llvm-svn: 30161

Use FunctionPassManager to do the job.

llvm-svn: 30160

llvm-svn: 30159

For Transforms/TailDup/if-tail-dup.ll, f.e., it produces:

_foo:
        movl 8(%esp), %eax
        movl 4(%esp), %ecx
        testl $1, %ecx
        je LBB1_2       #cond_next
LBB1_1: #cond_true
        movl $1, (%eax)
LBB1_2: #cond_next
        testl $2, %ecx
        je LBB1_4       #cond_next10
LBB1_3: #cond_true6
        movl $1, 4(%eax)
LBB1_4: #cond_next10
        testl $4, %ecx
        je LBB1_6       #cond_next18
LBB1_5: #cond_true14
        movl $1, 8(%eax)
LBB1_6: #cond_next18
        testl $8, %ecx
        je LBB1_8       #return
LBB1_7: #cond_true22
        movl $1, 12(%eax)
        ret
LBB1_8: #return
        ret

instead of:

_foo:
        movl 4(%esp), %eax
        testl $2, %eax
        sete %cl
        movl 8(%esp), %edx
        testl $1, %eax
        je LBB1_2       #cond_next
LBB1_1: #cond_true
        movl $1, (%edx)
        testb %cl, %cl
        jne LBB1_4      #cond_next10
        jmp LBB1_3      #cond_true6
LBB1_2: #cond_next
        testb %cl, %cl
        jne LBB1_4      #cond_next10
LBB1_3: #cond_true6
        movl $1, 4(%edx)
        testl $4, %eax
        je LBB1_6       #cond_next18
        jmp LBB1_5      #cond_true14
LBB1_4: #cond_next10
        testl $4, %eax
        je LBB1_6       #cond_next18
LBB1_5: #cond_true14
        movl $1, 8(%edx)
        testl $8, %eax
        je LBB1_8       #return
        jmp LBB1_7      #cond_true22
LBB1_6: #cond_next18
        testl $8, %eax
        je LBB1_8       #return
LBB1_7: #cond_true22
        movl $1, 12(%edx)
        ret
LBB1_8: #return
        ret

llvm-svn: 30158

llvm-svn: 30157

using test, which provides nice simplifications like:

-       movl %edi, %ecx
-       andl $2, %ecx
-       cmpl $0, %ecx
+       testl $2, %edi
        je LBB1_11      #cond_next90

There are a couple of dagiselemitter deficiencies that this exposes, they will
be handled later.

llvm-svn: 30156

llvm-svn: 30155

llvm-svn: 30154

llvm-svn: 30153

llvm-svn: 30152

llvm-svn: 30151

bugpoint on leopard.

llvm-svn: 30150

llvm-svn: 30149

llvm-svn: 30148

llvm-svn: 30147

llvm-svn: 30146

llvm-svn: 30145

llvm-svn: 30144

This is PR899

llvm-svn: 30143

too many phi operands when lowering a switch to branches in some cases.

llvm-svn: 30142

llvm-svn: 30141

llvm-svn: 30140

llvm-svn: 30137

llvm-svn: 30135

llvm-svn: 30134

llvm-svn: 30133

llvm-svn: 30132

llvm-svn: 30131

Add private member function getMoudle().

llvm-svn: 30130

huge honking FIXME comment. I'll address the "Live Intervals Analysis"
section soon.

llvm-svn: 30129

llvm-svn: 30128

llvm-svn: 30127

llvm-svn: 30126

llvm-svn: 30125

used to mangle symbol name, directly.

llvm-svn: 30124

Untabify.

llvm-svn: 30123

llvm-svn: 30122

llvm-svn: 30121

llvm-svn: 30120

llvm-svn: 30119