compiled.

When functions are compiled, they accumulate references in the JITResolver's
stub maps. This patch removes those references when the functions are
destroyed.  It's illegal to destroy a Function when any thread may still try to
call its machine code.

This patch also updates r83987 to use ValueMap instead of explicit CallbackVHs
and fixes a couple "do stuff inside assert()" bugs from r84522.

llvm-svn: 84975

Remove AllocationInst.  Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.

llvm-svn: 84969

Evan Cheng.

llvm-svn: 84967

the scale overflows pointer-sized arithmetic. This fixes PR5281.

llvm-svn: 84954

exact backedge taken count, when checking for infinite loops. This allows
it to delete loops with multiple exit conditions.

llvm-svn: 84952

llvm-svn: 84943

implements something out of Target/README.txt producing:

_foo:                                                       ## @foo
	movl	4(%esp), %eax
	movapd	LCPI1_0, %xmm0
	movapd	%xmm0, (%eax)
	ret	$4

instead of:

_foo:                                                       ## @foo
	movl	4(%esp), %eax
	movapd	_b, %xmm0
	mulpd	LCPI1_0, %xmm0
	addpd	_a, %xmm0
	movapd	%xmm0, (%eax)
	ret	$4

llvm-svn: 84942

bytes (i256).

llvm-svn: 84941

non-type-safe constant initializers.  This sort of thing happens
quite a bit for 4-byte loads out of string constants, unions, 
bitfields, and an interesting endianness check from sqlite, which
is something like this:

const int sqlite3one = 1;
# define SQLITE_BIGENDIAN    (*(char *)(&sqlite3one)==0)
# define SQLITE_LITTLEENDIAN (*(char *)(&sqlite3one)==1)
# define SQLITE_UTF16NATIVE (SQLITE_BIGENDIAN?SQLITE_UTF16BE:SQLITE_UTF16LE)

all of these macros now constant fold away.

This implements PR3152 and is based on a patch started by Eli, but heavily
modified and extended.

llvm-svn: 84936

llvm-svn: 84934

llvm-svn: 84932

llvm-svn: 84931

they don't get lost; I don't think the originator has
write access.

llvm-svn: 84928

llvm-svn: 84921

llvm-svn: 84919

does.

llvm-svn: 84916

Allow the target to select the level of anti-dependence breaking that should be performed by the post-RA scheduler. The default is none.

llvm-svn: 84911

Use 'waitpid' instead of 'wait'.  Basing Program::Wait() on 'wait()' prevents it being correct within a multithreaded context.

This address: PR 5277 (Program::Wait is unsafe to call from multiple threads).

Note: If waitpid() turns out to be non-portable, we can add more autoconf magic, or look into
another solution.

llvm-svn: 84903

gcc-4.4.

llvm-svn: 84902

llvm-svn: 84900

llvm-svn: 84898

llvm-svn: 84895

llvm-svn: 84894

llvm-svn: 84892

even when keys get RAUWed and deleted during its lifetime. By default the keys
act like WeakVHs, but users can pass a third template parameter to configure
how updates work and whether to do anything beyond updating the map on each
action.

It's also possible to automatically acquire a lock around ValueMap updates
triggered by RAUWs and deletes, to support the ExecutionEngine.

llvm-svn: 84890

llvm-svn: 84886

llvm-svn: 84885

llvm-svn: 84884

llvm-svn: 84878

Now with Clang-compatibility.

llvm-svn: 84872

llvm-svn: 84868

In the latest binutils the plugin-api.h needs this - without
it the LLVM gold plugin fails to compile.

llvm-svn: 84861

before freeing them.

llvm-svn: 84859

of the struct (!) works correctly.

llvm-svn: 84853

llvm-svn: 84851

llvm-svn: 84849

Move if-conversion before post-regalloc scheduling so the predicated instruction get scheduled properly.

llvm-svn: 84843

Load / store multiple was missing opportunites when the load / store bundles are at the end of the bb. Test case is already in, the bug is exposed by subsequent commit.

llvm-svn: 84842

 

llvm-svn: 84841

to libanalysis.  Instcombine shrinking... does this even 
make sense???

llvm-svn: 84840