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Enable EHABI by default

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After all hard work to implement the EHABI and with the test-suite
passing, it's time to turn it on by default and allow users to
disable it as a work-around while we fix the eventual bugs that show
up.

This commit also remove the -arm-enable-ehabi-descriptors, since we
want the tables to be printed every time the EHABI is turned on
for non-Darwin ARM targets.

Although MCJIT EHABI is not working yet (needs linking with the right
libraries), this commit also fixes some relocations on MCJIT regarding
the EH tables/lib calls, and update some tests to avoid using EH tables
when none are needed.

The EH tests in the test-suite that were previously disabled on ARM
now pass with these changes, so a follow-up commit on the test-suite
will re-enable them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200388 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Renato Golin
2014-01-29 11:50:56 +00:00
parent b04ddad8ea
commit 3fca788967
23 changed files with 64 additions and 59 deletions
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38
lib/CodeGen/AsmPrinter/ARMException.cpp
View File

@@ -36,12 +36,6 @@
#include "llvm/Target/TargetRegisterInfo.h"
using namespace llvm;
static cl::opt<bool>
EnableARMEHABIDescriptors("arm-enable-ehabi-descriptors", cl::Hidden,
cl::desc("Generate ARM EHABI tables with unwinding descriptors"),
cl::init(false));
ARMException::ARMException(AsmPrinter *A)
: DwarfException(A) {}
@@ -74,25 +68,23 @@ void ARMException::endFunction(const MachineFunction *) {
Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_end",
Asm->getFunctionNumber()));
if (EnableARMEHABIDescriptors) {
// Map all labels and get rid of any dead landing pads.
MMI->TidyLandingPads();
// Map all labels and get rid of any dead landing pads.
MMI->TidyLandingPads();
if (!MMI->getLandingPads().empty()) {
// Emit references to personality.
if (const Function * Personality =
MMI->getPersonalities()[MMI->getPersonalityIndex()]) {
MCSymbol *PerSym = Asm->getSymbol(Personality);
Asm->OutStreamer.EmitSymbolAttribute(PerSym, MCSA_Global);
ATS.emitPersonality(PerSym);
}
// Emit .handlerdata directive.
ATS.emitHandlerData();
// Emit actual exception table
EmitExceptionTable();
if (!MMI->getLandingPads().empty()) {
// Emit references to personality.
if (const Function * Personality =
MMI->getPersonalities()[MMI->getPersonalityIndex()]) {
MCSymbol *PerSym = Asm->getSymbol(Personality);
Asm->OutStreamer.EmitSymbolAttribute(PerSym, MCSA_Global);
ATS.emitPersonality(PerSym);
}
// Emit .handlerdata directive.
ATS.emitHandlerData();
// Emit actual exception table
EmitExceptionTable();
}
}