Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140887

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140886

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140885

llvm-svn: 140879

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140878

llvm-svn: 140875

llvm-svn: 140874

llvm-svn: 140873

llvm-svn: 140870

InstCombine was incorrectly considering the conversion of the constant
zero to be unsafe.

We want to transform:
define float @bar(float %x) nounwind readnone optsize ssp {
  %conv = fpext float %x to double
  %cmp = fcmp olt double %conv, 0.000000e+00
  %conv1 = zext i1 %cmp to i32
  %conv2 = sitofp i32 %conv1 to float
  ret float %conv2
}

Into:
define float @bar(float %x) nounwind readnone optsize ssp {
  %cmp = fcmp olt float %x, 0.000000e+00   ; <---- This
  %conv1 = zext i1 %cmp to i32
  %conv2 = sitofp i32 %conv1 to float
  ret float %conv2
}


rdar://10215914

llvm-svn: 140869

llvm-svn: 140868

llvm-svn: 140865

This matches clang, so default options in llc and friends are now closer to
clang's defaults.

llvm-svn: 140863

llvm-svn: 140862

Remove an assert that was expecting only the relevant 16bit portion for
the fixup being handled. Also kill some dead code in the T2 portion.

rdar://9653509

llvm-svn: 140861

Thanks to Alexandru Dura and Jonas Paulsson for finding it.

llvm-svn: 140859

llvm-svn: 140856

llvm-svn: 140855

Also take this opportunity to clean up the rounding mode pass.

llvm-svn: 140854

catch or repeated filter clauses.  Teach instcombine a bunch
of tricks for simplifying landingpad clauses.  Currently the
code only recognizes the GNU C++ and Ada personality functions,
but that doesn't stop it doing a bunch of "generic" transforms
which are hopefully fine for any real-world personality function.
If these "generic" transforms turn out not to be generic, they
can always be conditioned on the personality function.  Probably
someone should add the ObjC++ personality function.  I didn't as
I don't know anything about it.

llvm-svn: 140852

thanks to Duncan.

llvm-svn: 140850

us to manually provide Pat<> definitions for all FP instruction patterns.

llvm-svn: 140849

This helps with porting code from 2.9 to 3.0 as TargetSelect.h changed location,
and if you include the old one by accident you will trigger this assert.

llvm-svn: 140848

llvm-svn: 140841

immediate.

llvm-svn: 140839

Encode the immediate into its 8-bit form as part of isel rather than later,
which simplifies things for mapping the encoding bits, allows the removal
of the custom disassembler decoding hook, makes the operand printer trivial,
and prepares things more cleanly for handling these in the asm parser.

rdar://10211428

llvm-svn: 140834

slot filler.

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140825

llvm-svn: 140824

This is used when we want to take the address of a machine basic block, but it's
not associated with a BB in LLVM IR.

llvm-svn: 140823

llvm-svn: 140821

handle the case where the retain is in a different basic block.
rdar://10210274.

llvm-svn: 140815

objc_retainBlock call is potentially responsible for copying
the block to the heap to extend its lifetime. rdar://10209613.

llvm-svn: 140814

llvm-svn: 140806

Clean up uses of switch instructions so they are not dependent on the operand ordering.  Patch by Stepan Dyatkovskiy.

llvm-svn: 140803

llvm-svn: 140785

llvm-svn: 140784

llvm-svn: 140783

This also makes it possible to reduce the number of pseudo instructions
and get rid of the encoding information.

llvm-svn: 140776

llvm-svn: 140774

llvm-svn: 140773