test/CodeGen/AArch64/GlobalISel/select-insert-extract.mir

# RUN: llc -mtriple=aarch64-- -run-pass=instruction-select -verify-machineinstrs -global-isel %s -o - | FileCheck %s

---
# CHECK-LABEL: name: insert_gprs
name:            insert_gprs
legalized:       true
regBankSelected: true

body:             |
  bb.0:
    liveins: %x0

    %0:gpr(s32) = COPY %w0

    %1:gpr(s64) = G_IMPLICIT_DEF

    ; CHECK:  body:
    ; CHECK: [[TMP:%[0-9]+]]:gpr64 = SUBREG_TO_REG 0, %0, %subreg.sub_32
    ; CHECK: %2:gpr64 = BFMXri %1, [[TMP]], 0, 31
    %2:gpr(s64) = G_INSERT %1, %0, 0

    ; CHECK: [[TMP:%[0-9]+]]:gpr64 = SUBREG_TO_REG 0, %0, %subreg.sub_32
    ; CHECK: %3:gpr64 = BFMXri %1, [[TMP]], 51, 31
    %3:gpr(s64) = G_INSERT %1, %0, 13

    %x0 = COPY %2
    %x1 = COPY %3
...


---
# CHECK-LABEL: name: extract_gprs
name:            extract_gprs
legalized:       true
regBankSelected: true

body:             |
  bb.0:
    liveins: %x0

    %0:gpr(s64) = COPY %x0

    ; CHECK:  body:
    ; CHECK: [[TMP:%[0-9]+]]:gpr64 = UBFMXri %0, 0, 31
    ; CHECK: %1:gpr32 = COPY [[TMP]].sub_32
    %1:gpr(s32) = G_EXTRACT %0, 0

    ; CHECK: [[TMP:%[0-9]+]]:gpr64 = UBFMXri %0, 13, 44
    ; CHECK: %2:gpr32 = COPY [[TMP]].sub_32
    %2:gpr(s32) = G_EXTRACT %0, 13

    %w0 = COPY %1
    %w1 = COPY %2
...