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Reset NextFnNum in MachineModuleInfo::initialize 

In an env that reuses compiler instances for multiple compilations, this
omission results in non-deterministic assembly output (names of the
auto-generated labels) if the order or full set of Modules compiled
varies.

Differential Revision: https://reviews.llvm.org/D100797
This commit is contained in:
Roman Tereshin 2020-08-10 23:29:39 -07:00 committed by Daniel Sanders
parent 2218f5998b
commit 76b0ea7f2d
1 changed files with 1 additions and 0 deletions
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llvm/lib/CodeGen/MachineModuleInfo.cpp
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@ -196,6 +196,7 @@ void MMIAddrLabelMapCallbackPtr::allUsesReplacedWith(Value *V2) {
void MachineModuleInfo::initialize() { void MachineModuleInfo::initialize() {
ObjFileMMI = nullptr; ObjFileMMI = nullptr;
CurCallSite = 0; CurCallSite = 0;
NextFnNum = 0;
UsesMSVCFloatingPoint = UsesMorestackAddr = false; UsesMSVCFloatingPoint = UsesMorestackAddr = false;
HasSplitStack = HasNosplitStack = false; HasSplitStack = HasNosplitStack = false;
AddrLabelSymbols = nullptr; AddrLabelSymbols = nullptr;