38 lines
1.4 KiB
Text
38 lines
1.4 KiB
Text
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# RUN: llc -mtriple=thumbv7em-unknown-unknown -mcpu=cortex-m7 \
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# RUN: -sched-model-force-enable-intervals \
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# RUN: %s -run-pass=machine-scheduler -o - 2>&1 -debug | FileCheck %s
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# REQUIRES: arm-registered-target, asserts
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# NOTE: Without the bugfix introduced in this code, the test below
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# would raise the assertion "A resource is being overwritten" from
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# `ResourceSegments::add` when enforcing the use of resource intervals
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# via -sched-model-force-enable-intervals with the scheduling model
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# for -mcpu=cortex-m7.
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# CHECK-LABEL: *** Final schedule for %bb.0 ***
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# CHECK: SU(0): %0:dpr = COPY $d0
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# CHECK: SU(1): %1:dpr = VABSD %0:dpr, 14, $noreg
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# CHECK: SU(2): %2:dpr = VLDRD %const.0, 0, 14, $noreg :: (load (s64) from constant-pool)
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# CHECK: SU(4): %3:rgpr = t2MOVi 0, 14, $noreg, $noreg
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# CHECK: SU(3): VCMPD %1:dpr, %2:dpr, 14, $noreg, implicit-def $fpscr_nzcv
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# CHECK: SU(5): $r0 = COPY %3:rgpr
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---
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name: test
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tracksRegLiveness: true
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constants:
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- id: 0
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value: double 0x7FF0000000000000
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body: |
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bb.0:
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liveins: $d0
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%0:dpr = COPY $d0
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%1:dpr = VABSD %0, 14 /* CC::al */, $noreg
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%2:dpr = VLDRD %const.0, 0, 14 /* CC::al */, $noreg :: (load (s64) from constant-pool)
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VCMPD %1, %2, 14 /* CC::al */, $noreg, implicit-def $fpscr_nzcv
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%4:rgpr = t2MOVi 0, 14 /* CC::al */, $noreg, $noreg
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$r0 = COPY %4
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tBX_RET 14 /* CC::al */, $noreg, implicit killed $r0
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...
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