| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \ |
| ; RUN: | FileCheck -check-prefix=RV32I %s |
| ; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \ |
| ; RUN: | FileCheck -check-prefix=RV64I %s |
| ; RUN: llc -mtriple=riscv64 -mcpu=sifive-u74 -verify-machineinstrs < %s \ |
| ; RUN: | FileCheck -check-prefix=SFB64 %s |
| ; RUN: llc -mtriple=riscv64 -mattr=+xventanacondops -verify-machineinstrs < %s \ |
| ; RUN: | FileCheck -check-prefix=VTCONDOPS64 %s |
| ; RUN: llc -mtriple=riscv32 -mattr=+experimental-zicond -verify-machineinstrs < %s \ |
| ; RUN: | FileCheck -check-prefixes=ZICOND,ZICOND32 %s |
| ; RUN: llc -mtriple=riscv64 -mattr=+experimental-zicond -verify-machineinstrs < %s \ |
| ; RUN: | FileCheck -check-prefixes=ZICOND,ZICOND64 %s |
| |
| ; InstCombine canonicalizes (c ? x | y : x) to (x | (c ? y : 0)) similar for |
| ; other binary operations using their identity value as the constant. |
| |
| ; We can reverse this for and/or/xor. Allowing us to pull the binop into |
| ; the basic block we create when we expand select. |
| |
| define signext i32 @and_select_all_ones_i32(i1 zeroext %c, i32 signext %x, i32 signext %y) { |
| ; RV32I-LABEL: and_select_all_ones_i32: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: addi a0, a0, -1 |
| ; RV32I-NEXT: or a0, a0, a1 |
| ; RV32I-NEXT: and a0, a0, a2 |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: and_select_all_ones_i32: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: addi a0, a0, -1 |
| ; RV64I-NEXT: or a0, a0, a1 |
| ; RV64I-NEXT: and a0, a0, a2 |
| ; RV64I-NEXT: ret |
| ; |
| ; SFB64-LABEL: and_select_all_ones_i32: |
| ; SFB64: # %bb.0: |
| ; SFB64-NEXT: beqz a0, .LBB0_2 |
| ; SFB64-NEXT: # %bb.1: |
| ; SFB64-NEXT: and a2, a2, a1 |
| ; SFB64-NEXT: .LBB0_2: |
| ; SFB64-NEXT: mv a0, a2 |
| ; SFB64-NEXT: ret |
| ; |
| ; VTCONDOPS64-LABEL: and_select_all_ones_i32: |
| ; VTCONDOPS64: # %bb.0: |
| ; VTCONDOPS64-NEXT: li a3, -1 |
| ; VTCONDOPS64-NEXT: vt.maskcn a3, a3, a0 |
| ; VTCONDOPS64-NEXT: vt.maskc a0, a1, a0 |
| ; VTCONDOPS64-NEXT: or a0, a0, a3 |
| ; VTCONDOPS64-NEXT: and a0, a0, a2 |
| ; VTCONDOPS64-NEXT: ret |
| ; |
| ; ZICOND-LABEL: and_select_all_ones_i32: |
| ; ZICOND: # %bb.0: |
| ; ZICOND-NEXT: li a3, -1 |
| ; ZICOND-NEXT: czero.nez a3, a3, a0 |
| ; ZICOND-NEXT: czero.eqz a0, a1, a0 |
| ; ZICOND-NEXT: or a0, a0, a3 |
| ; ZICOND-NEXT: and a0, a0, a2 |
| ; ZICOND-NEXT: ret |
| %a = select i1 %c, i32 %x, i32 -1 |
| %b = and i32 %a, %y |
| ret i32 %b |
| } |
| |
| define i64 @and_select_all_ones_i64(i1 zeroext %c, i64 %x, i64 %y) { |
| ; RV32I-LABEL: and_select_all_ones_i64: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: neg a0, a0 |
| ; RV32I-NEXT: or a2, a0, a2 |
| ; RV32I-NEXT: or a0, a0, a1 |
| ; RV32I-NEXT: and a0, a3, a0 |
| ; RV32I-NEXT: and a1, a4, a2 |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: and_select_all_ones_i64: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: neg a0, a0 |
| ; RV64I-NEXT: or a0, a0, a1 |
| ; RV64I-NEXT: and a0, a2, a0 |
| ; RV64I-NEXT: ret |
| ; |
| ; SFB64-LABEL: and_select_all_ones_i64: |
| ; SFB64: # %bb.0: |
| ; SFB64-NEXT: bnez a0, .LBB1_2 |
| ; SFB64-NEXT: # %bb.1: |
| ; SFB64-NEXT: and a2, a2, a1 |
| ; SFB64-NEXT: .LBB1_2: |
| ; SFB64-NEXT: mv a0, a2 |
| ; SFB64-NEXT: ret |
| ; |
| ; VTCONDOPS64-LABEL: and_select_all_ones_i64: |
| ; VTCONDOPS64: # %bb.0: |
| ; VTCONDOPS64-NEXT: vt.maskcn a1, a1, a0 |
| ; VTCONDOPS64-NEXT: li a3, -1 |
| ; VTCONDOPS64-NEXT: vt.maskc a0, a3, a0 |
| ; VTCONDOPS64-NEXT: or a0, a0, a1 |
| ; VTCONDOPS64-NEXT: and a0, a2, a0 |
| ; VTCONDOPS64-NEXT: ret |
| ; |
| ; ZICOND32-LABEL: and_select_all_ones_i64: |
| ; ZICOND32: # %bb.0: |
| ; ZICOND32-NEXT: czero.nez a2, a2, a0 |
| ; ZICOND32-NEXT: li a5, -1 |
| ; ZICOND32-NEXT: czero.eqz a5, a5, a0 |
| ; ZICOND32-NEXT: or a2, a5, a2 |
| ; ZICOND32-NEXT: czero.nez a0, a1, a0 |
| ; ZICOND32-NEXT: or a0, a5, a0 |
| ; ZICOND32-NEXT: and a0, a3, a0 |
| ; ZICOND32-NEXT: and a1, a4, a2 |
| ; ZICOND32-NEXT: ret |
| ; |
| ; ZICOND64-LABEL: and_select_all_ones_i64: |
| ; ZICOND64: # %bb.0: |
| ; ZICOND64-NEXT: czero.nez a1, a1, a0 |
| ; ZICOND64-NEXT: li a3, -1 |
| ; ZICOND64-NEXT: czero.eqz a0, a3, a0 |
| ; ZICOND64-NEXT: or a0, a0, a1 |
| ; ZICOND64-NEXT: and a0, a2, a0 |
| ; ZICOND64-NEXT: ret |
| %a = select i1 %c, i64 -1, i64 %x |
| %b = and i64 %y, %a |
| ret i64 %b |
| } |
| |
| define signext i32 @or_select_all_zeros_i32(i1 zeroext %c, i32 signext %x, i32 signext %y) { |
| ; RV32I-LABEL: or_select_all_zeros_i32: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: neg a0, a0 |
| ; RV32I-NEXT: and a0, a0, a1 |
| ; RV32I-NEXT: or a0, a2, a0 |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: or_select_all_zeros_i32: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: neg a0, a0 |
| ; RV64I-NEXT: and a0, a0, a1 |
| ; RV64I-NEXT: or a0, a2, a0 |
| ; RV64I-NEXT: ret |
| ; |
| ; SFB64-LABEL: or_select_all_zeros_i32: |
| ; SFB64: # %bb.0: |
| ; SFB64-NEXT: beqz a0, .LBB2_2 |
| ; SFB64-NEXT: # %bb.1: |
| ; SFB64-NEXT: or a2, a2, a1 |
| ; SFB64-NEXT: .LBB2_2: |
| ; SFB64-NEXT: mv a0, a2 |
| ; SFB64-NEXT: ret |
| ; |
| ; VTCONDOPS64-LABEL: or_select_all_zeros_i32: |
| ; VTCONDOPS64: # %bb.0: |
| ; VTCONDOPS64-NEXT: vt.maskc a0, a1, a0 |
| ; VTCONDOPS64-NEXT: or a0, a2, a0 |
| ; VTCONDOPS64-NEXT: ret |
| ; |
| ; ZICOND-LABEL: or_select_all_zeros_i32: |
| ; ZICOND: # %bb.0: |
| ; ZICOND-NEXT: czero.eqz a0, a1, a0 |
| ; ZICOND-NEXT: or a0, a2, a0 |
| ; ZICOND-NEXT: ret |
| %a = select i1 %c, i32 %x, i32 0 |
| %b = or i32 %y, %a |
| ret i32 %b |
| } |
| |
| define i64 @or_select_all_zeros_i64(i1 zeroext %c, i64 %x, i64 %y) { |
| ; RV32I-LABEL: or_select_all_zeros_i64: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: addi a0, a0, -1 |
| ; RV32I-NEXT: and a2, a0, a2 |
| ; RV32I-NEXT: and a0, a0, a1 |
| ; RV32I-NEXT: or a0, a0, a3 |
| ; RV32I-NEXT: or a1, a2, a4 |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: or_select_all_zeros_i64: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: addi a0, a0, -1 |
| ; RV64I-NEXT: and a0, a0, a1 |
| ; RV64I-NEXT: or a0, a0, a2 |
| ; RV64I-NEXT: ret |
| ; |
| ; SFB64-LABEL: or_select_all_zeros_i64: |
| ; SFB64: # %bb.0: |
| ; SFB64-NEXT: bnez a0, .LBB3_2 |
| ; SFB64-NEXT: # %bb.1: |
| ; SFB64-NEXT: or a2, a2, a1 |
| ; SFB64-NEXT: .LBB3_2: |
| ; SFB64-NEXT: mv a0, a2 |
| ; SFB64-NEXT: ret |
| ; |
| ; VTCONDOPS64-LABEL: or_select_all_zeros_i64: |
| ; VTCONDOPS64: # %bb.0: |
| ; VTCONDOPS64-NEXT: vt.maskcn a0, a1, a0 |
| ; VTCONDOPS64-NEXT: or a0, a0, a2 |
| ; VTCONDOPS64-NEXT: ret |
| ; |
| ; ZICOND32-LABEL: or_select_all_zeros_i64: |
| ; ZICOND32: # %bb.0: |
| ; ZICOND32-NEXT: czero.nez a2, a2, a0 |
| ; ZICOND32-NEXT: czero.nez a0, a1, a0 |
| ; ZICOND32-NEXT: or a0, a0, a3 |
| ; ZICOND32-NEXT: or a1, a2, a4 |
| ; ZICOND32-NEXT: ret |
| ; |
| ; ZICOND64-LABEL: or_select_all_zeros_i64: |
| ; ZICOND64: # %bb.0: |
| ; ZICOND64-NEXT: czero.nez a0, a1, a0 |
| ; ZICOND64-NEXT: or a0, a0, a2 |
| ; ZICOND64-NEXT: ret |
| %a = select i1 %c, i64 0, i64 %x |
| %b = or i64 %a, %y |
| ret i64 %b |
| } |
| |
| define signext i32 @xor_select_all_zeros_i32(i1 zeroext %c, i32 signext %x, i32 signext %y) { |
| ; RV32I-LABEL: xor_select_all_zeros_i32: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: addi a0, a0, -1 |
| ; RV32I-NEXT: and a0, a0, a1 |
| ; RV32I-NEXT: xor a0, a2, a0 |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: xor_select_all_zeros_i32: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: addi a0, a0, -1 |
| ; RV64I-NEXT: and a0, a0, a1 |
| ; RV64I-NEXT: xor a0, a2, a0 |
| ; RV64I-NEXT: ret |
| ; |
| ; SFB64-LABEL: xor_select_all_zeros_i32: |
| ; SFB64: # %bb.0: |
| ; SFB64-NEXT: bnez a0, .LBB4_2 |
| ; SFB64-NEXT: # %bb.1: |
| ; SFB64-NEXT: xor a2, a2, a1 |
| ; SFB64-NEXT: .LBB4_2: |
| ; SFB64-NEXT: mv a0, a2 |
| ; SFB64-NEXT: ret |
| ; |
| ; VTCONDOPS64-LABEL: xor_select_all_zeros_i32: |
| ; VTCONDOPS64: # %bb.0: |
| ; VTCONDOPS64-NEXT: vt.maskcn a0, a1, a0 |
| ; VTCONDOPS64-NEXT: xor a0, a2, a0 |
| ; VTCONDOPS64-NEXT: ret |
| ; |
| ; ZICOND-LABEL: xor_select_all_zeros_i32: |
| ; ZICOND: # %bb.0: |
| ; ZICOND-NEXT: czero.nez a0, a1, a0 |
| ; ZICOND-NEXT: xor a0, a2, a0 |
| ; ZICOND-NEXT: ret |
| %a = select i1 %c, i32 0, i32 %x |
| %b = xor i32 %y, %a |
| ret i32 %b |
| } |
| |
| define i64 @xor_select_all_zeros_i64(i1 zeroext %c, i64 %x, i64 %y) { |
| ; RV32I-LABEL: xor_select_all_zeros_i64: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: neg a0, a0 |
| ; RV32I-NEXT: and a2, a0, a2 |
| ; RV32I-NEXT: and a0, a0, a1 |
| ; RV32I-NEXT: xor a0, a0, a3 |
| ; RV32I-NEXT: xor a1, a2, a4 |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: xor_select_all_zeros_i64: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: neg a0, a0 |
| ; RV64I-NEXT: and a0, a0, a1 |
| ; RV64I-NEXT: xor a0, a0, a2 |
| ; RV64I-NEXT: ret |
| ; |
| ; SFB64-LABEL: xor_select_all_zeros_i64: |
| ; SFB64: # %bb.0: |
| ; SFB64-NEXT: beqz a0, .LBB5_2 |
| ; SFB64-NEXT: # %bb.1: |
| ; SFB64-NEXT: xor a2, a2, a1 |
| ; SFB64-NEXT: .LBB5_2: |
| ; SFB64-NEXT: mv a0, a2 |
| ; SFB64-NEXT: ret |
| ; |
| ; VTCONDOPS64-LABEL: xor_select_all_zeros_i64: |
| ; VTCONDOPS64: # %bb.0: |
| ; VTCONDOPS64-NEXT: vt.maskc a0, a1, a0 |
| ; VTCONDOPS64-NEXT: xor a0, a0, a2 |
| ; VTCONDOPS64-NEXT: ret |
| ; |
| ; ZICOND32-LABEL: xor_select_all_zeros_i64: |
| ; ZICOND32: # %bb.0: |
| ; ZICOND32-NEXT: czero.eqz a2, a2, a0 |
| ; ZICOND32-NEXT: czero.eqz a0, a1, a0 |
| ; ZICOND32-NEXT: xor a0, a0, a3 |
| ; ZICOND32-NEXT: xor a1, a2, a4 |
| ; ZICOND32-NEXT: ret |
| ; |
| ; ZICOND64-LABEL: xor_select_all_zeros_i64: |
| ; ZICOND64: # %bb.0: |
| ; ZICOND64-NEXT: czero.eqz a0, a1, a0 |
| ; ZICOND64-NEXT: xor a0, a0, a2 |
| ; ZICOND64-NEXT: ret |
| %a = select i1 %c, i64 %x, i64 0 |
| %b = xor i64 %a, %y |
| ret i64 %b |
| } |
| |
| define signext i32 @add_select_all_zeros_i32(i1 zeroext %c, i32 signext %x, i32 signext %y) { |
| ; RV32I-LABEL: add_select_all_zeros_i32: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: addi a0, a0, -1 |
| ; RV32I-NEXT: and a0, a0, a1 |
| ; RV32I-NEXT: add a0, a2, a0 |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: add_select_all_zeros_i32: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: addiw a0, a0, -1 |
| ; RV64I-NEXT: and a0, a0, a1 |
| ; RV64I-NEXT: addw a0, a2, a0 |
| ; RV64I-NEXT: ret |
| ; |
| ; SFB64-LABEL: add_select_all_zeros_i32: |
| ; SFB64: # %bb.0: |
| ; SFB64-NEXT: bnez a0, .LBB6_2 |
| ; SFB64-NEXT: # %bb.1: |
| ; SFB64-NEXT: addw a2, a2, a1 |
| ; SFB64-NEXT: .LBB6_2: |
| ; SFB64-NEXT: mv a0, a2 |
| ; SFB64-NEXT: ret |
| ; |
| ; VTCONDOPS64-LABEL: add_select_all_zeros_i32: |
| ; VTCONDOPS64: # %bb.0: |
| ; VTCONDOPS64-NEXT: vt.maskcn a0, a1, a0 |
| ; VTCONDOPS64-NEXT: addw a0, a2, a0 |
| ; VTCONDOPS64-NEXT: ret |
| ; |
| ; ZICOND32-LABEL: add_select_all_zeros_i32: |
| ; ZICOND32: # %bb.0: |
| ; ZICOND32-NEXT: czero.nez a0, a1, a0 |
| ; ZICOND32-NEXT: add a0, a2, a0 |
| ; ZICOND32-NEXT: ret |
| ; |
| ; ZICOND64-LABEL: add_select_all_zeros_i32: |
| ; ZICOND64: # %bb.0: |
| ; ZICOND64-NEXT: czero.nez a0, a1, a0 |
| ; ZICOND64-NEXT: addw a0, a2, a0 |
| ; ZICOND64-NEXT: ret |
| %a = select i1 %c, i32 0, i32 %x |
| %b = add i32 %y, %a |
| ret i32 %b |
| } |
| |
| define i64 @add_select_all_zeros_i64(i1 zeroext %c, i64 %x, i64 %y) { |
| ; RV32I-LABEL: add_select_all_zeros_i64: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: neg a0, a0 |
| ; RV32I-NEXT: and a2, a0, a2 |
| ; RV32I-NEXT: and a1, a0, a1 |
| ; RV32I-NEXT: add a0, a1, a3 |
| ; RV32I-NEXT: sltu a1, a0, a1 |
| ; RV32I-NEXT: add a2, a2, a4 |
| ; RV32I-NEXT: add a1, a2, a1 |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: add_select_all_zeros_i64: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: neg a0, a0 |
| ; RV64I-NEXT: and a0, a0, a1 |
| ; RV64I-NEXT: add a0, a0, a2 |
| ; RV64I-NEXT: ret |
| ; |
| ; SFB64-LABEL: add_select_all_zeros_i64: |
| ; SFB64: # %bb.0: |
| ; SFB64-NEXT: beqz a0, .LBB7_2 |
| ; SFB64-NEXT: # %bb.1: |
| ; SFB64-NEXT: add a2, a2, a1 |
| ; SFB64-NEXT: .LBB7_2: |
| ; SFB64-NEXT: mv a0, a2 |
| ; SFB64-NEXT: ret |
| ; |
| ; VTCONDOPS64-LABEL: add_select_all_zeros_i64: |
| ; VTCONDOPS64: # %bb.0: |
| ; VTCONDOPS64-NEXT: vt.maskc a0, a1, a0 |
| ; VTCONDOPS64-NEXT: add a0, a0, a2 |
| ; VTCONDOPS64-NEXT: ret |
| ; |
| ; ZICOND32-LABEL: add_select_all_zeros_i64: |
| ; ZICOND32: # %bb.0: |
| ; ZICOND32-NEXT: czero.eqz a2, a2, a0 |
| ; ZICOND32-NEXT: czero.eqz a1, a1, a0 |
| ; ZICOND32-NEXT: add a0, a1, a3 |
| ; ZICOND32-NEXT: sltu a1, a0, a1 |
| ; ZICOND32-NEXT: add a2, a2, a4 |
| ; ZICOND32-NEXT: add a1, a2, a1 |
| ; ZICOND32-NEXT: ret |
| ; |
| ; ZICOND64-LABEL: add_select_all_zeros_i64: |
| ; ZICOND64: # %bb.0: |
| ; ZICOND64-NEXT: czero.eqz a0, a1, a0 |
| ; ZICOND64-NEXT: add a0, a0, a2 |
| ; ZICOND64-NEXT: ret |
| %a = select i1 %c, i64 %x, i64 0 |
| %b = add i64 %a, %y |
| ret i64 %b |
| } |
| |
| define signext i32 @sub_select_all_zeros_i32(i1 zeroext %c, i32 signext %x, i32 signext %y) { |
| ; RV32I-LABEL: sub_select_all_zeros_i32: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: addi a0, a0, -1 |
| ; RV32I-NEXT: and a0, a0, a1 |
| ; RV32I-NEXT: sub a0, a2, a0 |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: sub_select_all_zeros_i32: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: addiw a0, a0, -1 |
| ; RV64I-NEXT: and a0, a0, a1 |
| ; RV64I-NEXT: subw a0, a2, a0 |
| ; RV64I-NEXT: ret |
| ; |
| ; SFB64-LABEL: sub_select_all_zeros_i32: |
| ; SFB64: # %bb.0: |
| ; SFB64-NEXT: bnez a0, .LBB8_2 |
| ; SFB64-NEXT: # %bb.1: |
| ; SFB64-NEXT: subw a2, a2, a1 |
| ; SFB64-NEXT: .LBB8_2: |
| ; SFB64-NEXT: mv a0, a2 |
| ; SFB64-NEXT: ret |
| ; |
| ; VTCONDOPS64-LABEL: sub_select_all_zeros_i32: |
| ; VTCONDOPS64: # %bb.0: |
| ; VTCONDOPS64-NEXT: vt.maskcn a0, a1, a0 |
| ; VTCONDOPS64-NEXT: subw a0, a2, a0 |
| ; VTCONDOPS64-NEXT: ret |
| ; |
| ; ZICOND32-LABEL: sub_select_all_zeros_i32: |
| ; ZICOND32: # %bb.0: |
| ; ZICOND32-NEXT: czero.nez a0, a1, a0 |
| ; ZICOND32-NEXT: sub a0, a2, a0 |
| ; ZICOND32-NEXT: ret |
| ; |
| ; ZICOND64-LABEL: sub_select_all_zeros_i32: |
| ; ZICOND64: # %bb.0: |
| ; ZICOND64-NEXT: czero.nez a0, a1, a0 |
| ; ZICOND64-NEXT: subw a0, a2, a0 |
| ; ZICOND64-NEXT: ret |
| %a = select i1 %c, i32 0, i32 %x |
| %b = sub i32 %y, %a |
| ret i32 %b |
| } |
| |
| define i64 @sub_select_all_zeros_i64(i1 zeroext %c, i64 %x, i64 %y) { |
| ; RV32I-LABEL: sub_select_all_zeros_i64: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: neg a0, a0 |
| ; RV32I-NEXT: and a2, a0, a2 |
| ; RV32I-NEXT: and a0, a0, a1 |
| ; RV32I-NEXT: sltu a1, a3, a0 |
| ; RV32I-NEXT: sub a4, a4, a2 |
| ; RV32I-NEXT: sub a1, a4, a1 |
| ; RV32I-NEXT: sub a0, a3, a0 |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: sub_select_all_zeros_i64: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: neg a0, a0 |
| ; RV64I-NEXT: and a0, a0, a1 |
| ; RV64I-NEXT: sub a0, a2, a0 |
| ; RV64I-NEXT: ret |
| ; |
| ; SFB64-LABEL: sub_select_all_zeros_i64: |
| ; SFB64: # %bb.0: |
| ; SFB64-NEXT: beqz a0, .LBB9_2 |
| ; SFB64-NEXT: # %bb.1: |
| ; SFB64-NEXT: sub a2, a2, a1 |
| ; SFB64-NEXT: .LBB9_2: |
| ; SFB64-NEXT: mv a0, a2 |
| ; SFB64-NEXT: ret |
| ; |
| ; VTCONDOPS64-LABEL: sub_select_all_zeros_i64: |
| ; VTCONDOPS64: # %bb.0: |
| ; VTCONDOPS64-NEXT: vt.maskc a0, a1, a0 |
| ; VTCONDOPS64-NEXT: sub a0, a2, a0 |
| ; VTCONDOPS64-NEXT: ret |
| ; |
| ; ZICOND32-LABEL: sub_select_all_zeros_i64: |
| ; ZICOND32: # %bb.0: |
| ; ZICOND32-NEXT: czero.eqz a2, a2, a0 |
| ; ZICOND32-NEXT: czero.eqz a0, a1, a0 |
| ; ZICOND32-NEXT: sltu a1, a3, a0 |
| ; ZICOND32-NEXT: sub a4, a4, a2 |
| ; ZICOND32-NEXT: sub a1, a4, a1 |
| ; ZICOND32-NEXT: sub a0, a3, a0 |
| ; ZICOND32-NEXT: ret |
| ; |
| ; ZICOND64-LABEL: sub_select_all_zeros_i64: |
| ; ZICOND64: # %bb.0: |
| ; ZICOND64-NEXT: czero.eqz a0, a1, a0 |
| ; ZICOND64-NEXT: sub a0, a2, a0 |
| ; ZICOND64-NEXT: ret |
| %a = select i1 %c, i64 %x, i64 0 |
| %b = sub i64 %y, %a |
| ret i64 %b |
| } |
