Files
clang-p2996/llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/fsqrt_vec.ll
Petar Avramovic 417dd67825 [MIPS GlobalISel] Select MSA vector generic and builtin fsqrt
selectImpl is able to select G_FSQRT when we set bank for vector
operands to fprb. Add detailed tests.
Note: G_FSQRT is generated from llvm-ir intrinsics llvm.sqrt.*,
and at the moment MIPS is not able to generate this intrinsic for
vector type (some targets generate vector llvm.sqrt.* from calls
to a builtin function).
__builtin_msa_fsqrt_<format> will be transformed into G_FSQRT
in legalizeIntrinsic and selected in the same way.

Differential Revision: https://reviews.llvm.org/D69376
2019-10-25 14:45:14 +02:00

35 lines
1.2 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -O0 -mtriple=mipsel-linux-gnu -global-isel -mcpu=mips32r5 -mattr=+msa,+fp64,+nan2008 -verify-machineinstrs %s -o -| FileCheck %s -check-prefixes=P5600
declare <4 x float> @llvm.sqrt.v4f32(<4 x float> %Val)
define void @sqrt_v4f32(<4 x float>* %a, <4 x float>* %c) {
; P5600-LABEL: sqrt_v4f32:
; P5600: # %bb.0: # %entry
; P5600-NEXT: ld.w $w0, 0($4)
; P5600-NEXT: fsqrt.w $w0, $w0
; P5600-NEXT: st.w $w0, 0($5)
; P5600-NEXT: jr $ra
; P5600-NEXT: nop
entry:
%0 = load <4 x float>, <4 x float>* %a, align 16
%sqrt = call <4 x float> @llvm.sqrt.v4f32 (<4 x float> %0)
store <4 x float> %sqrt, <4 x float>* %c, align 16
ret void
}
declare <2 x double> @llvm.sqrt.v2f64(<2 x double> %Val)
define void @sqrt_v2f64(<2 x double>* %a, <2 x double>* %c) {
; P5600-LABEL: sqrt_v2f64:
; P5600: # %bb.0: # %entry
; P5600-NEXT: ld.d $w0, 0($4)
; P5600-NEXT: fsqrt.d $w0, $w0
; P5600-NEXT: st.d $w0, 0($5)
; P5600-NEXT: jr $ra
; P5600-NEXT: nop
entry:
%0 = load <2 x double>, <2 x double>* %a, align 16
%sqrt = call <2 x double> @llvm.sqrt.v2f64 (<2 x double> %0)
store <2 x double> %sqrt, <2 x double>* %c, align 16
ret void
}