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1# RUN: llc -mtriple=thumbv7em-unknown-unknown -mcpu=cortex-m7 \2# RUN: -sched-model-force-enable-intervals \3# RUN: %s -run-pass=machine-scheduler -o - 2>&1 -debug | FileCheck %s4# REQUIRES: asserts5 6# NOTE: Without the bugfix introduced in this code, the test below7# would raise the assertion "A resource is being overwritten" from8# `ResourceSegments::add` when enforcing the use of resource intervals9# via -sched-model-force-enable-intervals with the scheduling model10# for -mcpu=cortex-m7.11 12# CHECK-LABEL: *** Final schedule for %bb.0 ***13# CHECK: SU(0): %0:dpr = COPY $d014# CHECK: SU(1): %1:dpr = VABSD %0:dpr, 14, $noreg15# CHECK: SU(2): %2:dpr = VLDRD %const.0, 0, 14, $noreg :: (load (s64) from constant-pool)16# CHECK: SU(4): %3:rgpr = t2MOVi 0, 14, $noreg, $noreg17# CHECK: SU(3): VCMPD %1:dpr, %2:dpr, 14, $noreg, implicit-def $fpscr_nzcv, implicit $fpscr_rm18# CHECK: SU(5): $r0 = COPY %3:rgpr19---20name: test21tracksRegLiveness: true22constants:23 - id: 024 value: double 0x7FF000000000000025body: |26 bb.0:27 liveins: $d028 29 %0:dpr = COPY $d030 %1:dpr = VABSD %0, 14 /* CC::al */, $noreg31 %2:dpr = VLDRD %const.0, 0, 14 /* CC::al */, $noreg :: (load (s64) from constant-pool)32 VCMPD %1, %2, 14 /* CC::al */, $noreg, implicit-def $fpscr_nzcv, implicit $fpscr_rm33 %4:rgpr = t2MOVi 0, 14 /* CC::al */, $noreg, $noreg34 $r0 = COPY %435 tBX_RET 14 /* CC::al */, $noreg, implicit killed $r036 37...38