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 %s
4 # REQUIRES: arm-registered-target, asserts
6 # NOTE: Without the bugfix introduced in this code, the test below
7 # would raise the assertion "A resource is being overwritten" from
8 # `ResourceSegments::add` when enforcing the use of resource intervals
9 # via -sched-model-force-enable-intervals with the scheduling model
10 # for -mcpu=cortex-m7.
12 # CHECK-LABEL: *** Final schedule for %bb.0 ***
13 # CHECK: SU(0): %0:dpr = COPY $d0
14 # CHECK: SU(1): %1:dpr = VABSD %0:dpr, 14, $noreg
15 # 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, $noreg
17 # CHECK: SU(3): VCMPD %1:dpr, %2:dpr, 14, $noreg, implicit-def $fpscr_nzcv
18 # CHECK: SU(5): $r0 = COPY %3:rgpr
21 tracksRegLiveness: true
24 value: double 0x7FF0000000000000
30 %1:dpr = VABSD %0, 14 /* CC::al */, $noreg
31 %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
33 %4:rgpr = t2MOVi 0, 14 /* CC::al */, $noreg, $noreg
35 tBX_RET 14 /* CC::al */, $noreg, implicit killed $r0