44 lines
1.8 KiB
LLVM
44 lines
1.8 KiB
LLVM
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; RUN: llc -mtriple=aarch64-linux-gnu -o - %s | FileCheck %s
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define i64 @dotests_616() {
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; CHECK-LABEL: dotests_616
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; CHECK: mov x0, xzr
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; CHECK-NEXT: ret
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entry:
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%0 = bitcast <2 x i64> zeroinitializer to <8 x i16>
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%1 = and <8 x i16> zeroinitializer, %0
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%2 = icmp ne <8 x i16> %1, zeroinitializer
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%3 = extractelement <8 x i1> %2, i32 2
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%vgetq_lane285 = sext i1 %3 to i16
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%vset_lane = insertelement <4 x i16> undef, i16 %vgetq_lane285, i32 0
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%4 = bitcast <4 x i16> %vset_lane to <1 x i64>
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%vget_lane = extractelement <1 x i64> %4, i32 0
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ret i64 %vget_lane
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}
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; PR25763 - folding constant vector comparisons with sign-extended result
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define <8 x i16> @dotests_458() {
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; CHECK-LABEL: .LCPI1_0:
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; CHECK: .hword 0 // 0x0
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; CHECK-NEXT: .hword 0 // 0x0
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; CHECK-NEXT: .hword 65535 // 0xffff
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; CHECK-NEXT: .hword 0 // 0x0
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; CHECK-NEXT: .hword 0 // 0x0
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; CHECK-NEXT: .hword 0 // 0x0
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; CHECK-NEXT: .hword 0 // 0x0
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; CHECK-NEXT: .hword 0 // 0x0
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; CHECK-LABEL: dotests_458
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; CHECK: adrp x8, .LCPI1_0
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; CHECK-NEXT: ldr q0, [x8, :lo12:.LCPI1_0]
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; CHECK-NEXT: ret
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entry:
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%vclz_v.i = call <8 x i8> @llvm.ctlz.v8i8(<8 x i8> <i8 127, i8 38, i8 -1, i8 -128, i8 127, i8 0, i8 0, i8 0>, i1 false) #6
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%vsra_n = lshr <8 x i8> %vclz_v.i, <i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5>
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%name_6 = or <8 x i8> %vsra_n, <i8 127, i8 -128, i8 -1, i8 67, i8 84, i8 127, i8 -1, i8 0>
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%cmp.i603 = icmp slt <8 x i8> %name_6, <i8 -57, i8 -128, i8 127, i8 -128, i8 -1, i8 0, i8 -1, i8 -1>
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%vmovl.i4.i = sext <8 x i1> %cmp.i603 to <8 x i16>
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ret <8 x i16> %vmovl.i4.i
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}
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declare <8 x i8> @llvm.ctlz.v8i8(<8 x i8>, i1)
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