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25 lines
543 B
25 lines
543 B
# RUN: llc -march=hexagon -run-pass unreachable-mbb-elimination %s -o - | FileCheck %s
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---
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name: fred
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $d0
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successors: %bb.2
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%0 : doubleregs = COPY $d0
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J2_jump %bb.2, implicit-def $pc
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bb.1:
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successors: %bb.2
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A2_nop
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bb.2:
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; Make sure that the subregister from the PHI operand is preserved.
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; CHECK: %[[REG:[0-9]+]]:intregs = COPY %0.isub_lo
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; CHECK: $r0 = COPY %[[REG]]
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%1 : intregs = PHI %0.isub_lo, %bb.0, %0.isub_hi, %bb.1
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$r0 = COPY %1
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...
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