456 lines
16 KiB
LLVM
456 lines
16 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -instcombine -S -data-layout="e-n64" | FileCheck %s --check-prefixes=ANY,LE
|
|
; RUN: opt < %s -instcombine -S -data-layout="E-n64" | FileCheck %s --check-prefixes=ANY,BE
|
|
|
|
define i32 @extractelement_out_of_range(<2 x i32> %x) {
|
|
; ANY-LABEL: @extractelement_out_of_range(
|
|
; ANY-NEXT: ret i32 poison
|
|
;
|
|
%E1 = extractelement <2 x i32> %x, i8 16
|
|
ret i32 %E1
|
|
}
|
|
|
|
define i32 @extractelement_type_out_of_range(<2 x i32> %x) {
|
|
; ANY-LABEL: @extractelement_type_out_of_range(
|
|
; ANY-NEXT: [[E1:%.*]] = extractelement <2 x i32> [[X:%.*]], i64 0
|
|
; ANY-NEXT: ret i32 [[E1]]
|
|
;
|
|
%E1 = extractelement <2 x i32> %x, i128 0
|
|
ret i32 %E1
|
|
}
|
|
|
|
define i32 @bitcasted_inselt_equal_num_elts(float %f) {
|
|
; ANY-LABEL: @bitcasted_inselt_equal_num_elts(
|
|
; ANY-NEXT: [[R:%.*]] = bitcast float [[F:%.*]] to i32
|
|
; ANY-NEXT: ret i32 [[R]]
|
|
;
|
|
%vf = insertelement <4 x float> undef, float %f, i32 0
|
|
%vi = bitcast <4 x float> %vf to <4 x i32>
|
|
%r = extractelement <4 x i32> %vi, i32 0
|
|
ret i32 %r
|
|
}
|
|
|
|
define i64 @test2(i64 %in) {
|
|
; ANY-LABEL: @test2(
|
|
; ANY-NEXT: ret i64 [[IN:%.*]]
|
|
;
|
|
%vec = insertelement <8 x i64> undef, i64 %in, i32 0
|
|
%splat = shufflevector <8 x i64> %vec, <8 x i64> undef, <8 x i32> zeroinitializer
|
|
%add = add <8 x i64> %splat, <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7>
|
|
%r = extractelement <8 x i64> %add, i32 0
|
|
ret i64 %r
|
|
}
|
|
|
|
define i32 @bitcasted_inselt_wide_source_zero_elt(i64 %x) {
|
|
; LE-LABEL: @bitcasted_inselt_wide_source_zero_elt(
|
|
; LE-NEXT: [[R:%.*]] = trunc i64 [[X:%.*]] to i32
|
|
; LE-NEXT: ret i32 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcasted_inselt_wide_source_zero_elt(
|
|
; BE-NEXT: [[TMP1:%.*]] = lshr i64 [[X:%.*]], 32
|
|
; BE-NEXT: [[R:%.*]] = trunc i64 [[TMP1]] to i32
|
|
; BE-NEXT: ret i32 [[R]]
|
|
;
|
|
%i = insertelement <2 x i64> zeroinitializer, i64 %x, i32 0
|
|
%b = bitcast <2 x i64> %i to <4 x i32>
|
|
%r = extractelement <4 x i32> %b, i32 0
|
|
ret i32 %r
|
|
}
|
|
|
|
define i16 @bitcasted_inselt_wide_source_modulo_elt(i64 %x) {
|
|
; LE-LABEL: @bitcasted_inselt_wide_source_modulo_elt(
|
|
; LE-NEXT: [[R:%.*]] = trunc i64 [[X:%.*]] to i16
|
|
; LE-NEXT: ret i16 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcasted_inselt_wide_source_modulo_elt(
|
|
; BE-NEXT: [[TMP1:%.*]] = lshr i64 [[X:%.*]], 48
|
|
; BE-NEXT: [[R:%.*]] = trunc i64 [[TMP1]] to i16
|
|
; BE-NEXT: ret i16 [[R]]
|
|
;
|
|
%i = insertelement <2 x i64> undef, i64 %x, i32 1
|
|
%b = bitcast <2 x i64> %i to <8 x i16>
|
|
%r = extractelement <8 x i16> %b, i32 4
|
|
ret i16 %r
|
|
}
|
|
|
|
define i32 @bitcasted_inselt_wide_source_not_modulo_elt(i64 %x) {
|
|
; LE-LABEL: @bitcasted_inselt_wide_source_not_modulo_elt(
|
|
; LE-NEXT: [[TMP1:%.*]] = lshr i64 [[X:%.*]], 32
|
|
; LE-NEXT: [[R:%.*]] = trunc i64 [[TMP1]] to i32
|
|
; LE-NEXT: ret i32 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcasted_inselt_wide_source_not_modulo_elt(
|
|
; BE-NEXT: [[R:%.*]] = trunc i64 [[X:%.*]] to i32
|
|
; BE-NEXT: ret i32 [[R]]
|
|
;
|
|
%i = insertelement <2 x i64> undef, i64 %x, i32 0
|
|
%b = bitcast <2 x i64> %i to <4 x i32>
|
|
%r = extractelement <4 x i32> %b, i32 1
|
|
ret i32 %r
|
|
}
|
|
|
|
define i8 @bitcasted_inselt_wide_source_not_modulo_elt_not_half(i32 %x) {
|
|
; LE-LABEL: @bitcasted_inselt_wide_source_not_modulo_elt_not_half(
|
|
; LE-NEXT: [[TMP1:%.*]] = lshr i32 [[X:%.*]], 16
|
|
; LE-NEXT: [[R:%.*]] = trunc i32 [[TMP1]] to i8
|
|
; LE-NEXT: ret i8 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcasted_inselt_wide_source_not_modulo_elt_not_half(
|
|
; BE-NEXT: [[TMP1:%.*]] = lshr i32 [[X:%.*]], 8
|
|
; BE-NEXT: [[R:%.*]] = trunc i32 [[TMP1]] to i8
|
|
; BE-NEXT: ret i8 [[R]]
|
|
;
|
|
%i = insertelement <2 x i32> undef, i32 %x, i32 0
|
|
%b = bitcast <2 x i32> %i to <8 x i8>
|
|
%r = extractelement <8 x i8> %b, i32 2
|
|
ret i8 %r
|
|
}
|
|
|
|
define i3 @bitcasted_inselt_wide_source_not_modulo_elt_not_half_weird_types(i15 %x) {
|
|
; LE-LABEL: @bitcasted_inselt_wide_source_not_modulo_elt_not_half_weird_types(
|
|
; LE-NEXT: [[TMP1:%.*]] = lshr i15 [[X:%.*]], 3
|
|
; LE-NEXT: [[R:%.*]] = trunc i15 [[TMP1]] to i3
|
|
; LE-NEXT: ret i3 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcasted_inselt_wide_source_not_modulo_elt_not_half_weird_types(
|
|
; BE-NEXT: [[TMP1:%.*]] = lshr i15 [[X:%.*]], 9
|
|
; BE-NEXT: [[R:%.*]] = trunc i15 [[TMP1]] to i3
|
|
; BE-NEXT: ret i3 [[R]]
|
|
;
|
|
%i = insertelement <3 x i15> undef, i15 %x, i32 0
|
|
%b = bitcast <3 x i15> %i to <15 x i3>
|
|
%r = extractelement <15 x i3> %b, i32 1
|
|
ret i3 %r
|
|
}
|
|
|
|
; Negative test for the above fold, but we can remove the insert here.
|
|
|
|
define i8 @bitcasted_inselt_wide_source_wrong_insert(<2 x i32> %v, i32 %x) {
|
|
; ANY-LABEL: @bitcasted_inselt_wide_source_wrong_insert(
|
|
; ANY-NEXT: [[B:%.*]] = bitcast <2 x i32> [[V:%.*]] to <8 x i8>
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <8 x i8> [[B]], i64 2
|
|
; ANY-NEXT: ret i8 [[R]]
|
|
;
|
|
%i = insertelement <2 x i32> %v, i32 %x, i32 1
|
|
%b = bitcast <2 x i32> %i to <8 x i8>
|
|
%r = extractelement <8 x i8> %b, i32 2
|
|
ret i8 %r
|
|
}
|
|
|
|
; Partial negative test for the above fold, extra uses are not allowed if shift is needed.
|
|
|
|
declare void @use(<8 x i8>)
|
|
|
|
define i8 @bitcasted_inselt_wide_source_uses(i32 %x) {
|
|
; LE-LABEL: @bitcasted_inselt_wide_source_uses(
|
|
; LE-NEXT: [[I:%.*]] = insertelement <2 x i32> undef, i32 [[X:%.*]], i64 0
|
|
; LE-NEXT: [[B:%.*]] = bitcast <2 x i32> [[I]] to <8 x i8>
|
|
; LE-NEXT: call void @use(<8 x i8> [[B]])
|
|
; LE-NEXT: [[R:%.*]] = extractelement <8 x i8> [[B]], i64 3
|
|
; LE-NEXT: ret i8 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcasted_inselt_wide_source_uses(
|
|
; BE-NEXT: [[I:%.*]] = insertelement <2 x i32> undef, i32 [[X:%.*]], i64 0
|
|
; BE-NEXT: [[B:%.*]] = bitcast <2 x i32> [[I]] to <8 x i8>
|
|
; BE-NEXT: call void @use(<8 x i8> [[B]])
|
|
; BE-NEXT: [[R:%.*]] = trunc i32 [[X]] to i8
|
|
; BE-NEXT: ret i8 [[R]]
|
|
;
|
|
%i = insertelement <2 x i32> undef, i32 %x, i32 0
|
|
%b = bitcast <2 x i32> %i to <8 x i8>
|
|
call void @use(<8 x i8> %b)
|
|
%r = extractelement <8 x i8> %b, i32 3
|
|
ret i8 %r
|
|
}
|
|
|
|
define float @bitcasted_inselt_to_FP(i64 %x) {
|
|
; LE-LABEL: @bitcasted_inselt_to_FP(
|
|
; LE-NEXT: [[TMP1:%.*]] = lshr i64 [[X:%.*]], 32
|
|
; LE-NEXT: [[TMP2:%.*]] = trunc i64 [[TMP1]] to i32
|
|
; LE-NEXT: [[R:%.*]] = bitcast i32 [[TMP2]] to float
|
|
; LE-NEXT: ret float [[R]]
|
|
;
|
|
; BE-LABEL: @bitcasted_inselt_to_FP(
|
|
; BE-NEXT: [[TMP1:%.*]] = trunc i64 [[X:%.*]] to i32
|
|
; BE-NEXT: [[R:%.*]] = bitcast i32 [[TMP1]] to float
|
|
; BE-NEXT: ret float [[R]]
|
|
;
|
|
%i = insertelement <2 x i64> undef, i64 %x, i32 0
|
|
%b = bitcast <2 x i64> %i to <4 x float>
|
|
%r = extractelement <4 x float> %b, i32 1
|
|
ret float %r
|
|
}
|
|
|
|
declare void @use_v2i128(<2 x i128>)
|
|
declare void @use_v8f32(<8 x float>)
|
|
|
|
define float @bitcasted_inselt_to_FP_uses(i128 %x) {
|
|
; ANY-LABEL: @bitcasted_inselt_to_FP_uses(
|
|
; ANY-NEXT: [[I:%.*]] = insertelement <2 x i128> undef, i128 [[X:%.*]], i64 0
|
|
; ANY-NEXT: call void @use_v2i128(<2 x i128> [[I]])
|
|
; ANY-NEXT: [[B:%.*]] = bitcast <2 x i128> [[I]] to <8 x float>
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <8 x float> [[B]], i64 1
|
|
; ANY-NEXT: ret float [[R]]
|
|
;
|
|
%i = insertelement <2 x i128> undef, i128 %x, i32 0
|
|
call void @use_v2i128(<2 x i128> %i)
|
|
%b = bitcast <2 x i128> %i to <8 x float>
|
|
%r = extractelement <8 x float> %b, i32 1
|
|
ret float %r
|
|
}
|
|
|
|
define float @bitcasted_inselt_to_FP_uses2(i128 %x) {
|
|
; ANY-LABEL: @bitcasted_inselt_to_FP_uses2(
|
|
; ANY-NEXT: [[I:%.*]] = insertelement <2 x i128> undef, i128 [[X:%.*]], i64 0
|
|
; ANY-NEXT: [[B:%.*]] = bitcast <2 x i128> [[I]] to <8 x float>
|
|
; ANY-NEXT: call void @use_v8f32(<8 x float> [[B]])
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <8 x float> [[B]], i64 1
|
|
; ANY-NEXT: ret float [[R]]
|
|
;
|
|
%i = insertelement <2 x i128> undef, i128 %x, i32 0
|
|
%b = bitcast <2 x i128> %i to <8 x float>
|
|
call void @use_v8f32(<8 x float> %b)
|
|
%r = extractelement <8 x float> %b, i32 1
|
|
ret float %r
|
|
}
|
|
|
|
define i32 @bitcasted_inselt_from_FP(double %x) {
|
|
; LE-LABEL: @bitcasted_inselt_from_FP(
|
|
; LE-NEXT: [[TMP1:%.*]] = bitcast double [[X:%.*]] to i64
|
|
; LE-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 32
|
|
; LE-NEXT: [[R:%.*]] = trunc i64 [[TMP2]] to i32
|
|
; LE-NEXT: ret i32 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcasted_inselt_from_FP(
|
|
; BE-NEXT: [[TMP1:%.*]] = bitcast double [[X:%.*]] to i64
|
|
; BE-NEXT: [[R:%.*]] = trunc i64 [[TMP1]] to i32
|
|
; BE-NEXT: ret i32 [[R]]
|
|
;
|
|
%i = insertelement <2 x double> undef, double %x, i32 0
|
|
%b = bitcast <2 x double> %i to <4 x i32>
|
|
%r = extractelement <4 x i32> %b, i32 1
|
|
ret i32 %r
|
|
}
|
|
|
|
declare void @use_v2f64(<2 x double>)
|
|
declare void @use_v8i16(<8 x i16>)
|
|
|
|
define i16 @bitcasted_inselt_from_FP_uses(double %x) {
|
|
; ANY-LABEL: @bitcasted_inselt_from_FP_uses(
|
|
; ANY-NEXT: [[I:%.*]] = insertelement <2 x double> undef, double [[X:%.*]], i64 0
|
|
; ANY-NEXT: call void @use_v2f64(<2 x double> [[I]])
|
|
; ANY-NEXT: [[B:%.*]] = bitcast <2 x double> [[I]] to <8 x i16>
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <8 x i16> [[B]], i64 1
|
|
; ANY-NEXT: ret i16 [[R]]
|
|
;
|
|
%i = insertelement <2 x double> undef, double %x, i32 0
|
|
call void @use_v2f64(<2 x double> %i)
|
|
%b = bitcast <2 x double> %i to <8 x i16>
|
|
%r = extractelement <8 x i16> %b, i32 1
|
|
ret i16 %r
|
|
}
|
|
|
|
define i16 @bitcasted_inselt_from_FP_uses2(double %x) {
|
|
; ANY-LABEL: @bitcasted_inselt_from_FP_uses2(
|
|
; ANY-NEXT: [[I:%.*]] = insertelement <2 x double> undef, double [[X:%.*]], i64 0
|
|
; ANY-NEXT: [[B:%.*]] = bitcast <2 x double> [[I]] to <8 x i16>
|
|
; ANY-NEXT: call void @use_v8i16(<8 x i16> [[B]])
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <8 x i16> [[B]], i64 1
|
|
; ANY-NEXT: ret i16 [[R]]
|
|
;
|
|
%i = insertelement <2 x double> undef, double %x, i32 0
|
|
%b = bitcast <2 x double> %i to <8 x i16>
|
|
call void @use_v8i16(<8 x i16> %b)
|
|
%r = extractelement <8 x i16> %b, i32 1
|
|
ret i16 %r
|
|
}
|
|
|
|
define float @bitcasted_inselt_to_and_from_FP(double %x) {
|
|
; ANY-LABEL: @bitcasted_inselt_to_and_from_FP(
|
|
; ANY-NEXT: [[I:%.*]] = insertelement <2 x double> undef, double [[X:%.*]], i64 0
|
|
; ANY-NEXT: [[B:%.*]] = bitcast <2 x double> [[I]] to <4 x float>
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <4 x float> [[B]], i64 1
|
|
; ANY-NEXT: ret float [[R]]
|
|
;
|
|
%i = insertelement <2 x double> undef, double %x, i32 0
|
|
%b = bitcast <2 x double> %i to <4 x float>
|
|
%r = extractelement <4 x float> %b, i32 1
|
|
ret float %r
|
|
}
|
|
|
|
define float @bitcasted_inselt_to_and_from_FP_uses(double %x) {
|
|
; ANY-LABEL: @bitcasted_inselt_to_and_from_FP_uses(
|
|
; ANY-NEXT: [[I:%.*]] = insertelement <2 x double> undef, double [[X:%.*]], i64 0
|
|
; ANY-NEXT: call void @use_v2f64(<2 x double> [[I]])
|
|
; ANY-NEXT: [[B:%.*]] = bitcast <2 x double> [[I]] to <4 x float>
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <4 x float> [[B]], i64 1
|
|
; ANY-NEXT: ret float [[R]]
|
|
;
|
|
%i = insertelement <2 x double> undef, double %x, i32 0
|
|
call void @use_v2f64(<2 x double> %i)
|
|
%b = bitcast <2 x double> %i to <4 x float>
|
|
%r = extractelement <4 x float> %b, i32 1
|
|
ret float %r
|
|
}
|
|
|
|
declare void @use_v4f32(<4 x float>)
|
|
|
|
define float @bitcasted_inselt_to_and_from_FP_uses2(double %x) {
|
|
; ANY-LABEL: @bitcasted_inselt_to_and_from_FP_uses2(
|
|
; ANY-NEXT: [[I:%.*]] = insertelement <2 x double> undef, double [[X:%.*]], i64 0
|
|
; ANY-NEXT: [[B:%.*]] = bitcast <2 x double> [[I]] to <4 x float>
|
|
; ANY-NEXT: call void @use_v4f32(<4 x float> [[B]])
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <4 x float> [[B]], i64 1
|
|
; ANY-NEXT: ret float [[R]]
|
|
;
|
|
%i = insertelement <2 x double> undef, double %x, i32 0
|
|
%b = bitcast <2 x double> %i to <4 x float>
|
|
call void @use_v4f32(<4 x float> %b)
|
|
%r = extractelement <4 x float> %b, i32 1
|
|
ret float %r
|
|
}
|
|
|
|
; This would crash/assert because the logic for collectShuffleElements()
|
|
; does not consider the possibility of invalid insert/extract operands.
|
|
|
|
define <4 x double> @invalid_extractelement(<2 x double> %a, <4 x double> %b, double* %p) {
|
|
; ANY-LABEL: @invalid_extractelement(
|
|
; ANY-NEXT: [[TMP1:%.*]] = shufflevector <2 x double> [[A:%.*]], <2 x double> poison, <4 x i32> <i32 0, i32 undef, i32 undef, i32 undef>
|
|
; ANY-NEXT: [[T4:%.*]] = shufflevector <4 x double> [[B:%.*]], <4 x double> [[TMP1]], <4 x i32> <i32 undef, i32 1, i32 4, i32 3>
|
|
; ANY-NEXT: [[E:%.*]] = extractelement <4 x double> [[B]], i64 1
|
|
; ANY-NEXT: store double [[E]], double* [[P:%.*]], align 8
|
|
; ANY-NEXT: ret <4 x double> [[T4]]
|
|
;
|
|
%t3 = extractelement <2 x double> %a, i32 0
|
|
%t4 = insertelement <4 x double> %b, double %t3, i32 2
|
|
%e = extractelement <4 x double> %t4, i32 1
|
|
store double %e, double* %p
|
|
%e1 = extractelement <2 x double> %a, i32 4 ; invalid index
|
|
%r = insertelement <4 x double> %t4, double %e1, i64 0
|
|
ret <4 x double> %r
|
|
}
|
|
|
|
; i32 is a desirable/supported type independent of data layout.
|
|
|
|
define i8 @bitcast_scalar_supported_type_index0(i32 %x) {
|
|
; LE-LABEL: @bitcast_scalar_supported_type_index0(
|
|
; LE-NEXT: [[R:%.*]] = trunc i32 [[X:%.*]] to i8
|
|
; LE-NEXT: ret i8 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcast_scalar_supported_type_index0(
|
|
; BE-NEXT: [[EXTELT_OFFSET:%.*]] = lshr i32 [[X:%.*]], 24
|
|
; BE-NEXT: [[R:%.*]] = trunc i32 [[EXTELT_OFFSET]] to i8
|
|
; BE-NEXT: ret i8 [[R]]
|
|
;
|
|
%v = bitcast i32 %x to <4 x i8>
|
|
%r = extractelement <4 x i8> %v, i8 0
|
|
ret i8 %r
|
|
}
|
|
|
|
define i8 @bitcast_scalar_supported_type_index2(i32 %x) {
|
|
; LE-LABEL: @bitcast_scalar_supported_type_index2(
|
|
; LE-NEXT: [[EXTELT_OFFSET:%.*]] = lshr i32 [[X:%.*]], 16
|
|
; LE-NEXT: [[R:%.*]] = trunc i32 [[EXTELT_OFFSET]] to i8
|
|
; LE-NEXT: ret i8 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcast_scalar_supported_type_index2(
|
|
; BE-NEXT: [[EXTELT_OFFSET:%.*]] = lshr i32 [[X:%.*]], 8
|
|
; BE-NEXT: [[R:%.*]] = trunc i32 [[EXTELT_OFFSET]] to i8
|
|
; BE-NEXT: ret i8 [[R]]
|
|
;
|
|
%v = bitcast i32 %x to <4 x i8>
|
|
%r = extractelement <4 x i8> %v, i64 2
|
|
ret i8 %r
|
|
}
|
|
|
|
; i64 is legal based on data layout.
|
|
|
|
define i4 @bitcast_scalar_legal_type_index3(i64 %x) {
|
|
; LE-LABEL: @bitcast_scalar_legal_type_index3(
|
|
; LE-NEXT: [[EXTELT_OFFSET:%.*]] = lshr i64 [[X:%.*]], 12
|
|
; LE-NEXT: [[R:%.*]] = trunc i64 [[EXTELT_OFFSET]] to i4
|
|
; LE-NEXT: ret i4 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcast_scalar_legal_type_index3(
|
|
; BE-NEXT: [[EXTELT_OFFSET:%.*]] = lshr i64 [[X:%.*]], 48
|
|
; BE-NEXT: [[R:%.*]] = trunc i64 [[EXTELT_OFFSET]] to i4
|
|
; BE-NEXT: ret i4 [[R]]
|
|
;
|
|
%v = bitcast i64 %x to <16 x i4>
|
|
%r = extractelement <16 x i4> %v, i64 3
|
|
ret i4 %r
|
|
}
|
|
|
|
; negative test - don't create a shift for an illegal type.
|
|
|
|
define i8 @bitcast_scalar_illegal_type_index1(i128 %x) {
|
|
; ANY-LABEL: @bitcast_scalar_illegal_type_index1(
|
|
; ANY-NEXT: [[V:%.*]] = bitcast i128 [[X:%.*]] to <16 x i8>
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <16 x i8> [[V]], i64 1
|
|
; ANY-NEXT: ret i8 [[R]]
|
|
;
|
|
%v = bitcast i128 %x to <16 x i8>
|
|
%r = extractelement <16 x i8> %v, i64 1
|
|
ret i8 %r
|
|
}
|
|
|
|
; negative test - can't use shift/trunc on FP
|
|
|
|
define i8 @bitcast_fp_index0(float %x) {
|
|
; ANY-LABEL: @bitcast_fp_index0(
|
|
; ANY-NEXT: [[V:%.*]] = bitcast float [[X:%.*]] to <4 x i8>
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <4 x i8> [[V]], i64 0
|
|
; ANY-NEXT: ret i8 [[R]]
|
|
;
|
|
%v = bitcast float %x to <4 x i8>
|
|
%r = extractelement <4 x i8> %v, i8 0
|
|
ret i8 %r
|
|
}
|
|
|
|
; negative test - can't have FP dest type without a cast
|
|
|
|
define half @bitcast_fpvec_index0(i32 %x) {
|
|
; ANY-LABEL: @bitcast_fpvec_index0(
|
|
; ANY-NEXT: [[V:%.*]] = bitcast i32 [[X:%.*]] to <2 x half>
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <2 x half> [[V]], i64 0
|
|
; ANY-NEXT: ret half [[R]]
|
|
;
|
|
%v = bitcast i32 %x to <2 x half>
|
|
%r = extractelement <2 x half> %v, i8 0
|
|
ret half %r
|
|
}
|
|
|
|
; negative test - need constant index
|
|
|
|
define i8 @bitcast_scalar_index_variable(i32 %x, i64 %y) {
|
|
; ANY-LABEL: @bitcast_scalar_index_variable(
|
|
; ANY-NEXT: [[V:%.*]] = bitcast i32 [[X:%.*]] to <4 x i8>
|
|
; ANY-NEXT: [[R:%.*]] = extractelement <4 x i8> [[V]], i64 [[Y:%.*]]
|
|
; ANY-NEXT: ret i8 [[R]]
|
|
;
|
|
%v = bitcast i32 %x to <4 x i8>
|
|
%r = extractelement <4 x i8> %v, i64 %y
|
|
ret i8 %r
|
|
}
|
|
|
|
; extra use is ok if we don't need a shift
|
|
|
|
define i8 @bitcast_scalar_index0_use(i64 %x) {
|
|
; LE-LABEL: @bitcast_scalar_index0_use(
|
|
; LE-NEXT: [[V:%.*]] = bitcast i64 [[X:%.*]] to <8 x i8>
|
|
; LE-NEXT: call void @use(<8 x i8> [[V]])
|
|
; LE-NEXT: [[R:%.*]] = trunc i64 [[X]] to i8
|
|
; LE-NEXT: ret i8 [[R]]
|
|
;
|
|
; BE-LABEL: @bitcast_scalar_index0_use(
|
|
; BE-NEXT: [[V:%.*]] = bitcast i64 [[X:%.*]] to <8 x i8>
|
|
; BE-NEXT: call void @use(<8 x i8> [[V]])
|
|
; BE-NEXT: [[R:%.*]] = extractelement <8 x i8> [[V]], i64 0
|
|
; BE-NEXT: ret i8 [[R]]
|
|
;
|
|
%v = bitcast i64 %x to <8 x i8>
|
|
call void @use(<8 x i8> %v)
|
|
%r = extractelement <8 x i8> %v, i64 0
|
|
ret i8 %r
|
|
}
|