diff options
Diffstat (limited to 'lib/CodeGen/StackMaps.cpp')
-rw-r--r-- | lib/CodeGen/StackMaps.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/StackMaps.cpp b/lib/CodeGen/StackMaps.cpp index 1dc76d5c6a..d70e6b3044 100644 --- a/lib/CodeGen/StackMaps.cpp +++ b/lib/CodeGen/StackMaps.cpp @@ -207,7 +207,10 @@ void StackMaps::recordStackMapOpers(const MachineInstr &MI, uint64_t ID, // Move large constants into the constant pool. for (LocationVec::iterator I = Locations.begin(), E = Locations.end(); I != E; ++I) { - if (I->LocType == Location::Constant && (I->Offset & ~0xFFFFFFFFULL)) { + // Constants are encoded as sign-extended integers. + // -1 is directly encoded as .long 0xFFFFFFFF with no constant pool. + if (I->LocType == Location::Constant && + ((I->Offset + (int64_t(1)<<31)) >> 32) != 0) { I->LocType = Location::ConstantIndex; I->Offset = ConstPool.getConstantIndex(I->Offset); } |