eb44f3fc58
This improves our coverage of soft float libcalls lowering. Remove most of the test cases from rv64i-single-softfloat.ll. They were duplicated in the test files that now test softflow. Only a couple test cases for constrained FP remain. Those should be removed when we start supporting constrained FP. This is follow up from D113528.
1369 lines
42 KiB
LLVM
1369 lines
42 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv32 -mattr=+f -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV32IF %s
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; RUN: llc -mtriple=riscv64 -mattr=+f -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV64IF %s
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; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV32I %s
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; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV64I %s
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; These tests are each targeted at a particular RISC-V FPU instruction. Most
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; other files in this folder exercise LLVM IR instructions that don't directly
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; match a RISC-V instruction.
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define float @fadd_s(float %a, float %b) nounwind {
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; RV32IF-LABEL: fadd_s:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: fmv.w.x ft0, a1
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; RV32IF-NEXT: fmv.w.x ft1, a0
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; RV32IF-NEXT: fadd.s ft0, ft1, ft0
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; RV32IF-NEXT: fmv.x.w a0, ft0
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: fadd_s:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: fmv.w.x ft0, a1
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; RV64IF-NEXT: fmv.w.x ft1, a0
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; RV64IF-NEXT: fadd.s ft0, ft1, ft0
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; RV64IF-NEXT: fmv.x.w a0, ft0
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; RV64IF-NEXT: ret
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;
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; RV32I-LABEL: fadd_s:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32I-NEXT: call __addsf3@plt
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; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: fadd_s:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: call __addsf3@plt
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%1 = fadd float %a, %b
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ret float %1
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}
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define float @fsub_s(float %a, float %b) nounwind {
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; RV32IF-LABEL: fsub_s:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: fmv.w.x ft0, a1
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; RV32IF-NEXT: fmv.w.x ft1, a0
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; RV32IF-NEXT: fsub.s ft0, ft1, ft0
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; RV32IF-NEXT: fmv.x.w a0, ft0
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: fsub_s:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: fmv.w.x ft0, a1
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; RV64IF-NEXT: fmv.w.x ft1, a0
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; RV64IF-NEXT: fsub.s ft0, ft1, ft0
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; RV64IF-NEXT: fmv.x.w a0, ft0
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; RV64IF-NEXT: ret
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;
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; RV32I-LABEL: fsub_s:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32I-NEXT: call __subsf3@plt
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; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: fsub_s:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: call __subsf3@plt
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%1 = fsub float %a, %b
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ret float %1
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}
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define float @fmul_s(float %a, float %b) nounwind {
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; RV32IF-LABEL: fmul_s:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: fmv.w.x ft0, a1
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; RV32IF-NEXT: fmv.w.x ft1, a0
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; RV32IF-NEXT: fmul.s ft0, ft1, ft0
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; RV32IF-NEXT: fmv.x.w a0, ft0
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: fmul_s:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: fmv.w.x ft0, a1
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; RV64IF-NEXT: fmv.w.x ft1, a0
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; RV64IF-NEXT: fmul.s ft0, ft1, ft0
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; RV64IF-NEXT: fmv.x.w a0, ft0
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; RV64IF-NEXT: ret
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;
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; RV32I-LABEL: fmul_s:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32I-NEXT: call __mulsf3@plt
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; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: fmul_s:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: call __mulsf3@plt
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%1 = fmul float %a, %b
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ret float %1
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}
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define float @fdiv_s(float %a, float %b) nounwind {
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; RV32IF-LABEL: fdiv_s:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: fmv.w.x ft0, a1
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; RV32IF-NEXT: fmv.w.x ft1, a0
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; RV32IF-NEXT: fdiv.s ft0, ft1, ft0
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; RV32IF-NEXT: fmv.x.w a0, ft0
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: fdiv_s:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: fmv.w.x ft0, a1
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; RV64IF-NEXT: fmv.w.x ft1, a0
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; RV64IF-NEXT: fdiv.s ft0, ft1, ft0
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; RV64IF-NEXT: fmv.x.w a0, ft0
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; RV64IF-NEXT: ret
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;
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; RV32I-LABEL: fdiv_s:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32I-NEXT: call __divsf3@plt
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; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: fdiv_s:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: call __divsf3@plt
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%1 = fdiv float %a, %b
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ret float %1
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}
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declare float @llvm.sqrt.f32(float)
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define float @fsqrt_s(float %a) nounwind {
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; RV32IF-LABEL: fsqrt_s:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: fmv.w.x ft0, a0
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; RV32IF-NEXT: fsqrt.s ft0, ft0
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; RV32IF-NEXT: fmv.x.w a0, ft0
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: fsqrt_s:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: fmv.w.x ft0, a0
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; RV64IF-NEXT: fsqrt.s ft0, ft0
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; RV64IF-NEXT: fmv.x.w a0, ft0
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; RV64IF-NEXT: ret
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;
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; RV32I-LABEL: fsqrt_s:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32I-NEXT: call sqrtf@plt
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; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: fsqrt_s:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: call sqrtf@plt
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%1 = call float @llvm.sqrt.f32(float %a)
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ret float %1
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}
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declare float @llvm.copysign.f32(float, float)
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define float @fsgnj_s(float %a, float %b) nounwind {
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; RV32IF-LABEL: fsgnj_s:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: fmv.w.x ft0, a1
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; RV32IF-NEXT: fmv.w.x ft1, a0
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; RV32IF-NEXT: fsgnj.s ft0, ft1, ft0
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; RV32IF-NEXT: fmv.x.w a0, ft0
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: fsgnj_s:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: fmv.w.x ft0, a1
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; RV64IF-NEXT: fmv.w.x ft1, a0
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; RV64IF-NEXT: fsgnj.s ft0, ft1, ft0
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; RV64IF-NEXT: fmv.x.w a0, ft0
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; RV64IF-NEXT: ret
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;
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; RV32I-LABEL: fsgnj_s:
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; RV32I: # %bb.0:
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; RV32I-NEXT: lui a2, 524288
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; RV32I-NEXT: and a1, a1, a2
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; RV32I-NEXT: addi a2, a2, -1
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; RV32I-NEXT: and a0, a0, a2
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; RV32I-NEXT: or a0, a0, a1
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: fsgnj_s:
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; RV64I: # %bb.0:
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; RV64I-NEXT: lui a2, 524288
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; RV64I-NEXT: and a1, a1, a2
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; RV64I-NEXT: addiw a2, a2, -1
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; RV64I-NEXT: and a0, a0, a2
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; RV64I-NEXT: or a0, a0, a1
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; RV64I-NEXT: ret
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%1 = call float @llvm.copysign.f32(float %a, float %b)
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ret float %1
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}
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; This function performs extra work to ensure that
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; DAGCombiner::visitBITCAST doesn't replace the fneg with an xor.
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define i32 @fneg_s(float %a, float %b) nounwind {
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; RV32IF-LABEL: fneg_s:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: fmv.w.x ft0, a0
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; RV32IF-NEXT: fadd.s ft0, ft0, ft0
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; RV32IF-NEXT: fneg.s ft1, ft0
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; RV32IF-NEXT: feq.s a0, ft0, ft1
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: fneg_s:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: fmv.w.x ft0, a0
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; RV64IF-NEXT: fadd.s ft0, ft0, ft0
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; RV64IF-NEXT: fneg.s ft1, ft0
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; RV64IF-NEXT: feq.s a0, ft0, ft1
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; RV64IF-NEXT: ret
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;
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; RV32I-LABEL: fneg_s:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32I-NEXT: mv a1, a0
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; RV32I-NEXT: call __addsf3@plt
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; RV32I-NEXT: lui a1, 524288
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; RV32I-NEXT: xor a1, a0, a1
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; RV32I-NEXT: call __eqsf2@plt
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; RV32I-NEXT: seqz a0, a0
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; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: fneg_s:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: mv a1, a0
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; RV64I-NEXT: call __addsf3@plt
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; RV64I-NEXT: lui a1, 524288
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; RV64I-NEXT: xor a1, a0, a1
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; RV64I-NEXT: call __eqsf2@plt
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; RV64I-NEXT: seqz a0, a0
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%1 = fadd float %a, %a
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%2 = fneg float %1
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%3 = fcmp oeq float %1, %2
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%4 = zext i1 %3 to i32
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ret i32 %4
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}
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; This function performs extra work to ensure that
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; DAGCombiner::visitBITCAST doesn't replace the fneg with an xor.
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define float @fsgnjn_s(float %a, float %b) nounwind {
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; RV32IF-LABEL: fsgnjn_s:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: fmv.w.x ft0, a1
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; RV32IF-NEXT: fmv.w.x ft1, a0
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; RV32IF-NEXT: fadd.s ft0, ft1, ft0
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; RV32IF-NEXT: fsgnjn.s ft0, ft1, ft0
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; RV32IF-NEXT: fmv.x.w a0, ft0
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: fsgnjn_s:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: fmv.w.x ft0, a1
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; RV64IF-NEXT: fmv.w.x ft1, a0
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; RV64IF-NEXT: fadd.s ft0, ft1, ft0
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; RV64IF-NEXT: fsgnjn.s ft0, ft1, ft0
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; RV64IF-NEXT: fmv.x.w a0, ft0
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; RV64IF-NEXT: ret
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;
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; RV32I-LABEL: fsgnjn_s:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32I-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
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; RV32I-NEXT: mv s0, a0
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; RV32I-NEXT: call __addsf3@plt
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; RV32I-NEXT: not a0, a0
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; RV32I-NEXT: lui a1, 524288
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; RV32I-NEXT: addi a2, a1, -1
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; RV32I-NEXT: and a2, s0, a2
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; RV32I-NEXT: and a0, a0, a1
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; RV32I-NEXT: or a0, a2, a0
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; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
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; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: fsgnjn_s:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
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; RV64I-NEXT: mv s0, a0
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; RV64I-NEXT: call __addsf3@plt
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; RV64I-NEXT: not a0, a0
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; RV64I-NEXT: lui a1, 524288
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; RV64I-NEXT: addiw a2, a1, -1
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; RV64I-NEXT: and a2, s0, a2
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; RV64I-NEXT: and a0, a0, a1
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; RV64I-NEXT: or a0, a2, a0
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; RV64I-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%1 = fadd float %a, %b
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%2 = fneg float %1
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%3 = call float @llvm.copysign.f32(float %a, float %2)
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ret float %3
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}
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declare float @llvm.fabs.f32(float)
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; This function performs extra work to ensure that
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; DAGCombiner::visitBITCAST doesn't replace the fabs with an and.
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define float @fabs_s(float %a, float %b) nounwind {
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; RV32IF-LABEL: fabs_s:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: fmv.w.x ft0, a1
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; RV32IF-NEXT: fmv.w.x ft1, a0
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; RV32IF-NEXT: fadd.s ft0, ft1, ft0
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; RV32IF-NEXT: fabs.s ft1, ft0
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; RV32IF-NEXT: fadd.s ft0, ft1, ft0
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; RV32IF-NEXT: fmv.x.w a0, ft0
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: fabs_s:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: fmv.w.x ft0, a1
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; RV64IF-NEXT: fmv.w.x ft1, a0
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; RV64IF-NEXT: fadd.s ft0, ft1, ft0
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; RV64IF-NEXT: fabs.s ft1, ft0
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; RV64IF-NEXT: fadd.s ft0, ft1, ft0
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fabs_s:
|
|
; RV32I: # %bb.0:
|
|
; RV32I-NEXT: addi sp, sp, -16
|
|
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: mv a1, a0
|
|
; RV32I-NEXT: lui a0, 524288
|
|
; RV32I-NEXT: addi a0, a0, -1
|
|
; RV32I-NEXT: and a0, a1, a0
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fabs_s:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -16
|
|
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: mv a1, a0
|
|
; RV64I-NEXT: lui a0, 524288
|
|
; RV64I-NEXT: addiw a0, a0, -1
|
|
; RV64I-NEXT: and a0, a1, a0
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 16
|
|
; RV64I-NEXT: ret
|
|
%1 = fadd float %a, %b
|
|
%2 = call float @llvm.fabs.f32(float %1)
|
|
%3 = fadd float %2, %1
|
|
ret float %3
|
|
}
|
|
|
|
declare float @llvm.minnum.f32(float, float)
|
|
|
|
define float @fmin_s(float %a, float %b) nounwind {
|
|
; RV32IF-LABEL: fmin_s:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a1
|
|
; RV32IF-NEXT: fmv.w.x ft1, a0
|
|
; RV32IF-NEXT: fmin.s ft0, ft1, ft0
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fmin_s:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a1
|
|
; RV64IF-NEXT: fmv.w.x ft1, a0
|
|
; RV64IF-NEXT: fmin.s ft0, ft1, ft0
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fmin_s:
|
|
; RV32I: # %bb.0:
|
|
; RV32I-NEXT: addi sp, sp, -16
|
|
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: call fminf@plt
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fmin_s:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -16
|
|
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: call fminf@plt
|
|
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 16
|
|
; RV64I-NEXT: ret
|
|
%1 = call float @llvm.minnum.f32(float %a, float %b)
|
|
ret float %1
|
|
}
|
|
|
|
declare float @llvm.maxnum.f32(float, float)
|
|
|
|
define float @fmax_s(float %a, float %b) nounwind {
|
|
; RV32IF-LABEL: fmax_s:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a1
|
|
; RV32IF-NEXT: fmv.w.x ft1, a0
|
|
; RV32IF-NEXT: fmax.s ft0, ft1, ft0
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fmax_s:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a1
|
|
; RV64IF-NEXT: fmv.w.x ft1, a0
|
|
; RV64IF-NEXT: fmax.s ft0, ft1, ft0
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fmax_s:
|
|
; RV32I: # %bb.0:
|
|
; RV32I-NEXT: addi sp, sp, -16
|
|
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: call fmaxf@plt
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fmax_s:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -16
|
|
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: call fmaxf@plt
|
|
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 16
|
|
; RV64I-NEXT: ret
|
|
%1 = call float @llvm.maxnum.f32(float %a, float %b)
|
|
ret float %1
|
|
}
|
|
|
|
define i32 @feq_s(float %a, float %b) nounwind {
|
|
; RV32IF-LABEL: feq_s:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a1
|
|
; RV32IF-NEXT: fmv.w.x ft1, a0
|
|
; RV32IF-NEXT: feq.s a0, ft1, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: feq_s:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a1
|
|
; RV64IF-NEXT: fmv.w.x ft1, a0
|
|
; RV64IF-NEXT: feq.s a0, ft1, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: feq_s:
|
|
; RV32I: # %bb.0:
|
|
; RV32I-NEXT: addi sp, sp, -16
|
|
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: call __eqsf2@plt
|
|
; RV32I-NEXT: seqz a0, a0
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: feq_s:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -16
|
|
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: call __eqsf2@plt
|
|
; RV64I-NEXT: seqz a0, a0
|
|
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 16
|
|
; RV64I-NEXT: ret
|
|
%1 = fcmp oeq float %a, %b
|
|
%2 = zext i1 %1 to i32
|
|
ret i32 %2
|
|
}
|
|
|
|
define i32 @flt_s(float %a, float %b) nounwind {
|
|
; RV32IF-LABEL: flt_s:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a1
|
|
; RV32IF-NEXT: fmv.w.x ft1, a0
|
|
; RV32IF-NEXT: flt.s a0, ft1, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: flt_s:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a1
|
|
; RV64IF-NEXT: fmv.w.x ft1, a0
|
|
; RV64IF-NEXT: flt.s a0, ft1, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: flt_s:
|
|
; RV32I: # %bb.0:
|
|
; RV32I-NEXT: addi sp, sp, -16
|
|
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: call __ltsf2@plt
|
|
; RV32I-NEXT: slti a0, a0, 0
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: flt_s:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -16
|
|
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: call __ltsf2@plt
|
|
; RV64I-NEXT: slti a0, a0, 0
|
|
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 16
|
|
; RV64I-NEXT: ret
|
|
%1 = fcmp olt float %a, %b
|
|
%2 = zext i1 %1 to i32
|
|
ret i32 %2
|
|
}
|
|
|
|
define i32 @fle_s(float %a, float %b) nounwind {
|
|
; RV32IF-LABEL: fle_s:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a1
|
|
; RV32IF-NEXT: fmv.w.x ft1, a0
|
|
; RV32IF-NEXT: fle.s a0, ft1, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fle_s:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a1
|
|
; RV64IF-NEXT: fmv.w.x ft1, a0
|
|
; RV64IF-NEXT: fle.s a0, ft1, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fle_s:
|
|
; RV32I: # %bb.0:
|
|
; RV32I-NEXT: addi sp, sp, -16
|
|
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: call __lesf2@plt
|
|
; RV32I-NEXT: slti a0, a0, 1
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fle_s:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -16
|
|
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: call __lesf2@plt
|
|
; RV64I-NEXT: slti a0, a0, 1
|
|
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 16
|
|
; RV64I-NEXT: ret
|
|
%1 = fcmp ole float %a, %b
|
|
%2 = zext i1 %1 to i32
|
|
ret i32 %2
|
|
}
|
|
|
|
declare float @llvm.fma.f32(float, float, float)
|
|
|
|
define float @fmadd_s(float %a, float %b, float %c) nounwind {
|
|
; RV32IF-LABEL: fmadd_s:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a2
|
|
; RV32IF-NEXT: fmv.w.x ft1, a1
|
|
; RV32IF-NEXT: fmv.w.x ft2, a0
|
|
; RV32IF-NEXT: fmadd.s ft0, ft2, ft1, ft0
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fmadd_s:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a2
|
|
; RV64IF-NEXT: fmv.w.x ft1, a1
|
|
; RV64IF-NEXT: fmv.w.x ft2, a0
|
|
; RV64IF-NEXT: fmadd.s ft0, ft2, ft1, ft0
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fmadd_s:
|
|
; RV32I: # %bb.0:
|
|
; RV32I-NEXT: addi sp, sp, -16
|
|
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: call fmaf@plt
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fmadd_s:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -16
|
|
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: call fmaf@plt
|
|
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 16
|
|
; RV64I-NEXT: ret
|
|
%1 = call float @llvm.fma.f32(float %a, float %b, float %c)
|
|
ret float %1
|
|
}
|
|
|
|
define float @fmsub_s(float %a, float %b, float %c) nounwind {
|
|
; RV32IF-LABEL: fmsub_s:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a1
|
|
; RV32IF-NEXT: fmv.w.x ft1, a0
|
|
; RV32IF-NEXT: fmv.w.x ft2, a2
|
|
; RV32IF-NEXT: fmv.w.x ft3, zero
|
|
; RV32IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV32IF-NEXT: fmsub.s ft0, ft1, ft0, ft2
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fmsub_s:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a1
|
|
; RV64IF-NEXT: fmv.w.x ft1, a0
|
|
; RV64IF-NEXT: fmv.w.x ft2, a2
|
|
; RV64IF-NEXT: fmv.w.x ft3, zero
|
|
; RV64IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV64IF-NEXT: fmsub.s ft0, ft1, ft0, ft2
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fmsub_s:
|
|
; 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: sw s1, 4(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: mv s0, a1
|
|
; RV32I-NEXT: mv s1, a0
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: lui a1, 524288
|
|
; RV32I-NEXT: xor a2, a0, a1
|
|
; RV32I-NEXT: mv a0, s1
|
|
; RV32I-NEXT: mv a1, s0
|
|
; RV32I-NEXT: call fmaf@plt
|
|
; RV32I-NEXT: lw s1, 4(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fmsub_s:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -32
|
|
; RV64I-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: mv s0, a1
|
|
; RV64I-NEXT: mv s1, a0
|
|
; RV64I-NEXT: mv a0, a2
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: lui a1, 524288
|
|
; RV64I-NEXT: xor a2, a0, a1
|
|
; RV64I-NEXT: mv a0, s1
|
|
; RV64I-NEXT: mv a1, s0
|
|
; RV64I-NEXT: call fmaf@plt
|
|
; RV64I-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 32
|
|
; RV64I-NEXT: ret
|
|
%c_ = fadd float 0.0, %c ; avoid negation using xor
|
|
%negc = fsub float -0.0, %c_
|
|
%1 = call float @llvm.fma.f32(float %a, float %b, float %negc)
|
|
ret float %1
|
|
}
|
|
|
|
define float @fnmadd_s(float %a, float %b, float %c) nounwind {
|
|
; RV32IF-LABEL: fnmadd_s:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a1
|
|
; RV32IF-NEXT: fmv.w.x ft1, a2
|
|
; RV32IF-NEXT: fmv.w.x ft2, a0
|
|
; RV32IF-NEXT: fmv.w.x ft3, zero
|
|
; RV32IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV32IF-NEXT: fadd.s ft1, ft1, ft3
|
|
; RV32IF-NEXT: fnmadd.s ft0, ft2, ft0, ft1
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fnmadd_s:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a1
|
|
; RV64IF-NEXT: fmv.w.x ft1, a2
|
|
; RV64IF-NEXT: fmv.w.x ft2, a0
|
|
; RV64IF-NEXT: fmv.w.x ft3, zero
|
|
; RV64IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV64IF-NEXT: fadd.s ft1, ft1, ft3
|
|
; RV64IF-NEXT: fnmadd.s ft0, ft2, ft0, ft1
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fnmadd_s:
|
|
; 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: sw s1, 4(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: sw s2, 0(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: mv s0, a2
|
|
; RV32I-NEXT: mv s2, a1
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: mv s1, a0
|
|
; RV32I-NEXT: mv a0, s0
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: lui a2, 524288
|
|
; RV32I-NEXT: xor a1, s1, a2
|
|
; RV32I-NEXT: xor a2, a0, a2
|
|
; RV32I-NEXT: mv a0, a1
|
|
; RV32I-NEXT: mv a1, s2
|
|
; RV32I-NEXT: call fmaf@plt
|
|
; RV32I-NEXT: lw s2, 0(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s1, 4(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fnmadd_s:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -32
|
|
; RV64I-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s2, 0(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: mv s0, a2
|
|
; RV64I-NEXT: mv s2, a1
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: mv s1, a0
|
|
; RV64I-NEXT: mv a0, s0
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: lui a2, 524288
|
|
; RV64I-NEXT: xor a1, s1, a2
|
|
; RV64I-NEXT: xor a2, a0, a2
|
|
; RV64I-NEXT: mv a0, a1
|
|
; RV64I-NEXT: mv a1, s2
|
|
; RV64I-NEXT: call fmaf@plt
|
|
; RV64I-NEXT: ld s2, 0(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 32
|
|
; RV64I-NEXT: ret
|
|
%a_ = fadd float 0.0, %a
|
|
%c_ = fadd float 0.0, %c
|
|
%nega = fsub float -0.0, %a_
|
|
%negc = fsub float -0.0, %c_
|
|
%1 = call float @llvm.fma.f32(float %nega, float %b, float %negc)
|
|
ret float %1
|
|
}
|
|
|
|
define float @fnmadd_s_2(float %a, float %b, float %c) nounwind {
|
|
; RV32IF-LABEL: fnmadd_s_2:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a0
|
|
; RV32IF-NEXT: fmv.w.x ft1, a2
|
|
; RV32IF-NEXT: fmv.w.x ft2, a1
|
|
; RV32IF-NEXT: fmv.w.x ft3, zero
|
|
; RV32IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV32IF-NEXT: fadd.s ft1, ft1, ft3
|
|
; RV32IF-NEXT: fnmadd.s ft0, ft2, ft0, ft1
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fnmadd_s_2:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a0
|
|
; RV64IF-NEXT: fmv.w.x ft1, a2
|
|
; RV64IF-NEXT: fmv.w.x ft2, a1
|
|
; RV64IF-NEXT: fmv.w.x ft3, zero
|
|
; RV64IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV64IF-NEXT: fadd.s ft1, ft1, ft3
|
|
; RV64IF-NEXT: fnmadd.s ft0, ft2, ft0, ft1
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fnmadd_s_2:
|
|
; 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: sw s1, 4(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: sw s2, 0(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: mv s0, a2
|
|
; RV32I-NEXT: mv s2, a0
|
|
; RV32I-NEXT: mv a0, a1
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: mv s1, a0
|
|
; RV32I-NEXT: mv a0, s0
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: lui a2, 524288
|
|
; RV32I-NEXT: xor a1, s1, a2
|
|
; RV32I-NEXT: xor a2, a0, a2
|
|
; RV32I-NEXT: mv a0, s2
|
|
; RV32I-NEXT: call fmaf@plt
|
|
; RV32I-NEXT: lw s2, 0(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s1, 4(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fnmadd_s_2:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -32
|
|
; RV64I-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s2, 0(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: mv s0, a2
|
|
; RV64I-NEXT: mv s2, a0
|
|
; RV64I-NEXT: mv a0, a1
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: mv s1, a0
|
|
; RV64I-NEXT: mv a0, s0
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: lui a2, 524288
|
|
; RV64I-NEXT: xor a1, s1, a2
|
|
; RV64I-NEXT: xor a2, a0, a2
|
|
; RV64I-NEXT: mv a0, s2
|
|
; RV64I-NEXT: call fmaf@plt
|
|
; RV64I-NEXT: ld s2, 0(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 32
|
|
; RV64I-NEXT: ret
|
|
%b_ = fadd float 0.0, %b
|
|
%c_ = fadd float 0.0, %c
|
|
%negb = fsub float -0.0, %b_
|
|
%negc = fsub float -0.0, %c_
|
|
%1 = call float @llvm.fma.f32(float %a, float %negb, float %negc)
|
|
ret float %1
|
|
}
|
|
|
|
define float @fnmsub_s(float %a, float %b, float %c) nounwind {
|
|
; RV32IF-LABEL: fnmsub_s:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a2
|
|
; RV32IF-NEXT: fmv.w.x ft1, a1
|
|
; RV32IF-NEXT: fmv.w.x ft2, a0
|
|
; RV32IF-NEXT: fmv.w.x ft3, zero
|
|
; RV32IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV32IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fnmsub_s:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a2
|
|
; RV64IF-NEXT: fmv.w.x ft1, a1
|
|
; RV64IF-NEXT: fmv.w.x ft2, a0
|
|
; RV64IF-NEXT: fmv.w.x ft3, zero
|
|
; RV64IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV64IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fnmsub_s:
|
|
; 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: sw s1, 4(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: mv s0, a2
|
|
; RV32I-NEXT: mv s1, a1
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: lui a1, 524288
|
|
; RV32I-NEXT: xor a0, a0, a1
|
|
; RV32I-NEXT: mv a1, s1
|
|
; RV32I-NEXT: mv a2, s0
|
|
; RV32I-NEXT: call fmaf@plt
|
|
; RV32I-NEXT: lw s1, 4(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fnmsub_s:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -32
|
|
; RV64I-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: mv s0, a2
|
|
; RV64I-NEXT: mv s1, a1
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: lui a1, 524288
|
|
; RV64I-NEXT: xor a0, a0, a1
|
|
; RV64I-NEXT: mv a1, s1
|
|
; RV64I-NEXT: mv a2, s0
|
|
; RV64I-NEXT: call fmaf@plt
|
|
; RV64I-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 32
|
|
; RV64I-NEXT: ret
|
|
%a_ = fadd float 0.0, %a
|
|
%nega = fsub float -0.0, %a_
|
|
%1 = call float @llvm.fma.f32(float %nega, float %b, float %c)
|
|
ret float %1
|
|
}
|
|
|
|
define float @fnmsub_s_2(float %a, float %b, float %c) nounwind {
|
|
; RV32IF-LABEL: fnmsub_s_2:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a2
|
|
; RV32IF-NEXT: fmv.w.x ft1, a0
|
|
; RV32IF-NEXT: fmv.w.x ft2, a1
|
|
; RV32IF-NEXT: fmv.w.x ft3, zero
|
|
; RV32IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV32IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fnmsub_s_2:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a2
|
|
; RV64IF-NEXT: fmv.w.x ft1, a0
|
|
; RV64IF-NEXT: fmv.w.x ft2, a1
|
|
; RV64IF-NEXT: fmv.w.x ft3, zero
|
|
; RV64IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV64IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fnmsub_s_2:
|
|
; 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: sw s1, 4(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: mv s0, a2
|
|
; RV32I-NEXT: mv s1, a0
|
|
; RV32I-NEXT: mv a0, a1
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: lui a1, 524288
|
|
; RV32I-NEXT: xor a1, a0, a1
|
|
; RV32I-NEXT: mv a0, s1
|
|
; RV32I-NEXT: mv a2, s0
|
|
; RV32I-NEXT: call fmaf@plt
|
|
; RV32I-NEXT: lw s1, 4(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fnmsub_s_2:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -32
|
|
; RV64I-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: mv s0, a2
|
|
; RV64I-NEXT: mv s1, a0
|
|
; RV64I-NEXT: mv a0, a1
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: lui a1, 524288
|
|
; RV64I-NEXT: xor a1, a0, a1
|
|
; RV64I-NEXT: mv a0, s1
|
|
; RV64I-NEXT: mv a2, s0
|
|
; RV64I-NEXT: call fmaf@plt
|
|
; RV64I-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 32
|
|
; RV64I-NEXT: ret
|
|
%b_ = fadd float 0.0, %b
|
|
%negb = fsub float -0.0, %b_
|
|
%1 = call float @llvm.fma.f32(float %a, float %negb, float %c)
|
|
ret float %1
|
|
}
|
|
|
|
define float @fmadd_s_contract(float %a, float %b, float %c) nounwind {
|
|
; RV32IF-LABEL: fmadd_s_contract:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a2
|
|
; RV32IF-NEXT: fmv.w.x ft1, a1
|
|
; RV32IF-NEXT: fmv.w.x ft2, a0
|
|
; RV32IF-NEXT: fmadd.s ft0, ft2, ft1, ft0
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fmadd_s_contract:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a2
|
|
; RV64IF-NEXT: fmv.w.x ft1, a1
|
|
; RV64IF-NEXT: fmv.w.x ft2, a0
|
|
; RV64IF-NEXT: fmadd.s ft0, ft2, ft1, ft0
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fmadd_s_contract:
|
|
; 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, a2
|
|
; RV32I-NEXT: call __mulsf3@plt
|
|
; RV32I-NEXT: mv a1, s0
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fmadd_s_contract:
|
|
; 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, a2
|
|
; RV64I-NEXT: call __mulsf3@plt
|
|
; RV64I-NEXT: mv a1, s0
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 16
|
|
; RV64I-NEXT: ret
|
|
%1 = fmul contract float %a, %b
|
|
%2 = fadd contract float %1, %c
|
|
ret float %2
|
|
}
|
|
|
|
define float @fmsub_s_contract(float %a, float %b, float %c) nounwind {
|
|
; RV32IF-LABEL: fmsub_s_contract:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a1
|
|
; RV32IF-NEXT: fmv.w.x ft1, a0
|
|
; RV32IF-NEXT: fmv.w.x ft2, a2
|
|
; RV32IF-NEXT: fmv.w.x ft3, zero
|
|
; RV32IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV32IF-NEXT: fmsub.s ft0, ft1, ft0, ft2
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fmsub_s_contract:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a1
|
|
; RV64IF-NEXT: fmv.w.x ft1, a0
|
|
; RV64IF-NEXT: fmv.w.x ft2, a2
|
|
; RV64IF-NEXT: fmv.w.x ft3, zero
|
|
; RV64IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV64IF-NEXT: fmsub.s ft0, ft1, ft0, ft2
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fmsub_s_contract:
|
|
; 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: sw s1, 4(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: sw s2, 0(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: mv s2, a1
|
|
; RV32I-NEXT: mv s1, a0
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: mv s0, a0
|
|
; RV32I-NEXT: mv a0, s1
|
|
; RV32I-NEXT: mv a1, s2
|
|
; RV32I-NEXT: call __mulsf3@plt
|
|
; RV32I-NEXT: mv a1, s0
|
|
; RV32I-NEXT: call __subsf3@plt
|
|
; RV32I-NEXT: lw s2, 0(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s1, 4(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fmsub_s_contract:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -32
|
|
; RV64I-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s2, 0(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: mv s2, a1
|
|
; RV64I-NEXT: mv s1, a0
|
|
; RV64I-NEXT: mv a0, a2
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: mv s0, a0
|
|
; RV64I-NEXT: mv a0, s1
|
|
; RV64I-NEXT: mv a1, s2
|
|
; RV64I-NEXT: call __mulsf3@plt
|
|
; RV64I-NEXT: mv a1, s0
|
|
; RV64I-NEXT: call __subsf3@plt
|
|
; RV64I-NEXT: ld s2, 0(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 32
|
|
; RV64I-NEXT: ret
|
|
%c_ = fadd float 0.0, %c ; avoid negation using xor
|
|
%1 = fmul contract float %a, %b
|
|
%2 = fsub contract float %1, %c_
|
|
ret float %2
|
|
}
|
|
|
|
define float @fnmadd_s_contract(float %a, float %b, float %c) nounwind {
|
|
; RV32IF-LABEL: fnmadd_s_contract:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a2
|
|
; RV32IF-NEXT: fmv.w.x ft1, a1
|
|
; RV32IF-NEXT: fmv.w.x ft2, a0
|
|
; RV32IF-NEXT: fmv.w.x ft3, zero
|
|
; RV32IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV32IF-NEXT: fadd.s ft1, ft1, ft3
|
|
; RV32IF-NEXT: fadd.s ft0, ft0, ft3
|
|
; RV32IF-NEXT: fnmadd.s ft0, ft2, ft1, ft0
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fnmadd_s_contract:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a2
|
|
; RV64IF-NEXT: fmv.w.x ft1, a1
|
|
; RV64IF-NEXT: fmv.w.x ft2, a0
|
|
; RV64IF-NEXT: fmv.w.x ft3, zero
|
|
; RV64IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV64IF-NEXT: fadd.s ft1, ft1, ft3
|
|
; RV64IF-NEXT: fadd.s ft0, ft0, ft3
|
|
; RV64IF-NEXT: fnmadd.s ft0, ft2, ft1, ft0
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fnmadd_s_contract:
|
|
; RV32I: # %bb.0:
|
|
; RV32I-NEXT: addi sp, sp, -32
|
|
; RV32I-NEXT: sw ra, 28(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: sw s0, 24(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: sw s1, 20(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: sw s2, 16(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: sw s3, 12(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: mv s2, a2
|
|
; RV32I-NEXT: mv s1, a1
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: mv s3, a0
|
|
; RV32I-NEXT: mv a0, s1
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: mv s1, a0
|
|
; RV32I-NEXT: mv a0, s2
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: mv s0, a0
|
|
; RV32I-NEXT: mv a0, s3
|
|
; RV32I-NEXT: mv a1, s1
|
|
; RV32I-NEXT: call __mulsf3@plt
|
|
; RV32I-NEXT: lui a1, 524288
|
|
; RV32I-NEXT: xor a0, a0, a1
|
|
; RV32I-NEXT: mv a1, s0
|
|
; RV32I-NEXT: call __subsf3@plt
|
|
; RV32I-NEXT: lw s3, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s2, 16(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s1, 20(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s0, 24(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw ra, 28(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 32
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fnmadd_s_contract:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -48
|
|
; RV64I-NEXT: sd ra, 40(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s0, 32(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s1, 24(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s2, 16(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s3, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: mv s2, a2
|
|
; RV64I-NEXT: mv s1, a1
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: mv s3, a0
|
|
; RV64I-NEXT: mv a0, s1
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: mv s1, a0
|
|
; RV64I-NEXT: mv a0, s2
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: mv s0, a0
|
|
; RV64I-NEXT: mv a0, s3
|
|
; RV64I-NEXT: mv a1, s1
|
|
; RV64I-NEXT: call __mulsf3@plt
|
|
; RV64I-NEXT: lui a1, 524288
|
|
; RV64I-NEXT: xor a0, a0, a1
|
|
; RV64I-NEXT: mv a1, s0
|
|
; RV64I-NEXT: call __subsf3@plt
|
|
; RV64I-NEXT: ld s3, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s2, 16(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s1, 24(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s0, 32(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld ra, 40(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 48
|
|
; RV64I-NEXT: ret
|
|
%a_ = fadd float 0.0, %a ; avoid negation using xor
|
|
%b_ = fadd float 0.0, %b ; avoid negation using xor
|
|
%c_ = fadd float 0.0, %c ; avoid negation using xor
|
|
%1 = fmul contract float %a_, %b_
|
|
%2 = fneg float %1
|
|
%3 = fsub contract float %2, %c_
|
|
ret float %3
|
|
}
|
|
|
|
define float @fnmsub_s_contract(float %a, float %b, float %c) nounwind {
|
|
; RV32IF-LABEL: fnmsub_s_contract:
|
|
; RV32IF: # %bb.0:
|
|
; RV32IF-NEXT: fmv.w.x ft0, a2
|
|
; RV32IF-NEXT: fmv.w.x ft1, a1
|
|
; RV32IF-NEXT: fmv.w.x ft2, a0
|
|
; RV32IF-NEXT: fmv.w.x ft3, zero
|
|
; RV32IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV32IF-NEXT: fadd.s ft1, ft1, ft3
|
|
; RV32IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0
|
|
; RV32IF-NEXT: fmv.x.w a0, ft0
|
|
; RV32IF-NEXT: ret
|
|
;
|
|
; RV64IF-LABEL: fnmsub_s_contract:
|
|
; RV64IF: # %bb.0:
|
|
; RV64IF-NEXT: fmv.w.x ft0, a2
|
|
; RV64IF-NEXT: fmv.w.x ft1, a1
|
|
; RV64IF-NEXT: fmv.w.x ft2, a0
|
|
; RV64IF-NEXT: fmv.w.x ft3, zero
|
|
; RV64IF-NEXT: fadd.s ft2, ft2, ft3
|
|
; RV64IF-NEXT: fadd.s ft1, ft1, ft3
|
|
; RV64IF-NEXT: fnmsub.s ft0, ft2, ft1, ft0
|
|
; RV64IF-NEXT: fmv.x.w a0, ft0
|
|
; RV64IF-NEXT: ret
|
|
;
|
|
; RV32I-LABEL: fnmsub_s_contract:
|
|
; 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: sw s1, 4(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: sw s2, 0(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: mv s2, a2
|
|
; RV32I-NEXT: mv s1, a1
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: mv s0, a0
|
|
; RV32I-NEXT: mv a0, s1
|
|
; RV32I-NEXT: mv a1, zero
|
|
; RV32I-NEXT: call __addsf3@plt
|
|
; RV32I-NEXT: mv a1, a0
|
|
; RV32I-NEXT: mv a0, s0
|
|
; RV32I-NEXT: call __mulsf3@plt
|
|
; RV32I-NEXT: mv a1, a0
|
|
; RV32I-NEXT: mv a0, s2
|
|
; RV32I-NEXT: call __subsf3@plt
|
|
; RV32I-NEXT: lw s2, 0(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s1, 4(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV64I-LABEL: fnmsub_s_contract:
|
|
; RV64I: # %bb.0:
|
|
; RV64I-NEXT: addi sp, sp, -32
|
|
; RV64I-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: sd s2, 0(sp) # 8-byte Folded Spill
|
|
; RV64I-NEXT: mv s2, a2
|
|
; RV64I-NEXT: mv s1, a1
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: mv s0, a0
|
|
; RV64I-NEXT: mv a0, s1
|
|
; RV64I-NEXT: mv a1, zero
|
|
; RV64I-NEXT: call __addsf3@plt
|
|
; RV64I-NEXT: mv a1, a0
|
|
; RV64I-NEXT: mv a0, s0
|
|
; RV64I-NEXT: call __mulsf3@plt
|
|
; RV64I-NEXT: mv a1, a0
|
|
; RV64I-NEXT: mv a0, s2
|
|
; RV64I-NEXT: call __subsf3@plt
|
|
; RV64I-NEXT: ld s2, 0(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
|
|
; RV64I-NEXT: addi sp, sp, 32
|
|
; RV64I-NEXT: ret
|
|
%a_ = fadd float 0.0, %a ; avoid negation using xor
|
|
%b_ = fadd float 0.0, %b ; avoid negation using xor
|
|
%1 = fmul contract float %a_, %b_
|
|
%2 = fsub contract float %c, %1
|
|
ret float %2
|
|
}
|