b0bfbad19b
We can always use FMOVH0 to lower fp16 zero, even without fullfp16. We can either expand it to movi d0, #0 or fmov s0, wzr, which will both clear all the bits of the register. Differential Revision: https://reviews.llvm.org/D143988
13 lines
449 B
LLVM
13 lines
449 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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;; -mattr=+all is not intended to be used for code emitters. Nevertheless,
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;; llc does not reject it. This test intends to catch behavior changes.
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; RUN: llc -mtriple=aarch64 -mattr=+all < %s | FileCheck %s
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define half @bf16() nounwind {
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; CHECK-LABEL: bf16:
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; CHECK: // %bb.0:
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; CHECK-NEXT: movi d0, #0000000000000000
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; CHECK-NEXT: ret
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ret half 0xH0000
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}
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