derek.holloway
7502bf64a4
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80 lines
2.9 KiB
LLVM
80 lines
2.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc --mtriple=loongarch32 --mattr=+f,-d,-frecipe < %s | FileCheck %s --check-prefix=LA32F
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; RUN: llc --mtriple=loongarch32 --mattr=+f,-d,+frecipe < %s | FileCheck %s --check-prefix=LA32F-FRECIPE
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; RUN: llc --mtriple=loongarch64 --mattr=+d,-frecipe < %s | FileCheck %s --check-prefix=LA64D
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; RUN: llc --mtriple=loongarch64 --mattr=+d,+frecipe < %s | FileCheck %s --check-prefix=LA64D-FRECIPE
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;; Exercise the 'fdiv' LLVM IR: https://llvm.org/docs/LangRef.html#fdiv-instruction
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define float @fdiv_s(float %x, float %y) {
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; LA32F-LABEL: fdiv_s:
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; LA32F: # %bb.0:
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; LA32F-NEXT: fdiv.s $fa0, $fa0, $fa1
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; LA32F-NEXT: ret
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;
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; LA32F-FRECIPE-LABEL: fdiv_s:
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; LA32F-FRECIPE: # %bb.0:
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; LA32F-FRECIPE-NEXT: frecipe.s $fa2, $fa1
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; LA32F-FRECIPE-NEXT: fmul.s $fa3, $fa0, $fa2
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; LA32F-FRECIPE-NEXT: fnmsub.s $fa0, $fa1, $fa3, $fa0
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; LA32F-FRECIPE-NEXT: fmadd.s $fa0, $fa2, $fa0, $fa3
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; LA32F-FRECIPE-NEXT: ret
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;
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; LA64D-LABEL: fdiv_s:
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; LA64D: # %bb.0:
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; LA64D-NEXT: fdiv.s $fa0, $fa0, $fa1
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; LA64D-NEXT: ret
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;
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; LA64D-FRECIPE-LABEL: fdiv_s:
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; LA64D-FRECIPE: # %bb.0:
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; LA64D-FRECIPE-NEXT: frecipe.s $fa2, $fa1
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; LA64D-FRECIPE-NEXT: fmul.s $fa3, $fa0, $fa2
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; LA64D-FRECIPE-NEXT: fnmsub.s $fa0, $fa1, $fa3, $fa0
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; LA64D-FRECIPE-NEXT: fmadd.s $fa0, $fa2, $fa0, $fa3
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; LA64D-FRECIPE-NEXT: ret
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%div = fdiv fast float %x, %y
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ret float %div
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}
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define double @fdiv_d(double %x, double %y) {
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; LA32F-LABEL: fdiv_d:
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; LA32F: # %bb.0:
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; LA32F-NEXT: addi.w $sp, $sp, -16
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; LA32F-NEXT: .cfi_def_cfa_offset 16
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; LA32F-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
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; LA32F-NEXT: .cfi_offset 1, -4
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; LA32F-NEXT: bl __divdf3
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; LA32F-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
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; LA32F-NEXT: addi.w $sp, $sp, 16
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; LA32F-NEXT: ret
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;
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; LA32F-FRECIPE-LABEL: fdiv_d:
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; LA32F-FRECIPE: # %bb.0:
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; LA32F-FRECIPE-NEXT: addi.w $sp, $sp, -16
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; LA32F-FRECIPE-NEXT: .cfi_def_cfa_offset 16
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; LA32F-FRECIPE-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
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; LA32F-FRECIPE-NEXT: .cfi_offset 1, -4
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; LA32F-FRECIPE-NEXT: bl __divdf3
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; LA32F-FRECIPE-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
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; LA32F-FRECIPE-NEXT: addi.w $sp, $sp, 16
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; LA32F-FRECIPE-NEXT: ret
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;
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; LA64D-LABEL: fdiv_d:
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; LA64D: # %bb.0:
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; LA64D-NEXT: fdiv.d $fa0, $fa0, $fa1
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; LA64D-NEXT: ret
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;
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; LA64D-FRECIPE-LABEL: fdiv_d:
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; LA64D-FRECIPE: # %bb.0:
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; LA64D-FRECIPE-NEXT: frecipe.d $fa2, $fa1
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; LA64D-FRECIPE-NEXT: vldi $vr3, -784
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; LA64D-FRECIPE-NEXT: fmadd.d $fa3, $fa1, $fa2, $fa3
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; LA64D-FRECIPE-NEXT: fnmsub.d $fa2, $fa3, $fa2, $fa2
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; LA64D-FRECIPE-NEXT: fmul.d $fa3, $fa0, $fa2
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; LA64D-FRECIPE-NEXT: fnmsub.d $fa0, $fa1, $fa3, $fa0
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; LA64D-FRECIPE-NEXT: fmadd.d $fa0, $fa2, $fa0, $fa3
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; LA64D-FRECIPE-NEXT: ret
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%div = fdiv fast double %x, %y
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ret double %div
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}
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