OSchip
/
llvm-project
mirror of https://github.com/THU-DSP-LAB/llvm-project.git
13
0
Fork 6
Code Issues Packages Projects Releases Wiki Activity
120,948 Commits 31 Branches 0 Tags 2.2 GiB
Commit Graph

122 Commits

Author SHA1 Message Date
Chris Lattner 0256be96f2 continue making the world safe for ConstantDataVector. At this point, 
we should (theoretically optimize and codegen ConstantDataVector as well
as ConstantVector.

llvm-svn: 149116
 2012-01-27 03:08:05 +00:00
Chris Lattner fa77500d96 Continue improving support for ConstantDataAggregate, and use the 
new methods recently added to (sometimes greatly!) simplify code.

llvm-svn: 149024
 2012-01-26 02:32:04 +00:00
Nadav Rotem 3924cb0267 Add support for vectors of pointers. 
llvm-svn: 145801
 2011-12-05 06:29:09 +00:00
Chad Rosier 43a33066b4 Fix a few more places where TargetData/TargetLibraryInfo is not being passed. 
Add FIXMEs to places that are non-trivial to fix.

llvm-svn: 145661
 2011-12-02 01:26:24 +00:00
Chad Rosier e6de63dfc5 Last bit of TargetLibraryInfo propagation. Also fixed a case for TargetData 
where it appeared beneficial to pass.
More of rdar://10500969

llvm-svn: 145630
 2011-12-01 21:29:16 +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
Benjamin Kramer 1f97a5a671 Remove all remaining uses of Value::getNameStr(). 
llvm-svn: 144648
 2011-11-15 16:27:03 +00:00
Eli Friedman a49b828f8f Make sure we use the right insertion point when instcombine replaces a PHI with another instruction. (Specifically, don't insert an arbitrary instruction before a PHI.) Fixes PR11275. 
llvm-svn: 143437
 2011-11-01 04:49:29 +00:00
Bill Wendling c68c8cb8d4 Add support for the Objective-C personality function to the instruction 
combining of the landingpad instruction. The ObjC personality function acts
almost identically to the C++ personality function. In particular, it uses
"null" as a "catch-all" value.

llvm-svn: 142256
 2011-10-17 21:20:24 +00:00
Chandler Carruth 3e8aa65bc2 Add a routine to swap branch instruction operands, and update any 
profile metadata at the same time. Use it to preserve metadata attached
to a branch when re-writing it in InstCombine.

Add metadata to the canonicalize_branch InstCombine test, and check that
it is tranformed correctly.

Reviewed by Nick Lewycky!

llvm-svn: 142168
 2011-10-17 01:11:57 +00:00
Jim Grosbach e7abae0442 Re-commit 141203, but much more conservative. 
Just pull the instruction name, but don't change the order of anything
else. That keeps --debug happy and non-crashing, but doesn't change
how the worklist gets built.

llvm-svn: 141210
 2011-10-05 20:53:43 +00:00
Jim Grosbach 8f9acfac89 Revert 141203. InstCombine is looping on unit tests. 
llvm-svn: 141209
 2011-10-05 20:44:29 +00:00
Jim Grosbach e37e030137 Update InstCombine worklist after instruction transform is complete. 
When updating the worklist for InstCombine, the Add/AddUsersToWorklist
functions may access the instruction(s) being added, for debug output for
example. If the instructions aren't yet added to the basic block, this
can result in a crash. Finish the instruction transformation before
adjusting the worklist instead.

rdar://10238555

llvm-svn: 141203
 2011-10-05 20:05:00 +00:00
Duncan Sands 5c05579f94 Inlining often produces landingpad instructions with repeated 
catch or repeated filter clauses.  Teach instcombine a bunch
of tricks for simplifying landingpad clauses.  Currently the
code only recognizes the GNU C++ and Ada personality functions,
but that doesn't stop it doing a bunch of "generic" transforms
which are hopefully fine for any real-world personality function.
If these "generic" transforms turn out not to be generic, they
can always be conditioned on the personality function.  Probably
someone should add the ObjC++ personality function.  I didn't as
I don't know anything about it.

llvm-svn: 140852
 2011-09-30 13:12:16 +00:00
Eli Friedman 95031ed837 Clean up uses of switch instructions so they are not dependent on the operand ordering. Patch by Stepan Dyatkovskiy. 
llvm-svn: 140803
 2011-09-29 20:21:17 +00:00
Bill Wendling 321fb37773 Use Duncan's patch to delete the instructions in reverse order (minus the landingpad and terminator). 
llvm-svn: 139090
 2011-09-04 09:43:36 +00:00
Bill Wendling a336e70573 Update comments to reflect reality. 
llvm-svn: 139023
 2011-09-02 18:43:33 +00:00
Bill Wendling a3ba6d3b80 Reduce indentation. No functionality change. 
llvm-svn: 138968
 2011-09-01 21:29:49 +00:00
Bill Wendling bf8280ff27 Change worklist driven deletion to be an iterative process. 
Duncan noticed this!

llvm-svn: 138967
 2011-09-01 21:28:33 +00:00
Bill Wendling a617c32745 Resubmit with fix. Properly remove the instructions except for landingpad, which should be removed only when its invokes are. 
llvm-svn: 138932
 2011-09-01 01:28:11 +00:00
Bill Wendling 9f7cf20e60 Submitted this too early. 
llvm-svn: 138931
 2011-09-01 01:18:33 +00:00
Bill Wendling 2d1f11f743 Don't DCE the landingpad instruction. 
The landingpad instruction can be removed only when its invokes are removed.

llvm-svn: 138930
 2011-09-01 01:16:58 +00:00
Bill Wendling a9ee09f4be Revert r137655. There is some question about whether the 'landingpad' 
instruction should be marked as potentially reading and/or writing memory.

llvm-svn: 137863
 2011-08-17 20:36:44 +00:00
Bill Wendling 8ddfc09e7a Use the getFirstInsertionPt() method instead of getFirstNonPHI + an 'isa<>' 
check for a LandingPadInst.

llvm-svn: 137745
 2011-08-16 20:45:24 +00:00
Bill Wendling 91d4e9edec Don't sink the instruction to before a landingpad instruction. 
llvm-svn: 137672
 2011-08-15 22:53:05 +00:00
Eli Friedman 8bc586e770 Update instcombine for atomic load/store. 
llvm-svn: 137664
 2011-08-15 22:09:40 +00:00
Bill Wendling e86965ee19 Duncan pointed out that the LandingPadInst might read memory. (It might also 
write to memory.) Marking it as such makes some checks for immobility go away.

llvm-svn: 137655
 2011-08-15 21:14:31 +00:00
Bill Wendling dd94d3426b Don't try to sink the landingpad instruction. It's immobile. 
llvm-svn: 137629
 2011-08-15 18:23:40 +00:00
Nick Lewycky 746e317953 This transform is not safe. Thanks to Eli for pointing that out! 
llvm-svn: 137575
 2011-08-14 04:51:49 +00:00
Nick Lewycky ae13df60a6 Don't attempt to add 'nsw' when intermediate instructions had no such guarantee. 
llvm-svn: 137572
 2011-08-14 03:41:33 +00:00
Nick Lewycky de49278c26 Teach instcombine to preserve the nsw bit by doing an after-the-fact analysis 
when combining add and sub instructions. Patch by Pranav Bhandarkar!

llvm-svn: 137570
 2011-08-14 01:45:19 +00:00
Nick Lewycky d405b7e2ae Small cleanups: 
- use SmallVectorImpl& for the function argument.
  - ignore the operands on the GEP, even if they aren't constant! Much as we
    pretend the malloc succeeds, we pretend that malloc + whatever-you-GEP'd-by
    is not null. It's magic!

llvm-svn: 136757
 2011-08-03 01:11:40 +00:00
Nick Lewycky 50f4966ceb Fix logical error when detecting lifetime intrinsics. 
Don't replace a gep/bitcast with 'undef' because that will form a "free(undef)"
which in turn means "unreachable". What we wanted was a no-op. Instead, analyze
the whole tree and look for all the instructions we need to delete first, then
delete them second, not relying on the use_list to stay consistent.

llvm-svn: 136752
 2011-08-03 00:43:35 +00:00
Nick Lewycky e8ae02dfb9 Teach InstCombine that lifetime intrincs aren't a real user on the result of a 
malloc call.

llvm-svn: 136732
 2011-08-02 22:08:01 +00:00
Rafael Espindola a3a44f3fc3 Add a small gep optimization I noticed was missing while reading some IL. 
llvm-svn: 136585
 2011-07-31 04:43:41 +00:00
Jay Foad d1b7849d49 Convert GetElementPtrInst to use ArrayRef. 
llvm-svn: 135904
 2011-07-25 09:48:08 +00:00
Jay Foad 040dd82f44 Convert IRBuilder::CreateGEP and IRBuilder::CreateInBoundsGEP to use 
ArrayRef.

llvm-svn: 135761
 2011-07-22 08:16:57 +00:00
Jay Foad b992a635fb Convert SimplifyGEPInst to use ArrayRef. 
llvm-svn: 135482
 2011-07-19 15:07:52 +00:00
Frits van Bommel 717d7edd3e Migrate LLVM and Clang to use the new makeArrayRef(...) functions where previously explicit non-default constructors were used. 
Mostly mechanical with some manual reformatting.

llvm-svn: 135390
 2011-07-18 12:00:32 +00:00
Chris Lattner 229907cd11 land David Blaikie's patch to de-constify Type, with a few tweaks. 
llvm-svn: 135375
 2011-07-18 04:54:35 +00:00
Jay Foad 57aa636794 Convert InsertValueInst and ExtractValueInst APIs to use ArrayRef. 
llvm-svn: 135040
 2011-07-13 10:26:04 +00:00
Rafael Espindola 403256763f Don't duplicate the work done by a gep into a "bitcast" if the gep has 
more than one use.

Fixes PR10322.

llvm-svn: 134883
 2011-07-11 03:43:47 +00:00
Eli Friedman 35211c6091 Final step of instcombine debuginfo; switch a couple more places over to InsertNewInstWith, and use setDebugLoc for the cases which can't be easily handled by the automated mechanisms. 
llvm-svn: 132167
 2011-05-27 00:19:40 +00:00
Eli Friedman 68aab459ae Make instcombine O(N) instead of O(N^2) in code where the same simplifiable constant is used many times. 
Part of rdar://9471075.

llvm-svn: 131979
 2011-05-24 18:52:07 +00:00
Eli Friedman 41e509a33d More instcombine cleanup, towards improving debug line info. 
llvm-svn: 131604
 2011-05-18 23:58:37 +00:00
Eli Friedman 96254a0d53 Start trying to make InstCombine preserve more debug info. The idea here is to set the debug location on the IRBuilder, which will be then right location in most cases. This should magically give many transformations debug locations, and fixing places which are missing a debug location will usually just means changing the code creating it to use the IRBuilder. 
As an example, the change to InstCombineCalls catches a common case where a call to a bitcast of a function is rewritten.

Chris, does this approach look reasonable?

llvm-svn: 131516
 2011-05-18 01:28:27 +00:00
Eli Friedman b9ed18f2cb Use ReplaceInstUsesWith instead of replaceAllUsesWith where appropriate in instcombine. 
llvm-svn: 131512
 2011-05-18 00:32:01 +00:00
Duncan Sands 085ad3b81a Stop trying to have instcombine preserve LCSSA form: this was not 
effective in avoiding recomputation of LCSSA form; the widespread
use of instsimplify (which looks through phi nodes) means it was
not preserving LCSSA form anyway; and instcombine is no longer
scheduled in the middle of the loop passes so this doesn't matter
anymore.

llvm-svn: 130301
 2011-04-27 10:55:12 +00:00
Nadav Rotem a069c6ce05 InstCombine optimizes gep(bitcast(x)) even when the bitcasts casts away address 
space info. We crash with an assert in this case. This change checks that the
address space of the bitcasted pointer is the same as the gep ptr.

llvm-svn: 128884
 2011-04-05 14:29:52 +00:00
Jay Foad 52131344a2 Remove PHINode::reserveOperandSpace(). Instead, add a parameter to 
PHINode::Create() giving the (known or expected) number of operands.

llvm-svn: 128537
 2011-03-30 11:28:46 +00:00