derek.holloway
7502bf64a4
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124 lines
4.8 KiB
LLVM
124 lines
4.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S -data-layout="e" | FileCheck %s --check-prefixes=ANY,LE
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; RUN: opt < %s -passes=instcombine -S -data-layout="E" | FileCheck %s --check-prefixes=ANY,BE
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define <4 x i16> @trunc_little_endian(<4 x i32> %x) {
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; LE-LABEL: @trunc_little_endian(
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; LE-NEXT: [[R:%.*]] = trunc <4 x i32> [[X:%.*]] to <4 x i16>
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; LE-NEXT: ret <4 x i16> [[R]]
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;
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; BE-LABEL: @trunc_little_endian(
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; BE-NEXT: [[B:%.*]] = bitcast <4 x i32> [[X:%.*]] to <8 x i16>
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; BE-NEXT: [[R:%.*]] = shufflevector <8 x i16> [[B]], <8 x i16> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
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; BE-NEXT: ret <4 x i16> [[R]]
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;
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%b = bitcast <4 x i32> %x to <8 x i16>
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%r = shufflevector <8 x i16> %b, <8 x i16> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
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ret <4 x i16> %r
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}
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define <4 x i16> @trunc_big_endian(<4 x i32> %x) {
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; LE-LABEL: @trunc_big_endian(
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; LE-NEXT: [[B:%.*]] = bitcast <4 x i32> [[X:%.*]] to <8 x i16>
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; LE-NEXT: [[R:%.*]] = shufflevector <8 x i16> [[B]], <8 x i16> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
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; LE-NEXT: ret <4 x i16> [[R]]
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;
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; BE-LABEL: @trunc_big_endian(
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; BE-NEXT: [[R:%.*]] = trunc <4 x i32> [[X:%.*]] to <4 x i16>
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; BE-NEXT: ret <4 x i16> [[R]]
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;
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%b = bitcast <4 x i32> %x to <8 x i16>
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%r = shufflevector <8 x i16> %b, <8 x i16> undef, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
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ret <4 x i16> %r
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}
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declare void @use_v8i16(<8 x i16>)
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; Extra use is ok.
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define <2 x i16> @trunc_little_endian_extra_use(<2 x i64> %x) {
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; LE-LABEL: @trunc_little_endian_extra_use(
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; LE-NEXT: [[B:%.*]] = bitcast <2 x i64> [[X:%.*]] to <8 x i16>
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; LE-NEXT: call void @use_v8i16(<8 x i16> [[B]])
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; LE-NEXT: [[R:%.*]] = trunc <2 x i64> [[X]] to <2 x i16>
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; LE-NEXT: ret <2 x i16> [[R]]
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;
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; BE-LABEL: @trunc_little_endian_extra_use(
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; BE-NEXT: [[B:%.*]] = bitcast <2 x i64> [[X:%.*]] to <8 x i16>
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; BE-NEXT: call void @use_v8i16(<8 x i16> [[B]])
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; BE-NEXT: [[R:%.*]] = shufflevector <8 x i16> [[B]], <8 x i16> poison, <2 x i32> <i32 0, i32 4>
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; BE-NEXT: ret <2 x i16> [[R]]
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;
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%b = bitcast <2 x i64> %x to <8 x i16>
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call void @use_v8i16(<8 x i16> %b)
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%r = shufflevector <8 x i16> %b, <8 x i16> undef, <2 x i32> <i32 0, i32 4>
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ret <2 x i16> %r
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}
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declare void @use_v12i11(<12 x i11>)
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; Weird types are ok.
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define <4 x i11> @trunc_big_endian_extra_use(<4 x i33> %x) {
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; LE-LABEL: @trunc_big_endian_extra_use(
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; LE-NEXT: [[B:%.*]] = bitcast <4 x i33> [[X:%.*]] to <12 x i11>
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; LE-NEXT: call void @use_v12i11(<12 x i11> [[B]])
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; LE-NEXT: [[R:%.*]] = shufflevector <12 x i11> [[B]], <12 x i11> poison, <4 x i32> <i32 2, i32 5, i32 8, i32 11>
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; LE-NEXT: ret <4 x i11> [[R]]
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;
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; BE-LABEL: @trunc_big_endian_extra_use(
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; BE-NEXT: [[B:%.*]] = bitcast <4 x i33> [[X:%.*]] to <12 x i11>
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; BE-NEXT: call void @use_v12i11(<12 x i11> [[B]])
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; BE-NEXT: [[R:%.*]] = trunc <4 x i33> [[X]] to <4 x i11>
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; BE-NEXT: ret <4 x i11> [[R]]
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;
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%b = bitcast <4 x i33> %x to <12 x i11>
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call void @use_v12i11(<12 x i11> %b)
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%r = shufflevector <12 x i11> %b, <12 x i11> undef, <4 x i32> <i32 2, i32 5, i32 8, i32 11>
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ret <4 x i11> %r
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}
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define <4 x i16> @wrong_cast1(i128 %x) {
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; ANY-LABEL: @wrong_cast1(
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; ANY-NEXT: [[B:%.*]] = bitcast i128 [[X:%.*]] to <8 x i16>
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; ANY-NEXT: [[R:%.*]] = shufflevector <8 x i16> [[B]], <8 x i16> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
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; ANY-NEXT: ret <4 x i16> [[R]]
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;
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%b = bitcast i128 %x to <8 x i16>
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%r = shufflevector <8 x i16> %b, <8 x i16> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
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ret <4 x i16> %r
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}
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define <4 x i16> @wrong_cast2(<4 x float> %x) {
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; ANY-LABEL: @wrong_cast2(
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; ANY-NEXT: [[B:%.*]] = bitcast <4 x float> [[X:%.*]] to <8 x i16>
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; ANY-NEXT: [[R:%.*]] = shufflevector <8 x i16> [[B]], <8 x i16> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
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; ANY-NEXT: ret <4 x i16> [[R]]
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;
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%b = bitcast <4 x float> %x to <8 x i16>
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%r = shufflevector <8 x i16> %b, <8 x i16> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
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ret <4 x i16> %r
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}
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define <4 x half> @wrong_cast3(<4 x i32> %x) {
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; ANY-LABEL: @wrong_cast3(
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; ANY-NEXT: [[B:%.*]] = bitcast <4 x i32> [[X:%.*]] to <8 x half>
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; ANY-NEXT: [[R:%.*]] = shufflevector <8 x half> [[B]], <8 x half> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
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; ANY-NEXT: ret <4 x half> [[R]]
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;
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%b = bitcast <4 x i32> %x to <8 x half>
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%r = shufflevector <8 x half> %b, <8 x half> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
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ret <4 x half> %r
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}
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define <2 x i16> @wrong_shuffle(<4 x i32> %x) {
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; ANY-LABEL: @wrong_shuffle(
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; ANY-NEXT: [[B:%.*]] = bitcast <4 x i32> [[X:%.*]] to <8 x i16>
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; ANY-NEXT: [[R:%.*]] = shufflevector <8 x i16> [[B]], <8 x i16> poison, <2 x i32> <i32 0, i32 2>
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; ANY-NEXT: ret <2 x i16> [[R]]
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;
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%b = bitcast <4 x i32> %x to <8 x i16>
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%r = shufflevector <8 x i16> %b, <8 x i16> undef, <2 x i32> <i32 0, i32 2>
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ret <2 x i16> %r
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}
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