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https://github.com/c64scene-ar/llvm-6502.git
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c7bcb37fd3
Fix for test case found by James Molloy - TRUNCATE of constant build vectors can be more simply achieved by simply replacing with a new build vector node with the truncated value type - no need to touch the scalar operands at all. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235079 91177308-0d34-0410-b5e6-96231b3b80d8
22 lines
718 B
LLVM
22 lines
718 B
LLVM
; 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: movi d0, #0000000000000000
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; CHECK-NEXT: umov w8, v0.b[2]
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; CHECK-NEXT: sbfx w8, w8, #0, #1
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; CHECK-NEXT: fmov s0, w8
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; CHECK-NEXT: fmov x0, d0
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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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