Commit Graph

51 Commits

Author SHA1 Message Date
Bob Wilson 9868d71ffe Use triple's isiOS() and isOSDarwin() methods.
These methods are already used in lots of places. This makes things more
consistent. NFC.

llvm-svn: 219386
2014-10-09 05:43:30 +00:00
Richard Smith 1ed4229f6f PR21145: Teach LLVM about C++14 sized deallocation functions.
C++14 adds new builtin signatures for 'operator delete'. This change allows
new/delete pairs to be removed in C++14 onwards, as they were in C++11 and
before.

llvm-svn: 219014
2014-10-03 20:17:06 +00:00
Saleem Abdulrasool 8dc8fb18d8 Target: invert condition for Windows
The Microsoft ABI and MSVCRT are considered the canonical C runtime and ABI.
The long double routines are not part of this environment.  However, cygwin and
MinGW both provide supplementary implementations.  Change the condition to
reflect this reality.

llvm-svn: 213896
2014-07-24 22:09:06 +00:00
Saleem Abdulrasool c61ed0474e X86: correct library call setup for Windows itanium
This target is identical to the Windows MSVC (and follows Microsoft ABI for C).
Correct the library call setup for this target.  The same set of library calls
are missing on this environment.

llvm-svn: 213883
2014-07-24 17:46:36 +00:00
Tom Stellard 36a031870b TargetLibraryInfo: Disable memcpy and memset on R600
There are no implementations of these for R600.

llvm-svn: 205455
2014-04-02 19:53:29 +00:00
Saleem Abdulrasool edbdd2e5df Canonicalise Windows target triple spellings
Construct a uniform Windows target triple nomenclature which is congruent to the
Linux counterpart.  The old triples are normalised to the new canonical form.
This cleans up the long-standing issue of odd naming for various Windows
environments.

There are four different environments on Windows:

MSVC: The MS ABI, MSVCRT environment as defined by Microsoft
GNU: The MinGW32/MinGW32-W64 environment which uses MSVCRT and auxiliary libraries
Itanium: The MSVCRT environment + libc++ built with Itanium ABI
Cygnus: The Cygwin environment which uses custom libraries for everything

The following spellings are now written as:

i686-pc-win32 => i686-pc-windows-msvc
i686-pc-mingw32 => i686-pc-windows-gnu
i686-pc-cygwin => i686-pc-windows-cygnus

This should be sufficiently flexible to allow us to target other windows
environments in the future as necessary.

llvm-svn: 204977
2014-03-27 22:50:05 +00:00
Nico Weber ad15692061 "Mac OS/X" -> "Mac OS X" spelling fixes for llvm.
Patch from Sean McBride <sean@rogue-research.com>!

llvm-svn: 203258
2014-03-07 18:08:54 +00:00
Benjamin Kramer 34f460ed29 SimplifyLibCalls: Push TLI through the exp2->ldexp transform.
For the odd case of platforms with exp2 available but not ldexp.

llvm-svn: 200795
2014-02-04 20:27:23 +00:00
Tim Northover 103e648d30 OS X: the correct function is __sincospif_stret, not __sincospi_stretf
rdar://problem/13729466

llvm-svn: 200771
2014-02-04 16:28:20 +00:00
Chandler Carruth f5689f8304 Disable transforms that introduce calls to exp10*() on Linux due to
widespread glibc bugs.

The glibc implementation of exp10 has a very serious precision bug in
version 2.15 (and older versions). This is still very widely used (the
current Ubuntu LTS for example uses it) and so it isn't reasonable to
make transforms that produce these functions. This fixes many
miscompiles introduced when we started transforming pow(10.0, ...) into
exp10, and it may have fixed other latent miscompiles where exp10
provided sufficient precision but exp10f did not.

This is all really horrible. The primary bug has been fixed for over
a year and glibc 2.18 works correctly for the test cases I have, but it
will be 2017 before the LTS using 2.15 is no longer supported by Ubuntu
(and thus reasonable for folks to be relying on). =[ We're either going
to need to live without these optimizations, or find a way to switch
behavior more dynamically than using simply the fact that the OS is
"Linux".

To make matters worse, there appears to be significant testing and
fixing of numerous other bugs in the exp10 family of functions right now
in glibc. While those haven't been causing problems I've seen in the
wild, it gives me concerns that we may need to wait until an even later
release of glibc before we can reliably transform code into exp10.

llvm-svn: 198093
2013-12-28 02:40:19 +00:00
Reid Kleckner f4355eef5e TLI: Make exp10* avaiable on Linux/Mac/iOS and unavailable elsewhere
This makes it unavailable on NetBSD, Android, etc.

Patch by Brad Smith!

llvm-svn: 198056
2013-12-26 19:17:04 +00:00
Yi Jiang 6ab044ee35 Enable double to float shrinking optimizations for binary functions like 'fmin/fmax'. Fix radar:15283121
llvm-svn: 197434
2013-12-16 22:42:40 +00:00
Joerg Sonnenberger ddb582896a There is no exp10 on NetBSD.
llvm-svn: 197348
2013-12-15 20:36:17 +00:00
Yi Jiang f92a574246 Resubmit r196544: Apply transformation on OS X 10.9+ and iOS 7.0+: pow(10, x) ―> __exp10(x)
llvm-svn: 197109
2013-12-12 01:55:04 +00:00
Manman Ren 2e06c8c777 Revert 196544 due to internal bot failures.
llvm-svn: 196732
2013-12-08 20:28:33 +00:00
Yi Jiang 01cfa94212 Apply transformation on OS X 10.9+ and iOS 7.0+: pow(10, x) ―> __exp10(x)
llvm-svn: 196544
2013-12-05 22:42:50 +00:00
Bob Wilson d8d92d90fa Convert calls to __sinpi and __cospi into __sincospi_stret
This adds an SimplifyLibCalls case which converts the special __sinpi and
__cospi (float & double variants) into a __sincospi_stret where appropriate to
remove duplicated work.

Patch by Tim Northover

llvm-svn: 193943
2013-11-03 06:48:38 +00:00
Cameron Esfahani 943908b78d Clean up some usage of Triple. The base class has methods for determining if the target is iOS and Linux.
llvm-svn: 189604
2013-08-29 20:23:14 +00:00
Richard Smith 70523c7926 Treat nothrow forms of ::operator delete and ::operator delete[] as
deallocation functions.

llvm-svn: 186798
2013-07-21 23:11:42 +00:00
Michael Gottesman f7459c740b Added posix function gettimeofday to LibFunc::Func for all platforms but Windows.
*NOTE* In a recent version of posix, they added the restrict keyword to the
arguments for this function. From some spelunking it seems that on some
platforms, the call has restrict on its arguments and others it does not. Thus I
left off the restrict keyword from the function prototype in the comment.

llvm-svn: 185501
2013-07-03 04:00:51 +00:00
Preston Gurd 048f99de11 Convert sqrt functions into sqrt instructions when -ffast-math is in effect.
When -ffast-math is in effect (on Linux, at least), clang defines
__FINITE_MATH_ONLY__ > 0 when including <math.h>. This causes the
preprocessor to include <bits/math-finite.h>, which renames the sqrt functions.
For instance, "sqrt" is renamed as "__sqrt_finite". 

This patch adds the 3 new names in such a way that they will be treated
as equivalent to their respective original names.

llvm-svn: 182739
2013-05-27 15:44:35 +00:00
Benjamin Kramer dfbcba5ae0 Add one more overload to make VS2008's debug mody happy.
sigh.

llvm-svn: 176946
2013-03-13 13:50:47 +00:00
Benjamin Kramer 160f72dc8e TLI: Microoptimize calls to strlen+memcmp to strncmp.
The strlen+memcmp was hidden in a call to StringRef::operator==. We check if
there are any null bytes in the string upfront so we can simplify the comparison
Small speedup when compiling code with many function calls.

llvm-svn: 176766
2013-03-09 13:48:23 +00:00
Meador Inge b904e6e467 Add more functions to the TLI.
This patch adds many more functions to the target library information.
All of the functions being added were discovered while doing the migration
of the simplify-libcalls attribute annotation functionality to the
functionattrs pass.  As a part of that work the attribute annotation logic
will query TLI to determine if a function should be annotated or not.

Signed-off-by: Meador Inge <meadori@codesourcery.com>
llvm-svn: 176514
2013-03-05 21:47:40 +00:00
Meador Inge 780a1861f1 Add more functions to the target library information.
I discovered a few more missing functions while migrating optimizations
from the simplify-libcalls pass to the instcombine (I already added some
in r167659).

llvm-svn: 168501
2012-11-22 15:36:42 +00:00
Meador Inge 2526a42ef1 Add more functions to the target library information.
In the process of migrating optimizations from the simplify-libcalls pass
to the instcombine pass I noticed that a few functions are missing from
the target library information.  These functions need to be available for
querying in the instcombine library call simplifiers.  More functions will
probably be added in the future as more simplifiers are migrated to
instcombine.

llvm-svn: 167659
2012-11-10 03:11:06 +00:00
Benjamin Kramer 8bcc971174 Make MemoryBuiltins aware of TargetLibraryInfo.
This disables malloc-specific optimization when -fno-builtin (or -ffreestanding)
is specified. This has been a problem for a long time but became more severe
with the recent memory builtin improvements.

Since the memory builtin functions are used everywhere, this required passing
TLI in many places. This means that functions that now have an optional TLI
argument, like RecursivelyDeleteTriviallyDeadFunctions, won't remove dead
mallocs anymore if the TLI argument is missing. I've updated most passes to do
the right thing.

Fixes PR13694 and probably others.

llvm-svn: 162841
2012-08-29 15:32:21 +00:00
Chad Rosier 7fb0cd26f7 Add a few functions to TargetLibraryInfo as part of PR13574.
Patch by Weiming Zhao <weimingz@codeaurora.org>.

llvm-svn: 162329
2012-08-21 23:28:56 +00:00
Bob Wilson c740e3f0d1 Add new getLibFunc method to TargetLibraryInfo.
This just provides a way to look up a LibFunc::Func enum value for a
function name.  Alphabetize the enums and function names so we can use a
binary search.

llvm-svn: 161231
2012-08-03 04:06:22 +00:00
Nuno Lopes 89702e94b5 make all Emit*() functions consult the TargetLibraryInfo information before creating a call to a library function.
Update all clients to pass the TLI information around.
Previous draft reviewed by Eli.

llvm-svn: 160733
2012-07-25 16:46:31 +00:00
Nuno Lopes 342cf787ef add a few more functions to TargetLibraryInfo:
fputc, memchr, memcmp, putchar, puts, strchr, strncmp

llvm-svn: 160690
2012-07-24 21:00:36 +00:00
Nuno Lopes 20f5a7aeb7 TargetLibraryInfo: add strn?cat, strn?cpy, and strn?len
llvm-svn: 160678
2012-07-24 17:25:06 +00:00
Joe Groff a81bcbb9bb fix pr12559: mark unavailable win32 math libcalls
also fix SimplifyLibCalls to use TLI rather than compile-time conditionals to enable optimizations on floor, ceil, round, rint, and nearbyint

llvm-svn: 154960
2012-04-17 23:05:54 +00:00
Nick Lewycky 4b273cb7ea Remove redundant getAnalysis<> calls in GlobalOpt. Add a few Itanium ABI calls
to TargetLibraryInfo and use one of them in GlobalOpt.

llvm-svn: 150323
2012-02-12 02:15:20 +00:00
David Blaikie a379b18173 Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch
llvm-svn: 146960
2011-12-20 02:50:00 +00:00
Owen Anderson bb15fec2b8 Enhance both TargetLibraryInfo and SelectionDAGBuilder so that the latter can use the former to prevent the formation of libm SDNode's when -fno-builtin is passed.
llvm-svn: 146193
2011-12-08 22:15:21 +00:00
Chad Rosier 676c093758 Add missing functions.
llvm-svn: 145608
2011-12-01 18:26:19 +00:00
Chad Rosier 10fe1fe39e Add a few more functions to TargetLibraryInfo. More of rdar://10500969.
llvm-svn: 145596
2011-12-01 17:54:37 +00:00
Chad Rosier 738da252ab Add a few functions to TargetLibraryInfo.
llvm-svn: 145508
2011-11-30 19:19:00 +00:00
Chad Rosier abba0947db Alphabetize TargetLibraryInfo enum and fix doxygen comments. No functional
change intended.

llvm-svn: 145468
2011-11-30 01:51:49 +00:00
Chad Rosier 82e1bd8e94 Add support for sqrt, sqrtl, and sqrtf in TargetLibraryInfo. Disable
(fptrunc (sqrt (fpext x))) -> (sqrtf x) transformation if -fno-builtin is 
specified.
rdar://10466410

llvm-svn: 145460
2011-11-29 23:57:10 +00:00
Eli Friedman 489c0ff4a4 Add support for custom names for library functions in TargetLibraryInfo. Add a custom name for fwrite and fputs on x86-32 OSX. Make SimplifyLibCalls honor the custom
names for fwrite and fputs.

Fixes <rdar://problem/9815881>.

llvm-svn: 144876
2011-11-17 01:27:36 +00:00
Duncan Sands eeb50c8fd2 Enable printf() to iprintf() optimization for the TCE target.
Patch by Pekka Jaaskelainen. 

llvm-svn: 132774
2011-06-09 11:11:45 +00:00
Chris Lattner 4c0d9e2249 add a copy ctor to TargetLibraryInfo.
llvm-svn: 131806
2011-05-21 20:09:13 +00:00
Daniel Dunbar cd01ed5bd6 ADT/Triple: Renambe isOSX... methods to isMacOSX for consistency with the OS
triple component.

llvm-svn: 129838
2011-04-20 00:14:25 +00:00
Daniel Dunbar 9483bb6bf3 Target: Eliminate a use of getDarwinMajorNumber().
llvm-svn: 129803
2011-04-19 20:44:08 +00:00
Richard Osborne af52c52569 Optimize fprintf -> iprintf if there are no floating point arguments
and siprintf is available on the target.

llvm-svn: 126940
2011-03-03 14:20:22 +00:00
Richard Osborne 2dfb888392 Optimize sprintf -> siprintf if there are no floating point arguments
and siprintf is available on the target.

llvm-svn: 126937
2011-03-03 14:09:28 +00:00
Richard Osborne 815de536e5 Optimize printf -> iprintf if there are no floating point arguments
and iprintf is available on the target. Currently iprintf is only
marked as being available on the XCore.

llvm-svn: 126935
2011-03-03 13:17:51 +00:00
Chris Lattner 1341df93f7 add a way to disable all builtins, wire it up to opt's -disable-simplifylibcalls flag.
llvm-svn: 125978
2011-02-18 22:34:03 +00:00