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62e99e136f
The original version of the code in XRayInstrumentation.cpp assumed that functions may not have empty machine basic blocks (or that the first one couldn't be). This change addresses that by special-casing that specific situation. We provide two .mir test-cases to make sure we're handling this appropriately. Fixes llvm.org/PR31424. Reviewers: chandlerc Subscribers: varno, llvm-commits Differential Revision: https://reviews.llvm.org/D27913 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290091 91177308-0d34-0410-b5e6-96231b3b80d8
14 lines
286 B
YAML
14 lines
286 B
YAML
# RUN: llc -run-pass xray-instrumentation -mtriple=x86_64-unknown-linux-gnu -o - %s | FileCheck %s
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#
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# Make sure we can handle empty functions.
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---
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name: empty
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tracksRegLiveness: true
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liveins:
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- { reg: '%edi'}
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body: |
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bb.0:
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; CHECK-NOT: PATCHABLE_FUNCTION_ENTER
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...
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