llvm-svn: 30903

It's turning:
        movl -24(%ebp), %esp
        subl $16, %esp
        movl -24(%ebp), %ecx
into
        movl -24(%ebp), %esp
        subl $16, %esp
        movl %esp, (%esp)

llvm-svn: 30902

the stack slot.  This fixes PR943.

llvm-svn: 30898

llvm-svn: 30889

llvm-svn: 30884

llvm-svn: 30883

llvm-svn: 30880

llvm-svn: 30878

As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff.

llvm-svn: 30873

llvm-svn: 30869

llvm-svn: 30866

llvm-svn: 30861

llvm-svn: 30860

llvm-svn: 30857

llvm-svn: 30853

llvm-svn: 30844

if TF depends on A and B, and A depends on B, TF just needs to depend on
A.  With Jim's alias-analysis stuff enabled, this compiles the testcase in
PR892 into:

__Z4test3Val:
        subl $44, %esp
        call L__Z3foov$stub
        movl %edx, 28(%esp)
        movl %eax, 32(%esp)
        movl %eax, 24(%esp)
        movl %edx, 36(%esp)
        movl 52(%esp), %ecx
        movl %ecx, 4(%esp)
        movl %eax, 8(%esp)
        movl %edx, 12(%esp)
        movl 48(%esp), %eax
        movl %eax, (%esp)
        call L__Z3bar3ValS_$stub
        addl $44, %esp
        ret

instead of:

__Z4test3Val:
        subl $44, %esp
        call L__Z3foov$stub
        movl %eax, 24(%esp)
        movl %edx, 28(%esp)
        movl 24(%esp), %eax
        movl %eax, 32(%esp)
        movl 28(%esp), %eax
        movl %eax, 36(%esp)
        movl 32(%esp), %eax
        movl 36(%esp), %ecx
        movl 52(%esp), %edx
        movl %edx, 4(%esp)
        movl %eax, 8(%esp)
        movl %ecx, 12(%esp)
        movl 48(%esp), %eax
        movl %eax, (%esp)
        call L__Z3bar3ValS_$stub
        addl $44, %esp
        ret

llvm-svn: 30821

llvm-svn: 30818

part was always forced to be sextload, even when we needed an zextload.

llvm-svn: 30782

llvm-svn: 30780

section.  This will fix alpha when Andrew implements
AlphaTargetMachine::getTargetLowering().

llvm-svn: 30779

llvm-svn: 30776

print the LLVM BB label.

llvm-svn: 30775

long long foo(long long X) {
  return (long long)(signed char)(int)X;
}

Instead of:

_foo:
        extsb r2, r4
        srawi r3, r4, 31
        mr r4, r2
        blr

we now produce:

_foo:
        extsb r4, r4
        srawi r3, r4, 31
        blr

This fixes a miscompilation in ConstantFolding.cpp.

llvm-svn: 30768

instructions.

llvm-svn: 30760

llvm-svn: 30759

llvm-svn: 30758

llvm-svn: 30757

llvm-svn: 30753

allowing label differences to work.  This fixes CodeGen/X86/pic_jumptable.ll

llvm-svn: 30744

llvm-svn: 30742

llvm-svn: 30736

llvm-svn: 30727

llvm-svn: 30721

llvm-svn: 30720

llvm-svn: 30715

extra operand to LOADX to specify the exact value extension type.

llvm-svn: 30714

is needed to support targets where {|} aren't special symbols.

llvm-svn: 30712

llvm-svn: 30711

llvm-svn: 30709