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7 Commits

Author SHA1 Message Date
Adrian Prantl bc068586ac Revert "Revert r241620 and follow-up commits" and move the initialization 
of the llvm targets from clang/CodeGen into ClangCheck.cpp and CIndex.cpp.

llvm-svn: 241653
 2015-07-08 01:00:30 +00:00
Adrian Prantl 142ec39739 Revert r241620 and follow-up commits while investigating linux buildbot failures. 
llvm-svn: 241642
 2015-07-07 23:19:46 +00:00
Adrian Prantl 726855a8da Update testcases that use precompiled headers to require a target after 
r241620.

llvm-svn: 241623
 2015-07-07 20:31:18 +00:00
Alexey Bataev db39021cee [OPENMP] -fopenmp enables OpenMP support (fix for http://llvm.org/PR23492) 
-fopenmp turns on OpenMP support and links libiomp5 as OpenMP library. Also there is -fopenmp={libiomp5|libgomp} option that allows to override effect of -fopenmp and link libgomp library (if -fopenmp=libgomp is specified).
Differential Revision: http://reviews.llvm.org/D9736

llvm-svn: 237769
 2015-05-20 04:24:19 +00:00
Alexey Bataev f0ab553fea [OPENMP] Fixed bug in atomic update/capture/write constructs. 
Fixed a bug with codegen for destination atomic l-value with padding and junk in this padding bytes.

llvm-svn: 237422
 2015-05-15 08:36:34 +00:00
Alexey Bataev 9d541a72e8 [OPENMP] Fixed atomic construct with non-integer expressions. 
Do not emit 'atomicrmw' instruction for simple atomic constructs with non-integer expressions.

llvm-svn: 236828
 2015-05-08 11:47:16 +00:00
Alexey Bataev b4505a7229 [OPENMP] Codegen for 'atomic update' construct. 
Adds atomic update codegen for the following forms of expressions:

x binop= expr;
x++;
++x;
x--;
--x;
x = x binop expr;
x = expr binop x;
If x and expr are integer and binop is associative or x is a LHS in a RHS of the assignment expression, and atomics are allowed for type of x on the target platform atomicrmw instruction is emitted.
Otherwise compare-and-swap sequence is emitted:

bb:
...
atomic load <x>
cont:
<expected> = phi [ <x>, label %bb ], [ <new_failed>, %cont ]
<desired> = <expected> binop <expr>
<res> = cmpxchg atomic &<x>, desired, expected
<new_failed> = <res>.field1;
br <res>field2, label %exit, label %cont
exit:
...

Differential Revision: http://reviews.llvm.org/D8536

llvm-svn: 233513
 2015-03-30 05:20:59 +00:00