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36a169e1a3
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Author SHA1 Message Date
Chris Lattner
36a169e1a3 remove dead variables 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28286 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-14 18:33:57 +00:00
Chris Lattner
76b8a33f4a Change token to match asmprinter output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28285 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-14 18:23:06 +00:00
Evan Cheng
3e246dd084 Backing out last check-in for now. It's causing an infinite loop gccas lencode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28284 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-14 06:46:03 +00:00
Chris Lattner
506efdaef6 Update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28283 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-14 02:05:19 +00:00
Chris Lattner
fd50080fe2 This is a proper fix for the compiler warning. A termination condition is 
not needed, as it can never be reached: an edge must exist.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28282 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-14 02:01:22 +00:00
Reid Spencer
ca960c9946 Fix an infinite loop bug that Vladimir Prus identified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28281 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 18:11:32 +00:00
Reid Spencer
c7365a9ec9 Add a #include <cassert> for situations where Casting.h is used standalone. 
Patch contributed by Vladimir Prus.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28280 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 17:50:38 +00:00
Evan Cheng
8820ad5154 Fixing 2006-05-01-SchedCausingSpills.ll; some clean up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28279 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 08:22:24 +00:00
Evan Cheng
ee00a1d12c Revert an un-intended change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28278 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 05:53:47 +00:00
Reid Spencer
dd73e7fa09 Don't try to reference uninitialized data. Make sure we can find "nm". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28277 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 02:48:45 +00:00
Reid Spencer
d42037abd7 For PR741: 
Update documentation to reflect current LLVM reality:
  + LLVMAlpha.o, LLVMIA64.o
  - Skeleton, execve, ProfilePaths
Also, regenerate the library dependency information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28276 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 02:22:01 +00:00
Chris Lattner
033aaaf451 Add/Sub/Mul are safe to promote here as well. Incrementing a single-bit 
bitfield now gives this code:

_plus:
        lwz r2, 0(r3)
        rlwimi r2, r2, 0, 1, 31
        xoris r2, r2, 32768
        stw r2, 0(r3)
        blr

instead of this:

_plus:
        lwz r2, 0(r3)
        srwi r4, r2, 31
        slwi r4, r4, 31
        addis r4, r4, -32768
        rlwimi r2, r4, 0, 0, 0
        stw r2, 0(r3)
        blr

this can obviously still be improved.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28275 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 02:16:08 +00:00
Chris Lattner
a2d079a776 Merge identical code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28274 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 02:11:14 +00:00
Chris Lattner
70074e00a2 Implement simple promotion for cast elimination in instcombine. This is 
currently very limited, but can be extended in the future.  For example,
we now compile:

uint %test30(uint %c1) {
        %c2 = cast uint %c1 to ubyte
        %c3 = xor ubyte %c2, 1
        %c4 = cast ubyte %c3 to uint
        ret uint %c4
}

to:

_xor:
        movzbl 4(%esp), %eax
        xorl $1, %eax
        ret

instead of:

_xor:
        movb $1, %al
        xorb 4(%esp), %al
        movzbl %al, %eax
        ret

More impressively, we now compile:

struct B { unsigned bit : 1; };
void xor(struct B *b) { b->bit = b->bit ^ 1; }

To (X86/PPC):

_xor:
        movl 4(%esp), %eax
        xorl $-2147483648, (%eax)
        ret
_xor:
        lwz r2, 0(r3)
        xoris r2, r2, 32768
        stw r2, 0(r3)
        blr

instead of (X86/PPC):

_xor:
        movl 4(%esp), %eax
        movl (%eax), %ecx
        movl %ecx, %edx
        shrl $31, %edx
        # TRUNCATE movb %dl, %dl
        xorb $1, %dl
        movzbl %dl, %edx
        andl $2147483647, %ecx
        shll $31, %edx
        orl %ecx, %edx
        movl %edx, (%eax)
        ret

_xor:
        lwz r2, 0(r3)
        srwi r4, r2, 31
        xori r4, r4, 1
        rlwimi r2, r4, 31, 0, 0
        stw r2, 0(r3)
        blr

This implements InstCombine/cast.ll:test30.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28273 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 02:06:03 +00:00
Chris Lattner
5250bae5ee New testcase for instcombine 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28272 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 02:00:07 +00:00
Chris Lattner
2144c25364 Remove some dead variables. 
Fix a nasty bug in the memcmp optimizer where we used the wrong variable!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28269 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 23:35:26 +00:00
Chris Lattner
a87e9cd069 Remove dead stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28268 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 23:32:01 +00:00
Chris Lattner
12d8f2bafe Fix build breakage :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28267 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 23:26:11 +00:00
Chris Lattner
98d0d7d6f0 More coverity fixes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28266 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 21:14:20 +00:00
Chris Lattner
03ea4c8326 Dead variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28265 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 21:12:22 +00:00
Chris Lattner
b65e7256ed Remove dead var, fix bad override. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28264 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 21:09:57 +00:00
Reid Spencer
3e41da29fb Don't use old-style casts. This prevents compiler warnings when CommandLine.h 
is used in projects that have stricter warning control than LLVM. This also
helps us find casts more easily if we ever need to.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28263 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 19:20:55 +00:00
Evan Cheng
3b6d56cab3 If the register allocator cannot find a register to spill, try the aliases. If 
that still fails (because all the register spill weights are inf), just grab
one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28262 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 19:07:46 +00:00
Evan Cheng
0bbac9ffd1 Remove dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28261 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 19:03:56 +00:00
Chris Lattner
095cc37e22 Fix accidentally committed patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28260 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 18:20:39 +00:00
Chris Lattner
666b042658 Actually override the right method. :) 
Bug identified by coverity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28259 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 18:19:25 +00:00
Chris Lattner
dd28ba2284 remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28258 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 18:17:25 +00:00
Chris Lattner
2b80e8d635 Fix iterator invalidation bug, identified by Coverity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28257 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 18:13:11 +00:00
Chris Lattner
bbea1245a1 Fix a hypothetical memory leak, identified by Coverity. In practice, this 
object is never deleted though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28256 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 18:10:12 +00:00
Chris Lattner
b5d9319bc5 Remove dead vars 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28255 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 18:06:45 +00:00
Chris Lattner
f1343c1b79 remove dead vars 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28254 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 18:04:28 +00:00
Chris Lattner
c485e55c65 Remove dead variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28253 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 18:02:04 +00:00
Chris Lattner
5eed34d208 Comment out dead variables 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28252 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 17:57:54 +00:00
Reid Spencer
ffb4d62720 When reading the symbol table, make sure to delete the ArchiveMember 
created by reading the symbol table.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28251 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 17:56:20 +00:00
Chris Lattner
9dcb780e23 Remove dead var 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28250 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 17:50:35 +00:00
Chris Lattner
82db0696a1 Remove dead variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28249 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 17:41:45 +00:00
Chris Lattner
b57b516f6d remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28248 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 17:33:59 +00:00
Chris Lattner
27aaa398ee Remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28247 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 17:31:21 +00:00
Chris Lattner
433698bbbc Avoid defining dead result 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28246 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 17:29:40 +00:00
Chris Lattner
b923b2e04b Remove dead return value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28245 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 17:28:36 +00:00
Chris Lattner
e41102bb61 Compile: 
%tmp152 = setgt uint %tmp144, %tmp149           ; <bool> [#uses=1]
        %tmp159 = setlt uint %tmp144, %tmp149           ; <bool> [#uses=1]
        %bothcond2 = or bool %tmp152, %tmp159           ; <bool> [#uses=1]

To setne, not setune, which causes an assertion fault.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28244 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 17:03:46 +00:00
Chris Lattner
0949ed5412 Fix PowerPC/2006-05-12-rlwimi-crash.ll 
Nate, please verify that if InsertMask is 0, rlwimi shouldn't be used.
This fixes the crash and causes no PPC testsuite regressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28243 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 16:29:37 +00:00
Chris Lattner
83cdf40144 new testcase for a recent rlwimi crash. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28242 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 16:28:13 +00:00
Evan Cheng
9812f1ca97 Noop instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28241 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 07:47:00 +00:00
Evan Cheng
d9d4518a86 Unused instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28240 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 07:42:01 +00:00
Owen Anderson
2577c22131 Add a method to generate a string representation from a TargetData. 
This continues the work on PR 761.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28239 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 07:01:44 +00:00
Owen Anderson
07000c6f01 Refactor a bunch of includes so that TargetMachine.h doesn't have to include 
TargetData.h.  This should make recompiles a bit faster with my current
TargetData tinkering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28238 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 06:33:49 +00:00
Owen Anderson
571a13f3e7 Fix some tabbing issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28237 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 06:06:55 +00:00
Evan Cheng
647c15e58e Backing out fix for PR770. Need to re-apply it after live range splitting is possible 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28236 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 06:06:34 +00:00
Evan Cheng
626da3d9ae Duh. That could take a long time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28235 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 06:05:18 +00:00