R600: Add stack size to .AMDGPUcsdata section

reviewed-by: Vincent Lejeune <vljn at ovi.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199837 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Add wavefront size property to the subtargets v2

v2:
  - Initialize wavefront size to 0

reviewed-by: Vincent Lejeune <vljn at ovi.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199838 91177308-0d34-0410-b5e6-96231b3b80d8
R600: CF_PUSH is the same on Evergreen and Cayman

reviewed-by: Vincent Lejeune <vljn at ovi.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199839 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Refactor stack size calculation

reviewed-by: Vincent Lejeune <vljn at ovi.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199840 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Add some missing CF instruction definitions to the .td files.

reviewed-by: Vincent Lejeune <vljn at ovi.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199841 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Add work-around for the CF stack entry HW bug

The CF stack can be corrupted if you use CF_ALU_PUSH_BEFORE,
CF_ALU_ELSE_AFTER, CF_ALU_BREAK, or CF_ALU_CONTINUE when the number of
sub-entries on the stack is greater than or equal to the stack entry
size and sub-entries modulo 4 is either 0 or 3 (on cedar the bug is
present when number of sub-entries module 8 is either 7 or 0)

We choose to be conservative and always apply the work-around when the
number of sub-enries is greater than or equal to the stack entry size,
so that we can safely over-allocate the stack when we are unsure of the
stack allocation rules.

reviewed-by: Vincent Lejeune <vljn at ovi.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199842 91177308-0d34-0410-b5e6-96231b3b80d8
Provide a dummy section to fix a crash with inline assembly in LTO.

Fixes pr18508.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199843 91177308-0d34-0410-b5e6-96231b3b80d8
Tweak r199835 to use can_execute() instead of exists()

The execution code path crashes if it can't execute the binary so we might as
well take precautions here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199844 91177308-0d34-0410-b5e6-96231b3b80d8
Revert "R600: Add work-around for the CF stack entry HW bug"

This reverts commit 35b8331cad6eb512a2506adbc394201181da94ba.

The -debug-only flag for llc doesn't appear to be available in
all build configurations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199845 91177308-0d34-0410-b5e6-96231b3b80d8
Add CHECK-LABELs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199846 91177308-0d34-0410-b5e6-96231b3b80d8
Revert r162101 and replace it with a solution that works for targets where the pointer type is illegal.
This is a horrible bit of code.  We're calling a simplification routine *in the middle* of type legalization.  We tell the
simplification routine that it's running after legalization, but some of the types it will encounter will be illegal!  The
fix is only to invoke the simplification if the types in question were legal, so that none of its invariants will be violated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199847 91177308-0d34-0410-b5e6-96231b3b80d8