With sse3 and when the source is a load or has multiple uses, favors movddup over shuffp*, pshufd, etc. Without sse3 or when the source is from a register, make use of movlhps

llvm-svn: 56620

meaning sse_regparm (i.e. float/double values go
in XMM0 instead of ST0).  Update documentation
to reflect reality.

llvm-svn: 56619

llvm-svn: 56608

llvm-svn: 56607

llvm-svn: 56600

Fix patterns for SSE4.1 move and sign extend instructions. Also add instructions which fold VZEXT_MOVL and VZEXT_LOAD.

llvm-svn: 56594

llvm-svn: 56593

llvm-svn: 56588

llvm-svn: 56585

llvm-svn: 56582

llvm-svn: 56580

llvm-svn: 56575

llvm-svn: 56574

llvm-svn: 56573

llvm-svn: 56572

llvm-svn: 56568

llvm-svn: 56527

Properly handle 'm' inline asm constraints. If a GV is being selected for the addressing mode, it requires the same logic for PIC relative addressing, etc.

llvm-svn: 56526

Do not check isDeclaration() in hasNote(). It is clients' responsibility.

llvm-svn: 56524

Function Notes also. Function notes are stored at index ~0.

llvm-svn: 56511

object. This will be needed to support debug info.

llvm-svn: 56508

instruction opcodes are now numbered. No functionality change.

llvm-svn: 56497

llvm-svn: 56495

X86ISelDAGToDAG.cpp and into X86InstrInfo.cpp. This will allow
it to be reused by FastISel.

llvm-svn: 56494

llvm-svn: 56483

llvm-svn: 56477

llvm-svn: 56475

default.

llvm-svn: 56471

llvm-svn: 56469

llvm-svn: 56453

Change the calling convention used when tail call optimization is enabled from CC_X86_32_TailCall to CC_X86_32_FastCC.

llvm-svn: 56436

llvm-svn: 56419

sarl    $3, %ecx

instead of:

movl    $3, %ecx
sarl    %cl, %edx

This shrinks fast isel 176.gcc by about 2000 instructions (.3%)

llvm-svn: 56413

llvm-svn: 56391

llvm-svn: 56378

llvm-svn: 56377

llvm-svn: 56376

results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.

llvm-svn: 56371

catches a fair number of common cases. Note that this currently
causes Fast-ISel to leave behind lots of dead instructions.
Those will be dealt with in subsequent commits.

llvm-svn: 56320

llvm-svn: 56311