llvm-svn: 68939

interpreter mode" when it's not.

llvm-svn: 68937

patch by Alexei Svitkine!

llvm-svn: 68929

only if symbolic addresses are RIP relatives.

llvm-svn: 68924

llvm-svn: 68915

strncat :(

strncat(foo, "bar", 99)
would be optimized to
memcpy(foo+strlen(foo), "bar", 100, 1)
instead of
memcpy(foo+strlen(foo), "bar", 4, 1)"

Patch by Benjamin Kramer!

llvm-svn: 68905

See comment for details.  This fixes rdar://6772169

llvm-svn: 68890

copying into the right register, avoiding a copy.

llvm-svn: 68889

and make it return the assigned register.

llvm-svn: 68888

llvm-svn: 68887

hasImplicitDefOfPhysReg methods.  Use them to remove a 
look in X86 fast isel.

llvm-svn: 68886

code.  Patch by Benjamin Kramer!

llvm-svn: 68885

from the assembler:

Error: unknown pseudo-op: `.debug_inlined'
llvm-svn: 68863

Keep track of inlined functions and their locations. This information is collected when nested llvm.dbg.func.start intrinsics are seen. (Right now, inliner removes nested llvm.dbg.func.start intrinisics during inlining.) 

Create debug_inlined dwarf section using these information. This info is used by gdb, at least on Darwin, to enable better experience debugging inlined functions. See DwarfWriter.cpp for more information on structure of debug_inlined section.

llvm-svn: 68847

DebugLabelFolder ruthlessly deletes redundant labels. However, sometimes the redundant labels is referenced by debug info somewhere else. This patch provies a way so that dwarf writer can mark labels as used.

llvm-svn: 68813

No functional changes.

llvm-svn: 68808

1. Sinking would crash when the first instruction of a block was
   sunk due to iterator problems.
2. Instructions could be sunk to their current block, causing an
   infinite loop.

This fixes PR3968

llvm-svn: 68787

llvm-svn: 68786

llvm-svn: 68783

With this we generate

movl    %gs:0, %eax
leal    i@NTPOFF(%eax), %eax

instead of

movl    $i@NTPOFF, %eax
addl    %gs:0, %eax

llvm-svn: 68778

llvm::PointerType::get().  Patch by Anders Johnsen!

llvm-svn: 68772

It turns out that there are still several problems with this, will file a bugzilla.

llvm-svn: 68749

llvm-svn: 68747

llvm-svn: 68745

code that uses it by using SelectionDAG::getVTList instead.

llvm-svn: 68744

the key. This will cause it to create a new std::string, which isn't
wanted. Instead, pass back the "const char*". Modify the EmitString() method to
take a "const char*".

llvm-svn: 68741

llvm-svn: 68735

isRegTiedToDefOperand.  Thanks to Bob for pointing this out!

llvm-svn: 68734

llvm-svn: 68730

gives a micro speedup in the Dwarf writer.

llvm-svn: 68728

llvm-svn: 68727

register destinations that are tied to source operands.  The
TargetInstrDescr::findTiedToSrcOperand method silently fails for inline
assembly.  The existing MachineInstr::isRegReDefinedByTwoAddr was very
close to doing what is needed, so this revision makes a few changes to
that method and also renames it to isRegTiedToUseOperand (for consistency
with the very similar isRegTiedToDefOperand and because it handles both
two-address instructions and inline assembly with tied registers).

llvm-svn: 68714

The way we are trying to figure out banksel immediate operand may yield different results for different type of insns. This will eventually need to be changed but currently let us prevent the crash in cases of incorrect detection of banksel operand.

llvm-svn: 68713

attached testcase.

llvm-svn: 68712

Arguments to indirect calls were being passed incorrectly. They are not fixed to start after return value.

llvm-svn: 68705

llvm-svn: 68690

r68576 unconverd a bug in PIC16 port (Thanks to Dan Gohman) where we were custom lowering an ADD to ADDC.

llvm-svn: 68671

in addition to ZERO_EXTEND and SIGN_EXTEND. Fix a bug in the
way it checked for live-out values, and simplify the way it
find users by using SDNode::use_iterator's (relatively) new
features. Also, make it slightly more permissive on targets
with free truncates.

In SelectionDAGBuild, avoid creating ANY_EXTEND nodes that are
larger than necessary. If the target's SwitchAmountTy has
enough bits, use it. This exposes the truncate to optimization
early, enabling more optimizations.

llvm-svn: 68670

Convert TargetRegisterInfo's super-register checking to use a pre-computed hash table just like subregister checking does.

llvm-svn: 68669

eagerly. This helps avoid CopyToReg nodes in some cases where they
aren't needed, and also helps subsequent optimizer heuristics
in cases where the extra nodes would cause the node to appear
to have multiple results. This doesn't have a significant impact
currently; it'll help an upcoming change.

llvm-svn: 68667