test/CodeGen/AArch64/GlobalISel/legalize-combines.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -run-pass=legalizer -global-isel %s -o - | FileCheck %s

--- |
  target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
  target triple = "aarch64--"
  define void @test_combines_2() { ret void }
  define void @test_combines_3() { ret void }
  define void @test_combines_4() { ret void }
  define void @test_combines_5() { ret void }
  define void @test_combines_6() { ret void }
...

---
name:            test_combines_2
body: |
  bb.0:
    liveins: %w0

    ; Here the types don't match.
    ; CHECK-LABEL: name: test_combines_2
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY %w0
    ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[COPY]]
    ; CHECK: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[COPY]](s32), [[ADD]](s32)
    ; CHECK: [[EXTRACT:%[0-9]+]]:_(s1) = G_EXTRACT [[MV]](s64), 0
    ; CHECK: [[EXTRACT1:%[0-9]+]]:_(s64) = G_EXTRACT [[MV]](s64), 0
    %0:_(s32) = COPY %w0

    %1:_(s32) = G_ADD %0, %0
    %2:_(s64) = G_MERGE_VALUES %0, %1
    %3:_(s1) = G_EXTRACT %2, 0
    %4:_(s64) = G_EXTRACT %2, 0
...

---
name:            test_combines_3
body: |
  bb.0:
    liveins: %w0

    ; CHECK-LABEL: name: test_combines_3
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY %w0
    ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[COPY]]
    ; CHECK: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[ADD]]
    %0:_(s32) = COPY %w0

    %1:_(s32) = G_ADD %0, %0
    %2:_(s64) = G_MERGE_VALUES %0, %1
    %3:_(s32), %4:_(s32) = G_UNMERGE_VALUES %2
    %5:_(s32) = G_ADD %3, %4
...

---
name:            test_combines_4
body: |
  bb.0:
    liveins: %x0

    ; CHECK-LABEL: name: test_combines_4
    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY %x0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY [[COPY]](s64)
    ; CHECK: [[ADD:%[0-9]+]]:_(s64) = G_ADD [[COPY1]], [[COPY1]]
    %0:_(s64) = COPY %x0

    %1:_(s128) = G_MERGE_VALUES %0, %0
    %2:_(s64) = G_EXTRACT %1, 0
    %3:_(s64) = G_ADD %2, %2
...

---
name:            test_combines_5
body: |
  bb.0:
    liveins: %w0

    ; CHECK-LABEL: name: test_combines_5
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY %w0
    ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[COPY]]
    ; CHECK: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[ADD]]
    %0:_(s32) = COPY %w0

    %1:_(s32) = G_ADD %0, %0
    %2:_(s64) = G_MERGE_VALUES %0, %1
    %3:_(s32), %4:_(s32) = G_UNMERGE_VALUES %2
    %5:_(s32) = G_ADD %3, %4
...

---
name:            test_combines_6
body: |
  bb.0:
    liveins: %w0

    ; Check that we replace all the uses of a G_EXTRACT.
    ; CHECK-LABEL: name: test_combines_6
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY %w0
    ; CHECK: [[MUL:%[0-9]+]]:_(s32) = G_MUL [[COPY]], [[COPY]]
    ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[MUL]]
    %0:_(s32) = COPY %w0

    %1:_(s32) = G_MERGE_VALUES %0
    %2:_(s32) = G_UNMERGE_VALUES %1
    %3:_(s32) = G_MUL %2, %2
    %4:_(s32) = G_ADD %2, %3
...