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Author SHA1 Message Date
Rong Xu 9c6f1538cc [PGO] Change profile use cc1 option to handle IR level profiles 
This patch changes cc1 option for PGO profile use from
-fprofile-instr-use=<path> to -fprofile-instrument-use-path=<path>.
-fprofile-instr-use=<path> is now a driver only option.

In addition to decouple the cc1 option from the driver level option, this patch
also enables IR level profile use. cc1 option handling now reads the profile
header and sets CodeGenOpt ProfileUse (valid values are {None, Clang, LLVM}
-- this is a common enum for -fprofile-instrument={}, for the profile
instrumentation), and invoke the pipeline to enable the respective PGO use pass.

Reviewers: silvas, davidxl

Differential Revision: http://reviews.llvm.org/D17737

llvm-svn: 262515
 2016-03-02 20:59:36 +00:00
Diego Novillo 5aecacb275 Display profile file name when emitting a file not found diagnostic. 
When a profile file cannot be opened, we used to display just the error
message but not the name of the profile the compiler was trying to open.
This will become useful in the next set of patches that introduce
GCC-compatible flags to specify profiles.

llvm-svn: 240715
 2015-06-25 22:56:00 +00:00
David Blaikie 981d2a04b7 Fix this test so it doesn't try to open a file to write to the source tree 
llvm-svn: 234173
 2015-04-06 16:33:18 +00:00
NAKAMURA Takumi a01846de2a clang/test/Profile/profile-does-not-exist.c: Avoid checking a message line in the message catalog. 
llvm-svn: 234146
 2015-04-06 08:16:36 +00:00
Nico Weber 176efac95b Don't crash when passing a non-existent file to -fprofile-instr-use=. 
Fixes a regression from r229434.

llvm-svn: 234141
 2015-04-06 04:16:48 +00:00