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Removing the HasBuiltinSetjmp flag and associated bits. Flagging the presence

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of exception handling builtin sjlj targets in functions turns out not to 
be necessary. Marking the intrinsic implementation in the .td file as 
defining all registers is sufficient to get the context saved properly by 
the containing function.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71743 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach
2009-05-13 23:50:53 +00:00
parent 8308e8fae0
commit 2afb3b7251
4 changed files with 1 additions and 20 deletions
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2
lib/CodeGen/PrologEpilogInserter.cpp
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@ -180,7 +180,7 @@ void PEI::calculateCalleeSavedRegisters(MachineFunction &Fn) {
std::vector<CalleeSavedInfo> CSI;
for (unsigned i = 0; CSRegs[i]; ++i) {
unsigned Reg = CSRegs[i];
if (Fn.getRegInfo().isPhysRegUsed(Reg) || Fn.doesHaveBuiltinSetjmp()) {
if (Fn.getRegInfo().isPhysRegUsed(Reg)) {
// If the reg is modified, save it!
CSI.push_back(CalleeSavedInfo(Reg, CSRegClasses[i]));
} else {