llvm-project/llvm/test/CodeGen/AArch64/fold-constants.ll

22 lines
718 B
LLVM

; RUN: llc -mtriple=aarch64-linux-gnu -o - %s | FileCheck %s
define i64 @dotests_616() {
; CHECK-LABEL: dotests_616
; CHECK: movi d0, #0000000000000000
; CHECK-NEXT: umov w8, v0.b[2]
; CHECK-NEXT: sbfx w8, w8, #0, #1
; CHECK-NEXT: fmov s0, w8
; CHECK-NEXT: fmov x0, d0
; CHECK-NEXT: ret
entry:
%0 = bitcast <2 x i64> zeroinitializer to <8 x i16>
%1 = and <8 x i16> zeroinitializer, %0
%2 = icmp ne <8 x i16> %1, zeroinitializer
%3 = extractelement <8 x i1> %2, i32 2
%vgetq_lane285 = sext i1 %3 to i16
%vset_lane = insertelement <4 x i16> undef, i16 %vgetq_lane285, i32 0
%4 = bitcast <4 x i16> %vset_lane to <1 x i64>
%vget_lane = extractelement <1 x i64> %4, i32 0
ret i64 %vget_lane
}