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authorMatthias Braun <matze@braunis.de>2018-10-01 17:50:52 +0000
committerMatthias Braun <matze@braunis.de>2018-10-01 17:50:52 +0000
commit5c22a0c683e2f14f30315be0af26dca0ca711924 (patch)
treed27ee91acc1df3b6d9b39ad14297bf1b53cf63df /llvm
parent5521bb8993e01d4ce34ab8182c7a9c1bf2a3a067 (diff)
MIRParser: Check that instructions only reference DILocation metadata
Diffstat (limited to 'llvm')
-rw-r--r--llvm/lib/CodeGen/MIRParser/MIParser.cpp2
-rw-r--r--llvm/test/CodeGen/MIR/X86/invalid-debug-location.mir15
2 files changed, 17 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MIRParser/MIParser.cpp b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
index 5c6a41af97a..da758da873c 100644
--- a/llvm/lib/CodeGen/MIRParser/MIParser.cpp
+++ b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
@@ -779,6 +779,8 @@ bool MIParser::parse(MachineInstr *&MI) {
MDNode *Node = nullptr;
if (parseMDNode(Node))
return true;
+ if (!isa<DILocation>(Node))
+ return error("referenced metadata is not a DILocation");
DebugLocation = DebugLoc(Node);
}
diff --git a/llvm/test/CodeGen/MIR/X86/invalid-debug-location.mir b/llvm/test/CodeGen/MIR/X86/invalid-debug-location.mir
new file mode 100644
index 00000000000..60f718ed679
--- /dev/null
+++ b/llvm/test/CodeGen/MIR/X86/invalid-debug-location.mir
@@ -0,0 +1,15 @@
+# RUN: not llc -o - %s -run-pass=none 2>&1 | FileCheck %s
+--- |
+ target triple="x86_64--"
+ define void @func() {
+ unreachable
+ }
+ !0 = !{}
+...
+---
+name: func
+body: |
+ bb.0:
+ ; CHECK: [[@LINE+1]]:27: referenced metadata is not a DILocation
+ NOOP debug-location !0
+...