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annotate test/CodeGen/SystemZ/lower-copy-undef-src.mir @ 128:c347d3398279 default tip

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fix
author mir3636
date Wed, 06 Dec 2017 14:37:17 +0900
parents 803732b1fca8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -run-pass=postrapseudos -o - %s | FileCheck %s
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2 #
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3 # Test that a COPY with an undef source operand gets handled like an identity
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4 # copy rather than lowered into a target instruction with the undef flag
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5 # dropped.
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6 ---
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7 # CHECK-LABEL: name: undef_copy
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8 # CHECK: %r13d = KILL undef %r0d, implicit killed %r12q, implicit-def %r12q
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9 name: undef_copy
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10 tracksRegLiveness: true
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11 body: |
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12 bb.0:
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13 liveins: %r12q
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14 %r13d = COPY undef %r0d, implicit killed %r12q, implicit-def %r12q