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774b441b5e
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37 Commits

Author SHA1 Message Date
Michael Kuperstein
774b441b5e Use std::bitset for SubtargetFeatures 
Previously, subtarget features were a bitfield with the underlying type being uint64_t. 
Since several targets (X86 and ARM, in particular) have hit or were very close to hitting this bound, switching the features to use a bitset.
No functional change.

The first time this was committed (r229831), it caused several buildbot failures. 
At least some of the ARM ones were due to gcc/binutils issues, and should now be fixed.

Differential Revision: http://reviews.llvm.org/D8542

llvm-svn: 233055
 2015-03-24 09:17:25 +00:00
Michael Kuperstein
efd7a96d2e Reverting r229831 due to multiple ARM/PPC/MIPS build-bot failures. 
llvm-svn: 229841
 2015-02-19 11:38:11 +00:00
Michael Kuperstein
ba5b04c798 Use std::bitset for SubtargetFeatures 
Previously, subtarget features were a bitfield with the underlying type being uint64_t. 
Since several targets (X86 and ARM, in particular) have hit or were very close to hitting this bound, switching the features to use a bitset.

No functional change.

Differential Revision: http://reviews.llvm.org/D7065

llvm-svn: 229831
 2015-02-19 09:01:04 +00:00
Craig Topper
6dc4a8bc2c Fix some cases where StringRef was being passed by const reference. Remove const from some other StringRefs since its implicitly const already. 
llvm-svn: 216820
 2014-08-30 16:48:02 +00:00
Hans Wennborg
4fa2fd12ca SubTargetFeature.cpp: it seems the size of this SmallVector should be 3 
because some subtarget feature strings have three components.

llvm-svn: 215339
 2014-08-11 02:21:32 +00:00
Eric Christopher
addf51ddde Make the split function use StringRef::split. 
llvm-svn: 208723
 2014-05-13 19:55:17 +00:00
Eric Christopher
9c928478f4 Use a range based for loop for the SubtargetFeatures print function. 
llvm-svn: 208132
 2014-05-06 21:20:29 +00:00
Eric Christopher
0e6f41c659 Fix odd formatting that snuck into last patch. 
llvm-svn: 208130
 2014-05-06 21:04:27 +00:00
Eric Christopher
dc5072d60e ArrayRef-ize the Feature and Processor tables for SubtargetFeatures. 
This removes arguments passed everywhere and allows the use of
standard iteration over lists.
Should be no functional change.

llvm-svn: 208127
 2014-05-06 20:23:04 +00:00
Eric Christopher
a9f3a5cb37 Have the SubtargetFeature help routine just not return a number and 
fall back to the normal path without a cpu. While doing this fix
llc to just exit when we don't have a module to process instead of
asserting.

llvm-svn: 208102
 2014-05-06 16:29:50 +00:00
Eric Christopher
7eba3f90ae Revert "Walk back commits for unused function parameters - they're still being" 
this reapplies 208012 and 208002.

llvm-svn: 208037
 2014-05-06 02:37:26 +00:00
Eric Christopher
4b33ec96d3 Walk back commits for unused function parameters - they're still being 
used via dragonegg for now.

llvm-svn: 208016
 2014-05-05 23:26:59 +00:00
Eric Christopher
80f12c2349 Remove a now unnecessary function since all calls have one version 
and inline it into its caller.

llvm-svn: 208012
 2014-05-05 22:36:07 +00:00
Eric Christopher
fbed044fa3 Remove a call to std::exit in a library. Make "Help" return 
a 0 as a default answer.

llvm-svn: 208009
 2014-05-05 22:01:47 +00:00
Eric Christopher
6beaa8adb8 Remove unused argument from AddFeature. 
llvm-svn: 208002
 2014-05-05 21:40:44 +00:00
Craig Topper
bb694de649 [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 
llvm-svn: 206129
 2014-04-13 04:57:38 +00:00
Artyom Skrobov
eab7515385 Reverting r199886 (Prevent repetitive warnings for unrecognized processors and features) 
llvm-svn: 200083
 2014-01-25 16:56:18 +00:00
Artyom Skrobov
a515896343 Prevent repetitive warnings for unrecognized processors and features 
llvm-svn: 199886
 2014-01-23 11:31:38 +00:00
Will Dietz
5357df6290 MC: Don't assume incoming StringRef's are null terminated. 
This can happen when processing command line arguments, which
are often stored as std::string's and later turned into
StringRef's via std::string::data().  Unfortunately this
is not guaranteed to return a null-terminated string
until C++11, causing breakage on platforms that don't do this.

llvm-svn: 192558
 2013-10-13 22:09:26 +00:00
Rafael Espindola
41d630f448 Fix the documentation of getDefaultSubtargetFeatures. 
Patch by David Nadlinger.

llvm-svn: 192098
 2013-10-07 13:34:05 +00:00
Benjamin Kramer
a74129adad Symbol hygiene: Make sure declarations and definitions match, make helper functions static. 
llvm-svn: 166376
 2012-10-20 12:53:26 +00:00
Craig Topper
54b69d4c0d Remove template from function that is only used with one type after r165092. 
llvm-svn: 165203
 2012-10-04 05:18:31 +00:00
Craig Topper
85e7a40232 Remove unused function that used to get itineraries from SubTargetFeatures. This is done from MCSubTargetInfo these days. 
llvm-svn: 165092
 2012-10-03 06:26:11 +00:00
Manman Ren
49d684e1e2 Release build: guard dump functions with 
"#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)"

No functional change. Update r163344.

llvm-svn: 163679
 2012-09-12 05:06:18 +00:00
Manman Ren
c3366ccecb Release build: guard dump functions with "ifndef NDEBUG" 
No functional change.

llvm-svn: 163344
 2012-09-06 19:55:56 +00:00
Roman Divacky
77198de4d6 Constify subtarget info properly so that we dont cast away the const in 
the SubtargetInfoKV tables. Found by gcc48 -Wcast-qual.

llvm-svn: 163251
 2012-09-05 21:43:57 +00:00
Jim Grosbach
dc1e36e9f5 Tidy up. Trailing whitespace. 
llvm-svn: 156602
 2012-05-11 01:41:30 +00:00
Benjamin Kramer
20baffb257 Replace (Lower|Upper)caseString in favor of StringRef's newest methods. 
llvm-svn: 143891
 2011-11-06 20:37:06 +00:00
Benjamin Kramer
cc863b2bb6 Let printf do the formatting instead aligning strings ourselves. 
While at it, merge some format strings.

llvm-svn: 142140
 2011-10-16 16:30:34 +00:00
Evan Cheng
91111d2706 Change createAsmParser to take a MCSubtargetInfo instead of triple, 
CPU, and feature string. Parsing some asm directives can change
subtarget state (e.g. .code 16) and it must be reflected in other
modules (e.g. MCCodeEmitter). That is, the MCSubtargetInfo instance
must be shared.

llvm-svn: 134795
 2011-07-09 05:47:46 +00:00
Evan Cheng
1a72add615 Compute feature bits at time of MCSubtargetInfo initialization. 
llvm-svn: 134606
 2011-07-07 07:07:08 +00:00
Evan Cheng
c88d6d402a Eliminate one extra conversion. 
llvm-svn: 134240
 2011-07-01 16:59:30 +00:00
Francois Pichet
92da450ae7 Another misuse of StringRef. MSVC is very sensitive to that kind of error. 
llvm-svn: 134236
 2011-07-01 09:23:41 +00:00
Rafael Espindola
968af4fee2 Fix use after free. 
llvm-svn: 134234
 2011-07-01 04:40:50 +00:00
Evan Cheng
d8e27a584e Switch SubtargetFeatures from std::string to StringRef. 
llvm-svn: 134219
 2011-07-01 00:23:10 +00:00
Evan Cheng
fe6e405e8c Fix the ridiculous SubtargetFeatures API where it implicitly expects CPU name to 
be the first encoded as the first feature. It then uses the CPU name to look up
features / scheduling itineray even though clients know full well the CPU name
being used to query these properties.

The fix is to just have the clients explictly pass the CPU name!

llvm-svn: 134127
 2011-06-30 01:53:36 +00:00
Evan Cheng
8264e272a9 Sink SubtargetFeature and TargetInstrItineraries (renamed MCInstrItineraries) into MC. 
llvm-svn: 134049
 2011-06-29 01:14:12 +00:00