llvm/test/CodeGen/RISCV/select-optimize-multiple.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=riscv32 -run-pass=finalize-isel -simplify-mir -o - %s \
# RUN:  | FileCheck -check-prefix=RV32I %s
# RUN: llc -mtriple=riscv64 -run-pass=finalize-isel -simplify-mir -o - %s \
# RUN:  | FileCheck -check-prefix=RV64I %s

# Provide dummy definitions of functions and just enough metadata to create a
# DBG_VALUE.
--- |
  define void @cmov_interleaved_bad() {
    ret void
  }
  define void @cmov_interleaved_debug_value() {
    ret void
  }
...
---
# Here we have a sequence of select instructions with a non-select instruction
# in the middle. Because the non-select depends on the result of a previous
# select, we cannot optimize the sequence to share control-flow.
name:            cmov_interleaved_bad
alignment:       4
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }
  - { id: 2, class: gpr }
  - { id: 3, class: gpr }
  - { id: 4, class: gpr }
  - { id: 5, class: gpr }
  - { id: 6, class: gpr }
  - { id: 7, class: gpr }
  - { id: 8, class: gpr }
  - { id: 9, class: gpr }
  - { id: 10, class: gpr }
liveins:
  - { reg: '$x10', virtual-reg: '%0' }
  - { reg: '$x11', virtual-reg: '%1' }
  - { reg: '$x12', virtual-reg: '%2' }
  - { reg: '$x13', virtual-reg: '%3' }
body:             |
  bb.0:
    liveins: $x10, $x11, $x12, $x13

    ; RV32I-LABEL: name: cmov_interleaved_bad
    ; RV32I: successors: %bb.1, %bb.2
    ; RV32I: liveins: $x10, $x11, $x12, $x13
    ; RV32I: [[COPY:%[0-9]+]]:gpr = COPY $x13
    ; RV32I: [[COPY1:%[0-9]+]]:gpr = COPY $x12
    ; RV32I: [[COPY2:%[0-9]+]]:gpr = COPY $x11
    ; RV32I: [[COPY3:%[0-9]+]]:gpr = COPY $x10
    ; RV32I: [[ANDI:%[0-9]+]]:gpr = ANDI [[COPY3]], 1
    ; RV32I: [[COPY4:%[0-9]+]]:gpr = COPY $x0
    ; RV32I: BNE [[ANDI]], [[COPY4]], %bb.2
    ; RV32I: .1:
    ; RV32I: .2:
    ; RV32I: successors: %bb.3, %bb.4
    ; RV32I: [[PHI:%[0-9]+]]:gpr = PHI [[COPY2]], %bb.0, [[COPY1]], %bb.1
    ; RV32I: [[ADDI:%[0-9]+]]:gpr = ADDI [[PHI]], 1
    ; RV32I: BNE [[ANDI]], [[COPY4]], %bb.4
    ; RV32I: .3:
    ; RV32I: .4:
    ; RV32I: [[PHI1:%[0-9]+]]:gpr = PHI [[COPY]], %bb.2, [[COPY1]], %bb.3
    ; RV32I: [[ADD:%[0-9]+]]:gpr = ADD [[PHI]], killed [[PHI1]]
    ; RV32I: $x10 = COPY [[ADD]]
    ; RV32I: PseudoRET implicit $x10
    ; RV64I-LABEL: name: cmov_interleaved_bad
    ; RV64I: successors: %bb.1, %bb.2
    ; RV64I: liveins: $x10, $x11, $x12, $x13
    ; RV64I: [[COPY:%[0-9]+]]:gpr = COPY $x13
    ; RV64I: [[COPY1:%[0-9]+]]:gpr = COPY $x12
    ; RV64I: [[COPY2:%[0-9]+]]:gpr = COPY $x11
    ; RV64I: [[COPY3:%[0-9]+]]:gpr = COPY $x10
    ; RV64I: [[ANDI:%[0-9]+]]:gpr = ANDI [[COPY3]], 1
    ; RV64I: [[COPY4:%[0-9]+]]:gpr = COPY $x0
    ; RV64I: BNE [[ANDI]], [[COPY4]], %bb.2
    ; RV64I: .1:
    ; RV64I: .2:
    ; RV64I: successors: %bb.3, %bb.4
    ; RV64I: [[PHI:%[0-9]+]]:gpr = PHI [[COPY2]], %bb.0, [[COPY1]], %bb.1
    ; RV64I: [[ADDI:%[0-9]+]]:gpr = ADDI [[PHI]], 1
    ; RV64I: BNE [[ANDI]], [[COPY4]], %bb.4
    ; RV64I: .3:
    ; RV64I: .4:
    ; RV64I: [[PHI1:%[0-9]+]]:gpr = PHI [[COPY]], %bb.2, [[COPY1]], %bb.3
    ; RV64I: [[ADD:%[0-9]+]]:gpr = ADD [[PHI]], killed [[PHI1]]
    ; RV64I: $x10 = COPY [[ADD]]
    ; RV64I: PseudoRET implicit $x10
    %3:gpr = COPY $x13
    %2:gpr = COPY $x12
    %1:gpr = COPY $x11
    %0:gpr = COPY $x10
    %5:gpr = ANDI %0, 1
    %6:gpr = COPY $x0
    %7:gpr = Select_GPR_Using_CC_GPR %5, %6, 22, %1, %2
    %8:gpr = ADDI %7, 1
    %9:gpr = Select_GPR_Using_CC_GPR %5, %6, 22, %3, %2
    %10:gpr = ADD %7, killed %9
    $x10 = COPY %10
    PseudoRET implicit $x10

...
---
# Demonstrate that debug info associated with selects is correctly moved to
# the tail basic block, while debug info associated with non-selects is left
# in the head basic block.
name:            cmov_interleaved_debug_value
alignment:       4
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }
  - { id: 2, class: gpr }
  - { id: 3, class: gpr }
  - { id: 4, class: gpr }
  - { id: 5, class: gpr }
  - { id: 6, class: gpr }
  - { id: 7, class: gpr }
  - { id: 8, class: gpr }
  - { id: 9, class: gpr }
  - { id: 10, class: gpr }
liveins:
  - { reg: '$x10', virtual-reg: '%0' }
  - { reg: '$x11', virtual-reg: '%1' }
  - { reg: '$x12', virtual-reg: '%2' }
  - { reg: '$x13', virtual-reg: '%3' }
body:             |
  bb.0:
    liveins: $x10, $x11, $x12, $x13

    ; RV32I-LABEL: name: cmov_interleaved_debug_value
    ; RV32I: successors: %bb.1, %bb.2
    ; RV32I: liveins: $x10, $x11, $x12, $x13
    ; RV32I: [[COPY:%[0-9]+]]:gpr = COPY $x13
    ; RV32I: [[COPY1:%[0-9]+]]:gpr = COPY $x12
    ; RV32I: [[COPY2:%[0-9]+]]:gpr = COPY $x11
    ; RV32I: [[COPY3:%[0-9]+]]:gpr = COPY $x10
    ; RV32I: [[ANDI:%[0-9]+]]:gpr = ANDI [[COPY3]], 1
    ; RV32I: [[COPY4:%[0-9]+]]:gpr = COPY $x0
    ; RV32I: [[ADDI:%[0-9]+]]:gpr = ADDI [[COPY3]], 1
    ; RV32I: DBG_VALUE [[ADDI]], $noreg
    ; RV32I: BNE [[ANDI]], [[COPY4]], %bb.2
    ; RV32I: .1:
    ; RV32I: .2:
    ; RV32I: [[PHI:%[0-9]+]]:gpr = PHI [[COPY2]], %bb.0, [[COPY1]], %bb.1
    ; RV32I: [[PHI1:%[0-9]+]]:gpr = PHI [[COPY]], %bb.0, [[COPY1]], %bb.1
    ; RV32I: DBG_VALUE [[PHI]], $noreg
    ; RV32I: DBG_VALUE [[PHI1]], $noreg
    ; RV32I: [[ADD:%[0-9]+]]:gpr = ADD [[PHI]], killed [[PHI1]]
    ; RV32I: $x10 = COPY [[ADD]]
    ; RV32I: PseudoRET implicit $x10
    ; RV64I-LABEL: name: cmov_interleaved_debug_value
    ; RV64I: successors: %bb.1, %bb.2
    ; RV64I: liveins: $x10, $x11, $x12, $x13
    ; RV64I: [[COPY:%[0-9]+]]:gpr = COPY $x13
    ; RV64I: [[COPY1:%[0-9]+]]:gpr = COPY $x12
    ; RV64I: [[COPY2:%[0-9]+]]:gpr = COPY $x11
    ; RV64I: [[COPY3:%[0-9]+]]:gpr = COPY $x10
    ; RV64I: [[ANDI:%[0-9]+]]:gpr = ANDI [[COPY3]], 1
    ; RV64I: [[COPY4:%[0-9]+]]:gpr = COPY $x0
    ; RV64I: [[ADDI:%[0-9]+]]:gpr = ADDI [[COPY3]], 1
    ; RV64I: DBG_VALUE [[ADDI]], $noreg
    ; RV64I: BNE [[ANDI]], [[COPY4]], %bb.2
    ; RV64I: .1:
    ; RV64I: .2:
    ; RV64I: [[PHI:%[0-9]+]]:gpr = PHI [[COPY2]], %bb.0, [[COPY1]], %bb.1
    ; RV64I: [[PHI1:%[0-9]+]]:gpr = PHI [[COPY]], %bb.0, [[COPY1]], %bb.1
    ; RV64I: DBG_VALUE [[PHI]], $noreg
    ; RV64I: DBG_VALUE [[PHI1]], $noreg
    ; RV64I: [[ADD:%[0-9]+]]:gpr = ADD [[PHI]], killed [[PHI1]]
    ; RV64I: $x10 = COPY [[ADD]]
    ; RV64I: PseudoRET implicit $x10
    %3:gpr = COPY $x13
    %2:gpr = COPY $x12
    %1:gpr = COPY $x11
    %0:gpr = COPY $x10
    %5:gpr = ANDI %0, 1
    %6:gpr = COPY $x0
    %7:gpr = Select_GPR_Using_CC_GPR %5, %6, 22, %1, %2
    DBG_VALUE %7, $noreg
    %8:gpr = ADDI %0, 1
    DBG_VALUE %8, $noreg
    %9:gpr = Select_GPR_Using_CC_GPR %5, %6, 22, %3, %2
    DBG_VALUE %9, $noreg
    %10:gpr = ADD %7, killed %9
    $x10 = COPY %10
    PseudoRET implicit $x10

...
---