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Set FnEnd in JITEmitter::finishFunction to point strictly to the end of function's machine code.

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Don't include memory allocated for global variables during relocations resolution.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70517 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Argyrios Kyrtzidis 2009-04-30 23:01:58 +00:00
parent 714257f5de
commit 19fee415f6
1 changed files with 6 additions and 3 deletions
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9
lib/ExecutionEngine/JIT/JITEmitter.cpp
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@ -1051,6 +1051,9 @@ bool JITEmitter::finishFunction(MachineFunction &F) {
unsigned char *FnStart = unsigned char *FnStart =
(unsigned char *)TheJIT->getPointerToGlobalIfAvailable(F.getFunction()); (unsigned char *)TheJIT->getPointerToGlobalIfAvailable(F.getFunction());
// FnEnd is the end of the function's machine code.
unsigned char *FnEnd = CurBufferPtr;
if (!Relocations.empty()) { if (!Relocations.empty()) {
CurFn = F.getFunction(); CurFn = F.getFunction();
NumRelos += Relocations.size(); NumRelos += Relocations.size();
@ -1128,9 +1131,9 @@ bool JITEmitter::finishFunction(MachineFunction &F) {
} }
} }
unsigned char *FnEnd = CurBufferPtr; // CurBufferPtr may have moved beyond FnEnd, due to memory allocation for
// global variables that were referenced in the relocations.
MemMgr->endFunctionBody(F.getFunction(), BufferBegin, FnEnd); MemMgr->endFunctionBody(F.getFunction(), BufferBegin, CurBufferPtr);
if (CurBufferPtr == BufferEnd) { if (CurBufferPtr == BufferEnd) {
// FIXME: Allocate more space, then try again. // FIXME: Allocate more space, then try again.