Chris Lattner 269da7901a Two more improvements for null pointer handling: storing a null pointer ...

and passing a null pointer into a function.

For this testcase:

void %test(int** %X) {
  store int* null, int** %X
  call void %test(int** null)
  ret void
}

we now generate this:

test:
        sub %ESP, 12
        mov %EAX, DWORD PTR [%ESP + 16]
        mov DWORD PTR [%EAX], 0
        mov DWORD PTR [%ESP], 0
        call test
        add %ESP, 12
        ret

instead of this:

test:
        sub %ESP, 12
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %ECX, 0
        mov DWORD PTR [%EAX], %ECX
        mov %EAX, 0
        mov DWORD PTR [%ESP], %EAX
        call test
        add %ESP, 12
        ret

llvm-svn: 13558

2004-05-13 15:26:48 +00:00

..

Analysis

Fine grainify namespacification

2004-05-09 06:22:29 +00:00

AsmParser

Fix a memory leak. We leaked the vector holding the entries in switch tables.

2004-04-17 23:49:15 +00:00

Bytecode

Squelch compile-time warning (profile build).

2004-04-28 15:32:09 +00:00

CodeGen

Fix a really nasty bug from my changes on Monday to PHIElim. These changes

2004-05-12 21:47:57 +00:00

Debugger

"fix" a nasty race condition

2004-01-14 21:18:03 +00:00

ExecutionEngine

Generalize the strlen size_t hack, for the benefit of the other external

2004-05-01 06:42:15 +00:00

Support

Implement the new cl::PositionalEatsArgs flag, refactor code a bit

2004-05-06 22:04:31 +00:00

Target

Two more improvements for null pointer handling: storing a null pointer

2004-05-13 15:26:48 +00:00

Transforms

Do not pass in the same argument to the extracted function more than once, and

2004-05-12 16:26:18 +00:00

VMCore

Implement the AddPrototypes method

2004-05-09 04:29:57 +00:00

Makefile

CBackend is no longer here

2004-02-13 23:29:37 +00:00