; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=riscv32 -verify-machineinstrs -mcpu=syntacore-scr1-max \ ; RUN: -O1 -riscv-enable-machine-combiner=true -riscv-force-machine-combiner-strategy=local < %s | \ ; RUN: FileCheck %s --check-prefixes=CHECK_LOCAL_SCR1 ; RUN: llc -mtriple=riscv32 -verify-machineinstrs -mcpu=syntacore-scr1-max \ ; RUN: -O1 -riscv-enable-machine-combiner=true -riscv-force-machine-combiner-strategy=min-instr < %s | \ ; RUN: FileCheck %s --check-prefixes=CHECK_GLOBAL_SCR1 ; RUN: llc -mtriple=riscv64 -verify-machineinstrs -mcpu=sifive-u74 \ ; RUN: -O1 -riscv-enable-machine-combiner=true -riscv-force-machine-combiner-strategy=local < %s | \ ; RUN: FileCheck %s --check-prefixes=CHECK_LOCAL_SIFIVE_U74 ; RUN: llc -mtriple=riscv64 -verify-machineinstrs -mcpu=sifive-u74 \ ; RUN: -O1 -riscv-enable-machine-combiner=true -riscv-force-machine-combiner-strategy=min-instr < %s | \ ; RUN: FileCheck %s --check-prefixes=CHECK_GLOBAL_SIFIVE_U74 define i32 @test_local_strategy(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5) { ; CHECK_LOCAL_SCR1-LABEL: test_local_strategy: ; CHECK_LOCAL_SCR1: # %bb.0: # %entry ; CHECK_LOCAL_SCR1-NEXT: div a0, a0, a1 ; CHECK_LOCAL_SCR1-NEXT: sub a0, a0, a2 ; CHECK_LOCAL_SCR1-NEXT: beqz a0, .LBB0_2 ; CHECK_LOCAL_SCR1-NEXT: # %bb.1: # %b2 ; CHECK_LOCAL_SCR1-NEXT: ret ; CHECK_LOCAL_SCR1-NEXT: .LBB0_2: # %b1 ; CHECK_LOCAL_SCR1-NEXT: add a3, a3, a4 ; CHECK_LOCAL_SCR1-NEXT: add a0, a0, a5 ; CHECK_LOCAL_SCR1-NEXT: add a0, a0, a3 ; CHECK_LOCAL_SCR1-NEXT: ret ; ; CHECK_GLOBAL_SCR1-LABEL: test_local_strategy: ; CHECK_GLOBAL_SCR1: # %bb.0: # %entry ; CHECK_GLOBAL_SCR1-NEXT: div a0, a0, a1 ; CHECK_GLOBAL_SCR1-NEXT: sub a0, a0, a2 ; CHECK_GLOBAL_SCR1-NEXT: beqz a0, .LBB0_2 ; CHECK_GLOBAL_SCR1-NEXT: # %bb.1: # %b2 ; CHECK_GLOBAL_SCR1-NEXT: ret ; CHECK_GLOBAL_SCR1-NEXT: .LBB0_2: # %b1 ; CHECK_GLOBAL_SCR1-NEXT: add a3, a3, a4 ; CHECK_GLOBAL_SCR1-NEXT: add a3, a3, a5 ; CHECK_GLOBAL_SCR1-NEXT: add a0, a0, a3 ; CHECK_GLOBAL_SCR1-NEXT: ret ; ; CHECK_LOCAL_SIFIVE_U74-LABEL: test_local_strategy: ; CHECK_LOCAL_SIFIVE_U74: # %bb.0: # %entry ; CHECK_LOCAL_SIFIVE_U74-NEXT: divw a0, a0, a1 ; CHECK_LOCAL_SIFIVE_U74-NEXT: subw a0, a0, a2 ; CHECK_LOCAL_SIFIVE_U74-NEXT: beqz a0, .LBB0_2 ; CHECK_LOCAL_SIFIVE_U74-NEXT: # %bb.1: # %b2 ; CHECK_LOCAL_SIFIVE_U74-NEXT: ret ; CHECK_LOCAL_SIFIVE_U74-NEXT: .LBB0_2: # %b1 ; CHECK_LOCAL_SIFIVE_U74-NEXT: add a3, a3, a4 ; CHECK_LOCAL_SIFIVE_U74-NEXT: add a0, a0, a5 ; CHECK_LOCAL_SIFIVE_U74-NEXT: addw a0, a0, a3 ; CHECK_LOCAL_SIFIVE_U74-NEXT: ret ; ; CHECK_GLOBAL_SIFIVE_U74-LABEL: test_local_strategy: ; CHECK_GLOBAL_SIFIVE_U74: # %bb.0: # %entry ; CHECK_GLOBAL_SIFIVE_U74-NEXT: divw a0, a0, a1 ; CHECK_GLOBAL_SIFIVE_U74-NEXT: subw a0, a0, a2 ; CHECK_GLOBAL_SIFIVE_U74-NEXT: beqz a0, .LBB0_2 ; CHECK_GLOBAL_SIFIVE_U74-NEXT: # %bb.1: # %b2 ; CHECK_GLOBAL_SIFIVE_U74-NEXT: ret ; CHECK_GLOBAL_SIFIVE_U74-NEXT: .LBB0_2: # %b1 ; CHECK_GLOBAL_SIFIVE_U74-NEXT: add a3, a3, a4 ; CHECK_GLOBAL_SIFIVE_U74-NEXT: add a3, a3, a5 ; CHECK_GLOBAL_SIFIVE_U74-NEXT: addw a0, a0, a3 ; CHECK_GLOBAL_SIFIVE_U74-NEXT: ret entry: %div = sdiv i32 %a0, %a1 %sub0 = sub i32 %div, %a2 %cmp = icmp eq i32 %sub0, 0 br i1 %cmp, label %b1, label %b2 b1: %sub1 = add i32 %a3, %a4 %sub2 = add i32 %a5, %sub1 %sub3 = add i32 %sub2, %sub0 ret i32 %sub3 b2: ret i32 %sub0 }