llvm-svn: 41831

llvm-svn: 41830

llvm-svn: 41829

llvm-svn: 41826

llvm-svn: 41824

llvm-svn: 41823

llvm-svn: 41822

llvm-svn: 41821

llvm-svn: 41820

llvm-svn: 41819

llvm-svn: 41818

llvm-svn: 41817

llvm-svn: 41816

llvm-svn: 41815

llvm-svn: 41814

llvm-svn: 41813

llvm-svn: 41812

Fix the following bug submitted by Justin Handville.

int main(int argc, char* argv[])
{
  return 0;
}

After speaking briefly with Chris, we decided this should be a front-end fix.

The fix...have Sema::GetTypeForDeclarator() do the default function/array conversion, as
I outlined in the 9/9 email on this topic.

Since this conversion is done before Sema::ParseParamDeclarator(), I thought I could
remove the conversion from Sema::ParseParamDeclarator(). Unfortunately, this didn't work.
The conversion apparently needs to be done in both places (which doesn't make sense to me).

Will investigate.

llvm-svn: 41811

llvm-svn: 41810

llvm-svn: 41809

llvm-svn: 41808

        cmpl    %eax, %ecx
        setae   %al
        movzbl  %al, %eax

instead of:

        cmpl    %eax, %ecx
        setb    %al
        xorb    $1, %al
        movzbl  %al, %eax

when using logical not of a C comparison.

llvm-svn: 41807

llvm-svn: 41806

2. Lower calls to fabs and friends to FABS nodes etc unless the function has
   internal linkage.  Before we wouldn't lower if it had a definition, which
   is incorrect.  This allows us to compile:

define double @fabs(double %f) {
        %tmp2 = tail call double @fabs( double %f )
        ret double %tmp2
}

into:

_fabs:
        fabs f1, f1
        blr 

llvm-svn: 41805

llvm-svn: 41804

llvm-svn: 41803

instruction. These are implemented with xor which will modify the conditional
code. They should be rematerialized as move instructions.

llvm-svn: 41802

class object.

llvm-svn: 41801

llvm-svn: 41800

llvm-svn: 41799

llvm-svn: 41798

that refer to direct function calls.

Modified interface of LiveVariables to only track liveness of VarDecls.
This cleans up a bunch of edge cases, and removed the bug just mentioned.

llvm-svn: 41797

llvm-svn: 41796

refers to a function.

llvm-svn: 41795

"Audit" to "Observer" and "Observe"

llvm-svn: 41794

llvm-svn: 41792

llvm-svn: 41790

llvm-svn: 41787

llvm-svn: 41786

optional.

llvm-svn: 41785