# 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_scalar_mul_small() {
  entry:
    ret void
  }
  define void @test_mul_overflow() { ret void }
...

---
name:            test_scalar_mul_small
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
  - { id: 4, class: _ }
  - { id: 5, class: _ }
body: |
  bb.0.entry:
    liveins: %x0, %x1, %x2, %x3
    ; CHECK-LABEL: name: test_scalar_mul_small
    ; CHECK: [[OP0:%.*]](s32) = G_ANYEXT %2(s8)
    ; CHECK: [[OP1:%.*]](s32) = G_ANYEXT %3(s8)
    ; CHECK: [[RES32:%.*]](s32) = G_MUL [[OP0]], [[OP1]]
    ; CHECK: [[RES:%.*]](s8) = G_TRUNC [[RES32]](s32)

    %0(s64) = COPY %x0
    %1(s64) = COPY %x1
    %2(s8) = G_TRUNC %0
    %3(s8) = G_TRUNC %1
    %4(s8) = G_MUL %2, %3
    %5(s64) = G_ANYEXT %2
    %x0 = COPY %5
...


---
name:            test_mul_overflow
body: |
  bb.0:
    liveins: %x0, %x1, %w2, %w3

    %0:_(s64) = COPY %x0
    %1:_(s64) = COPY %x1

    ; CHECK-LABEL: name: test_mul_overflow
    ; CHECK: %2(s64) = G_MUL %0, %1
    ; CHECK: [[HI:%[0-9]+]](s64) = G_SMULH %0, %1
    ; CHECK: [[ZERO:%[0-9]+]](s64) = G_CONSTANT i64 0
    ; CHECK: %3(s1) = G_ICMP intpred(ne), [[HI]](s64), [[ZERO]]
    %2:_(s64), %3:_(s1) = G_SMULO %0, %1

...