Commit Graph

10398 Commits

Author SHA1 Message Date
Chris Lattner
7059f2e76b Fold PHI nodes of constants which are only used by a single cast. This implements
phi.ll:test4


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11494 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-16 05:07:08 +00:00
Chris Lattner
d8bed768ab A new testcase for a situation that occurs in 181.mcf
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11493 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-16 05:06:36 +00:00
Chris Lattner
26ca7e145e Teach LLVM to unravel the "swap idiom". This implements:
Regression/Transforms/InstCombine/xor.ll:test20


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11492 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-16 03:54:20 +00:00
Chris Lattner
72695f7bb7 Add a test for the "swap idiom", which LLVM should be able to unravel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11491 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-16 03:53:44 +00:00
Chris Lattner
c317d39887 Implement Transforms/InstCombine/xor.ll:test19
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11490 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-16 01:20:27 +00:00
Chris Lattner
a783c02749 Test for xor chains
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11489 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-16 01:19:52 +00:00
Chris Lattner
8709927af8 Fix a bug in the recent rewrite of the leakdetector that caused all of the
nightly tests to be really messed up.  The problem was that the new leakdetector
was depending on undefined behavior: the order of destruction of static objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11488 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 23:33:48 +00:00
Chris Lattner
2e6fcafff2 Document bug 240
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11487 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 23:09:07 +00:00
Chris Lattner
3a0628a29a Moving CBE tests to test/Regression/CodeGen/CBackend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11486 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 22:56:30 +00:00
Chris Lattner
74661c838c When the user runs 'llc foo.bc -march=c', write the output to "foo.cbe.c", not
to "foo.s".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11485 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 22:54:19 +00:00
Chris Lattner
e42cde2a14 Now that the lowerinvoke pass inserts calls to llvm.setjmp/llvm.longjmp, some
hacks can be banished.  Also, this gives us the opportunity to emit special code
for the setjmp/longjmps which alows the elimination of one GCC warning for every
setjmp/longjmp site (which is often THOUSANDS in C++ programs).  Yaay!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11484 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 22:51:47 +00:00
Chris Lattner
9b700f7951 By default, llvm.setjmp/llvm.longjmp intrinsics get lowered to their libc counterparts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11483 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 22:24:51 +00:00
Chris Lattner
860a16143c Instead of producing calls to setjmp/longjmp, produce uses of the
llvm.setjmp/llvm.longjmp intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11482 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 22:24:27 +00:00
Chris Lattner
588e72db75 Refactor code. Now the intrinsic lowering pass tries to recycle preexisting
prototypes, even if they don't precisely match what it would prefer to use.
This fixes: CBackend/2004-02-15-PreexistingExternals.llx compiling it into:

  ltmp_0_30 = memcpy(l14_C, 4u, 17);
  ltmp_1_30 = memcpy(((int *)l27_A), ((unsigned )(long)l27_B), ((int )123u));

instead of:

  ltmp_0_30 = memcpy(l14_C, 4u, 17);
  ltmp_1_27 = l43_memcpy(l27_A, l27_B, 123u);

Which does the wrong thing as you could imagine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11481 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 22:16:39 +00:00
Chris Lattner
b83530f956 New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11480 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 22:14:46 +00:00
Alkis Evlogimenos
f11800b718 This pass should not require phi elimination or live variable
analysis. It should only preserve them and update LiveVariables if it
already ran.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11479 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 21:50:32 +00:00
Chris Lattner
5aaf1d2820 Finegrainify namespacification
Remove one of the operands of a two operand instruction


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11478 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 21:38:28 +00:00
Alkis Evlogimenos
859a18b583 Make dense maps keyed on physical registers smallerusing
MRegisterInfo::getNumRegs() instead of
MRegisterInfo::FirstVirtualRegister.

Also use MRegisterInfo::is{Physical,Virtual}Register where
appropriate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11477 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 21:37:17 +00:00
Alkis Evlogimenos
843b160a20 Eliminate the use of spill (reserved) registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11476 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 10:24:21 +00:00
Chris Lattner
9f3c7f7da9 QOI bug fixed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11475 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 06:00:04 +00:00
Chris Lattner
de512b5b2e Adjustments to support the new ConstantAggregateZero class
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11474 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 05:55:15 +00:00
Chris Lattner
cfb0fd2ce8 Add support for the new ConstantAggregateZero class
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11473 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 05:54:27 +00:00
Chris Lattner
dd2c82a427 Make the JIT zero out globals with memset instead of an element at a time. This
should speed it up a bit on a lot of programs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11472 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 05:54:06 +00:00
Chris Lattner
896481eaa8 No need to scan zero initializers. This should make DSA a bit faster.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11471 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 05:53:42 +00:00
Chris Lattner
40bbeb5d07 Add a new ConstantAggregateZero class, to fix PR239. This makes zero
initializers for constant structs and arrays take constant space, instead of
space proportinal to the number of elements.  This reduces the memory usage of
the LLVM compiler by hundreds of megabytes when compiling some nasty SPEC95
benchmarks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11470 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 05:53:04 +00:00
Chris Lattner
46ccf6d382 finegrainify namespacification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11469 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 05:52:36 +00:00
Chris Lattner
d6a185fde0 Bug fixed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11468 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 05:47:37 +00:00
Chris Lattner
ca705fa31d ConstantArray::get and ConstantStruct::get now just return pointers to
'Constant', instead of specific subclass pointers.  In the future, these will
return an instance of ConstantAggregateZero if all of the inputs are zeros.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11467 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 04:14:47 +00:00
Chris Lattner
04d1fb6df9 Remove dependence on return type of ConstantStruct::get
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11466 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 04:07:32 +00:00
Chris Lattner
371064481a Remove dependence on the return type of ConstantArray::get
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11463 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 04:05:58 +00:00
Chris Lattner
aab54da21c Keep a cache of non-abstract null arrays and structs. This speeds up llvm-dis
from 16.57 -> 13.46s on 129.compress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11462 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 02:46:46 +00:00
Chris Lattner
07b976bb9e Testcase for PR205: [llvmgcc] C front-end does not emit 'zeroinitializer' when possible
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11461 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 02:19:08 +00:00
Chris Lattner
8710da3c58 Test for actual support, not just for lack of crashage
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11460 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 01:21:39 +00:00
Chris Lattner
0e5b79c174 Implement llvm.(frame|return)address(0) correctly. They are used by the LLVM JIT, among other
applications


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11459 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 01:04:03 +00:00
Alkis Evlogimenos
b929bca027 Fix problem in DEBUG code. I could be pointing past the end and
dereferencing it causes an assertion error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11458 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 00:46:41 +00:00
Chris Lattner
1fda3700be New code quality fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11457 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 00:23:15 +00:00
Chris Lattner
d31dd3278f New testcase for PR237: [x86] wierd stack/frame pointer manipulation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11456 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 00:21:04 +00:00
Chris Lattner
96c3d2e2e7 Fix the 'have a framepointer' case, so that the frame pointer always points
to the old saved EBP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11455 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 00:15:37 +00:00
Chris Lattner
05d8350c12 Allow for fixed objects to reside in the local area, and if they don't to not
clobber them by allocating other objects in the same space!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11454 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 00:14:20 +00:00
Alkis Evlogimenos
c81efdc59c Add back machine code deleter pass until we get a MachineCode pass
that will be responsible for the creation of MachineFunctions and will
be required by all MachineFunctionPass passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11453 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 00:03:15 +00:00
Alkis Evlogimenos
b663d76f86 Modularize implementation of LeakDetector into a typed template
implementation class. This makes the code simpler and allows for more
types to be added easily. It also implements caching for generic
objects (it was only available for llvm objects).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11452 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 23:33:39 +00:00
Chris Lattner
3193556387 Add support for the 'pop' instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11451 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 21:06:02 +00:00
Chris Lattner
e9dd84ea8a There is no reason to align the stack pointer if there are no callees of this
function!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11450 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 20:11:07 +00:00
Chris Lattner
93799292c1 There is no reason to align the stack pointer if there are no callees of this function!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11449 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 20:10:59 +00:00
Chris Lattner
bb07ef97cf The prologue/epilogue related method calls have no reason to return a value,
make them return void.

This allows us to avoid some costly MBB.size() calls


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11448 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 19:49:54 +00:00
Chris Lattner
8604e75721 The prologue/epilogue related method calls have no reason to return a value,
make them return void.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11447 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 19:49:05 +00:00
Chris Lattner
50c372b3d9 fix typeo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11446 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 19:27:26 +00:00
Chris Lattner
300d0eda6f finegrainify namespacification, fix 80col prob
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11445 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 06:00:36 +00:00
Chris Lattner
cc42d2c3cc A target that doesn't support these intrinsics will still meet spec (the
intrinsic will always produce zero), but it will behave unexpectedly, so
warn like GCC does.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11444 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 04:52:06 +00:00
Chris Lattner
9f87a6ce6f Urg, right. These need an input value...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11443 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 04:47:23 +00:00