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llvm-project/llvm/test/CodeGen/AArch64/vcvt-oversize.ll

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[SDAG] Move TRUNCATE splitting logic into a helper, and use it more liberally. SplitVecOp_TRUNCATE has logic for recursively splitting oversize vectors that need more than one round of splitting to become legal. There are many other ISD nodes that could benefit from this logic, so factor it out and use it for FP_TO_UINT,FP_TO_SINT,SINT_TO_FP,UINT_TO_FP and FTRUNC. llvm-svn: 233681
2015-03-31 18:20:58 +08:00
; RUN: llc -mtriple=aarch64 < %s | FileCheck %s
define <8 x i8> @float_to_i8(<8 x float>* %in) {
; CHECK-LABEL: float_to_i8:
; CHECK-DAG: fadd v[[LSB:[0-9]+]].4s, v0.4s, v0.4s
; CHECK-DAG: fadd v[[MSB:[0-9]+]].4s, v1.4s, v1.4s
; CHECK-DAG: fcvtzu v[[LSB2:[0-9]+]].4s, v[[LSB]].4s
; CHECK-DAG: fcvtzu v[[MSB2:[0-9]+]].4s, v[[MSB]].4s
; CHECK-DAG: xtn v[[TMP:[0-9]+]].4h, v[[LSB]].4s
; CHECK-DAG: xtn2 v[[TMP]].8h, v[[MSB]].4s
; CHECK-DAG: xtn v0.8b, v[[TMP]].8h
%l = load <8 x float>, <8 x float>* %in
%scale = fmul <8 x float> %l, <float 2.0, float 2.0, float 2.0, float 2.0, float 2.0, float 2.0, float 2.0, float 2.0>
%conv = fptoui <8 x float> %scale to <8 x i8>
ret <8 x i8> %conv
}