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[RISCV] Promote fldexp with Zfh. #117396

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[RISCV] Promote fldexp with Zfh. #117396

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2 changes: 1 addition & 1 deletion llvm/lib/Target/RISCV/RISCVISelLowering.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -498,7 +498,7 @@ RISCVTargetLowering::RISCVTargetLowering(const TargetMachine &TM,
setOperationAction({ISD::FREM, ISD::FPOW, ISD::FPOWI,
ISD::FCOS, ISD::FSIN, ISD::FSINCOS, ISD::FEXP,
ISD::FEXP2, ISD::FEXP10, ISD::FLOG, ISD::FLOG2,
ISD::FLOG10},
ISD::FLOG10, ISD::FLDEXP},
MVT::f16, Promote);

// FIXME: Need to promote f16 STRICT_* to f32 libcalls, but we don't have
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53 changes: 53 additions & 0 deletions llvm/test/CodeGen/RISCV/double-intrinsics.ll
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Expand Up @@ -1637,3 +1637,56 @@ define double @minimumnum_double(double %x, double %y) {
%z = call double @llvm.minimumnum.f64(double %x, double %y)
ret double %z
}

define double @ldexp_double(double %x, i32 signext %y) nounwind {
; RV32IFD-LABEL: ldexp_double:
; RV32IFD: # %bb.0:
; RV32IFD-NEXT: tail ldexp
;
; RV64IFD-LABEL: ldexp_double:
; RV64IFD: # %bb.0:
; RV64IFD-NEXT: addi sp, sp, -16
; RV64IFD-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64IFD-NEXT: call ldexp
; RV64IFD-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64IFD-NEXT: addi sp, sp, 16
; RV64IFD-NEXT: ret
;
; RV32IZFINXZDINX-LABEL: ldexp_double:
; RV32IZFINXZDINX: # %bb.0:
; RV32IZFINXZDINX-NEXT: addi sp, sp, -16
; RV32IZFINXZDINX-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32IZFINXZDINX-NEXT: call ldexp
; RV32IZFINXZDINX-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32IZFINXZDINX-NEXT: addi sp, sp, 16
; RV32IZFINXZDINX-NEXT: ret
;
; RV64IZFINXZDINX-LABEL: ldexp_double:
; RV64IZFINXZDINX: # %bb.0:
; RV64IZFINXZDINX-NEXT: addi sp, sp, -16
; RV64IZFINXZDINX-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64IZFINXZDINX-NEXT: call ldexp
; RV64IZFINXZDINX-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64IZFINXZDINX-NEXT: addi sp, sp, 16
; RV64IZFINXZDINX-NEXT: ret
;
; RV32I-LABEL: ldexp_double:
; RV32I: # %bb.0:
; RV32I-NEXT: addi sp, sp, -16
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT: call ldexp
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT: addi sp, sp, 16
; RV32I-NEXT: ret
;
; RV64I-LABEL: ldexp_double:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: call ldexp
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
%z = call double @llvm.ldexp.f64.i32(double %x, i32 %y)
ret double %z
}
48 changes: 48 additions & 0 deletions llvm/test/CodeGen/RISCV/float-intrinsics.ll
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Expand Up @@ -2242,3 +2242,51 @@ define float @minimumnum_float(float %x, float %y) {
%z = call float @llvm.minimumnum.f32(float %x, float %y)
ret float %z
}

define float @ldexp_float(float %x, i32 signext %y) nounwind {
; RV32IF-LABEL: ldexp_float:
; RV32IF: # %bb.0:
; RV32IF-NEXT: tail ldexpf
;
; RV32IZFINX-LABEL: ldexp_float:
; RV32IZFINX: # %bb.0:
; RV32IZFINX-NEXT: tail ldexpf
;
; RV64IF-LABEL: ldexp_float:
; RV64IF: # %bb.0:
; RV64IF-NEXT: addi sp, sp, -16
; RV64IF-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64IF-NEXT: call ldexpf
; RV64IF-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64IF-NEXT: addi sp, sp, 16
; RV64IF-NEXT: ret
;
; RV64IZFINX-LABEL: ldexp_float:
; RV64IZFINX: # %bb.0:
; RV64IZFINX-NEXT: addi sp, sp, -16
; RV64IZFINX-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64IZFINX-NEXT: call ldexpf
; RV64IZFINX-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64IZFINX-NEXT: addi sp, sp, 16
; RV64IZFINX-NEXT: ret
;
; RV32I-LABEL: ldexp_float:
; RV32I: # %bb.0:
; RV32I-NEXT: addi sp, sp, -16
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT: call ldexpf
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT: addi sp, sp, 16
; RV32I-NEXT: ret
;
; RV64I-LABEL: ldexp_float:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: call ldexpf
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
%z = call float @llvm.ldexp.f32.i32(float %x, i32 %y)
ret float %z
}
126 changes: 126 additions & 0 deletions llvm/test/CodeGen/RISCV/half-intrinsics.ll
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Expand Up @@ -3186,3 +3186,129 @@ define half @minimumnum_half(half %x, half %y) {
%z = call half @llvm.minimumnum.f16(half %x, half %y)
ret half %z
}

define half @ldexp_half(half %x, i32 signext %y) nounwind {
; RV32IZFH-LABEL: ldexp_half:
; RV32IZFH: # %bb.0:
; RV32IZFH-NEXT: addi sp, sp, -16
; RV32IZFH-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32IZFH-NEXT: fcvt.s.h fa0, fa0
; RV32IZFH-NEXT: call ldexpf
; RV32IZFH-NEXT: fcvt.h.s fa0, fa0
; RV32IZFH-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32IZFH-NEXT: addi sp, sp, 16
; RV32IZFH-NEXT: ret
;
; RV64IZFH-LABEL: ldexp_half:
; RV64IZFH: # %bb.0:
; RV64IZFH-NEXT: addi sp, sp, -16
; RV64IZFH-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64IZFH-NEXT: fcvt.s.h fa0, fa0
; RV64IZFH-NEXT: call ldexpf
; RV64IZFH-NEXT: fcvt.h.s fa0, fa0
; RV64IZFH-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64IZFH-NEXT: addi sp, sp, 16
; RV64IZFH-NEXT: ret
;
; RV32IZHINX-LABEL: ldexp_half:
; RV32IZHINX: # %bb.0:
; RV32IZHINX-NEXT: addi sp, sp, -16
; RV32IZHINX-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32IZHINX-NEXT: fcvt.s.h a0, a0
; RV32IZHINX-NEXT: call ldexpf
; RV32IZHINX-NEXT: fcvt.h.s a0, a0
; RV32IZHINX-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32IZHINX-NEXT: addi sp, sp, 16
; RV32IZHINX-NEXT: ret
;
; RV64IZHINX-LABEL: ldexp_half:
; RV64IZHINX: # %bb.0:
; RV64IZHINX-NEXT: addi sp, sp, -16
; RV64IZHINX-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64IZHINX-NEXT: fcvt.s.h a0, a0
; RV64IZHINX-NEXT: call ldexpf
; RV64IZHINX-NEXT: fcvt.h.s a0, a0
; RV64IZHINX-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64IZHINX-NEXT: addi sp, sp, 16
; RV64IZHINX-NEXT: ret
;
; RV32I-LABEL: ldexp_half:
; RV32I: # %bb.0:
; RV32I-NEXT: addi sp, sp, -16
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32I-NEXT: mv s0, a1
; RV32I-NEXT: slli a0, a0, 16
; RV32I-NEXT: srli a0, a0, 16
; RV32I-NEXT: call __extendhfsf2
; RV32I-NEXT: mv a1, s0
; RV32I-NEXT: call ldexpf
; RV32I-NEXT: call __truncsfhf2
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32I-NEXT: addi sp, sp, 16
; RV32I-NEXT: ret
;
; RV64I-LABEL: ldexp_half:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-NEXT: mv s0, a1
; RV64I-NEXT: slli a0, a0, 48
; RV64I-NEXT: srli a0, a0, 48
; RV64I-NEXT: call __extendhfsf2
; RV64I-NEXT: mv a1, s0
; RV64I-NEXT: call ldexpf
; RV64I-NEXT: call __truncsfhf2
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
;
; RV32IZFHMIN-LABEL: ldexp_half:
; RV32IZFHMIN: # %bb.0:
; RV32IZFHMIN-NEXT: addi sp, sp, -16
; RV32IZFHMIN-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32IZFHMIN-NEXT: fcvt.s.h fa0, fa0
; RV32IZFHMIN-NEXT: call ldexpf
; RV32IZFHMIN-NEXT: fcvt.h.s fa0, fa0
; RV32IZFHMIN-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32IZFHMIN-NEXT: addi sp, sp, 16
; RV32IZFHMIN-NEXT: ret
;
; RV64IZFHMIN-LABEL: ldexp_half:
; RV64IZFHMIN: # %bb.0:
; RV64IZFHMIN-NEXT: addi sp, sp, -16
; RV64IZFHMIN-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64IZFHMIN-NEXT: fcvt.s.h fa0, fa0
; RV64IZFHMIN-NEXT: call ldexpf
; RV64IZFHMIN-NEXT: fcvt.h.s fa0, fa0
; RV64IZFHMIN-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64IZFHMIN-NEXT: addi sp, sp, 16
; RV64IZFHMIN-NEXT: ret
;
; RV32IZHINXMIN-LABEL: ldexp_half:
; RV32IZHINXMIN: # %bb.0:
; RV32IZHINXMIN-NEXT: addi sp, sp, -16
; RV32IZHINXMIN-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32IZHINXMIN-NEXT: fcvt.s.h a0, a0
; RV32IZHINXMIN-NEXT: call ldexpf
; RV32IZHINXMIN-NEXT: fcvt.h.s a0, a0
; RV32IZHINXMIN-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32IZHINXMIN-NEXT: addi sp, sp, 16
; RV32IZHINXMIN-NEXT: ret
;
; RV64IZHINXMIN-LABEL: ldexp_half:
; RV64IZHINXMIN: # %bb.0:
; RV64IZHINXMIN-NEXT: addi sp, sp, -16
; RV64IZHINXMIN-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64IZHINXMIN-NEXT: fcvt.s.h a0, a0
; RV64IZHINXMIN-NEXT: call ldexpf
; RV64IZHINXMIN-NEXT: fcvt.h.s a0, a0
; RV64IZHINXMIN-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64IZHINXMIN-NEXT: addi sp, sp, 16
; RV64IZHINXMIN-NEXT: ret
%z = call half @llvm.ldexp.f16.i32(half %x, i32 %y)
ret half %z
}
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