extract = extractelement <2 x i64> %bogus, i32 0
%t0 = inttoptr i64 %extract to ptr
%bogus = insertelement <2 x i64> %bogus, i64 undef, i32 1
br label %unreachable_infloop
}
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