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6 Commits

Author SHA1 Message Date
Bill Wendling d02fd83182 Fix testcases to not rely upon target-* attributes. 
llvm-svn: 176135
 2013-02-26 23:08:48 +00:00
Anna Zaks 0f424b029b Revert "Add more attributes from the command line to functions." 
This reverts commit 176009.

The commit is a likely cause of several buildbot failures.

llvm-svn: 176044
 2013-02-25 19:51:03 +00:00
Bill Wendling 87869db5f5 Add more attributes from the command line to functions. 
This is an ongoing process. Any command line option which a back-end cares about
should be added here.

llvm-svn: 176009
 2013-02-25 07:15:16 +00:00
Bill Wendling c33fc4c004 Modify the tests to use attribute group references instead of listing the 
function attributes.

llvm-svn: 175606
 2013-02-20 07:22:19 +00:00
Benjamin Kramer c4aecf9994 Make ceil/floor/nearbyint/rint/round const even with -fmath-errno. 
The conditions described by POSIX can never happen with IEEE-754 floats.
When the function is const we can emit a single sse4.1 instruction for
it, without losing anything :)

llvm-svn: 162379
 2012-08-22 18:50:01 +00:00
Benjamin Kramer 6f0bf8049a Math builtin definition tweaks. 
There were missed optimizations when the system headers didn't have attributes
in place, specifically:

- Add copysign, exp2, log2, nearbyint, rint and trunc to the list.
  These are functions that get inlined by LLVM's optimizer, but only when they
  have the right attributes.
- Mark copysign, fabs, fmax, fmin and trunc const unconditionally.
  Previously these were only const with -fno-math-errno, but they never set
  errno per POSIX.

For ceil/floor/nearbyint/round I'm not aware of any implementation that sets
errno, but POSIX says it may signal overflow so I left them alone for now.

llvm-svn: 162375
 2012-08-22 18:16:02 +00:00