Assert that we aren't trying to push the same C++ temporary onto the live temporary stack twice. A little insurance against PR5867 surprising us again

llvm-svn: 92132

argument-passing doesn't have to. Fixes PR5867, where we were binding
a temporary twice in the AST and, therefore, calling its destructor
twice.

llvm-svn: 92131

cut the significand down to the desired precision *before* entering the
core divmod loop.  Makes the overall algorithm logarithmic in the exponent.

There's still a lot of room for improvement here, but this gets the
performance back down to acceptable-for-diagnostics levels, even for
long doubles.
negligible, even on long doubles.

llvm-svn: 92130

denormal, but we only want to diagnose if we underflowed to zero.  This
allows people to write constants in the denormal range.

llvm-svn: 92129

Darwin's sekrit fourth argument.  This should probably be factored to
let targets make target-specific decisions about what main() should look like.

Fixes rdar://problem/7414990
or if different platforms have radically different ideas of what they want in

llvm-svn: 92128

llvm-svn: 92127

smallest-normalized-magnitude values in a given FP semantics.
Provide an APFloat-to-string conversion which I am quite ready to admit could
be much more efficient.

llvm-svn: 92126

order should be immune to such problems.

llvm-svn: 92124

llvm-svn: 92123

llvm-svn: 92122

llvm-svn: 92121

llvm-svn: 92120

Enhance dataflow analyses to recognize branch statements in the CFG used as hooks for the initialization of condition variables.

llvm-svn: 92119

Refine codegen for visibility and hidden.  WIP.

llvm-svn: 92118

This fixes throwing exceptions inside @catch blocks nested inside outer @try blocks and also fixes jumping from an inner @finally to an outer @finally (via any relevant @catch blocks).

The code exhibiting this bug was based on code from CGObjCMac.  I believe that this bug may still be present on the Mac runtimes, although the test case in the bug contains a few GNUisms and won't compile without some minor tweaks with Apple's libobjc.

llvm-svn: 92117

llvm-svn: 92116

llvm-svn: 92115

llvm-svn: 92114

llvm-svn: 92113

Coelesce 'DoDestroy()' methods in Stmt.cpp, and modify the child_iterator returned by ForStmt to include the initializer of the condition variable.

llvm-svn: 92112

CFG tweak: in a WhileStmt, the condition variable initializer is evaluated every time the condition is checked.

llvm-svn: 92111

llvm-svn: 92110

llvm-svn: 92109

compare.  On other targets we end up with a call to memcmp because we don't
want 16 individual byte loads.  We should be able to use movups as well, but
we're failing to select the generated icmp.

llvm-svn: 92107

llvm-svn: 92106

llvm-svn: 92105

llvm-svn: 92104

llvm-svn: 92103

llvm-svn: 92102

llvm-svn: 92101

llvm-svn: 92100

Change errs() to dbgs().

llvm-svn: 92099

SDISel.  This optimization was causing simplifylibcalls to 
introduce type-unsafe nastiness.  This is the first step, I'll be 
expanding the memcmp optimizations shortly, covering things that
we really really wouldn't want simplifylibcalls to do.

llvm-svn: 92098

Change errs() to dbgs().

llvm-svn: 92097

Change errs() to dbgs().

llvm-svn: 92096

llvm-svn: 92095

Change errs() to dbgs().

llvm-svn: 92094

Change errs() to dbgs().

llvm-svn: 92093

Change errs() to dbgs().

llvm-svn: 92092

Change errs() to dbgs().

llvm-svn: 92091