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d989a16724
Summary: This fixes crashes when a BB in which an END_LOOP is to be placed is unreachable and does not have any predecessors. Fixes PR41307. Reviewers: dschuff Subscribers: yurydelendik, sbc100, jgravelle-google, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D60004 llvm-svn: 357303
28 lines
603 B
YAML
28 lines
603 B
YAML
# RUN: llc -mtriple=wasm32-unknown-unknown -run-pass wasm-cfg-stackify %s -o - | FileCheck %s
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# This tests if END_LOOP marker is placed correctly when the BB it is to be
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# placed is unreachable. Regression test for PR41307.
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# CHECK-LABEL: unreachable_test
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name: unreachable_test
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liveins:
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- { reg: '$arguments' }
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body: |
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bb.0:
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successors: %bb.1
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bb.1:
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; predecessors: %bb.0, %bb.2
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successors: %bb.2
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bb.2:
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; predecessors: %bb.1
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successors: %bb.1
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BR %bb.1, implicit-def dead $arguments
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; CHECK: bb.3
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; CHECK: END_LOOP
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bb.3:
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UNREACHABLE implicit-def $arguments
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...
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