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Commit Graph

5 Commits

Author SHA1 Message Date
Elena Demikhovsky
a4a4bded4d Prevent insertion of "vzeroupper" before call that preserves YMM registers, since a caller uses preserved registers across the call.
llvm-svn: 175043
2013-02-13 08:02:04 +00:00
Chad Rosier
ad2ee03384 Remove the X86 Maximal Stack Alignment Check pass as it is no longer necessary.
This pass was conservative in that it always reserved the FP to enable dynamic
stack realignment, which allowed the RA to use aligned spills for vector
registers.  This happens even when spills were not necessary.  The RA has 
since been improved to use unaligned spills when necessary.

The new behavior is to realign the stack if the frame pointer was already
reserved for some other reason, but don't reserve the frame pointer just
because a function contains vector virtual registers.

Part of rdar://12719844

llvm-svn: 168627
2012-11-26 22:55:05 +00:00
Elena Demikhovsky
9f52a3ef84 Intel OCL built-ins calling conventions now support MacOS 32-bit.
llvm-svn: 168359
2012-11-20 09:37:57 +00:00
Elena Demikhovsky
d93b6e7cd4 The test avx-intel-ocl.ll failed. I can't reproduce on any of my machines. I added -mcpu flag, may be it will fix the problem
llvm-svn: 166669
2012-10-25 08:38:42 +00:00
Elena Demikhovsky
b711ef1960 Special calling conventions for Intel OpenCL built-in library.
llvm-svn: 166566
2012-10-24 14:46:16 +00:00