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[AARCH64] Added test case for PR40091 

llvm-svn: 349543
This commit is contained in:
Simon Pilgrim 2018-12-18 21:05:22 +00:00
parent 77dfca88b2
commit 73c8685295
1 changed files with 22 additions and 0 deletions
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llvm/test/CodeGen/AArch64/pr40091.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=aarch64-arm-none-eabi | FileCheck %s
define i64 @test(i64 %aa) {
; CHECK-LABEL: test:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: movi v0.2d, #0xffffffffffffffff
; CHECK-NEXT: fmov x0, d0
; CHECK-NEXT: ret
entry:
%a = bitcast i64 %aa to <1 x i64>
%k = icmp sgt <1 x i64> %a, zeroinitializer
%l = zext <1 x i1> %k to <1 x i64>
%o = and <1 x i64> %l, %a
%p = xor <1 x i64> %l, <i64 -1>
%q = and <1 x i64> %p, <i64 81985529216486895>
%r = or <1 x i64> %q, %o
%s = bitcast <1 x i64> %r to <8 x i8>
%t = shufflevector <8 x i8> %s, <8 x i8> %s, <8 x i32> <i32 3, i32 3, i32 3, i32 3, i32 3, i32 3, i32 3, i32 3>
%u = bitcast <8 x i8> %t to i64
ret i64 %u
}