aboutsummaryrefslogtreecommitdiffstats
path: root/unittests/ExecutionEngine
diff options
context:
space:
mode:
authorJeffrey Yasskin <jyasskin@google.com>2010-03-04 06:50:01 +0000
committerJeffrey Yasskin <jyasskin@google.com>2010-03-04 06:50:01 +0000
commite57898ce5596a65579b6259e7d2e65c42a7e364e (patch)
tree51015254556cd1a21d31b3262157691eb2f030cc /unittests/ExecutionEngine
parent9763f709e229ff39d9f00a1086c07dfa0398b485 (diff)
downloadexternal_llvm-e57898ce5596a65579b6259e7d2e65c42a7e364e.zip
external_llvm-e57898ce5596a65579b6259e7d2e65c42a7e364e.tar.gz
external_llvm-e57898ce5596a65579b6259e7d2e65c42a7e364e.tar.bz2
Fix PR5291, in which a SmallPtrSet iterator was held across an insertion into
the set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97720 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'unittests/ExecutionEngine')
-rw-r--r--unittests/ExecutionEngine/JIT/JITTest.cpp27
1 files changed, 27 insertions, 0 deletions
diff --git a/unittests/ExecutionEngine/JIT/JITTest.cpp b/unittests/ExecutionEngine/JIT/JITTest.cpp
index 84ee0e3..168bb3c 100644
--- a/unittests/ExecutionEngine/JIT/JITTest.cpp
+++ b/unittests/ExecutionEngine/JIT/JITTest.cpp
@@ -65,6 +65,8 @@ public:
stubsAllocated = 0;
}
+ void setSizeRequired(bool Required) { SizeRequired = Required; }
+
virtual void setMemoryWritable() { Base->setMemoryWritable(); }
virtual void setMemoryExecutable() { Base->setMemoryExecutable(); }
virtual void setPoisonMemory(bool poison) { Base->setPoisonMemory(poison); }
@@ -628,6 +630,31 @@ TEST_F(JITTest, AvailableExternallyFunctionIsntCompiled) {
<< " not 7 from the IR version.";
}
+TEST_F(JITTest, NeedsExactSizeWithManyGlobals) {
+ // PR5291: When the JMM needed the exact size of function bodies before
+ // starting to emit them, the JITEmitter would modify a set while iterating
+ // over it.
+ TheJIT->DisableLazyCompilation(true);
+ RJMM->setSizeRequired(true);
+
+ LoadAssembly("@A = global i32 42 "
+ "@B = global i32* @A "
+ "@C = global i32** @B "
+ "@D = global i32*** @C "
+ "@E = global i32**** @D "
+ "@F = global i32***** @E "
+ "@G = global i32****** @F "
+ "@H = global i32******* @G "
+ "@I = global i32******** @H "
+ "define i32********* @test() { "
+ " ret i32********* @I "
+ "}");
+ Function *testIR = M->getFunction("test");
+ int32_t********* (*test)() = reinterpret_cast<int32_t*********(*)()>(
+ (intptr_t)TheJIT->getPointerToFunction(testIR));
+ EXPECT_EQ(42, *********test());
+}
+
// Converts the LLVM assembly to bitcode and returns it in a std::string. An
// empty string indicates an error.
std::string AssembleToBitcode(LLVMContext &Context, const char *Assembly) {