RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-25 04:02:41 +01:00
Code Issues Projects Releases Wiki Activity
33,928 Commits 4 Branches 5 Tags 704 MiB
f901915207
Commit Graph

19772 Commits

Author SHA1 Message Date
Evan Cheng
f901915207 Fix for PR1596: AdjustCopiesBackFrom() should conservatively check if any of its sub-registers may overlap with the interval of the copy that's being coalesced. 
llvm-svn: 41084
 2007-08-14 23:19:28 +00:00
Evan Cheng
0fbe2a0ec4 If a MI's def is remat as well as spilled, and the store is later deemed dead, mark the def operand as isDead. 
llvm-svn: 41083
 2007-08-14 20:23:13 +00:00
Devang Patel
7ff808f08e Fix dominance frontier update while removing blocks. 
llvm-svn: 41082
 2007-08-14 18:35:57 +00:00
Owen Anderson
b970937b06 Eliminate PHI nodes with constant values during normal GVN processing, even when 
they're not related to eliminating a load.

llvm-svn: 41081
 2007-08-14 18:33:27 +00:00
Owen Anderson
d9a7b61a64 Be more aggressive in pruning unnecessary PHI nodes when doing PHI construction. 
llvm-svn: 41080
 2007-08-14 18:16:29 +00:00
Owen Anderson
c855195b2f Make GVN iterative. 
llvm-svn: 41078
 2007-08-14 18:04:11 +00:00
Owen Anderson
8d15350c4e Fix a case where GVN was failing to return true when it had, in fact, modified 
the function.

llvm-svn: 41077
 2007-08-14 17:59:48 +00:00
Devang Patel
833a8ea187 Assert sooner. Fix wordings. 
llvm-svn: 41075
 2007-08-14 16:53:52 +00:00
Evan Cheng
de24ad8897 If a spilled value is being reused and the use is a kill, that means there are 
no more uses within the MBB and the spilled value isn't live out of the MBB.
Then it's safe to delete the spill store.

llvm-svn: 41069
 2007-08-14 09:11:18 +00:00
Evan Cheng
886c1fe427 If a rematerializable def is not deleted, i.e. it is also spilled, check if the 
spilled value is available for reuse.

llvm-svn: 41067
 2007-08-14 05:42:54 +00:00
Evan Cheng
5b64e19e06 Kill info update bugs. 
llvm-svn: 41064
 2007-08-14 01:56:58 +00:00
Devang Patel
5d8b2b3293 Handle last value assignments. 
llvm-svn: 41063
 2007-08-14 01:30:57 +00:00
Devang Patel
55b6a8f212 StartValue is already calculated. 
llvm-svn: 41062
 2007-08-14 00:15:45 +00:00
Evan Cheng
215f802b75 Re-implement trivial rematerialization. This allows def MIs whose live intervals that are coalesced to be rematerialized. 
llvm-svn: 41060
 2007-08-13 23:45:17 +00:00
Evan Cheng
eef13203e7 Fix a typo pointd out by Maarten ter Huurne. 
llvm-svn: 41059
 2007-08-13 23:27:11 +00:00
Devang Patel
762259ba73 Preserve simple analysis. 
llvm-svn: 41054
 2007-08-13 22:22:13 +00:00
Devang Patel
e3ea62e49a Preserve dominator info. 
llvm-svn: 41053
 2007-08-13 22:13:24 +00:00
Devang Patel
993388b1ee Add methods to erase basic block entry. 
llvm-svn: 41052
 2007-08-13 22:10:29 +00:00
Devang Patel
d1d0316041 If NewBB dominates DestBB then DestBB is not part of NewBB's dominance frontier. 
llvm-svn: 41051
 2007-08-13 21:59:17 +00:00
Chris Lattner
80032c89e6 move assertion into mutex guard, a partial fix for PR1606. 
llvm-svn: 41050
 2007-08-13 20:08:16 +00:00
Dan Gohman
2390ff5060 When x86 addresses matching exceeds its recursion limit, check to 
see if the base register is already occupied before assuming it can be
used. This fixes bogus code generation in the accompanying testcase.

llvm-svn: 41049
 2007-08-13 20:03:06 +00:00
Chris Lattner
7dfec1ee54 Fix PR1607 
llvm-svn: 41048
 2007-08-13 18:42:37 +00:00
Chris Lattner
8674db5fbf Constant fold: getelementptr (i8* inttoptr (i64 1 to i8*), i32 -1) 
Into: inttoptr (i64 0 to i8*)  -> null

This occurs in the example in PR1602.  With this fixed, we now compile
the example in PR1602 into fully "devirtualized" code:

define void @_Z1g1S(%struct.S* noalias  %s) {
entry:        %tmp131415 = getelementptr %struct.S* %s, i32 0, i32 0          ; <i32 (...)***> [#uses=1]        %tmp16 = load i32 (...)*** %tmp131415, align 4          ; <i32 (...)**> [#uses=1]
        %tmp26277 = load i32 (...)** %tmp16             ; <i32 (...)*> [#uses=1]
        %tmp2829 = bitcast i32 (...)* %tmp26277 to void (%struct.S*)*           ; <void (%struct.S*)*> [#uses=1]
        tail call void %tmp2829( %struct.S* %s )
        ret void
}

This still has the vtable dispatch (as required) but does not have any pointer
to method cruft left.

llvm-svn: 41046
 2007-08-13 17:09:08 +00:00
Evan Cheng
54b799dc76 Kill info update bugs. 
llvm-svn: 41043
 2007-08-13 07:12:23 +00:00
Devang Patel
63d1affed8 Split loops and do CFG cleanup. 
llvm-svn: 41029
 2007-08-12 07:02:51 +00:00
Reid Spencer
c71871ba30 Remove unused variables. 
llvm-svn: 41028
 2007-08-12 04:45:36 +00:00
Evan Cheng
3b211635e8 No need to remove dead range from soon-to-be-dead live interval. Its val# may be out of whack. 
llvm-svn: 41024
 2007-08-12 01:26:19 +00:00
Chris Lattner
afb3c33c2a constant fold ptrtoint(inttoptr) with target data when available. This allows 
us to fold the entry block of PR1602 to false instead of:

br i1 icmp eq (i32 and (i32 ptrtoint (void (%struct.S*)* inttoptr (i64
1 to void (%struct.S*)*) to i32), i32 1), i32 0), label %cond_next, label
%cond_true

llvm-svn: 41023
 2007-08-11 23:49:01 +00:00
Chris Lattner
50f25115cd Transform a load from an undef/zero global into an undef/global even if we 
have complex pointer manipulation going on.  This allows us to compile
stuff like this:

__m128i foo(__m128i x){
                static const unsigned int c_0[4] = { 0, 0, 0, 0 };
                __m128i v_Zero = _mm_loadu_si128((__m128i*)c_0);
                x  = _mm_unpacklo_epi8(x,  v_Zero);
                return x;
}

into:

_foo:
        xorps   %xmm1, %xmm1
        punpcklbw       %xmm1, %xmm0
        ret

llvm-svn: 41022
 2007-08-11 18:48:48 +00:00
Chris Lattner
fedbfd5f47 expand a note 
llvm-svn: 41021
 2007-08-11 18:19:07 +00:00
Chris Lattner
5f098dbbe5 With evan's explicit flag representation, hopefully we will finally be 
able to 3-addressify away stuff like this:

        movl    %ecx, %eax
        decl    %eax

llvm-svn: 41020
 2007-08-11 18:16:46 +00:00
Reid Spencer
da7379cc57 Fix a comment typo noticed by Sandro Magi. 
llvm-svn: 41018
 2007-08-11 15:57:56 +00:00
Bill Wendling
e611c96a3c 64-bit SSSE3 ops that use MMX registers don't require 16-byte alignment. 
Make a 'memop' pattern just for them.

llvm-svn: 41017
 2007-08-11 09:52:53 +00:00
Evan Cheng
8968affb6d Code to maintain kill information during register coalescing. 
llvm-svn: 41016
 2007-08-11 00:59:19 +00:00
Christopher Lamb
7e52a97df5 Use subregs to improve any_extend code generation when feasible. 
llvm-svn: 41013
 2007-08-10 22:22:41 +00:00
Christopher Lamb
450f6815b9 Increase efficiency of sign_extend_inreg by using subregisters for truncation. As the README suggests sign_extend_subreg is selected to (sext(trunc)). 
llvm-svn: 41010
 2007-08-10 21:48:46 +00:00
Christopher Lamb
4e6cae3eae Edit README in light of previous LEA16 commit. 
llvm-svn: 41009
 2007-08-10 21:29:05 +00:00
Christopher Lamb
7196f0d724 Add 2-addr to 3-addr promotion code that allows 32-bit LEA to be used via subregisters when 16-bit LEA is disabled. 
llvm-svn: 41007
 2007-08-10 21:18:25 +00:00
Christopher Lamb
e0c9bd8d2e Move isSubRegOf into MRegisterInfo. Fix a missed move elimination in LowerSubregs and add more debugging output there. 
llvm-svn: 41005
 2007-08-10 21:11:55 +00:00
Devang Patel
fa7277dd34 Do not overuse std::string. Pass around char * directly. 
llvm-svn: 41001
 2007-08-10 18:29:32 +00:00
Devang Patel
c8cff19c2e Clone loop. 
llvm-svn: 40998
 2007-08-10 18:07:13 +00:00
Devang Patel
d412a2a0ed Add utility to clone loops. 
llvm-svn: 40997
 2007-08-10 17:59:47 +00:00
Chris Lattner
de900e3b6c add Value::getNameStart/getNameLen() accessors. 
llvm-svn: 40989
 2007-08-10 15:34:35 +00:00
Dan Gohman
f18e94535f Fix EXTRACT_ELEMENT, EXTRACT_SUBVECTOR, and EXTRACT_VECTOR_ELT to 
use an intptr ValueType instead of i32 for the index operand in
getCopyToParts.

llvm-svn: 40987
 2007-08-10 14:59:38 +00:00
Rafael Espindola
b20b9e985a propagate struct size and alignment of byval arguments to the DAG 
llvm-svn: 40986
 2007-08-10 14:44:42 +00:00
Bill Wendling
d0bee665d3 For kicks, I though it would be fun to use the correct opcode. 
llvm-svn: 40985
 2007-08-10 09:00:17 +00:00
Bill Wendling
55c3dc2409 Adding SSSE3 intrinsics. 
llvm-svn: 40982
 2007-08-10 06:22:27 +00:00
Chris Lattner
de5f6f921a minor simplifications. 
llvm-svn: 40981
 2007-08-10 06:22:25 +00:00
Chris Lattner
bbe3b1dbee avoid copying strings. 
llvm-svn: 40980
 2007-08-10 06:17:04 +00:00
Devang Patel
b1160475fd Remove unncessary duplication. 
llvm-svn: 40979
 2007-08-10 00:59:03 +00:00