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[BitcodeReader] Don't allow INSERTVAL/EXTRACTVAL with 0 indices

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This would trigger an assertion later.

Bug found with AFL fuzz.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237494 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Filipe Cabecinhas
2015-05-16 00:33:12 +00:00
parent c5f2ba0401
commit ddf553bb8d
4 changed files with 20 additions and 4 deletions
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10
test/Bitcode/invalid.test
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@@ -127,3 +127,13 @@ RUN: not llvm-dis -disable-output %p/Inputs/invalid-GCTable-overflow.bc 2>&1 | \
RUN: FileCheck --check-prefix=GCTABLE-OFLOW %s
GCTABLE-OFLOW: Invalid ID
RUN: not llvm-dis -disable-output %p/Inputs/invalid-insert-0-indices.bc 2>&1 | \
RUN: FileCheck --check-prefix=INSERT-0-IDXS %s
INSERT-0-IDXS: INSERTVAL: Invalid instruction with 0 indices
RUN: not llvm-dis -disable-output %p/Inputs/invalid-extract-0-indices.bc 2>&1 | \
RUN: FileCheck --check-prefix=EXTRACT-0-IDXS %s
EXTRACT-0-IDXS: EXTRACTVAL: Invalid instruction with 0 indices