No functionality changes.

llvm-svn: 195057

DebugInfo: Simplify a few more explicit constructions, underconstrained types, and make DIType(MDNode*) explicit like all the other DI* node ctors.

llvm-svn: 195055

This reverts commit r190888, to fix PR17967.  The original change wasn't
the right way to get @feat.00 into the object file.  The right fix is to
make @feat.00 be a global symbol.

llvm-svn: 195053

lowering only for load/stores to scalar allocas. The resulting values
confuse the backend and don't add anything because we can describe
array-allocas with a dbg.declare intrinsic just fine.

rdar://problem/15464571

llvm-svn: 195052

(except functions marked always_inline).
Functions with 'optnone' must also have 'noinline' so they don't get
inlined into any other function.

Based on work by Andrea Di Biagio.

llvm-svn: 195046

Moving into a VSrc doesn't always work, since it could be
replaced with an SGPR later.

llvm-svn: 195042

No other SGPR operands are allowed, so if VCC is
used, move the other to a VGPR.

llvm-svn: 195041

Test doesn't actually check the output. I need
to fix add i64 being matched for the addressing
calculations.

llvm-svn: 195040

llvm-svn: 195039

llvm-svn: 195038

The carry always goes to SCC.

llvm-svn: 195037

llvm-svn: 195036

llvm-svn: 195035

llvm-svn: 195034

When replacing scalar operations with vector,
the wrong implicit output register was used.

llvm-svn: 195033

llvm-svn: 195031

The ifPatternMatch() function was not correctly reporting the number
of matches in some cases.

llvm-svn: 195030

This is useful when writing test cases for the AMDIL structurizer.

llvm-svn: 195029

llc converts all values passed to -mattr= to lowercase, so this
enables us to toggle this feature when using llc.

llvm-svn: 195028

llvm-svn: 195026

llvm-svn: 195025

Checking for a return value with FormatMessage; if the call fails, there's no guarantee that the buffer will be non-null.

llvm-svn: 195019

llvm-svn: 195018

Fixes http://llvm.org/PR16221, http://llvm.org/PR15927
Phabricator: http://llvm-reviews.chandlerc.com/D1236

Patch by Andrew Tulloch!

llvm-svn: 195016

[ASan] Fix PR17867 - make sure ASan doesn't crash if use-after-scope and use-after-return are combined.

llvm-svn: 195014

In some case the loop exit count computation can overflow. Extend the type to
prevent most of those cases.

The problem is loops like:
int main ()
{
  int a = 1;
  char b = 0;
  lbl:
    a &= 4;
    b--;
    if (b) goto lbl;
  return a;
}

The backedge count is 255. The induction variable type is i8. If we add one to
255 to get the exit count we overflow to zero.

To work around this issue we extend the type of the induction variable to i32 in
the case of i8 and i16.

PR17532

llvm-svn: 195008

Fixed an inappropriate use of BuildPairF64 when compiling for MIPS32 with FP64
which resulted in an impossible constraint on the register allocation. It now
uses BuildPairF64_64.

llvm-svn: 195007

Note that there's no hardware yet that relies on that encoding.

llvm-svn: 195006

    
The immediate field should be encoded as "imm - 1" as the CPU always adds one to that field.

llvm-svn: 195004

This change is incorrect. If you delete virtual destructor of both a base class
and a subclass, then the following code:
  Base *foo = new Child();
  delete foo;
will not cause the destructor for members of Child class. As a result, I observe
plently of memory leaks. Notable examples I investigated are:
ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl.

llvm-svn: 194997

Set some unspecified bits of INS/DUP to zero as ARMARM requested.

llvm-svn: 194996

The functions are like: vst1_s8_x2 ...

llvm-svn: 194990

Debug info verifier is part of the verifier which is a Function Pass.
Tot currently tries to pull all reachable debug info MDNodes in each function,
which is too time-consuming. The correct fix seems to be separating debug info
verification to its own module pass.

I will disable the debug info verifier until a correct fix is found.

For Bill's testing case, enabling debug info verifier increase compile
time from 11s to 11m.

llvm-svn: 194986

llvm-svn: 194985

llvm-svn: 194981

llvm-svn: 194980

llvm-svn: 194979

llvm-svn: 194975

We used to collect debug info MDNodes in doInitialization and verify them in
doFinalization. That is incorrect since MDNodes can be modified by passes run
between doInitialization and doFinalization.

To fix the problem, we handle debug info MDNodes that can be reached from a
function in runOnFunction (i.e we collect those nodes by calling processDeclare,
processValue and processLocation, and then verify them in runOnFunction).

We handle debug info MDNodes that can be reached from named metadata in
doFinalization. This is in line with how Verifier handles module-level data
(they are verified in doFinalization).

rdar://15472296

llvm-svn: 194974

We used to depend on running processModule before the other public functions
such as processDeclare, processValue and processLocation. We are now relaxing
the constraint by adding a module argument to the three functions and
letting the three functions to initialize the type map. This will be used in
a follow-on patch that collects nodes reachable from a Function.

llvm-svn: 194973