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59 lines
1.6 KiB
LLVM
59 lines
1.6 KiB
LLVM
; RUN: llc < %s -march=x86-64 -mcpu=knl | FileCheck %s
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define i16 @mask16(i16 %x) {
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%m0 = bitcast i16 %x to <16 x i1>
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%m1 = xor <16 x i1> %m0, <i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1>
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%ret = bitcast <16 x i1> %m1 to i16
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ret i16 %ret
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; CHECK: mask16
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; CHECK: knotw
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; CHECK: ret
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}
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define i8 @mask8(i8 %x) {
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%m0 = bitcast i8 %x to <8 x i1>
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%m1 = xor <8 x i1> %m0, <i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1>
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%ret = bitcast <8 x i1> %m1 to i8
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ret i8 %ret
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; CHECK: mask8
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; CHECK: knotw
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; CHECK: ret
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}
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define i16 @mand16(i16 %x, i16 %y) {
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%ma = bitcast i16 %x to <16 x i1>
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%mb = bitcast i16 %y to <16 x i1>
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%mc = and <16 x i1> %ma, %mb
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%md = xor <16 x i1> %ma, %mb
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%me = or <16 x i1> %mc, %md
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%ret = bitcast <16 x i1> %me to i16
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; CHECK: kxorw
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; CHECK: kandw
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; CHECK: korw
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ret i16 %ret
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}
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; CHECK: unpckbw_test
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; CHECK: kunpckbw
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; CHECK:ret
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declare <16 x i1> @llvm.x86.kunpck.v16i1(<8 x i1>, <8 x i1>) nounwind readnone
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define i16 @unpckbw_test(i8 %x, i8 %y) {
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%m0 = bitcast i8 %x to <8 x i1>
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%m1 = bitcast i8 %y to <8 x i1>
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%k = tail call <16 x i1> @llvm.x86.kunpck.v16i1(<8 x i1> %m0, <8 x i1> %m1)
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%r = bitcast <16 x i1> %k to i16
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ret i16 %r
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}
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; CHECK: shuf_test1
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; CHECK: kshiftrw $8
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; CHECK:ret
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define i8 @shuf_test1(i16 %v) nounwind {
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%v1 = bitcast i16 %v to <16 x i1>
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%mask = shufflevector <16 x i1> %v1, <16 x i1> undef, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
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%mask1 = bitcast <8 x i1> %mask to i8
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ret i8 %mask1
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}
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