# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple armv7-gnueabihf -run-pass instruction-select \
# RUN:     -verify-machineinstrs -o - %s | FileCheck %s
---
# Test that we constrain register classes of temporary virtual registers
# defined by nested instructions built from a Dst Pattern
#
# G_FPTOSI selects to a (COPY_TO_REGCLASS (VTOSIZS SPR:$a), GPR), where
# COPY_TO_REGCLASS doesn't constrain its source register class. It exposes the
# bug as we create a tmp reg for VTOSIZS' result and don't constrain its
# register class as COPY_TO_REGCLASS' source (which is fine) nor as VTOSIZS'
# destination (which is not).
#
# https://bugs.llvm.org/show_bug.cgi?id=35965
name:            test_fptosi
legalized:       true
regBankSelected: true
body:             |
  bb.1:
    ; CHECK-LABEL: name: test_fptosi
    ; CHECK: [[COPY:%[0-9]+]]:spr = COPY $s0
    ; CHECK: [[VTOSIZS:%[0-9]+]]:spr = VTOSIZS [[COPY]], 14 /* CC::al */, $noreg
    ; CHECK: [[COPY1:%[0-9]+]]:gpr = COPY [[VTOSIZS]]
    ; CHECK: $r0 = COPY [[COPY1]]
    ; CHECK: MOVPCLR 14 /* CC::al */, $noreg, implicit $r0
    %0:fprb(s32) = COPY $s0
    %1:gprb(s32) = G_FPTOSI %0(s32)
    $r0 = COPY %1(s32)
    MOVPCLR 14, $noreg, implicit $r0
...