llvm-svn: 41138

The AC_CHECK_HEADER macro was used instead of AC_CHECK_HEADERS. The former does
not automatically add a #define to the configure variables while the latter
does. Consequently, the HAVE_PTHREAD_H symbol was not defined which caused the
Mutex.cpp file to compile to an empty implementation. 

llvm-svn: 41137

llvm-svn: 41135

Update test: dynamic_stackalloc size *must* be rounded to ensure stack ptr be left in a valid state.

llvm-svn: 41134

If dynamic_stackalloc alignment is > stack alignment, first issue an instruction to align the stack ptr before the decrement.

llvm-svn: 41133

- If a dynamic_stackalloc alignment requirement is <= stack alignment, then the alignment argument is ignored.
- *Always* round up the size of the allocation to multiples of stack
alignment to ensure the stack ptr is never left in an invalid state after a dynamic_stackalloc.

llvm-svn: 41132

llvm-svn: 41131

what they're supposed to be before using them.

llvm-svn: 41130

llvm-svn: 41129

llvm-svn: 41128

time performance win in most cases.

llvm-svn: 41126

two's complement bignum arithmetic.  They could be used to
implement much of APInt, but the idea is they are enough to
implement APFloat as well, which the current APInt interface
is not suited for.

Patch by Neil Booth!

llvm-svn: 41124

llvm-svn: 41123

1. Eliminate redundant error messages. LinkInFile and LinkInArchive
   already call the error() method in each case so there's no use
   telling the user again that an item couldn't be linked in.

2. Improve the formatting of error messages (separating content).

3. Change the wording for the warning about unrecognized files. Make
   it clear that the file is being ignored.

llvm-svn: 41121

llvm-svn: 41119

Fix some kill info update bugs; add hidden option -disable-rematerialization to turn off remat for debugging.

llvm-svn: 41118

reported to the end user.

llvm-svn: 41117

the standard error.

llvm-svn: 41116

llvm-svn: 41115

llvm-svn: 41114

Fix PR1287.

llvm-svn: 41112

llvm-svn: 41111

llvm-svn: 41110

If the source of a move is in spill slot, the reload may be folded to essentially a load from stack slot. It's ok to mark the stack slot value as available for reuse. But it should not be clobbered since the destination of the move is live.

llvm-svn: 41109

Update .cvs file

llvm-svn: 41106

hard to catch bugs with retaddr lowering

llvm-svn: 41104

llvm-svn: 41103

llvm-svn: 41101

llvm-svn: 41100

llvm-svn: 41099

regex used to convert all the others because the first '|' was on a
separate line.

llvm-svn: 41098

llvm-svn: 41097

llvm-svn: 41096

Use dominance frontier to fixup incoming edges of successor blocks not domianted by DeadBB.
Use df_iterator to walk and delete basic blocks dominated by DeadBB.

llvm-svn: 41095

llvm-svn: 41094

llvm-svn: 41093

llvm-svn: 41091

llvm-svn: 41090

llvm-svn: 41087

- If the defs of a spilled rematerializable MI are dead after the spill store is deleted, delete
  the def MI as well.

llvm-svn: 41086