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33946d17b3
When tail duplication estimates a size of tail it uses instruction count. Account for a number of instrictions in a bundle too. Differential Revision: https://reviews.llvm.org/D72783
39 lines
869 B
YAML
39 lines
869 B
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -march=amdgcn -run-pass=block-placement -tail-dup-placement-threshold=2 -verify-machineinstrs -o - %s | FileCheck -check-prefix=GCN %s
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# Check that tail duplication correctly counts instructions in a bundle.
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# The bundle below shall not be duplicated.
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---
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name: tail_dup_bundle
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body: |
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; GCN-LABEL: name: tail_dup_bundle
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; GCN: bb.0:
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; GCN: successors: %bb.2(0x80000000)
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; GCN: bb.2:
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; GCN: BUNDLE {
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; GCN: S_NOP 0
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; GCN: S_NOP 0
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; GCN: }
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; GCN: S_ENDPGM 0
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; GCN: bb.1:
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; GCN: successors: %bb.2(0x80000000)
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; GCN: S_BRANCH %bb.2
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bb.0:
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successors: %bb.2(0x80000000)
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S_BRANCH %bb.2
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bb.1:
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successors: %bb.2(0x80000000)
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bb.2:
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BUNDLE {
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S_NOP 0
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S_NOP 0
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}
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S_ENDPGM 0
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...
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