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237 Commits

Author SHA1 Message Date
Chris Lattner
314286f6bd new testcase for PR1845 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45795 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 00:30:38 +00:00
Gordon Henriksen
572742e876 Setting GlobalDirective in TargetAsmInfo by default rather than 
providing a misleading facility. It's used once in the MIPS backend
and hardcoded as "\t.globl\t" everywhere else.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45676 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 02:31:11 +00:00
Gordon Henriksen
8fa8929177 With this patch, the LowerGC transformation becomes the 
ShadowStackCollector, which additionally has reduced overhead with
no sacrifice in portability.

Considering a function @fun with 8 loop-local roots,
ShadowStackCollector introduces the following overhead
(x86):

; shadowstack prologue
        movl    L_llvm_gc_root_chain$non_lazy_ptr, %eax
        movl    (%eax), %ecx
        movl    $___gc_fun, 20(%esp)
        movl    $0, 24(%esp)
        movl    $0, 28(%esp)
        movl    $0, 32(%esp)
        movl    $0, 36(%esp)
        movl    $0, 40(%esp)
        movl    $0, 44(%esp)
        movl    $0, 48(%esp)
        movl    $0, 52(%esp)
        movl    %ecx, 16(%esp)
        leal    16(%esp), %ecx
        movl    %ecx, (%eax)

; shadowstack loop overhead
        (none)

; shadowstack epilogue
        movl    48(%esp), %edx
        movl    %edx, (%ecx)

; shadowstack metadata
        .align  3
___gc_fun:                              # __gc_fun
        .long   8
        .space  4

In comparison to LowerGC:

; lowergc prologue
        movl    L_llvm_gc_root_chain$non_lazy_ptr, %eax
        movl    (%eax), %ecx
        movl    %ecx, 48(%esp)
        movl    $8, 52(%esp)
        movl    $0, 60(%esp)
        movl    $0, 56(%esp)
        movl    $0, 68(%esp)
        movl    $0, 64(%esp)
        movl    $0, 76(%esp)
        movl    $0, 72(%esp)
        movl    $0, 84(%esp)
        movl    $0, 80(%esp)
        movl    $0, 92(%esp)
        movl    $0, 88(%esp)
        movl    $0, 100(%esp)
        movl    $0, 96(%esp)
        movl    $0, 108(%esp)
        movl    $0, 104(%esp)
        movl    $0, 116(%esp)
        movl    $0, 112(%esp)

; lowergc loop overhead
        leal    44(%esp), %eax
        movl    %eax, 56(%esp)
        leal    40(%esp), %eax
        movl    %eax, 64(%esp)
        leal    36(%esp), %eax
        movl    %eax, 72(%esp)
        leal    32(%esp), %eax
        movl    %eax, 80(%esp)
        leal    28(%esp), %eax
        movl    %eax, 88(%esp)
        leal    24(%esp), %eax
        movl    %eax, 96(%esp)
        leal    20(%esp), %eax
        movl    %eax, 104(%esp)
        leal    16(%esp), %eax
        movl    %eax, 112(%esp)

; lowergc epilogue
        movl    48(%esp), %edx
        movl    %edx, (%ecx)

; lowergc metadata
        (none)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45670 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 01:30:53 +00:00
Duncan Sands
b027fa001f Fix PR1833 - eh.exception and eh.selector return two 
values, which means doing extra legalization work.
It would be easier to get this kind of thing right if
there was some documentation...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45472 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-31 18:35:50 +00:00
Gordon Henriksen
e86ce7d94a Tests for changes made in r45356, where IPO optimizations would drop 
collector algorithms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45357 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-26 02:47:37 +00:00
Gordon Henriksen
0e13821c96 GC poses hazards to the inliner. Consider: 
define void @f() {
            ...
            call i32 @g()
            ...
    }

    define void @g() {
            ...
    }

The hazards are:

  - @f and @g have GC, but they differ GC. Inlining is invalid. This
    may never occur.
  - @f has no GC, but @g does. g's GC must be propagated to @f.

The other scenarios are safe:

  - @f and @g have the same GC.
  - @f and @g have no GC.
  - @g has no GC.

This patch adds inliner checks for the former two scenarios.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45351 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-25 03:10:07 +00:00
Gordon Henriksen
e1433f24cf Noting and enforcing that GC intrinsics are valid only within a 
function with GC.

This will catch the error when the inliner inlines a function with
GC into a caller with no GC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45350 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-25 02:31:26 +00:00
Gordon Henriksen
27acd3a999 Adjusting verification of "llvm.gc*" intrinsic prototypes to match 
LangRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45349 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-25 02:02:10 +00:00
Duncan Sands
fd7b326bea Make invokes of inline asm legal. Teach codegen 
how to lower them (with no attempt made to be
efficient, since they should only occur for
unoptimized code).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45108 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-17 18:08:19 +00:00
Gordon Henriksen
80a75bfae9 Adding a collector name attribute to Function in the IR. These 
methods are new to Function:

  bool hasCollector() const;
  const std::string &getCollector() const;
  void setCollector(const std::string &);
  void clearCollector();

The assembly representation is as such:

  define void @f() gc "shadow-stack" { ...

The implementation uses an on-the-side table to map Functions to 
collector names, such that there is no overhead. A StringPool is 
further used to unique collector names, which are extremely
likely to be unique per process.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 03:18:06 +00:00
Gordon Henriksen
38200692fa Upgrading this test to 2.0 .ll syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44738 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-09 15:03:01 +00:00
Chris Lattner
4b341b4178 upgrade this test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44405 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 18:22:12 +00:00
Chris Lattner
789db09cde Fix a crash on invalid code due to memcpy lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44378 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 22:14:42 +00:00
Duncan Sands
baccd5872e Fix a bug in which node A is replaced by node B, but later 
node A gets back into the DAG again because it was hiding in
one of the node maps: make sure that node replacement happens
in those maps too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44263 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-21 16:43:19 +00:00
Evan Cheng
d18ba7c8de -pre-RA-sched=none, simple, simple-noitin are gone. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42505 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-01 22:17:20 +00:00
Dan Gohman
ea81d095dc Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42263 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 15:50:11 +00:00
Gordon Henriksen
8c33da5dc4 Fix for PR1633: Verifier doesn't fully verify GC intrinsics 
LLVM now enforces the following prototypes for the write barriers:

<ty>* @llvm.gcread(<ty2>*, <ty>**)
void @llvm.gcwrite(<ty>*, <ty2>*, <ty>**)

And for @llvm.gcroot, the first stack slot is verified to be an alloca or a 
bitcast of an alloca.

Fixes test/CodeGen/Generic/GC/lower_gcroot.ll, which violated these.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42051 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 20:30:04 +00:00
Anton Korobeynikov
8806c7b1f5 Split eh.select / eh.typeid.for intrinsics into i32/i64 versions. This is needed, because they just "mark" register 
liveins and we let frontend solve type issue, not lowering code :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41763 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 11:39:35 +00:00
Dale Johannesen
c2ec2baf3d Change all floating constants that are not exactly 
representable to use hex format.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41722 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-05 17:50:36 +00:00
Evan Cheng
4e9c473c4d Fix a gcroot lowering bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41668 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-01 02:00:51 +00:00
Duncan Sands
56fe9b7396 Remove this test as it is too hard to fix after the 
latest EH changes, and in any case it is hard to
imagine how the original bug could be reintroduced.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41497 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-27 17:08:14 +00:00
Duncan Sands
e22814b0a8 Now that we don't output cleanups by default, the action 
offset needs to be adjusted in this test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41490 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-27 16:30:05 +00:00
Chris Lattner
09ec1b0583 Allow target constants to be illegal types. The target should 
know how to handle them.  This fixes 
test/CodeGen/Generic/asm-large-immediate.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41388 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-25 01:00:22 +00:00
Dan Gohman
43c3db37f6 Convert tests using "grep -c ... | grep ..." to use the count script. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41100 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 13:49:33 +00:00
Dan Gohman
28beeeac4d Convert tests using "| wc -l | grep ..." to use the count script. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41097 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 13:36:28 +00:00
Chandler Carruth
6994040a95 This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future. 
This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40807 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 01:51:18 +00:00
Dan Gohman
b1576f56c8 Change the x86 assembly output to use tab characters to separate the 
mnemonics from their operands instead of single spaces. This makes the
assembly output a little more consistent with various other compilers
(f.e. GCC), and slightly easier to read. Also, update the regression
tests accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40648 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-31 20:11:57 +00:00
Tanya Lattner
c462d25776 Don't use * in XFAIL line unless you want it to XFAIL on everything. I don't believe you can use true regular expressions here. It will just look for those keywords. Please test this on sparc and see if they still are xfailed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39975 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 18:08:32 +00:00
Gabor Greif
6bd7ada32d XFAIL these on sparc-solaris 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39969 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 10:25:31 +00:00
Reid Spencer
cb5da4a8b6 For PR1558: 
Move tests that have C/C++ sources into the appropriate directory. This
allows them to be selected for testing based on whether llvm-gcc is
present or not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39963 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 06:20:38 +00:00
Dan Gohman
318f0dee83 Remove the trailing semicolon from function declarations in LLVM, 
where it's interpreted as a comment, not part of the syntax.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39920 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 13:37:30 +00:00
Dale Johannesen
e7e7d0d7e3 Skeleton of post-RA scheduler; doesn't do anything yet. 
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39816 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:13:54 +00:00
Chris Lattner
4857b1b320 remove this bogus t-t 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38464 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 17:31:07 +00:00
Duncan Sands
d14526cf33 Test that byte offsets are used to index into the list 
of filter ids, and not simply the id index.  Testing
this requires at least 128 type infos!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37941 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 12:38:27 +00:00
Chris Lattner
02f7906b2f avoid ambiguity in target selection 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37927 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-05 22:16:19 +00:00
John Criswell
e644ef7b09 Convert .cvsignore files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37801 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 16:35:07 +00:00
Duncan Sands
f40708223e Workaround for PR1508. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37597 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 19:04:19 +00:00
Duncan Sands
0bad514df1 "Simplified" testcase for PR1422. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37462 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 09:59:53 +00:00
Dale Johannesen
b68f3db93b Test assumes tail merging is off; this must now be explicit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37286 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 17:18:05 +00:00
Chris Lattner
e1e9bc7e09 add testcase for 128-bit add/sub 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37170 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-17 18:22:37 +00:00
Lauro Ramos Venancio
b5bb7ffa9c Fix an infinite recursion in GetNegatedExpression. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37086 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-15 17:05:43 +00:00
Chris Lattner
938ef6f0eb move to CodeGen/ARM/2007-05-07-tailmerge-1.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36918 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-08 02:13:52 +00:00
Evan Cheng
6b95e98e50 Fix test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36911 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-07 21:38:05 +00:00
Dale Johannesen
7d33b4c59b Handle some non-exit blocks in tail merging. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36907 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-07 20:57:21 +00:00
Chris Lattner
23f7f5898e the sparc v8 backend handles this correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36801 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-05 22:12:57 +00:00
Chris Lattner
2db395600f unxfail this, llc doesn't support this feature yet, so don't run it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36796 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-05 21:51:34 +00:00
Duncan Sands
9426caa8b2 Check that the right eh personality function is used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36788 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-05 20:22:08 +00:00
Duncan Sands
f0799fe155 Test that the eh lowering code can handle constant folded bitcasts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36746 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-04 17:14:42 +00:00
Reid Spencer
9dd446c561 Split target dependent test portions to target-specific directories. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36612 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-01 02:56:15 +00:00
Chris Lattner
045a9278b8 testcase for PR1228 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36601 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-30 23:34:46 +00:00