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31 lines
978 B
31 lines
978 B
# RUN: llc -march=amdgcn -run-pass rename-independent-subregs -o - %s | FileCheck %s
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--- |
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define void @test0() { ret void }
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...
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---
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# In the test below we have two independent def+use pairs of subregister1 which
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# can be moved to a new virtual register. The third def of sub1 however is used
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# in combination with sub0 and needs to stay with the original vreg.
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# CHECK-LABEL: name: test0
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# CHECK: S_NOP 0, implicit-def undef %0:sub0
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# CHECK: S_NOP 0, implicit-def undef %2:sub1
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# CHECK: S_NOP 0, implicit %2:sub1
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# CHECK: S_NOP 0, implicit-def undef %1:sub1
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# CHECK: S_NOP 0, implicit %1:sub1
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# CHECK: S_NOP 0, implicit-def %0:sub1
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# CHECK: S_NOP 0, implicit %0
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name: test0
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isSSA: true
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registers:
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- { id: 0, class: sreg_128 }
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body: |
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bb.0:
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S_NOP 0, implicit-def undef %0:sub0
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S_NOP 0, implicit-def %0:sub1
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S_NOP 0, implicit %0:sub1
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S_NOP 0, implicit-def %0:sub1
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S_NOP 0, implicit %0:sub1
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S_NOP 0, implicit-def %0:sub1
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S_NOP 0, implicit %0
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...
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