llvm-svn: 22081

llvm-svn: 22080

can't patch it up for c++ (works in C though)

llvm-svn: 22079

llvm-svn: 22078

llvm-svn: 22077

llvm-svn: 22076

llvm-svn: 22075

simplify-libcalls pass (pass now computes it without a call to ffsll).

llvm-svn: 22074

llvm-svn: 22073

previous revision.

llvm-svn: 22072

llvm-svn: 22071

not reason to include it for other front ends.

llvm-svn: 22070

ffs(x) -> (x == 0 ? 0 : llvm.cttz(0)+1)

llvm-svn: 22069

ffs(x) -> (x == 0 ? 0 : 1+llvm.cttz(x))

llvm-svn: 22068

in the LLVM code generator sense (they are calls).  Don't mark them as such,
which fixes the regressions on the ppc tester last night

llvm-svn: 22065

llvm-svn: 22064

llvm-svn: 22061

llvm-svn: 22060

llvm-svn: 22059

for one of the values that it defines!

llvm-svn: 22058

* Use C++ style casts, not C style casts
* Abstract base classes should have virtual destructor.

llvm-svn: 22057

llvm-svn: 22056

llvm-svn: 22055

llvm-svn: 22054

llvm-svn: 22053

llvm-svn: 22052

llvm-svn: 22051

llvm-svn: 22050

llvm-svn: 22049

llvm-svn: 22048

        add %ESP, 20
        jmp %EDX  # TAIL CALL

instead of:
        add %ESP, -8
        add %ESP, 28
        jmp %EDX  # TAIL CALL

llvm-svn: 22047

tail calls.

llvm-svn: 22046

llvm-svn: 22045

long %bar(long %X) {
  %Y = mul long %X, 4294967297
  ret long %Y
}

to this:

l1_bar:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %EDX, %EAX
        add %EDX, DWORD PTR [%ESP + 8]
        ret

instead of:

l1_bar:
        mov %ECX, DWORD PTR [%ESP + 4]
        mov %EDX, 1
        mov %EAX, %ECX
        mul %EDX
        add %EDX, %ECX
        add %EDX, DWORD PTR [%ESP + 8]
        mov %EAX, %ECX
        ret

llvm-svn: 22044

sorta-pseudo-instruction

llvm-svn: 22042

terminator instructions before the 'ret' in case the target has a
multi-instruction return sequence.

llvm-svn: 22041

llvm-svn: 22040

the correct thing.

llvm-svn: 22039

adjustment.  If so, we merge the adjustment into the existing one.  This
allows us to generate:

caller2:
        sub %ESP, 12
        mov DWORD PTR [%ESP], 0
        mov %EAX, 1234567890
        mov %EDX, 0
        call func2
        add %ESP, 8
        ret 4

intead of:

caller2:
        sub %ESP, 12
        mov DWORD PTR [%ESP], 0
        mov %EAX, 1234567890
        mov %EDX, 0
        call func2
        sub %ESP, 4
        add %ESP, 12
        ret 4

for X86/fast-cc-merge-stack-adj.ll

llvm-svn: 22038

llvm-svn: 22037