llvm-svn: 41774

The x86-64 ABI states that objects passed on the stack have
8 byte alignment. Implement that.

llvm-svn: 41768

Patch by Sterling Stein!

llvm-svn: 41758

Use APFloat in UpgradeParser and AsmParser.
Change all references to ConstantFP to use the
APFloat interface rather than double.  Remove
the ConstantFP double interfaces.
Use APFloat functions for constant folding arithmetic
and comparisons.
(There are still way too many places APFloat is
just a wrapper around host float/double, but we're
getting there.)

llvm-svn: 41747

leal    (,%rcx,8), %rcx
It should be
leal    (,%rcx,8), %ecx

llvm-svn: 41735

llvm-svn: 41733

llvm-svn: 41717

llvm-svn: 41711

llvm-svn: 41700

llvm-svn: 41680

llvm-svn: 41645

llvm-svn: 41643

This is mandated table 3.1 at
http://www.x86-64.org/documentation/abi.pdf

llvm-svn: 41642

Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.

llvm-svn: 41632

llvm-svn: 41629

llvm-svn: 41628

Comments added. It now generates V5TE multiply instructions. However, it is still necessary to model PUWLSH bits more clearly.

llvm-svn: 41627

llvm-svn: 41626

llvm-svn: 41625

Added support to fold X86 load / store instructions. This allow rematerialized loads to be folded into their uses.

llvm-svn: 41599

Add a variant of foldMemoryOperand to fold any load / store, not just load / store from / to stack slots.

llvm-svn: 41597

llvm-svn: 41595

llvm-svn: 41590

Add APFloat interfaces to ConstantFP, SelectionDAG.
Fix integer bit in double->APFloat conversion.
Convert LegalizeDAG to use APFloat interface in
ConstantFPSDNode uses.

llvm-svn: 41587

in the trampoline lowering.  Lookup the jump and
mov opcodes for the trampoline rather than hard
coding them.

llvm-svn: 41577

Changed the stack frame layout, StackGrowsUp fits better to Mips strange stack.
Stack offset calculation bug fixed!

llvm-svn: 41529

Added comments about new stack allocation.
Expand SelectCC for i32 results

llvm-svn: 41527

Comments for Mips directives added.

llvm-svn: 41526

llvm-svn: 41525

llvm-svn: 41502

Coping 100MB array (after a warmup) shows that glibc 2.6.1 implementation on
x86-64 (core 2) is 30% faster (from 0.270917s to 0.188079s)

llvm-svn: 41479

changing the interface to allow for future changes.

llvm-svn: 41384

llvm-svn: 41360

llvm-svn: 41359

llvm-svn: 41319

llvm-svn: 41318

llvm-svn: 41284

llvm-svn: 41225

llvm-svn: 41224

llvm-svn: 41208