Commit Graph

24720 Commits

Author SHA1 Message Date
Chris Lattner
6460becced Improve comments, patch provided by Vladimir Prus!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28305 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-15 17:25:05 +00:00
Reid Spencer
f1925cb05c Doxygenify the comments, bringing the file level comments down to be attached
with the class that it documents. Patch suggested by Vladimir Prus.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28304 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-15 16:12:01 +00:00
Chris Lattner
f1d2337be1 Remove some dead code, identified by coverity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28303 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-15 05:48:32 +00:00
Owen Anderson
71a1872451 Add myself to the credits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28302 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-15 05:13:07 +00:00
Rafael Espindola
7bc59bc395 added a skeleton of the ARM backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28301 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 22:18:28 +00:00
Rafael Espindola
a3fdc02466 added myself to CREDITS.TXT
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28300 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 20:29:25 +00:00
Chris Lattner
c78098291e Free memory allocated by copy_env.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28299 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 19:17:28 +00:00
Chris Lattner
53bd1b9de7 print a nice error if bugpoint gets an error reading inputs. Bug identified
by coverity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28298 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 19:15:56 +00:00
Chris Lattner
f877e60616 Fix a bug found by inspection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28297 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 19:11:40 +00:00
Chris Lattner
c3bb700f36 improve comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28296 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 19:10:22 +00:00
Chris Lattner
b461131c99 Catch a potentially thrown exception.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28295 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 19:08:39 +00:00
Chris Lattner
59e8de386d Improve documentation on throwing, it is not complete still though. :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28294 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 19:07:07 +00:00
Chris Lattner
6f3ada51aa LoadLibraryPermanently can theoretically throw an exception. Do not propagate
it out of 'ExecutionEngine::create'.  This fixes a problem reported by coverity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28293 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 19:01:55 +00:00
Chris Lattner
f883eb94e0 Bug noticed, by inspection. Filename can be null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28292 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 19:00:53 +00:00
Chris Lattner
505f9c8839 This function is not documented as throwing an exception and callers don't
handle it.  Just silently fail.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28291 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 18:53:09 +00:00
Chris Lattner
5b5cc5f2a1 inverted logic, caught by coverity
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28290 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 18:46:52 +00:00
Chris Lattner
a0fcc3ee3f remove some dead code identified by coverity
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28289 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 18:45:44 +00:00
Chris Lattner
2f86362af8 Delete memory allocated by CopyEnv
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28288 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 18:38:13 +00:00
Chris Lattner
ff8953ae6d remove dead var
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28287 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-14 18:34:36 +00:00
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