llvm-svn: 96837

llvm-svn: 96834

Instcombine constant folding can normalize gep with negative index to index with large offset. When instcombine objsize checking transformation sees these geps where the offset seemingly point out of bound, it should just return "i don't know" rather than asserting.

llvm-svn: 96825

126.gcc nightly tests. These failures uncovered latent bugs that machine DCE
could remove one half of a stack adjust down/up pair, causing PEI to assert.
This update fixes that, and the tests now pass.

llvm-svn: 96822

llvm-svn: 96818

value.

Thumb2 uses the tADJCALLSTACK* instructions, and doesn't need t2 versions, so
remove the FIXME entry.

llvm-svn: 96817

operators.

The test difference is just due to the multiplication operands
being commuted (and thus requiring a more elaborate match). In
optimized code, that expression would be folded.

llvm-svn: 96816

llvm-svn: 96811

llvm-svn: 96810

llvm-svn: 96809

llvm-svn: 96808

llvm-svn: 96807

for disassembly only.

llvm-svn: 96806

failures from ValueTable::verifyRemoved() when using -debug.

llvm-svn: 96805

o signed/unsigned add/subtract
o signed/unsigned halving add/subtract
o unsigned sum of absolute difference [and accumulate]
o signed/unsigned saturate
o signed multiply accumulate/subtract [long] dual

llvm-svn: 96795

during a tail call. A parameter might overwrite this stack slot during the tail
call. 

The sequence during a tail call is:
1.) load return address to temp reg
2.) move parameters (might involve storing to return address stack slot)
3.) store return address to new location from temp reg

If the stack location is marked immutable CodeGen can colocate load (1) with the
store (3).

This fixes bug 6225.

llvm-svn: 96783

llvm-svn: 96780

llvm-svn: 96779

llvm-svn: 96778

llvm-svn: 96777

SSE min and max instructions. The real thing this code needs to be
concerned about is negative zero.

Update the sse-minmax.ll test accordingly, and add tests for
-enable-unsafe-fp-math mode as well.

llvm-svn: 96775

induction variable value and a loop-variant value, don't force the
insert position to be at the post-increment position, because it may
not be dominated by the loop-variant value. This fixes a
use-before-def problem noticed on PPC.

llvm-svn: 96774

llvm-svn: 96771

create an X86ISD::Cmp node with result type i64 on the 
CodeGen/X86/shift-i256.ll testcase and the new isel was assert on it
downstream.

llvm-svn: 96768

llvm-svn: 96763

llvm-svn: 96762

It turned out that we failed to emit proper symbol stubs on non-x86/darwin for ages (we emitted a reference to a stub, but no stub was emitted). The code inside x86-32/macho target objfile lowering should actually be the generic one - move it there.

This (I really, really hope) should fix EH issues on ppc/darwin
and arm/darwin.

llvm-svn: 96755

and another taking a raw_ostream, but otherwise identical.  Use raw_ostream everywhere.

llvm-svn: 96746

This changes the stack overflow in PR6363 to an assertion failure.

llvm-svn: 96744

This fixes PR6348

llvm-svn: 96734

llvm-svn: 96720

handled in ARMInstPrinter.cpp.

And added PLD/PLDW/PLI (Preload Data/Instruction) for disassembly only.

llvm-svn: 96719

it to follow the mode needed by the new isel.  Instead of returning
the input and output chains, it just returns the (currently only one,
which is a silly limitation) node that has input and output chains.

Since we want the old thing to still work, add a new 
SelectScalarSSELoad to emulate the old interface.  The XXX suffix
and the wrapper will eventually go away.

llvm-svn: 96715

the same thing and is more efficient for the matcher.

llvm-svn: 96712

the division would have a remainder.

llvm-svn: 96693

scaled reuse.

llvm-svn: 96692

the armv6 nightly tests.

llvm-svn: 96691

llvm-svn: 96688

Also, FileCheck'ize a test.

llvm-svn: 96686

true or false as its exit condition. These are usually eliminated by
SimplifyCFG, but the may be left around during a pass which wishes
to preserve the CFG.

llvm-svn: 96683